5 Changes between 1.0.0a and 1.0.1 [xx XXX xxxx]
7 *) Add support for TLS key exporter as described in RFC5705.
8 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
10 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
11 a few changes are required:
13 Add SSL_OP_NO_TLSv1_1 flag.
15 Update version checking logic to handle version 1.1.
16 Add explicit IV handling (ported from DTLS code).
17 Add command line options to s_client/s_server.
20 Changes between 1.0.0a and 1.0.0b [xx XXX xxxx]
24 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
26 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
28 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
30 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
32 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
33 context. The operation can be customised via the ctrl mechanism in
34 case ENGINEs want to include additional functionality.
37 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
40 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
41 output hashes compatible with older versions of OpenSSL.
42 [Willy Weisz <weisz@vcpc.univie.ac.at>]
44 *) Fix compression algorithm handling: if resuming a session use the
45 compression algorithm of the resumed session instead of determining
46 it from client hello again. Don't allow server to change algorithm.
49 *) Add load_crls() function to apps tidying load_certs() too. Add option
50 to verify utility to allow additional CRLs to be included.
53 *) Update OCSP request code to permit adding custom headers to the request:
54 some responders need this.
57 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
59 [Julia Lawall <julia@diku.dk>]
61 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
62 needlessly dereferenced structures, used obsolete functions and
63 didn't handle all updated verify codes correctly.
66 *) Disable MD2 in the default configuration.
69 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
70 indicate the initial BIO being pushed or popped. This makes it possible
71 to determine whether the BIO is the one explicitly called or as a result
72 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
73 it handles reference counts correctly and doesn't zero out the I/O bio
74 when it is not being explicitly popped. WARNING: applications which
75 included workarounds for the old buggy behaviour will need to be modified
76 or they could free up already freed BIOs.
79 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
80 renaming to all platforms (within the 0.9.8 branch, this was
81 done conditionally on Netware platforms to avoid a name clash).
82 [Guenter <lists@gknw.net>]
84 *) Add ECDHE and PSK support to DTLS.
85 [Michael Tuexen <tuexen@fh-muenster.de>]
87 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
91 *) Add "missing" function EVP_MD_flags() (without this the only way to
92 retrieve a digest flags is by accessing the structure directly. Update
93 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
94 or cipher is registered as in the "from" argument. Print out all
95 registered digests in the dgst usage message instead of manually
96 attempting to work them out.
99 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
100 this allows the use of compression and extensions. Change default cipher
101 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
102 by default unless an application cipher string requests it.
105 *) Alter match criteria in PKCS12_parse(). It used to try to use local
106 key ids to find matching certificates and keys but some PKCS#12 files
107 don't follow the (somewhat unwritten) rules and this strategy fails.
108 Now just gather all certificates together and the first private key
109 then look for the first certificate that matches the key.
112 *) Support use of registered digest and cipher names for dgst and cipher
113 commands instead of having to add each one as a special case. So now
120 openssl dgst -sha256 foo
122 and this works for ENGINE based algorithms too.
126 *) Update Gost ENGINE to support parameter files.
127 [Victor B. Wagner <vitus@cryptocom.ru>]
129 *) Support GeneralizedTime in ca utility.
130 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
132 *) Enhance the hash format used for certificate directory links. The new
133 form uses the canonical encoding (meaning equivalent names will work
134 even if they aren't identical) and uses SHA1 instead of MD5. This form
135 is incompatible with the older format and as a result c_rehash should
136 be used to rebuild symbolic links.
139 *) Make PKCS#8 the default write format for private keys, replacing the
140 traditional format. This form is standardised, more secure and doesn't
141 include an implicit MD5 dependency.
144 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
145 committed to OpenSSL should pass this lot as a minimum.
148 *) Add session ticket override functionality for use by EAP-FAST.
149 [Jouni Malinen <j@w1.fi>]
151 *) Modify HMAC functions to return a value. Since these can be implemented
152 in an ENGINE errors can occur.
155 *) Type-checked OBJ_bsearch_ex.
158 *) Type-checked OBJ_bsearch. Also some constification necessitated
159 by type-checking. Still to come: TXT_DB, bsearch(?),
160 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
164 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
165 seconds to a tm structure directly, instead of going through OS
166 specific date routines. This avoids any issues with OS routines such
167 as the year 2038 bug. New *_adj() functions for ASN1 time structures
168 and X509_time_adj_ex() to cover the extended range. The existing
169 X509_time_adj() is still usable and will no longer have any date issues.
172 *) Delta CRL support. New use deltas option which will attempt to locate
173 and search any appropriate delta CRLs available.
175 This work was sponsored by Google.
178 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
179 code and add additional score elements. Validate alternate CRL paths
180 as part of the CRL checking and indicate a new error "CRL path validation
181 error" in this case. Applications wanting additional details can use
182 the verify callback and check the new "parent" field. If this is not
183 NULL CRL path validation is taking place. Existing applications wont
184 see this because it requires extended CRL support which is off by
187 This work was sponsored by Google.
190 *) Support for freshest CRL extension.
192 This work was sponsored by Google.
195 *) Initial indirect CRL support. Currently only supported in the CRLs
196 passed directly and not via lookup. Process certificate issuer
197 CRL entry extension and lookup CRL entries by bother issuer name
198 and serial number. Check and process CRL issuer entry in IDP extension.
200 This work was sponsored by Google.
203 *) Add support for distinct certificate and CRL paths. The CRL issuer
204 certificate is validated separately in this case. Only enabled if
205 an extended CRL support flag is set: this flag will enable additional
206 CRL functionality in future.
208 This work was sponsored by Google.
211 *) Add support for policy mappings extension.
213 This work was sponsored by Google.
216 *) Fixes to pathlength constraint, self issued certificate handling,
217 policy processing to align with RFC3280 and PKITS tests.
219 This work was sponsored by Google.
222 *) Support for name constraints certificate extension. DN, email, DNS
223 and URI types are currently supported.
225 This work was sponsored by Google.
228 *) To cater for systems that provide a pointer-based thread ID rather
229 than numeric, deprecate the current numeric thread ID mechanism and
230 replace it with a structure and associated callback type. This
231 mechanism allows a numeric "hash" to be extracted from a thread ID in
232 either case, and on platforms where pointers are larger than 'long',
233 mixing is done to help ensure the numeric 'hash' is usable even if it
234 can't be guaranteed unique. The default mechanism is to use "&errno"
235 as a pointer-based thread ID to distinguish between threads.
237 Applications that want to provide their own thread IDs should now use
238 CRYPTO_THREADID_set_callback() to register a callback that will call
239 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
241 Note that ERR_remove_state() is now deprecated, because it is tied
242 to the assumption that thread IDs are numeric. ERR_remove_state(0)
243 to free the current thread's error state should be replaced by
244 ERR_remove_thread_state(NULL).
246 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
247 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
248 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
249 application was previously providing a numeric thread callback that
250 was inappropriate for distinguishing threads, then uniqueness might
251 have been obtained with &errno that happened immediately in the
252 intermediate development versions of OpenSSL; this is no longer the
253 case, the numeric thread callback will now override the automatic use
255 [Geoff Thorpe, with help from Bodo Moeller]
257 *) Initial support for different CRL issuing certificates. This covers a
258 simple case where the self issued certificates in the chain exist and
259 the real CRL issuer is higher in the existing chain.
261 This work was sponsored by Google.
264 *) Removed effectively defunct crypto/store from the build.
267 *) Revamp of STACK to provide stronger type-checking. Still to come:
268 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
269 ASN1_STRING, CONF_VALUE.
272 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
273 RAM on SSL connections. This option can save about 34k per idle SSL.
276 *) Revamp of LHASH to provide stronger type-checking. Still to come:
277 STACK, TXT_DB, bsearch, qsort.
280 *) Initial support for Cryptographic Message Syntax (aka CMS) based
281 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
282 support for data, signedData, compressedData, digestedData and
283 encryptedData, envelopedData types included. Scripts to check against
284 RFC4134 examples draft and interop and consistency checks of many
285 content types and variants.
288 *) Add options to enc utility to support use of zlib compression BIO.
291 *) Extend mk1mf to support importing of options and assembly language
292 files from Configure script, currently only included in VC-WIN32.
293 The assembly language rules can now optionally generate the source
294 files from the associated perl scripts.
297 *) Implement remaining functionality needed to support GOST ciphersuites.
298 Interop testing has been performed using CryptoPro implementations.
299 [Victor B. Wagner <vitus@cryptocom.ru>]
301 *) s390x assembler pack.
304 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
308 *) Implement Opaque PRF Input TLS extension as specified in
309 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
310 official specification yet and no extension type assignment by
311 IANA exists, this extension (for now) will have to be explicitly
312 enabled when building OpenSSL by providing the extension number
313 to use. For example, specify an option
315 -DTLSEXT_TYPE_opaque_prf_input=0x9527
317 to the "config" or "Configure" script to enable the extension,
318 assuming extension number 0x9527 (which is a completely arbitrary
319 and unofficial assignment based on the MD5 hash of the Internet
320 Draft). Note that by doing so, you potentially lose
321 interoperability with other TLS implementations since these might
322 be using the same extension number for other purposes.
324 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
325 opaque PRF input value to use in the handshake. This will create
326 an interal copy of the length-'len' string at 'src', and will
327 return non-zero for success.
329 To get more control and flexibility, provide a callback function
332 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
333 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
337 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
340 Callback function 'cb' will be called in handshakes, and is
341 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
342 Argument 'arg' is for application purposes (the value as given to
343 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
344 be provided to the callback function). The callback function
345 has to return non-zero to report success: usually 1 to use opaque
346 PRF input just if possible, or 2 to enforce use of the opaque PRF
347 input. In the latter case, the library will abort the handshake
348 if opaque PRF input is not successfully negotiated.
350 Arguments 'peerinput' and 'len' given to the callback function
351 will always be NULL and 0 in the case of a client. A server will
352 see the client's opaque PRF input through these variables if
353 available (NULL and 0 otherwise). Note that if the server
354 provides an opaque PRF input, the length must be the same as the
355 length of the client's opaque PRF input.
357 Note that the callback function will only be called when creating
358 a new session (session resumption can resume whatever was
359 previously negotiated), and will not be called in SSL 2.0
360 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
361 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
362 for applications that need to enforce opaque PRF input.
366 *) Update ssl code to support digests other than SHA1+MD5 for handshake
369 [Victor B. Wagner <vitus@cryptocom.ru>]
371 *) Add RFC4507 support to OpenSSL. This includes the corrections in
372 RFC4507bis. The encrypted ticket format is an encrypted encoded
373 SSL_SESSION structure, that way new session features are automatically
376 If a client application caches session in an SSL_SESSION structure
377 support is transparent because tickets are now stored in the encoded
380 The SSL_CTX structure automatically generates keys for ticket
381 protection in servers so again support should be possible
382 with no application modification.
384 If a client or server wishes to disable RFC4507 support then the option
385 SSL_OP_NO_TICKET can be set.
387 Add a TLS extension debugging callback to allow the contents of any client
388 or server extensions to be examined.
390 This work was sponsored by Google.
393 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
394 OpenSSL should now compile cleanly on gcc 4.2
395 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
397 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
398 support including streaming MAC support: this is required for GOST
400 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
402 *) Add option -stream to use PKCS#7 streaming in smime utility. New
403 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
404 to output in BER and PEM format.
407 *) Experimental support for use of HMAC via EVP_PKEY interface. This
408 allows HMAC to be handled via the EVP_DigestSign*() interface. The
409 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
410 ENGINE support for HMAC keys which are unextractable. New -mac and
411 -macopt options to dgst utility.
414 *) New option -sigopt to dgst utility. Update dgst to use
415 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
416 alternative signing paramaters such as X9.31 or PSS in the dgst
420 *) Change ssl_cipher_apply_rule(), the internal function that does
421 the work each time a ciphersuite string requests enabling
422 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
423 removing ("!foo+bar") a class of ciphersuites: Now it maintains
424 the order of disabled ciphersuites such that those ciphersuites
425 that most recently went from enabled to disabled not only stay
426 in order with respect to each other, but also have higher priority
427 than other disabled ciphersuites the next time ciphersuites are
430 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
431 the same ciphersuites as with "HIGH" alone, but in a specific
432 order where the PSK ciphersuites come first (since they are the
433 most recently disabled ciphersuites when "HIGH" is parsed).
435 Also, change ssl_create_cipher_list() (using this new
436 funcionality) such that between otherwise identical
437 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
441 *) Change ssl_create_cipher_list() so that it automatically
442 arranges the ciphersuites in reasonable order before starting
443 to process the rule string. Thus, the definition for "DEFAULT"
444 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
445 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
446 This makes it much easier to arrive at a reasonable default order
447 in applications for which anonymous ciphers are OK (meaning
448 that you can't actually use DEFAULT).
449 [Bodo Moeller; suggested by Victor Duchovni]
451 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
452 processing) into multiple integers instead of setting
453 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
454 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
455 (These masks as well as the individual bit definitions are hidden
456 away into the non-exported interface ssl/ssl_locl.h, so this
457 change to the definition of the SSL_CIPHER structure shouldn't
458 affect applications.) This give us more bits for each of these
459 categories, so there is no longer a need to coagulate AES128 and
460 AES256 into a single algorithm bit, and to coagulate Camellia128
461 and Camellia256 into a single algorithm bit, which has led to all
464 Thus, among other things, the kludge introduced in 0.9.7m and
465 0.9.8e for masking out AES256 independently of AES128 or masking
466 out Camellia256 independently of AES256 is not needed here in 0.9.9.
468 With the change, we also introduce new ciphersuite aliases that
469 so far were missing: "AES128", "AES256", "CAMELLIA128", and
473 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
474 Use the leftmost N bytes of the signature input if the input is
475 larger than the prime q (with N being the size in bytes of q).
478 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
479 it yet and it is largely untested.
482 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
485 *) Initial incomplete changes to avoid need for function casts in OpenSSL
486 some compilers (gcc 4.2 and later) reject their use. Safestack is
487 reimplemented. Update ASN1 to avoid use of legacy functions.
490 *) Win32/64 targets are linked with Winsock2.
493 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
494 to external functions. This can be used to increase CRL handling
495 efficiency especially when CRLs are very large by (for example) storing
496 the CRL revoked certificates in a database.
499 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
500 new CRLs added to a directory can be used. New command line option
501 -verify_return_error to s_client and s_server. This causes real errors
502 to be returned by the verify callback instead of carrying on no matter
503 what. This reflects the way a "real world" verify callback would behave.
506 *) GOST engine, supporting several GOST algorithms and public key formats.
507 Kindly donated by Cryptocom.
510 *) Partial support for Issuing Distribution Point CRL extension. CRLs
511 partitioned by DP are handled but no indirect CRL or reason partitioning
512 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
513 selected via a scoring technique which handles IDP and AKID in CRLs.
516 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
517 will ultimately be used for all verify operations: this will remove the
518 X509_STORE dependency on certificate verification and allow alternative
519 lookup methods. X509_STORE based implementations of these two callbacks.
522 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
523 Modify get_crl() to find a valid (unexpired) CRL if possible.
526 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
527 this would be called X509_CRL_cmp() but that name is already used by
528 a function that just compares CRL issuer names. Cache several CRL
529 extensions in X509_CRL structure and cache CRLDP in X509.
532 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
533 this maps equivalent X509_NAME structures into a consistent structure.
534 Name comparison can then be performed rapidly using memcmp().
537 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
541 *) Allow digests to supply their own micalg string for S/MIME type using
542 the ctrl EVP_MD_CTRL_MICALG.
545 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
546 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
547 ctrl. It can then customise the structure before and/or after signing
551 *) New function OBJ_add_sigid() to allow application defined signature OIDs
552 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
553 to free up any added signature OIDs.
556 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
557 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
558 digest and cipher tables. New options added to openssl utility:
559 list-message-digest-algorithms and list-cipher-algorithms.
562 *) Change the array representation of binary polynomials: the list
563 of degrees of non-zero coefficients is now terminated with -1.
564 Previously it was terminated with 0, which was also part of the
565 value; thus, the array representation was not applicable to
566 polynomials where t^0 has coefficient zero. This change makes
567 the array representation useful in a more general context.
570 *) Various modifications and fixes to SSL/TLS cipher string
571 handling. For ECC, the code now distinguishes between fixed ECDH
572 with RSA certificates on the one hand and with ECDSA certificates
573 on the other hand, since these are separate ciphersuites. The
574 unused code for Fortezza ciphersuites has been removed.
576 For consistency with EDH, ephemeral ECDH is now called "EECDH"
577 (not "ECDHE"). For consistency with the code for DH
578 certificates, use of ECDH certificates is now considered ECDH
579 authentication, not RSA or ECDSA authentication (the latter is
580 merely the CA's signing algorithm and not actively used in the
583 The temporary ciphersuite alias "ECCdraft" is no longer
584 available, and ECC ciphersuites are no longer excluded from "ALL"
585 and "DEFAULT". The following aliases now exist for RFC 4492
586 ciphersuites, most of these by analogy with the DH case:
588 kECDHr - ECDH cert, signed with RSA
589 kECDHe - ECDH cert, signed with ECDSA
590 kECDH - ECDH cert (signed with either RSA or ECDSA)
591 kEECDH - ephemeral ECDH
592 ECDH - ECDH cert or ephemeral ECDH
598 AECDH - anonymous ECDH
599 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
603 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
604 Use correct micalg parameters depending on digest(s) in signed message.
607 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
608 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
611 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
612 an engine to register a method. Add ENGINE lookups for methods and
613 functional reference processing.
616 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
617 EVP_{Sign,Verify}* which allow an application to customise the signature
621 *) New -resign option to smime utility. This adds one or more signers
622 to an existing PKCS#7 signedData structure. Also -md option to use an
623 alternative message digest algorithm for signing.
626 *) Tidy up PKCS#7 routines and add new functions to make it easier to
627 create PKCS7 structures containing multiple signers. Update smime
628 application to support multiple signers.
631 *) New -macalg option to pkcs12 utility to allow setting of an alternative
635 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
636 Reorganize PBE internals to lookup from a static table using NIDs,
637 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
638 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
639 PRF which will be automatically used with PBES2.
642 *) Replace the algorithm specific calls to generate keys in "req" with the
646 *) Update PKCS#7 enveloped data routines to use new API. This is now
647 supported by any public key method supporting the encrypt operation. A
648 ctrl is added to allow the public key algorithm to examine or modify
649 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
653 *) Add a ctrl to asn1 method to allow a public key algorithm to express
654 a default digest type to use. In most cases this will be SHA1 but some
655 algorithms (such as GOST) need to specify an alternative digest. The
656 return value indicates how strong the prefernce is 1 means optional and
657 2 is mandatory (that is it is the only supported type). Modify
658 ASN1_item_sign() to accept a NULL digest argument to indicate it should
659 use the default md. Update openssl utilities to use the default digest
660 type for signing if it is not explicitly indicated.
663 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
664 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
665 signing method from the key type. This effectively removes the link
666 between digests and public key types.
669 *) Add an OID cross reference table and utility functions. Its purpose is to
670 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
671 rsaEncryption. This will allow some of the algorithm specific hackery
672 needed to use the correct OID to be removed.
675 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
676 structures for PKCS7_sign(). They are now set up by the relevant public
680 *) Add provisional EC pkey method with support for ECDSA and ECDH.
683 *) Add support for key derivation (agreement) in the API, DH method and
687 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
688 public and private key formats. As a side effect these add additional
689 command line functionality not previously available: DSA signatures can be
690 generated and verified using pkeyutl and DH key support and generation in
695 [Oliver Tappe <zooey@hirschkaefer.de>]
697 *) New make target "install_html_docs" installs HTML renditions of the
699 [Oliver Tappe <zooey@hirschkaefer.de>]
701 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
702 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
703 support key and parameter generation and add initial key generation
704 functionality for RSA.
707 *) Add functions for main EVP_PKEY_method operations. The undocumented
708 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
709 EVP_PKEY_{encrypt,decrypt}_old.
712 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
713 key API, doesn't do much yet.
716 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
717 public key algorithms. New option to openssl utility:
718 "list-public-key-algorithms" to print out info.
721 *) Implement the Supported Elliptic Curves Extension for
722 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
725 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
726 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
729 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
730 utilities such as rsa, dsa, dsaparam etc except they process any key
734 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
735 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
736 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
740 *) Initial support for pluggable public key ASN1.
741 De-spaghettify the public key ASN1 handling. Move public and private
742 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
743 algorithm specific handling to a single module within the relevant
744 algorithm directory. Add functions to allow (near) opaque processing
745 of public and private key structures.
748 *) Implement the Supported Point Formats Extension for
749 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
752 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
753 for the psk identity [hint] and the psk callback functions to the
754 SSL_SESSION, SSL and SSL_CTX structure.
757 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
761 SSL_CTX_use_psk_identity_hint
762 SSL_get_psk_identity_hint
764 SSL_use_psk_identity_hint
766 [Mika Kousa and Pasi Eronen of Nokia Corporation]
768 *) Add RFC 3161 compliant time stamp request creation, response generation
769 and response verification functionality.
770 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
772 *) Add initial support for TLS extensions, specifically for the server_name
773 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
774 have new members for a host name. The SSL data structure has an
775 additional member SSL_CTX *initial_ctx so that new sessions can be
776 stored in that context to allow for session resumption, even after the
777 SSL has been switched to a new SSL_CTX in reaction to a client's
778 server_name extension.
780 New functions (subject to change):
783 SSL_get_servername_type()
786 New CTRL codes and macros (subject to change):
788 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
789 - SSL_CTX_set_tlsext_servername_callback()
790 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
791 - SSL_CTX_set_tlsext_servername_arg()
792 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
794 openssl s_client has a new '-servername ...' option.
796 openssl s_server has new options '-servername_host ...', '-cert2 ...',
797 '-key2 ...', '-servername_fatal' (subject to change). This allows
798 testing the HostName extension for a specific single host name ('-cert'
799 and '-key' remain fallbacks for handshakes without HostName
800 negotiation). If the unrecogninzed_name alert has to be sent, this by
801 default is a warning; it becomes fatal with the '-servername_fatal'
804 [Peter Sylvester, Remy Allais, Christophe Renou]
806 *) Whirlpool hash implementation is added.
809 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
810 bn(64,32). Because of instruction set limitations it doesn't have
811 any negative impact on performance. This was done mostly in order
812 to make it possible to share assembler modules, such as bn_mul_mont
813 implementations, between 32- and 64-bit builds without hassle.
816 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
817 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
821 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
822 dedicated Montgomery multiplication procedure, is introduced.
823 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
824 "64-bit" performance on certain 32-bit targets.
827 *) New option SSL_OP_NO_COMP to disable use of compression selectively
828 in SSL structures. New SSL ctrl to set maximum send fragment size.
829 Save memory by seeting the I/O buffer sizes dynamically instead of
830 using the maximum available value.
833 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
834 in addition to the text details.
837 *) Very, very preliminary EXPERIMENTAL support for printing of general
838 ASN1 structures. This currently produces rather ugly output and doesn't
839 handle several customised structures at all.
842 *) Integrated support for PVK file format and some related formats such
843 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
844 these in the 'rsa' and 'dsa' utilities.
847 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
850 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
851 place for the (very old) "NETSCAPE" format certificates which are now
852 handled using new ASN1 code equivalents.
855 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
856 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
857 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
860 *) Modify CRL distribution points extension code to print out previously
861 unsupported fields. Enhance extension setting code to allow setting of
865 *) Add print and set support for Issuing Distribution Point CRL extension.
868 *) Change 'Configure' script to enable Camellia by default.
871 Changes between 0.9.8n and 0.9.8o [xx XXX xxxx]
873 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
874 access or freeing data twice (CVE-2010-0742)
875 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
877 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
878 common in certificates and some applications which only call
879 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
882 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
884 *) When rejecting SSL/TLS records due to an incorrect version number, never
885 update s->server with a new major version number. As of
886 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
887 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
888 the previous behavior could result in a read attempt at NULL when
889 receiving specific incorrect SSL/TLS records once record payload
890 protection is active. (CVE-2010-####)
891 [Bodo Moeller, Adam Langley]
893 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
894 could be crashed if the relevant tables were not present (e.g. chrooted).
895 [Tomas Hoger <thoger@redhat.com>]
897 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
899 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
900 [Martin Olsson, Neel Mehta]
902 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
903 accommodate for stack sorting, always a write lock!).
906 *) On some versions of WIN32 Heap32Next is very slow. This can cause
907 excessive delays in the RAND_poll(): over a minute. As a workaround
908 include a time check in the inner Heap32Next loop too.
911 *) The code that handled flushing of data in SSL/TLS originally used the
912 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
913 the problem outlined in PR#1949. The fix suggested there however can
914 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
915 of Apache). So instead simplify the code to flush unconditionally.
916 This should be fine since flushing with no data to flush is a no op.
919 *) Handle TLS versions 2.0 and later properly and correctly use the
920 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
921 off ancient servers have a habit of sticking around for a while...
924 *) Modify compression code so it frees up structures without using the
925 ex_data callbacks. This works around a problem where some applications
926 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
927 restarting) then use compression (e.g. SSL with compression) later.
928 This results in significant per-connection memory leaks and
929 has caused some security issues including CVE-2008-1678 and
933 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
934 change when encrypting or decrypting.
937 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
938 connect and renegotiate with servers which do not support RI.
939 Until RI is more widely deployed this option is enabled by default.
942 *) Add "missing" ssl ctrls to clear options and mode.
945 *) If client attempts to renegotiate and doesn't support RI respond with
946 a no_renegotiation alert as required by RFC5746. Some renegotiating
947 TLS clients will continue a connection gracefully when they receive
948 the alert. Unfortunately OpenSSL mishandled this alert and would hang
949 waiting for a server hello which it will never receive. Now we treat a
950 received no_renegotiation alert as a fatal error. This is because
951 applications requesting a renegotiation might well expect it to succeed
952 and would have no code in place to handle the server denying it so the
953 only safe thing to do is to terminate the connection.
956 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
957 peer supports secure renegotiation and 0 otherwise. Print out peer
958 renegotiation support in s_client/s_server.
961 *) Replace the highly broken and deprecated SPKAC certification method with
962 the updated NID creation version. This should correctly handle UTF8.
965 *) Implement RFC5746. Re-enable renegotiation but require the extension
966 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
967 turns out to be a bad idea. It has been replaced by
968 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
969 SSL_CTX_set_options(). This is really not recommended unless you
970 know what you are doing.
971 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
973 *) Fixes to stateless session resumption handling. Use initial_ctx when
974 issuing and attempting to decrypt tickets in case it has changed during
975 servername handling. Use a non-zero length session ID when attempting
976 stateless session resumption: this makes it possible to determine if
977 a resumption has occurred immediately after receiving server hello
978 (several places in OpenSSL subtly assume this) instead of later in
982 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
983 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
984 fixes for a few places where the return code is not checked
986 [Julia Lawall <julia@diku.dk>]
988 *) Add --strict-warnings option to Configure script to include devteam
989 warnings in other configurations.
992 *) Add support for --libdir option and LIBDIR variable in makefiles. This
993 makes it possible to install openssl libraries in locations which
994 have names other than "lib", for example "/usr/lib64" which some
996 [Steve Henson, based on patch from Jeremy Utley]
998 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
999 X690 8.9.12 and can produce some misleading textual output of OIDs.
1000 [Steve Henson, reported by Dan Kaminsky]
1002 *) Delete MD2 from algorithm tables. This follows the recommendation in
1003 several standards that it is not used in new applications due to
1004 several cryptographic weaknesses. For binary compatibility reasons
1005 the MD2 API is still compiled in by default.
1008 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1012 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1013 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1015 [Guenter <lists@gknw.net>]
1017 *) Fix the server certificate chain building code to use X509_verify_cert(),
1018 it used to have an ad-hoc builder which was unable to cope with anything
1019 other than a simple chain.
1020 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1022 *) Don't check self signed certificate signatures in X509_verify_cert()
1023 by default (a flag can override this): it just wastes time without
1024 adding any security. As a useful side effect self signed root CAs
1025 with non-FIPS digests are now usable in FIPS mode.
1028 *) In dtls1_process_out_of_seq_message() the check if the current message
1029 is already buffered was missing. For every new message was memory
1030 allocated, allowing an attacker to perform an denial of service attack
1031 with sending out of seq handshake messages until there is no memory
1032 left. Additionally every future messege was buffered, even if the
1033 sequence number made no sense and would be part of another handshake.
1034 So only messages with sequence numbers less than 10 in advance will be
1035 buffered. (CVE-2009-1378)
1036 [Robin Seggelmann, discovered by Daniel Mentz]
1038 *) Records are buffered if they arrive with a future epoch to be
1039 processed after finishing the corresponding handshake. There is
1040 currently no limitation to this buffer allowing an attacker to perform
1041 a DOS attack with sending records with future epochs until there is no
1042 memory left. This patch adds the pqueue_size() function to detemine
1043 the size of a buffer and limits the record buffer to 100 entries.
1045 [Robin Seggelmann, discovered by Daniel Mentz]
1047 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1048 parent structure is freed. (CVE-2009-1379)
1051 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1052 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1055 [Ilya O. <vrghost@gmail.com>]
1057 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1059 *) Disable renegotiation completely - this fixes a severe security
1060 problem (CVE-2009-3555) at the cost of breaking all
1061 renegotiation. Renegotiation can be re-enabled by setting
1062 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1063 run-time. This is really not recommended unless you know what
1067 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1069 *) Don't set val to NULL when freeing up structures, it is freed up by
1070 underlying code. If sizeof(void *) > sizeof(long) this can result in
1071 zeroing past the valid field. (CVE-2009-0789)
1072 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1074 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1075 checked correctly. This would allow some invalid signed attributes to
1076 appear to verify correctly. (CVE-2009-0591)
1077 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1079 *) Reject UniversalString and BMPString types with invalid lengths. This
1080 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1081 a legal length. (CVE-2009-0590)
1084 *) Set S/MIME signing as the default purpose rather than setting it
1085 unconditionally. This allows applications to override it at the store
1089 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1090 to handle some structures.
1093 *) Improve efficiency of mem_gets: don't search whole buffer each time
1095 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1097 *) New -hex option for openssl rand.
1100 *) Print out UTF8String and NumericString when parsing ASN1.
1103 *) Support NumericString type for name components.
1106 *) Allow CC in the environment to override the automatically chosen
1107 compiler. Note that nothing is done to ensure flags work with the
1111 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1113 *) Properly check EVP_VerifyFinal() and similar return values
1115 [Ben Laurie, Bodo Moeller, Google Security Team]
1117 *) Enable TLS extensions by default.
1120 *) Allow the CHIL engine to be loaded, whether the application is
1121 multithreaded or not. (This does not release the developer from the
1122 obligation to set up the dynamic locking callbacks.)
1123 [Sander Temme <sander@temme.net>]
1125 *) Use correct exit code if there is an error in dgst command.
1126 [Steve Henson; problem pointed out by Roland Dirlewanger]
1128 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1129 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1132 *) Add experimental JPAKE support, including demo authentication in
1133 s_client and s_server.
1136 *) Set the comparison function in v3_addr_canonize().
1137 [Rob Austein <sra@hactrn.net>]
1139 *) Add support for XMPP STARTTLS in s_client.
1140 [Philip Paeps <philip@freebsd.org>]
1142 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1143 to ensure that even with this option, only ciphersuites in the
1144 server's preference list will be accepted. (Note that the option
1145 applies only when resuming a session, so the earlier behavior was
1146 just about the algorithm choice for symmetric cryptography.)
1149 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1151 *) Fix NULL pointer dereference if a DTLS server received
1152 ChangeCipherSpec as first record (CVE-2009-1386).
1155 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1156 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1159 *) The fix in 0.9.8c that supposedly got rid of unsafe
1160 double-checked locking was incomplete for RSA blinding,
1161 addressing just one layer of what turns out to have been
1162 doubly unsafe triple-checked locking.
1164 So now fix this for real by retiring the MONT_HELPER macro
1165 in crypto/rsa/rsa_eay.c.
1167 [Bodo Moeller; problem pointed out by Marius Schilder]
1169 *) Various precautionary measures:
1171 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1173 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1174 (NB: This would require knowledge of the secret session ticket key
1175 to exploit, in which case you'd be SOL either way.)
1177 - Change bn_nist.c so that it will properly handle input BIGNUMs
1178 outside the expected range.
1180 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1183 [Neel Mehta, Bodo Moeller]
1185 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1186 the load fails. Useful for distros.
1187 [Ben Laurie and the FreeBSD team]
1189 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1192 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1195 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1197 This work was sponsored by Logica.
1200 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1201 keystores. Support for SSL/TLS client authentication too.
1202 Not compiled unless enable-capieng specified to Configure.
1204 This work was sponsored by Logica.
1207 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1208 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1209 attribute creation routines such as certifcate requests and PKCS#12
1213 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1215 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1216 handshake which could lead to a cilent crash as found using the
1217 Codenomicon TLS test suite (CVE-2008-1672)
1218 [Steve Henson, Mark Cox]
1220 *) Fix double free in TLS server name extensions which could lead to
1221 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1224 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1226 Clear the error queue to ensure that error entries left from
1227 older function calls do not interfere with the correct operation.
1228 [Lutz Jaenicke, Erik de Castro Lopo]
1230 *) Remove root CA certificates of commercial CAs:
1232 The OpenSSL project does not recommend any specific CA and does not
1233 have any policy with respect to including or excluding any CA.
1234 Therefore it does not make any sense to ship an arbitrary selection
1235 of root CA certificates with the OpenSSL software.
1238 *) RSA OAEP patches to fix two separate invalid memory reads.
1239 The first one involves inputs when 'lzero' is greater than
1240 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1241 before the beginning of from). The second one involves inputs where
1242 the 'db' section contains nothing but zeroes (there is a one-byte
1243 invalid read after the end of 'db').
1244 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1246 *) Partial backport from 0.9.9-dev:
1248 Introduce bn_mul_mont (dedicated Montgomery multiplication
1249 procedure) as a candidate for BIGNUM assembler implementation.
1250 While 0.9.9-dev uses assembler for various architectures, only
1251 x86_64 is available by default here in the 0.9.8 branch, and
1252 32-bit x86 is available through a compile-time setting.
1254 To try the 32-bit x86 assembler implementation, use Configure
1255 option "enable-montasm" (which exists only for this backport).
1257 As "enable-montasm" for 32-bit x86 disclaims code stability
1258 anyway, in this constellation we activate additional code
1259 backported from 0.9.9-dev for further performance improvements,
1260 namely BN_from_montgomery_word. (To enable this otherwise,
1261 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1263 [Andy Polyakov (backport partially by Bodo Moeller)]
1265 *) Add TLS session ticket callback. This allows an application to set
1266 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1267 values. This is useful for key rollover for example where several key
1268 sets may exist with different names.
1271 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1272 This was broken until now in 0.9.8 releases, such that the only way
1273 a registered ENGINE could be used (assuming it initialises
1274 successfully on the host) was to explicitly set it as the default
1275 for the relevant algorithms. This is in contradiction with 0.9.7
1276 behaviour and the documentation. With this fix, when an ENGINE is
1277 registered into a given algorithm's table of implementations, the
1278 'uptodate' flag is reset so that auto-discovery will be used next
1279 time a new context for that algorithm attempts to select an
1281 [Ian Lister (tweaked by Geoff Thorpe)]
1283 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1284 implemention in the following ways:
1286 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1289 Lack of BER streaming support means one pass streaming processing is
1290 only supported if data is detached: setting the streaming flag is
1291 ignored for embedded content.
1293 CMS support is disabled by default and must be explicitly enabled
1294 with the enable-cms configuration option.
1297 *) Update the GMP engine glue to do direct copies between BIGNUM and
1298 mpz_t when openssl and GMP use the same limb size. Otherwise the
1299 existing "conversion via a text string export" trick is still used.
1300 [Paul Sheer <paulsheer@gmail.com>]
1302 *) Zlib compression BIO. This is a filter BIO which compressed and
1303 uncompresses any data passed through it.
1306 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1307 RFC3394 compatible AES key wrapping.
1310 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1311 sets string data without copying. X509_ALGOR_set0() and
1312 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1313 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1314 from an X509_ATTRIBUTE structure optionally checking it occurs only
1315 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1319 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1320 to get the expected BN_FLG_CONSTTIME behavior.
1321 [Bodo Moeller (Google)]
1325 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1326 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1327 - added some more tests to do_tests.pl
1328 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1329 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1330 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1331 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1332 - various changes to netware.pl to enable gcc-cross builds on Win32
1334 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1335 - various changes to fix missing prototype warnings
1336 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1337 - added AES, WHIRLPOOL and CPUID assembler code to build files
1338 - added missing AES assembler make rules to mk1mf.pl
1339 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1340 [Guenter Knauf <eflash@gmx.net>]
1342 *) Implement certificate status request TLS extension defined in RFC3546.
1343 A client can set the appropriate parameters and receive the encoded
1344 OCSP response via a callback. A server can query the supplied parameters
1345 and set the encoded OCSP response in the callback. Add simplified examples
1346 to s_client and s_server.
1349 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1351 *) Fix various bugs:
1352 + Binary incompatibility of ssl_ctx_st structure
1353 + DTLS interoperation with non-compliant servers
1354 + Don't call get_session_cb() without proposed session
1355 + Fix ia64 assembler code
1356 [Andy Polyakov, Steve Henson]
1358 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1360 *) DTLS Handshake overhaul. There were longstanding issues with
1361 OpenSSL DTLS implementation, which were making it impossible for
1362 RFC 4347 compliant client to communicate with OpenSSL server.
1363 Unfortunately just fixing these incompatibilities would "cut off"
1364 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1365 server keeps tolerating non RFC compliant syntax. The opposite is
1366 not true, 0.9.8f client can not communicate with earlier server.
1367 This update even addresses CVE-2007-4995.
1370 *) Changes to avoid need for function casts in OpenSSL: some compilers
1371 (gcc 4.2 and later) reject their use.
1372 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1375 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1376 RFC4507bis. The encrypted ticket format is an encrypted encoded
1377 SSL_SESSION structure, that way new session features are automatically
1380 If a client application caches session in an SSL_SESSION structure
1381 support is transparent because tickets are now stored in the encoded
1384 The SSL_CTX structure automatically generates keys for ticket
1385 protection in servers so again support should be possible
1386 with no application modification.
1388 If a client or server wishes to disable RFC4507 support then the option
1389 SSL_OP_NO_TICKET can be set.
1391 Add a TLS extension debugging callback to allow the contents of any client
1392 or server extensions to be examined.
1394 This work was sponsored by Google.
1397 *) Add initial support for TLS extensions, specifically for the server_name
1398 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1399 have new members for a host name. The SSL data structure has an
1400 additional member SSL_CTX *initial_ctx so that new sessions can be
1401 stored in that context to allow for session resumption, even after the
1402 SSL has been switched to a new SSL_CTX in reaction to a client's
1403 server_name extension.
1405 New functions (subject to change):
1407 SSL_get_servername()
1408 SSL_get_servername_type()
1411 New CTRL codes and macros (subject to change):
1413 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1414 - SSL_CTX_set_tlsext_servername_callback()
1415 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1416 - SSL_CTX_set_tlsext_servername_arg()
1417 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1419 openssl s_client has a new '-servername ...' option.
1421 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1422 '-key2 ...', '-servername_fatal' (subject to change). This allows
1423 testing the HostName extension for a specific single host name ('-cert'
1424 and '-key' remain fallbacks for handshakes without HostName
1425 negotiation). If the unrecogninzed_name alert has to be sent, this by
1426 default is a warning; it becomes fatal with the '-servername_fatal'
1429 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1431 *) Add AES and SSE2 assembly language support to VC++ build.
1434 *) Mitigate attack on final subtraction in Montgomery reduction.
1437 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1438 (which previously caused an internal error).
1441 *) Squeeze another 10% out of IGE mode when in != out.
1444 *) AES IGE mode speedup.
1445 [Dean Gaudet (Google)]
1447 *) Add the Korean symmetric 128-bit cipher SEED (see
1448 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1449 add SEED ciphersuites from RFC 4162:
1451 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1452 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1453 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1454 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1456 To minimize changes between patchlevels in the OpenSSL 0.9.8
1457 series, SEED remains excluded from compilation unless OpenSSL
1458 is configured with 'enable-seed'.
1459 [KISA, Bodo Moeller]
1461 *) Mitigate branch prediction attacks, which can be practical if a
1462 single processor is shared, allowing a spy process to extract
1463 information. For detailed background information, see
1464 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1465 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1466 and Necessary Software Countermeasures"). The core of the change
1467 are new versions BN_div_no_branch() and
1468 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1469 respectively, which are slower, but avoid the security-relevant
1470 conditional branches. These are automatically called by BN_div()
1471 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1472 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1473 remove a conditional branch.
1475 BN_FLG_CONSTTIME is the new name for the previous
1476 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1477 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1478 in the exponent causes BN_mod_exp_mont() to use the alternative
1479 implementation in BN_mod_exp_mont_consttime().) The old name
1480 remains as a deprecated alias.
1482 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1483 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1484 constant-time implementations for more than just exponentiation.
1485 Here too the old name is kept as a deprecated alias.
1487 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1488 the BN_BLINDING structure gets an independent copy of the
1489 modulus. This means that the previous "BIGNUM *m" argument to
1490 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1491 essentially becomes "const BIGNUM *m", although we can't actually
1492 change this in the header file before 0.9.9. It allows
1493 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1494 enable BN_FLG_CONSTTIME.
1496 [Matthew D Wood (Intel Corp)]
1498 *) In the SSL/TLS server implementation, be strict about session ID
1499 context matching (which matters if an application uses a single
1500 external cache for different purposes). Previously,
1501 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1502 set. This did ensure strict client verification, but meant that,
1503 with applications using a single external cache for quite
1504 different requirements, clients could circumvent ciphersuite
1505 restrictions for a given session ID context by starting a session
1506 in a different context.
1509 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1510 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1511 authentication-only ciphersuites.
1514 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1515 not complete and could lead to a possible single byte overflow
1516 (CVE-2007-5135) [Ben Laurie]
1518 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1520 *) Since AES128 and AES256 (and similarly Camellia128 and
1521 Camellia256) share a single mask bit in the logic of
1522 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1523 kludge to work properly if AES128 is available and AES256 isn't
1524 (or if Camellia128 is available and Camellia256 isn't).
1527 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1528 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1529 When a point or a seed is encoded in a BIT STRING, we need to
1530 prevent the removal of trailing zero bits to get the proper DER
1531 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1532 of a NamedBitList, for which trailing 0 bits need to be removed.)
1535 *) Have SSL/TLS server implementation tolerate "mismatched" record
1536 protocol version while receiving ClientHello even if the
1537 ClientHello is fragmented. (The server can't insist on the
1538 particular protocol version it has chosen before the ServerHello
1539 message has informed the client about his choice.)
1542 *) Add RFC 3779 support.
1543 [Rob Austein for ARIN, Ben Laurie]
1545 *) Load error codes if they are not already present instead of using a
1546 static variable. This allows them to be cleanly unloaded and reloaded.
1547 Improve header file function name parsing.
1550 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1551 or CAPABILITY handshake as required by RFCs.
1554 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1556 *) Introduce limits to prevent malicious keys being able to
1557 cause a denial of service. (CVE-2006-2940)
1558 [Steve Henson, Bodo Moeller]
1560 *) Fix ASN.1 parsing of certain invalid structures that can result
1561 in a denial of service. (CVE-2006-2937) [Steve Henson]
1563 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1564 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1566 *) Fix SSL client code which could crash if connecting to a
1567 malicious SSLv2 server. (CVE-2006-4343)
1568 [Tavis Ormandy and Will Drewry, Google Security Team]
1570 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1571 match only those. Before that, "AES256-SHA" would be interpreted
1572 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1573 the same strength classification in 0.9.7h) as we currently only
1574 have a single AES bit in the ciphersuite description bitmap.
1575 That change, however, also applied to ciphersuite strings such as
1576 "RC4-MD5" that intentionally matched multiple ciphersuites --
1577 namely, SSL 2.0 ciphersuites in addition to the more common ones
1578 from SSL 3.0/TLS 1.0.
1580 So we change the selection algorithm again: Naming an explicit
1581 ciphersuite selects this one ciphersuite, and any other similar
1582 ciphersuite (same bitmap) from *other* protocol versions.
1583 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1584 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1586 Since SSL 2.0 does not have any ciphersuites for which the
1587 128/256 bit distinction would be relevant, this works for now.
1588 The proper fix will be to use different bits for AES128 and
1589 AES256, which would have avoided the problems from the beginning;
1590 however, bits are scarce, so we can only do this in a new release
1591 (not just a patchlevel) when we can change the SSL_CIPHER
1592 definition to split the single 'unsigned long mask' bitmap into
1593 multiple values to extend the available space.
1597 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1599 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1600 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1602 *) Add AES IGE and biIGE modes.
1605 *) Change the Unix randomness entropy gathering to use poll() when
1606 possible instead of select(), since the latter has some
1607 undesirable limitations.
1608 [Darryl Miles via Richard Levitte and Bodo Moeller]
1610 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1611 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1612 cannot be implicitly activated as part of, e.g., the "AES" alias.
1613 However, please upgrade to OpenSSL 0.9.9[-dev] for
1614 non-experimental use of the ECC ciphersuites to get TLS extension
1615 support, which is required for curve and point format negotiation
1616 to avoid potential handshake problems.
1619 *) Disable rogue ciphersuites:
1621 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1622 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1623 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1625 The latter two were purportedly from
1626 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1629 Also deactivate the remaining ciphersuites from
1630 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1631 unofficial, and the ID has long expired.
1634 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1635 dual-core machines) and other potential thread-safety issues.
1638 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1639 versions), which is now available for royalty-free use
1640 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1641 Also, add Camellia TLS ciphersuites from RFC 4132.
1643 To minimize changes between patchlevels in the OpenSSL 0.9.8
1644 series, Camellia remains excluded from compilation unless OpenSSL
1645 is configured with 'enable-camellia'.
1648 *) Disable the padding bug check when compression is in use. The padding
1649 bug check assumes the first packet is of even length, this is not
1650 necessarily true if compresssion is enabled and can result in false
1651 positives causing handshake failure. The actual bug test is ancient
1652 code so it is hoped that implementations will either have fixed it by
1653 now or any which still have the bug do not support compression.
1656 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1658 *) When applying a cipher rule check to see if string match is an explicit
1659 cipher suite and only match that one cipher suite if it is.
1662 *) Link in manifests for VC++ if needed.
1663 [Austin Ziegler <halostatue@gmail.com>]
1665 *) Update support for ECC-based TLS ciphersuites according to
1666 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1667 TLS extensions, which are supported starting with the 0.9.9
1668 branch, not in the OpenSSL 0.9.8 branch).
1671 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1672 opaque EVP_CIPHER_CTX handling.
1675 *) Fixes and enhancements to zlib compression code. We now only use
1676 "zlib1.dll" and use the default __cdecl calling convention on Win32
1677 to conform with the standards mentioned here:
1678 http://www.zlib.net/DLL_FAQ.txt
1679 Static zlib linking now works on Windows and the new --with-zlib-include
1680 --with-zlib-lib options to Configure can be used to supply the location
1681 of the headers and library. Gracefully handle case where zlib library
1685 *) Several fixes and enhancements to the OID generation code. The old code
1686 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1687 handle numbers larger than ULONG_MAX, truncated printing and had a
1688 non standard OBJ_obj2txt() behaviour.
1691 *) Add support for building of engines under engine/ as shared libraries
1692 under VC++ build system.
1695 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1696 Hopefully, we will not see any false combination of paths any more.
1699 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1701 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1702 (part of SSL_OP_ALL). This option used to disable the
1703 countermeasure against man-in-the-middle protocol-version
1704 rollback in the SSL 2.0 server implementation, which is a bad
1705 idea. (CVE-2005-2969)
1707 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1708 for Information Security, National Institute of Advanced Industrial
1709 Science and Technology [AIST], Japan)]
1711 *) Add two function to clear and return the verify parameter flags.
1714 *) Keep cipherlists sorted in the source instead of sorting them at
1715 runtime, thus removing the need for a lock.
1718 *) Avoid some small subgroup attacks in Diffie-Hellman.
1719 [Nick Mathewson and Ben Laurie]
1721 *) Add functions for well-known primes.
1724 *) Extended Windows CE support.
1725 [Satoshi Nakamura and Andy Polyakov]
1727 *) Initialize SSL_METHOD structures at compile time instead of during
1728 runtime, thus removing the need for a lock.
1731 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1732 attempting to decrypt each encrypted key in turn. Add support to
1736 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1738 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1741 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1744 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1745 key into the same file any more.
1748 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1751 *) Add -utf8 command line and config file option to 'ca'.
1752 [Stefan <stf@udoma.org]
1754 *) Removed the macro des_crypt(), as it seems to conflict with some
1755 libraries. Use DES_crypt().
1758 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1759 involves renaming the source and generated shared-libs for
1760 both. The engines will accept the corrected or legacy ids
1761 ('ncipher' and '4758_cca' respectively) when binding. NB,
1762 this only applies when building 'shared'.
1763 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1765 *) Add attribute functions to EVP_PKEY structure. Modify
1766 PKCS12_create() to recognize a CSP name attribute and
1767 use it. Make -CSP option work again in pkcs12 utility.
1770 *) Add new functionality to the bn blinding code:
1771 - automatic re-creation of the BN_BLINDING parameters after
1772 a fixed number of uses (currently 32)
1773 - add new function for parameter creation
1774 - introduce flags to control the update behaviour of the
1775 BN_BLINDING parameters
1776 - hide BN_BLINDING structure
1777 Add a second BN_BLINDING slot to the RSA structure to improve
1778 performance when a single RSA object is shared among several
1782 *) Add support for DTLS.
1783 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1785 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1786 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1789 *) Remove buggy and incompletet DH cert support from
1790 ssl/ssl_rsa.c and ssl/s3_both.c
1793 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1794 the apps/openssl applications.
1797 *) Compile clean with "-Wall -Wmissing-prototypes
1798 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1799 DEBUG_SAFESTACK must also be set.
1802 *) Change ./Configure so that certain algorithms can be disabled by default.
1803 The new counterpiece to "no-xxx" is "enable-xxx".
1805 The patented RC5 and MDC2 algorithms will now be disabled unless
1806 "enable-rc5" and "enable-mdc2", respectively, are specified.
1808 (IDEA remains enabled despite being patented. This is because IDEA
1809 is frequently required for interoperability, and there is no license
1810 fee for non-commercial use. As before, "no-idea" can be used to
1811 avoid this algorithm.)
1815 *) Add processing of proxy certificates (see RFC 3820). This work was
1816 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1817 EGEE (Enabling Grids for E-science in Europe).
1820 *) RC4 performance overhaul on modern architectures/implementations, such
1821 as Intel P4, IA-64 and AMD64.
1824 *) New utility extract-section.pl. This can be used specify an alternative
1825 section number in a pod file instead of having to treat each file as
1826 a separate case in Makefile. This can be done by adding two lines to the
1829 =for comment openssl_section:XXX
1831 The blank line is mandatory.
1835 *) New arguments -certform, -keyform and -pass for s_client and s_server
1836 to allow alternative format key and certificate files and passphrase
1840 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1841 update associated structures and add various utility functions.
1843 Add new policy related verify parameters, include policy checking in
1844 standard verify code. Enhance 'smime' application with extra parameters
1845 to support policy checking and print out.
1848 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1849 Nehemiah processors. These extensions support AES encryption in hardware
1850 as well as RNG (though RNG support is currently disabled).
1851 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1853 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1856 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1857 [Andy Polyakov and a number of other people]
1859 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1860 implementation contributed by IBM.
1861 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1863 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1864 exponent rather than 'unsigned long'. There is a corresponding change to
1865 the new 'rsa_keygen' element of the RSA_METHOD structure.
1866 [Jelte Jansen, Geoff Thorpe]
1868 *) Functionality for creating the initial serial number file is now
1869 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1871 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1872 number file to 1, which is bound to cause problems. To avoid
1873 the problems while respecting compatibility between different 0.9.7
1874 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1875 CA.pl for serial number initialization. With the new release 0.9.8,
1876 we can fix the problem directly in the 'ca' utility.)
1879 *) Reduced header interdepencies by declaring more opaque objects in
1880 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1881 give fewer recursive includes, which could break lazy source code - so
1882 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1883 developers should define this symbol when building and using openssl to
1884 ensure they track the recommended behaviour, interfaces, [etc], but
1885 backwards-compatible behaviour prevails when this isn't defined.
1888 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1891 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1892 This will generate a random key of the appropriate length based on the
1893 cipher context. The EVP_CIPHER can provide its own random key generation
1894 routine to support keys of a specific form. This is used in the des and
1895 3des routines to generate a key of the correct parity. Update S/MIME
1896 code to use new functions and hence generate correct parity DES keys.
1897 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1898 valid (weak or incorrect parity).
1901 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1902 as looking them up. This is useful when the verified structure may contain
1903 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1904 present unless the new PKCS7_NO_CRL flag is asserted.
1907 *) Extend ASN1 oid configuration module. It now additionally accepts the
1910 shortName = some long name, 1.2.3.4
1913 *) Reimplemented the BN_CTX implementation. There is now no more static
1914 limitation on the number of variables it can handle nor the depth of the
1915 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1916 information can now expand as required, and rather than having a single
1917 static array of bignums, BN_CTX now uses a linked-list of such arrays
1918 allowing it to expand on demand whilst maintaining the usefulness of
1919 BN_CTX's "bundling".
1922 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1923 to allow all RSA operations to function using a single BN_CTX.
1926 *) Preliminary support for certificate policy evaluation and checking. This
1927 is initially intended to pass the tests outlined in "Conformance Testing
1928 of Relying Party Client Certificate Path Processing Logic" v1.07.
1931 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1932 remained unused and not that useful. A variety of other little bignum
1933 tweaks and fixes have also been made continuing on from the audit (see
1937 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1938 associated ASN1, EVP and SSL functions and old ASN1 macros.
1941 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1942 and this should never fail. So the return value from the use of
1943 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1944 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1947 *) BN_CTX_get() should return zero-valued bignums, providing the same
1948 initialised value as BN_new().
1949 [Geoff Thorpe, suggested by Ulf Möller]
1951 *) Support for inhibitAnyPolicy certificate extension.
1954 *) An audit of the BIGNUM code is underway, for which debugging code is
1955 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1956 is considered valid when processing BIGNUMs, and causes execution to
1957 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1958 further steps are taken to deliberately pollute unused data in BIGNUM
1959 structures to try and expose faulty code further on. For now, openssl will
1960 (in its default mode of operation) continue to tolerate the inconsistent
1961 forms that it has tolerated in the past, but authors and packagers should
1962 consider trying openssl and their own applications when compiled with
1963 these debugging symbols defined. It will help highlight potential bugs in
1964 their own code, and will improve the test coverage for OpenSSL itself. At
1965 some point, these tighter rules will become openssl's default to improve
1966 maintainability, though the assert()s and other overheads will remain only
1967 in debugging configurations. See bn.h for more details.
1968 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1970 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1971 that can only be obtained through BN_CTX_new() (which implicitly
1972 initialises it). The presence of this function only made it possible
1973 to overwrite an existing structure (and cause memory leaks).
1976 *) Because of the callback-based approach for implementing LHASH as a
1977 template type, lh_insert() adds opaque objects to hash-tables and
1978 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1979 to clean up those corresponding objects before destroying the hash table
1980 (and losing the object pointers). So some over-zealous constifications in
1981 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1982 objects as "const" and the lh_doall[_arg] callback wrappers are not
1983 prototyped to have "const" restrictions on the object pointers they are
1984 given (and so aren't required to cast them away any more).
1987 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1988 (speed) prefers to use its own implementation. The two implementations
1989 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1990 its object type properly exposed (MS_TM) instead of casting to/from "char
1991 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1992 aren't necessarily the greatest nomenclatures - but this is what was used
1993 internally to the implementation so I've used that for now.
1996 *) Ensure that deprecated functions do not get compiled when
1997 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1998 the self-tests were still using deprecated key-generation functions so
1999 these have been updated also.
2002 *) Reorganise PKCS#7 code to separate the digest location functionality
2003 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2004 New function PKCS7_set_digest() to set the digest type for PKCS#7
2005 digestedData type. Add additional code to correctly generate the
2006 digestedData type and add support for this type in PKCS7 initialization
2010 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2011 structure of type "other".
2014 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2015 sure the loop does correctly stop and breaking ("division by zero")
2016 modulus operations are not performed. The (pre-generated) prime
2017 table crypto/bn/bn_prime.h was already correct, but it could not be
2018 re-generated on some platforms because of the "division by zero"
2019 situation in the script.
2020 [Ralf S. Engelschall]
2022 *) Update support for ECC-based TLS ciphersuites according to
2023 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2024 SHA-1 now is only used for "small" curves (where the
2025 representation of a field element takes up to 24 bytes); for
2026 larger curves, the field element resulting from ECDH is directly
2027 used as premaster secret.
2028 [Douglas Stebila (Sun Microsystems Laboratories)]
2030 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2031 curve secp160r1 to the tests.
2032 [Douglas Stebila (Sun Microsystems Laboratories)]
2034 *) Add the possibility to load symbols globally with DSO.
2035 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2037 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2038 control of the error stack.
2041 *) Add support for STORE in ENGINE.
2044 *) Add the STORE type. The intention is to provide a common interface
2045 to certificate and key stores, be they simple file-based stores, or
2046 HSM-type store, or LDAP stores, or...
2047 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2050 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2051 pass a list of arguments to any function as well as provide a way
2052 for a function to pass data back to the caller.
2055 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2056 works like BUF_strdup() but can be used to duplicate a portion of
2057 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2061 *) Add the function sk_find_ex() which works like sk_find(), but will
2062 return an index to an element even if an exact match couldn't be
2063 found. The index is guaranteed to point at the element where the
2064 searched-for key would be inserted to preserve sorting order.
2067 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2068 takes an extra flags argument for optional functionality. Currently,
2069 the following flags are defined:
2071 OBJ_BSEARCH_VALUE_ON_NOMATCH
2072 This one gets OBJ_bsearch_ex() to return a pointer to the first
2073 element where the comparing function returns a negative or zero
2076 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2077 This one gets OBJ_bsearch_ex() to return a pointer to the first
2078 element where the comparing function returns zero. This is useful
2079 if there are more than one element where the comparing function
2083 *) Make it possible to create self-signed certificates with 'openssl ca'
2084 in such a way that the self-signed certificate becomes part of the
2085 CA database and uses the same mechanisms for serial number generation
2086 as all other certificate signing. The new flag '-selfsign' enables
2087 this functionality. Adapt CA.sh and CA.pl.in.
2090 *) Add functionality to check the public key of a certificate request
2091 against a given private. This is useful to check that a certificate
2092 request can be signed by that key (self-signing).
2095 *) Make it possible to have multiple active certificates with the same
2096 subject in the CA index file. This is done only if the keyword
2097 'unique_subject' is set to 'no' in the main CA section (default
2098 if 'CA_default') of the configuration file. The value is saved
2099 with the database itself in a separate index attribute file,
2100 named like the index file with '.attr' appended to the name.
2103 *) Generate muti valued AVAs using '+' notation in config files for
2107 *) Support for nameConstraints certificate extension.
2110 *) Support for policyConstraints certificate extension.
2113 *) Support for policyMappings certificate extension.
2116 *) Make sure the default DSA_METHOD implementation only uses its
2117 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2118 and change its own handlers to be NULL so as to remove unnecessary
2119 indirection. This lets alternative implementations fallback to the
2120 default implementation more easily.
2123 *) Support for directoryName in GeneralName related extensions
2127 *) Make it possible to link applications using Makefile.shared.
2128 Make that possible even when linking against static libraries!
2131 *) Support for single pass processing for S/MIME signing. This now
2132 means that S/MIME signing can be done from a pipe, in addition
2133 cleartext signing (multipart/signed type) is effectively streaming
2134 and the signed data does not need to be all held in memory.
2136 This is done with a new flag PKCS7_STREAM. When this flag is set
2137 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2138 is done after the data is output (and digests calculated) in
2139 SMIME_write_PKCS7().
2142 *) Add full support for -rpath/-R, both in shared libraries and
2143 applications, at least on the platforms where it's known how
2147 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2148 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2149 will now compute a table of multiples of the generator that
2150 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2151 faster (notably in the case of a single point multiplication,
2152 scalar * generator).
2153 [Nils Larsch, Bodo Moeller]
2155 *) IPv6 support for certificate extensions. The various extensions
2156 which use the IP:a.b.c.d can now take IPv6 addresses using the
2157 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2161 *) Added an ENGINE that implements RSA by performing private key
2162 exponentiations with the GMP library. The conversions to and from
2163 GMP's mpz_t format aren't optimised nor are any montgomery forms
2164 cached, and on x86 it appears OpenSSL's own performance has caught up.
2165 However there are likely to be other architectures where GMP could
2166 provide a boost. This ENGINE is not built in by default, but it can be
2167 specified at Configure time and should be accompanied by the necessary
2168 linker additions, eg;
2169 ./config -DOPENSSL_USE_GMP -lgmp
2172 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2173 testing availability of engines with "-t" - the old behaviour is
2174 produced by increasing the feature's verbosity with "-tt".
2177 *) ECDSA routines: under certain error conditions uninitialized BN objects
2178 could be freed. Solution: make sure initialization is performed early
2179 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2183 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2184 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2185 software implementations. For DSA and DH, parameter generation can
2186 also be overriden by providing the appropriate method callbacks.
2189 *) Change the "progress" mechanism used in key-generation and
2190 primality testing to functions that take a new BN_GENCB pointer in
2191 place of callback/argument pairs. The new API functions have "_ex"
2192 postfixes and the older functions are reimplemented as wrappers for
2193 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2194 declarations of the old functions to help (graceful) attempts to
2195 migrate to the new functions. Also, the new key-generation API
2196 functions operate on a caller-supplied key-structure and return
2197 success/failure rather than returning a key or NULL - this is to
2198 help make "keygen" another member function of RSA_METHOD etc.
2200 Example for using the new callback interface:
2202 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2206 BN_GENCB_set(&my_cb, my_callback, my_arg);
2208 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2209 /* For the meaning of a, b in calls to my_callback(), see the
2210 * documentation of the function that calls the callback.
2211 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2212 * my_callback should return 1 if it wants BN_is_prime_ex()
2213 * to continue, or 0 to stop.
2218 *) Change the ZLIB compression method to be stateful, and make it
2219 available to TLS with the number defined in
2220 draft-ietf-tls-compression-04.txt.
2223 *) Add the ASN.1 structures and functions for CertificatePair, which
2224 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2226 CertificatePair ::= SEQUENCE {
2227 forward [0] Certificate OPTIONAL,
2228 reverse [1] Certificate OPTIONAL,
2229 -- at least one of the pair shall be present -- }
2231 Also implement the PEM functions to read and write certificate
2232 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2234 This needed to be defined, mostly for the sake of the LDAP
2235 attribute crossCertificatePair, but may prove useful elsewhere as
2239 *) Make it possible to inhibit symlinking of shared libraries in
2240 Makefile.shared, for Cygwin's sake.
2243 *) Extend the BIGNUM API by creating a function
2244 void BN_set_negative(BIGNUM *a, int neg);
2245 and a macro that behave like
2246 int BN_is_negative(const BIGNUM *a);
2248 to avoid the need to access 'a->neg' directly in applications.
2251 *) Implement fast modular reduction for pseudo-Mersenne primes
2252 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2253 EC_GROUP_new_curve_GFp() will now automatically use this
2255 [Nils Larsch <nla@trustcenter.de>]
2257 *) Add new lock type (CRYPTO_LOCK_BN).
2260 *) Change the ENGINE framework to automatically load engines
2261 dynamically from specific directories unless they could be
2262 found to already be built in or loaded. Move all the
2263 current engines except for the cryptodev one to a new
2265 The engines in engines/ are built as shared libraries if
2266 the "shared" options was given to ./Configure or ./config.
2267 Otherwise, they are inserted in libcrypto.a.
2268 /usr/local/ssl/engines is the default directory for dynamic
2269 engines, but that can be overriden at configure time through
2270 the usual use of --prefix and/or --openssldir, and at run
2271 time with the environment variable OPENSSL_ENGINES.
2272 [Geoff Thorpe and Richard Levitte]
2274 *) Add Makefile.shared, a helper makefile to build shared
2275 libraries. Addapt Makefile.org.
2278 *) Add version info to Win32 DLLs.
2279 [Peter 'Luna' Runestig" <peter@runestig.com>]
2281 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2282 can be added using this API to created arbitrary PKCS#12
2283 files while avoiding the low level API.
2285 New options to PKCS12_create(), key or cert can be NULL and
2286 will then be omitted from the output file. The encryption
2287 algorithm NIDs can be set to -1 for no encryption, the mac
2288 iteration count can be set to 0 to omit the mac.
2290 Enhance pkcs12 utility by making the -nokeys and -nocerts
2291 options work when creating a PKCS#12 file. New option -nomac
2292 to omit the mac, NONE can be set for an encryption algorithm.
2293 New code is modified to use the enhanced PKCS12_create()
2294 instead of the low level API.
2297 *) Extend ASN1 encoder to support indefinite length constructed
2298 encoding. This can output sequences tags and octet strings in
2299 this form. Modify pk7_asn1.c to support indefinite length
2300 encoding. This is experimental and needs additional code to
2301 be useful, such as an ASN1 bio and some enhanced streaming
2304 Extend template encode functionality so that tagging is passed
2305 down to the template encoder.
2308 *) Let 'openssl req' fail if an argument to '-newkey' is not
2309 recognized instead of using RSA as a default.
2312 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2313 As these are not official, they are not included in "ALL";
2314 the "ECCdraft" ciphersuite group alias can be used to select them.
2315 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2317 *) Add ECDH engine support.
2318 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2320 *) Add ECDH in new directory crypto/ecdh/.
2321 [Douglas Stebila (Sun Microsystems Laboratories)]
2323 *) Let BN_rand_range() abort with an error after 100 iterations
2324 without success (which indicates a broken PRNG).
2327 *) Change BN_mod_sqrt() so that it verifies that the input value
2328 is really the square of the return value. (Previously,
2329 BN_mod_sqrt would show GIGO behaviour.)
2332 *) Add named elliptic curves over binary fields from X9.62, SECG,
2333 and WAP/WTLS; add OIDs that were still missing.
2335 [Sheueling Chang Shantz and Douglas Stebila
2336 (Sun Microsystems Laboratories)]
2338 *) Extend the EC library for elliptic curves over binary fields
2339 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2342 EC_GF2m_simple_method
2346 EC_GROUP_new_curve_GF2m
2347 EC_GROUP_set_curve_GF2m
2348 EC_GROUP_get_curve_GF2m
2349 EC_POINT_set_affine_coordinates_GF2m
2350 EC_POINT_get_affine_coordinates_GF2m
2351 EC_POINT_set_compressed_coordinates_GF2m
2353 Point compression for binary fields is disabled by default for
2354 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2357 As binary polynomials are represented as BIGNUMs, various members
2358 of the EC_GROUP and EC_POINT data structures can be shared
2359 between the implementations for prime fields and binary fields;
2360 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2361 are essentially identical to their ..._GFp counterparts.
2362 (For simplicity, the '..._GFp' prefix has been dropped from
2363 various internal method names.)
2365 An internal 'field_div' method (similar to 'field_mul' and
2366 'field_sqr') has been added; this is used only for binary fields.
2368 [Sheueling Chang Shantz and Douglas Stebila
2369 (Sun Microsystems Laboratories)]
2371 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2372 through methods ('mul', 'precompute_mult').
2374 The generic implementations (now internally called 'ec_wNAF_mul'
2375 and 'ec_wNAF_precomputed_mult') remain the default if these
2376 methods are undefined.
2378 [Sheueling Chang Shantz and Douglas Stebila
2379 (Sun Microsystems Laboratories)]
2381 *) New function EC_GROUP_get_degree, which is defined through
2382 EC_METHOD. For curves over prime fields, this returns the bit
2383 length of the modulus.
2385 [Sheueling Chang Shantz and Douglas Stebila
2386 (Sun Microsystems Laboratories)]
2388 *) New functions EC_GROUP_dup, EC_POINT_dup.
2389 (These simply call ..._new and ..._copy).
2391 [Sheueling Chang Shantz and Douglas Stebila
2392 (Sun Microsystems Laboratories)]
2394 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2395 Polynomials are represented as BIGNUMs (where the sign bit is not
2396 used) in the following functions [macros]:
2399 BN_GF2m_sub [= BN_GF2m_add]
2400 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2401 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2402 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2404 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2405 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2406 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2407 BN_GF2m_cmp [= BN_ucmp]
2409 (Note that only the 'mod' functions are actually for fields GF(2^m).
2410 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2412 For some functions, an the irreducible polynomial defining a
2413 field can be given as an 'unsigned int[]' with strictly
2414 decreasing elements giving the indices of those bits that are set;
2415 i.e., p[] represents the polynomial
2416 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2418 p[0] > p[1] > ... > p[k] = 0.
2419 This applies to the following functions:
2424 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2425 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2427 BN_GF2m_mod_sqrt_arr
2428 BN_GF2m_mod_solve_quad_arr
2432 Conversion can be performed by the following functions:
2437 bntest.c has additional tests for binary polynomial arithmetic.
2439 Two implementations for BN_GF2m_mod_div() are available.
2440 The default algorithm simply uses BN_GF2m_mod_inv() and
2441 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2442 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2443 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2445 [Sheueling Chang Shantz and Douglas Stebila
2446 (Sun Microsystems Laboratories)]
2448 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2449 functionality is disabled at compile-time.
2450 [Douglas Stebila <douglas.stebila@sun.com>]
2452 *) Change default behaviour of 'openssl asn1parse' so that more
2453 information is visible when viewing, e.g., a certificate:
2455 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2456 mode the content of non-printable OCTET STRINGs is output in a
2457 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2458 avoid the appearance of a printable string.
2459 [Nils Larsch <nla@trustcenter.de>]
2461 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2463 EC_GROUP_set_asn1_flag()
2464 EC_GROUP_get_asn1_flag()
2465 EC_GROUP_set_point_conversion_form()
2466 EC_GROUP_get_point_conversion_form()
2467 These control ASN1 encoding details:
2468 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2469 has been set to OPENSSL_EC_NAMED_CURVE.
2470 - Points are encoded in uncompressed form by default; options for
2471 asn1_for are as for point2oct, namely
2472 POINT_CONVERSION_COMPRESSED
2473 POINT_CONVERSION_UNCOMPRESSED
2474 POINT_CONVERSION_HYBRID
2476 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2479 EC_GROUP_get0_seed()
2480 EC_GROUP_get_seed_len()
2481 This is used only for ASN1 purposes (so far).
2482 [Nils Larsch <nla@trustcenter.de>]
2484 *) Add 'field_type' member to EC_METHOD, which holds the NID
2485 of the appropriate field type OID. The new function
2486 EC_METHOD_get_field_type() returns this value.
2487 [Nils Larsch <nla@trustcenter.de>]
2492 EC_POINT_point2hex()
2493 EC_POINT_hex2point()
2494 providing useful interfaces to EC_POINT_point2oct() and
2495 EC_POINT_oct2point().
2496 [Nils Larsch <nla@trustcenter.de>]
2498 *) Change internals of the EC library so that the functions
2499 EC_GROUP_set_generator()
2500 EC_GROUP_get_generator()
2501 EC_GROUP_get_order()
2502 EC_GROUP_get_cofactor()
2503 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2504 to methods, which would lead to unnecessary code duplication when
2505 adding different types of curves.
2506 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2508 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2509 arithmetic, and such that modified wNAFs are generated
2510 (which avoid length expansion in many cases).
2513 *) Add a function EC_GROUP_check_discriminant() (defined via
2514 EC_METHOD) that verifies that the curve discriminant is non-zero.
2516 Add a function EC_GROUP_check() that makes some sanity tests
2517 on a EC_GROUP, its generator and order. This includes
2518 EC_GROUP_check_discriminant().
2519 [Nils Larsch <nla@trustcenter.de>]
2521 *) Add ECDSA in new directory crypto/ecdsa/.
2523 Add applications 'openssl ecparam' and 'openssl ecdsa'
2524 (these are based on 'openssl dsaparam' and 'openssl dsa').
2526 ECDSA support is also included in various other files across the
2527 library. Most notably,
2528 - 'openssl req' now has a '-newkey ecdsa:file' option;
2529 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2530 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2531 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2532 them suitable for ECDSA where domain parameters must be
2533 extracted before the specific public key;
2534 - ECDSA engine support has been added.
2535 [Nils Larsch <nla@trustcenter.de>]
2537 *) Include some named elliptic curves, and add OIDs from X9.62,
2538 SECG, and WAP/WTLS. Each curve can be obtained from the new
2540 EC_GROUP_new_by_curve_name(),
2541 and the list of available named curves can be obtained with
2542 EC_get_builtin_curves().
2543 Also add a 'curve_name' member to EC_GROUP objects, which can be
2545 EC_GROUP_set_curve_name()
2546 EC_GROUP_get_curve_name()
2547 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2549 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2550 was actually never needed) and in BN_mul(). The removal in BN_mul()
2551 required a small change in bn_mul_part_recursive() and the addition
2552 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2553 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2554 bn_sub_words() and bn_add_words() except they take arrays with
2558 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2560 *) Cleanse PEM buffers before freeing them since they may contain
2562 [Benjamin Bennett <ben@psc.edu>]
2564 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2565 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2566 authentication-only ciphersuites.
2569 *) Since AES128 and AES256 share a single mask bit in the logic of
2570 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2571 kludge to work properly if AES128 is available and AES256 isn't.
2574 *) Expand security boundary to match 1.1.1 module.
2577 *) Remove redundant features: hash file source, editing of test vectors
2578 modify fipsld to use external fips_premain.c signature.
2581 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2582 run algorithm test programs.
2585 *) Make algorithm test programs more tolerant of whitespace.
2588 *) Have SSL/TLS server implementation tolerate "mismatched" record
2589 protocol version while receiving ClientHello even if the
2590 ClientHello is fragmented. (The server can't insist on the
2591 particular protocol version it has chosen before the ServerHello
2592 message has informed the client about his choice.)
2595 *) Load error codes if they are not already present instead of using a
2596 static variable. This allows them to be cleanly unloaded and reloaded.
2599 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2601 *) Introduce limits to prevent malicious keys being able to
2602 cause a denial of service. (CVE-2006-2940)
2603 [Steve Henson, Bodo Moeller]
2605 *) Fix ASN.1 parsing of certain invalid structures that can result
2606 in a denial of service. (CVE-2006-2937) [Steve Henson]
2608 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2609 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2611 *) Fix SSL client code which could crash if connecting to a
2612 malicious SSLv2 server. (CVE-2006-4343)
2613 [Tavis Ormandy and Will Drewry, Google Security Team]
2615 *) Change ciphersuite string processing so that an explicit
2616 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2617 will no longer include "AES128-SHA"), and any other similar
2618 ciphersuite (same bitmap) from *other* protocol versions (so that
2619 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2620 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2621 changes from 0.9.8b and 0.9.8d.
2624 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2626 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2627 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2629 *) Change the Unix randomness entropy gathering to use poll() when
2630 possible instead of select(), since the latter has some
2631 undesirable limitations.
2632 [Darryl Miles via Richard Levitte and Bodo Moeller]
2634 *) Disable rogue ciphersuites:
2636 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2637 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2638 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2640 The latter two were purportedly from
2641 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2644 Also deactive the remaining ciphersuites from
2645 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2646 unofficial, and the ID has long expired.
2649 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2650 dual-core machines) and other potential thread-safety issues.
2653 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2655 *) Adapt fipsld and the build system to link against the validated FIPS
2656 module in FIPS mode.
2659 *) Fixes for VC++ 2005 build under Windows.
2662 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2663 from a Windows bash shell such as MSYS. It is autodetected from the
2664 "config" script when run from a VC++ environment. Modify standard VC++
2665 build to use fipscanister.o from the GNU make build.
2668 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2670 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2671 The value now differs depending on if you build for FIPS or not.
2672 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2673 safely run with a non-FIPSed libcrypto, as it may crash because of
2674 the difference induced by this change.
2677 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2679 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2680 (part of SSL_OP_ALL). This option used to disable the
2681 countermeasure against man-in-the-middle protocol-version
2682 rollback in the SSL 2.0 server implementation, which is a bad
2683 idea. (CVE-2005-2969)
2685 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2686 for Information Security, National Institute of Advanced Industrial
2687 Science and Technology [AIST], Japan)]
2689 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2690 mainly for FIPS compliance and not fully integrated at this stage.
2693 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2694 the exponentiation using a fixed-length exponent. (Otherwise,
2695 the information leaked through timing could expose the secret key
2696 after many signatures; cf. Bleichenbacher's attack on DSA with
2700 *) Make a new fixed-window mod_exp implementation the default for
2701 RSA, DSA, and DH private-key operations so that the sequence of
2702 squares and multiplies and the memory access pattern are
2703 independent of the particular secret key. This will mitigate
2704 cache-timing and potential related attacks.
2706 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2707 and this is automatically used by BN_mod_exp_mont() if the new flag
2708 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2709 will use this BN flag for private exponents unless the flag
2710 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2711 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2713 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2715 *) Change the client implementation for SSLv23_method() and
2716 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2717 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2718 (Previously, the SSL 2.0 backwards compatible Client Hello
2719 message format would be used even with SSL_OP_NO_SSLv2.)
2722 *) Add support for smime-type MIME parameter in S/MIME messages which some
2726 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2727 a threadsafe manner. Modify rsa code to use new function and add calls
2728 to dsa and dh code (which had race conditions before).
2731 *) Include the fixed error library code in the C error file definitions
2732 instead of fixing them up at runtime. This keeps the error code
2733 structures constant.
2736 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2738 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2741 *) Fixes for newer kerberos headers. NB: the casts are needed because
2742 the 'length' field is signed on one version and unsigned on another
2743 with no (?) obvious way to tell the difference, without these VC++
2744 complains. Also the "definition" of FAR (blank) is no longer included
2745 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2746 some needed definitions.
2749 *) Undo Cygwin change.
2752 *) Added support for proxy certificates according to RFC 3820.
2753 Because they may be a security thread to unaware applications,
2754 they must be explicitely allowed in run-time. See
2755 docs/HOWTO/proxy_certificates.txt for further information.
2758 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2760 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2761 server and client random values. Previously
2762 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2763 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2765 This change has negligible security impact because:
2767 1. Server and client random values still have 24 bytes of pseudo random
2770 2. Server and client random values are sent in the clear in the initial
2773 3. The master secret is derived using the premaster secret (48 bytes in
2774 size for static RSA ciphersuites) as well as client server and random
2777 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2780 [Stephen Henson, reported by UK NISCC]
2782 *) Use Windows randomness collection on Cygwin.
2785 *) Fix hang in EGD/PRNGD query when communication socket is closed
2786 prematurely by EGD/PRNGD.
2787 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2789 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2792 *) Back-port of selected performance improvements from development
2793 branch, as well as improved support for PowerPC platforms.
2796 *) Add lots of checks for memory allocation failure, error codes to indicate
2797 failure and freeing up memory if a failure occurs.
2798 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2800 *) Add new -passin argument to dgst.
2803 *) Perform some character comparisons of different types in X509_NAME_cmp:
2804 this is needed for some certificates that reencode DNs into UTF8Strings
2805 (in violation of RFC3280) and can't or wont issue name rollover
2809 *) Make an explicit check during certificate validation to see that
2810 the CA setting in each certificate on the chain is correct. As a
2811 side effect always do the following basic checks on extensions,
2812 not just when there's an associated purpose to the check:
2814 - if there is an unhandled critical extension (unless the user
2815 has chosen to ignore this fault)
2816 - if the path length has been exceeded (if one is set at all)
2817 - that certain extensions fit the associated purpose (if one has
2821 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2823 *) Avoid a race condition when CRLs are checked in a multi threaded
2824 environment. This would happen due to the reordering of the revoked
2825 entries during signature checking and serial number lookup. Now the
2826 encoding is cached and the serial number sort performed under a lock.
2827 Add new STACK function sk_is_sorted().
2830 *) Add Delta CRL to the extension code.
2833 *) Various fixes to s3_pkt.c so alerts are sent properly.
2834 [David Holmes <d.holmes@f5.com>]
2836 *) Reduce the chances of duplicate issuer name and serial numbers (in
2837 violation of RFC3280) using the OpenSSL certificate creation utilities.
2838 This is done by creating a random 64 bit value for the initial serial
2839 number when a serial number file is created or when a self signed
2840 certificate is created using 'openssl req -x509'. The initial serial
2841 number file is created using 'openssl x509 -next_serial' in CA.pl
2842 rather than being initialized to 1.
2845 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2847 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2848 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2849 [Joe Orton, Steve Henson]
2851 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2853 [Joe Orton, Steve Henson]
2855 *) Make it possible to have multiple active certificates with the same
2856 subject in the CA index file. This is done only if the keyword
2857 'unique_subject' is set to 'no' in the main CA section (default
2858 if 'CA_default') of the configuration file. The value is saved
2859 with the database itself in a separate index attribute file,
2860 named like the index file with '.attr' appended to the name.
2863 *) X509 verify fixes. Disable broken certificate workarounds when
2864 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2865 keyUsage extension present. Don't accept CRLs with unhandled critical
2866 extensions: since verify currently doesn't process CRL extensions this
2867 rejects a CRL with *any* critical extensions. Add new verify error codes
2871 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2872 A clarification of RFC2560 will require the use of OCTET STRINGs and
2873 some implementations cannot handle the current raw format. Since OpenSSL
2874 copies and compares OCSP nonces as opaque blobs without any attempt at
2875 parsing them this should not create any compatibility issues.
2878 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2879 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2880 this HMAC (and other) operations are several times slower than OpenSSL
2884 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2885 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2887 *) Use the correct content when signing type "other".
2890 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2892 *) Fix various bugs revealed by running the NISCC test suite:
2894 Stop out of bounds reads in the ASN1 code when presented with
2895 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2897 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2899 If verify callback ignores invalid public key errors don't try to check
2900 certificate signature with the NULL public key.
2904 *) New -ignore_err option in ocsp application to stop the server
2905 exiting on the first error in a request.
2908 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2909 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2913 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2914 extra data after the compression methods not only for TLS 1.0
2915 but also for SSL 3.0 (as required by the specification).
2916 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2918 *) Change X509_certificate_type() to mark the key as exported/exportable
2919 when it's 512 *bits* long, not 512 bytes.
2922 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2923 blocks during encryption.
2926 *) Various fixes to base64 BIO and non blocking I/O. On write
2927 flushes were not handled properly if the BIO retried. On read
2928 data was not being buffered properly and had various logic bugs.
2929 This also affects blocking I/O when the data being decoded is a
2933 *) Various S/MIME bugfixes and compatibility changes:
2934 output correct application/pkcs7 MIME type if
2935 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2936 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2937 of files as .eml work). Correctly handle very long lines in MIME
2941 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2943 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2944 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2945 a protocol version number mismatch like a decryption error
2946 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2949 *) Turn on RSA blinding by default in the default implementation
2950 to avoid a timing attack. Applications that don't want it can call
2951 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2952 They would be ill-advised to do so in most cases.
2953 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2955 *) Change RSA blinding code so that it works when the PRNG is not
2956 seeded (in this case, the secret RSA exponent is abused as
2957 an unpredictable seed -- if it is not unpredictable, there
2958 is no point in blinding anyway). Make RSA blinding thread-safe
2959 by remembering the creator's thread ID in rsa->blinding and
2960 having all other threads use local one-time blinding factors
2961 (this requires more computation than sharing rsa->blinding, but
2962 avoids excessive locking; and if an RSA object is not shared
2963 between threads, blinding will still be very fast).
2966 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2967 ENGINE as defaults for all supported algorithms irrespective of
2968 the 'flags' parameter. 'flags' is now honoured, so applications
2969 should make sure they are passing it correctly.
2972 *) Target "mingw" now allows native Windows code to be generated in
2973 the Cygwin environment as well as with the MinGW compiler.
2976 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2978 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2979 via timing by performing a MAC computation even if incorrrect
2980 block cipher padding has been found. This is a countermeasure
2981 against active attacks where the attacker has to distinguish
2982 between bad padding and a MAC verification error. (CVE-2003-0078)
2984 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2985 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2986 Martin Vuagnoux (EPFL, Ilion)]
2988 *) Make the no-err option work as intended. The intention with no-err
2989 is not to have the whole error stack handling routines removed from
2990 libcrypto, it's only intended to remove all the function name and
2991 reason texts, thereby removing some of the footprint that may not
2992 be interesting if those errors aren't displayed anyway.
2994 NOTE: it's still possible for any application or module to have it's
2995 own set of error texts inserted. The routines are there, just not
2996 used by default when no-err is given.
2999 *) Add support for FreeBSD on IA64.
3000 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3002 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3003 Kerberos function mit_des_cbc_cksum(). Before this change,
3004 the value returned by DES_cbc_cksum() was like the one from
3005 mit_des_cbc_cksum(), except the bytes were swapped.
3006 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3008 *) Allow an application to disable the automatic SSL chain building.
3009 Before this a rather primitive chain build was always performed in
3010 ssl3_output_cert_chain(): an application had no way to send the
3011 correct chain if the automatic operation produced an incorrect result.
3013 Now the chain builder is disabled if either:
3015 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3017 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3019 The reasoning behind this is that an application would not want the
3020 auto chain building to take place if extra chain certificates are
3021 present and it might also want a means of sending no additional
3022 certificates (for example the chain has two certificates and the
3026 *) Add the possibility to build without the ENGINE framework.
3027 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3029 *) Under Win32 gmtime() can return NULL: check return value in
3030 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3033 *) DSA routines: under certain error conditions uninitialized BN objects
3034 could be freed. Solution: make sure initialization is performed early
3035 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3036 Nils Larsch <nla@trustcenter.de> via PR#459)
3039 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3040 checked on reconnect on the client side, therefore session resumption
3041 could still fail with a "ssl session id is different" error. This
3042 behaviour is masked when SSL_OP_ALL is used due to
3043 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3044 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3045 followup to PR #377.
3048 *) IA-32 assembler support enhancements: unified ELF targets, support
3049 for SCO/Caldera platforms, fix for Cygwin shared build.
3052 *) Add support for FreeBSD on sparc64. As a consequence, support for
3053 FreeBSD on non-x86 processors is separate from x86 processors on
3054 the config script, much like the NetBSD support.
3055 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3057 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3059 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3062 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3063 code (06) was taken as the first octet of the session ID and the last
3064 octet was ignored consequently. As a result SSLv2 client side session
3065 caching could not have worked due to the session ID mismatch between
3067 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3071 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3072 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3076 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3077 seems that in spite of existing for more than a year, many application
3078 author have done nothing to provide the necessary callbacks, which
3079 means that this particular engine will not work properly anywhere.
3080 This is a very unfortunate situation which forces us, in the name
3081 of usability, to give the hw_ncipher.c a static lock, which is part
3083 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3084 appear in 0.9.8 or later. We EXPECT application authors to have
3085 dealt properly with this when 0.9.8 is released (unless we actually
3086 make such changes in the libcrypto locking code that changes will
3087 have to be made anyway).
3090 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3091 octets have been read, EOF or an error occurs. Without this change
3092 some truncated ASN1 structures will not produce an error.
3095 *) Disable Heimdal support, since it hasn't been fully implemented.
3096 Still give the possibility to force the use of Heimdal, but with
3097 warnings and a request that patches get sent to openssl-dev.
3100 *) Add the VC-CE target, introduce the WINCE sysname, and add
3101 INSTALL.WCE and appropriate conditionals to make it build.
3102 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3104 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3105 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3106 edit numbers of the version.
3107 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3109 *) Introduce safe string copy and catenation functions
3110 (BUF_strlcpy() and BUF_strlcat()).
3111 [Ben Laurie (CHATS) and Richard Levitte]
3113 *) Avoid using fixed-size buffers for one-line DNs.
3114 [Ben Laurie (CHATS)]
3116 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3117 resizing buffers containing secrets, and use where appropriate.
3118 [Ben Laurie (CHATS)]
3120 *) Avoid using fixed size buffers for configuration file location.
3121 [Ben Laurie (CHATS)]
3123 *) Avoid filename truncation for various CA files.
3124 [Ben Laurie (CHATS)]
3126 *) Use sizeof in preference to magic numbers.
3127 [Ben Laurie (CHATS)]
3129 *) Avoid filename truncation in cert requests.
3130 [Ben Laurie (CHATS)]
3132 *) Add assertions to check for (supposedly impossible) buffer
3134 [Ben Laurie (CHATS)]
3136 *) Don't cache truncated DNS entries in the local cache (this could
3137 potentially lead to a spoofing attack).
3138 [Ben Laurie (CHATS)]
3140 *) Fix various buffers to be large enough for hex/decimal
3141 representations in a platform independent manner.
3142 [Ben Laurie (CHATS)]
3144 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3145 resizing buffers containing secrets, and use where appropriate.
3146 [Ben Laurie (CHATS)]
3148 *) Add BIO_indent() to avoid much slightly worrying code to do
3150 [Ben Laurie (CHATS)]
3152 *) Convert sprintf()/BIO_puts() to BIO_printf().
3153 [Ben Laurie (CHATS)]
3155 *) buffer_gets() could terminate with the buffer only half
3157 [Ben Laurie (CHATS)]
3159 *) Add assertions to prevent user-supplied crypto functions from
3160 overflowing internal buffers by having large block sizes, etc.
3161 [Ben Laurie (CHATS)]
3163 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3165 [Ben Laurie (CHATS)]
3167 *) Eliminate unused copy of key in RC4.
3168 [Ben Laurie (CHATS)]
3170 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3171 [Ben Laurie (CHATS)]
3173 *) Fix off-by-one error in EGD path.
3174 [Ben Laurie (CHATS)]
3176 *) If RANDFILE path is too long, ignore instead of truncating.
3177 [Ben Laurie (CHATS)]
3179 *) Eliminate unused and incorrectly sized X.509 structure
3181 [Ben Laurie (CHATS)]
3183 *) Eliminate unused and dangerous function knumber().
3184 [Ben Laurie (CHATS)]
3186 *) Eliminate unused and dangerous structure, KSSL_ERR.
3187 [Ben Laurie (CHATS)]
3189 *) Protect against overlong session ID context length in an encoded
3190 session object. Since these are local, this does not appear to be
3192 [Ben Laurie (CHATS)]
3194 *) Change from security patch (see 0.9.6e below) that did not affect
3195 the 0.9.6 release series:
3197 Remote buffer overflow in SSL3 protocol - an attacker could
3198 supply an oversized master key in Kerberos-enabled versions.
3200 [Ben Laurie (CHATS)]
3202 *) Change the SSL kerb5 codes to match RFC 2712.
3205 *) Make -nameopt work fully for req and add -reqopt switch.
3206 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3208 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3209 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3211 *) Make sure tests can be performed even if the corresponding algorithms
3212 have been removed entirely. This was also the last step to make
3213 OpenSSL compilable with DJGPP under all reasonable conditions.
3214 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3216 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3217 to allow version independent disabling of normally unselected ciphers,
3218 which may be activated as a side-effect of selecting a single cipher.
3220 (E.g., cipher list string "RSA" enables ciphersuites that are left
3221 out of "ALL" because they do not provide symmetric encryption.
3222 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3223 [Lutz Jaenicke, Bodo Moeller]
3225 *) Add appropriate support for separate platform-dependent build
3226 directories. The recommended way to make a platform-dependent
3227 build directory is the following (tested on Linux), maybe with
3230 # Place yourself outside of the OpenSSL source tree. In
3231 # this example, the environment variable OPENSSL_SOURCE
3232 # is assumed to contain the absolute OpenSSL source directory.
3233 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3234 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3235 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3236 mkdir -p `dirname $F`
3237 ln -s $OPENSSL_SOURCE/$F $F
3240 To be absolutely sure not to disturb the source tree, a "make clean"
3241 is a good thing. If it isn't successfull, don't worry about it,
3242 it probably means the source directory is very clean.
3245 *) Make sure any ENGINE control commands make local copies of string
3246 pointers passed to them whenever necessary. Otherwise it is possible
3247 the caller may have overwritten (or deallocated) the original string
3248 data when a later ENGINE operation tries to use the stored values.
3249 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3251 *) Improve diagnostics in file reading and command-line digests.
3252 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3254 *) Add AES modes CFB and OFB to the object database. Correct an
3255 error in AES-CFB decryption.
3258 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3259 allows existing EVP_CIPHER_CTX structures to be reused after
3260 calling EVP_*Final(). This behaviour is used by encryption
3261 BIOs and some applications. This has the side effect that
3262 applications must explicitly clean up cipher contexts with
3263 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3266 *) Check the values of dna and dnb in bn_mul_recursive before calling
3267 bn_mul_comba (a non zero value means the a or b arrays do not contain
3268 n2 elements) and fallback to bn_mul_normal if either is not zero.
3271 *) Fix escaping of non-ASCII characters when using the -subj option
3272 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3275 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3276 form for "surname", serialNumber has no short form.
3277 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3278 therefore remove "mail" short name for "internet 7".
3279 The OID for unique identifiers in X509 certificates is
3280 x500UniqueIdentifier, not uniqueIdentifier.
3281 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3284 *) Add an "init" command to the ENGINE config module and auto initialize
3285 ENGINEs. Without any "init" command the ENGINE will be initialized
3286 after all ctrl commands have been executed on it. If init=1 the
3287 ENGINE is initailized at that point (ctrls before that point are run
3288 on the uninitialized ENGINE and after on the initialized one). If
3289 init=0 then the ENGINE will not be iniatialized at all.
3292 *) Fix the 'app_verify_callback' interface so that the user-defined
3293 argument is actually passed to the callback: In the
3294 SSL_CTX_set_cert_verify_callback() prototype, the callback
3295 declaration has been changed from
3298 int (*cb)(X509_STORE_CTX *,void *);
3299 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3300 i=s->ctx->app_verify_callback(&ctx)
3301 has been changed into
3302 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3304 To update applications using SSL_CTX_set_cert_verify_callback(),
3305 a dummy argument can be added to their callback functions.
3306 [D. K. Smetters <smetters@parc.xerox.com>]
3308 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3309 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3311 *) Add and OPENSSL_LOAD_CONF define which will cause
3312 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3313 This allows older applications to transparently support certain
3314 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3315 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3316 load the config file and OPENSSL_add_all_algorithms_conf() which will
3317 always load it have also been added.
3320 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3321 Adjust NIDs and EVP layer.
3322 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3324 *) Config modules support in openssl utility.
3326 Most commands now load modules from the config file,
3327 though in a few (such as version) this isn't done
3328 because it couldn't be used for anything.
3330 In the case of ca and req the config file used is
3331 the same as the utility itself: that is the -config
3332 command line option can be used to specify an
3336 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3337 use "openssl_conf" if filename is NULL use default openssl config file.
3340 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3341 config section name. Add a new flag to tolerate a missing config file
3342 and move code to CONF_modules_load_file().
3345 *) Support for crypto accelerator cards from Accelerated Encryption
3346 Processing, www.aep.ie. (Use engine 'aep')
3347 The support was copied from 0.9.6c [engine] and adapted/corrected
3348 to work with the new engine framework.
3349 [AEP Inc. and Richard Levitte]
3351 *) Support for SureWare crypto accelerator cards from Baltimore
3352 Technologies. (Use engine 'sureware')
3353 The support was copied from 0.9.6c [engine] and adapted
3354 to work with the new engine framework.
3357 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3358 make the newer ENGINE framework commands for the CHIL engine work.
3359 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3361 *) Make it possible to produce shared libraries on ReliantUNIX.
3362 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3364 *) Add the configuration target debug-linux-ppro.
3365 Make 'openssl rsa' use the general key loading routines
3366 implemented in apps.c, and make those routines able to
3367 handle the key format FORMAT_NETSCAPE and the variant
3369 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3371 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3372 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3374 *) Add -keyform to rsautl, and document -engine.
3375 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3377 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3378 BIO_R_NO_SUCH_FILE error code rather than the generic
3379 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3382 *) Add new functions
3384 ERR_peek_last_error_line
3385 ERR_peek_last_error_line_data.
3386 These are similar to
3389 ERR_peek_error_line_data,
3390 but report on the latest error recorded rather than the first one
3391 still in the error queue.
3392 [Ben Laurie, Bodo Moeller]
3394 *) default_algorithms option in ENGINE config module. This allows things
3396 default_algorithms = ALL
3397 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3400 *) Prelminary ENGINE config module.
3403 *) New experimental application configuration code.
3406 *) Change the AES code to follow the same name structure as all other
3407 symmetric ciphers, and behave the same way. Move everything to
3408 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3409 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3411 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3412 [Ben Laurie and Theo de Raadt]
3414 *) Add option to output public keys in req command.
3415 [Massimiliano Pala madwolf@openca.org]
3417 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3418 (up to about 10% better than before for P-192 and P-224).
3421 *) New functions/macros
3423 SSL_CTX_set_msg_callback(ctx, cb)
3424 SSL_CTX_set_msg_callback_arg(ctx, arg)
3425 SSL_set_msg_callback(ssl, cb)
3426 SSL_set_msg_callback_arg(ssl, arg)
3428 to request calling a callback function
3430 void cb(int write_p, int version, int content_type,
3431 const void *buf, size_t len, SSL *ssl, void *arg)
3433 whenever a protocol message has been completely received
3434 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3435 protocol version according to which the SSL library interprets
3436 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3437 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3438 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3439 specification (change_cipher_spec(20), alert(21), handshake(22)).
3440 'buf' and 'len' point to the actual message, 'ssl' to the
3441 SSL object, and 'arg' is the application-defined value set by
3442 SSL[_CTX]_set_msg_callback_arg().
3444 'openssl s_client' and 'openssl s_server' have new '-msg' options
3445 to enable a callback that displays all protocol messages.
3448 *) Change the shared library support so shared libraries are built as
3449 soon as the corresponding static library is finished, and thereby get
3450 openssl and the test programs linked against the shared library.
3451 This still only happens when the keyword "shard" has been given to
3452 the configuration scripts.
3454 NOTE: shared library support is still an experimental thing, and
3455 backward binary compatibility is still not guaranteed.
3456 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3458 *) Add support for Subject Information Access extension.
3459 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3461 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3462 additional bytes when new memory had to be allocated, not just
3463 when reusing an existing buffer.
3466 *) New command line and configuration option 'utf8' for the req command.
3467 This allows field values to be specified as UTF8 strings.
3470 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3471 runs for the former and machine-readable output for the latter.
3474 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3475 of the e-mail address in the DN (i.e., it will go into a certificate
3476 extension only). The new configuration file option 'email_in_dn = no'
3477 has the same effect.
3478 [Massimiliano Pala madwolf@openca.org]
3480 *) Change all functions with names starting with des_ to be starting
3481 with DES_ instead. Add wrappers that are compatible with libdes,
3482 but are named _ossl_old_des_*. Finally, add macros that map the
3483 des_* symbols to the corresponding _ossl_old_des_* if libdes
3484 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3485 desired, the des_* symbols will be mapped to DES_*, with one
3488 Since we provide two compatibility mappings, the user needs to
3489 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3490 compatibility is desired. The default (i.e., when that macro
3491 isn't defined) is OpenSSL 0.9.6c compatibility.
3493 There are also macros that enable and disable the support of old
3494 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3495 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3496 are defined, the default will apply: to support the old des routines.
3498 In either case, one must include openssl/des.h to get the correct
3499 definitions. Do not try to just include openssl/des_old.h, that
3502 NOTE: This is a major break of an old API into a new one. Software
3503 authors are encouraged to switch to the DES_ style functions. Some
3504 time in the future, des_old.h and the libdes compatibility functions
3505 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3506 default), and then completely removed.
3509 *) Test for certificates which contain unsupported critical extensions.
3510 If such a certificate is found during a verify operation it is
3511 rejected by default: this behaviour can be overridden by either
3512 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3513 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3514 X509_supported_extension() has also been added which returns 1 if a
3515 particular extension is supported.
3518 *) Modify the behaviour of EVP cipher functions in similar way to digests
3519 to retain compatibility with existing code.
3522 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3523 compatibility with existing code. In particular the 'ctx' parameter does
3524 not have to be to be initialized before the call to EVP_DigestInit() and
3525 it is tidied up after a call to EVP_DigestFinal(). New function
3526 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3527 EVP_MD_CTX_copy() changed to not require the destination to be
3528 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3529 requires the destination to be valid.
3531 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3532 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3535 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3536 so that complete 'Handshake' protocol structures are kept in memory
3537 instead of overwriting 'msg_type' and 'length' with 'body' data.
3540 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3541 [Massimo Santin via Richard Levitte]
3543 *) Major restructuring to the underlying ENGINE code. This includes
3544 reduction of linker bloat, separation of pure "ENGINE" manipulation
3545 (initialisation, etc) from functionality dealing with implementations
3546 of specific crypto iterfaces. This change also introduces integrated
3547 support for symmetric ciphers and digest implementations - so ENGINEs
3548 can now accelerate these by providing EVP_CIPHER and EVP_MD
3549 implementations of their own. This is detailed in crypto/engine/README
3550 as it couldn't be adequately described here. However, there are a few
3551 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3552 were changed in the original introduction of ENGINE code have now
3553 reverted back - the hooking from this code to ENGINE is now a good
3554 deal more passive and at run-time, operations deal directly with
3555 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3556 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3557 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3558 they were not being used by the framework as there is no concept of a
3559 BIGNUM_METHOD and they could not be generalised to the new
3560 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3561 ENGINE_cpy() has been removed as it cannot be consistently defined in
3565 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3568 *) Change mkdef.pl to sort symbols that get the same entry number,
3569 and make sure the automatically generated functions ERR_load_*
3570 become part of libeay.num as well.
3573 *) New function SSL_renegotiate_pending(). This returns true once
3574 renegotiation has been requested (either SSL_renegotiate() call
3575 or HelloRequest/ClientHello receveived from the peer) and becomes
3576 false once a handshake has been completed.
3577 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3578 sends a HelloRequest, but does not ensure that a handshake takes
3579 place. SSL_renegotiate_pending() is useful for checking if the
3580 client has followed the request.)
3583 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3584 By default, clients may request session resumption even during
3585 renegotiation (if session ID contexts permit); with this option,
3586 session resumption is possible only in the first handshake.
3588 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3589 more bits available for options that should not be part of
3590 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3593 *) Add some demos for certificate and certificate request creation.
3596 *) Make maximum certificate chain size accepted from the peer application
3597 settable (SSL*_get/set_max_cert_list()), as proposed by
3598 "Douglas E. Engert" <deengert@anl.gov>.
3601 *) Add support for shared libraries for Unixware-7
3602 (Boyd Lynn Gerber <gerberb@zenez.com>).
3605 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3606 be done prior to destruction. Use this to unload error strings from
3607 ENGINEs that load their own error strings. NB: This adds two new API
3608 functions to "get" and "set" this destroy handler in an ENGINE.
3611 *) Alter all existing ENGINE implementations (except "openssl" and
3612 "openbsd") to dynamically instantiate their own error strings. This
3613 makes them more flexible to be built both as statically-linked ENGINEs
3614 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3615 Also, add stub code to each that makes building them as self-contained
3616 shared-libraries easier (see README.ENGINE).
3619 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3620 implementations into applications that are completely implemented in
3621 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3622 commands that can be used to configure what shared-library to load and
3623 to control aspects of the way it is handled. Also, made an update to
3624 the README.ENGINE file that brings its information up-to-date and
3625 provides some information and instructions on the "dynamic" ENGINE
3626 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3629 *) Make it possible to unload ranges of ERR strings with a new
3630 "ERR_unload_strings" function.
3633 *) Add a copy() function to EVP_MD.
3636 *) Make EVP_MD routines take a context pointer instead of just the
3637 md_data void pointer.
3640 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3641 that the digest can only process a single chunk of data
3642 (typically because it is provided by a piece of
3643 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3644 is only going to provide a single chunk of data, and hence the
3645 framework needn't accumulate the data for oneshot drivers.
3648 *) As with "ERR", make it possible to replace the underlying "ex_data"
3649 functions. This change also alters the storage and management of global
3650 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3651 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3652 index counters. The API functions that use this state have been changed
3653 to take a "class_index" rather than pointers to the class's local STACK
3654 and counter, and there is now an API function to dynamically create new
3655 classes. This centralisation allows us to (a) plug a lot of the
3656 thread-safety problems that existed, and (b) makes it possible to clean
3657 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3658 such data would previously have always leaked in application code and
3659 workarounds were in place to make the memory debugging turn a blind eye
3660 to it. Application code that doesn't use this new function will still
3661 leak as before, but their memory debugging output will announce it now
3662 rather than letting it slide.
3664 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3665 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3666 has a return value to indicate success or failure.
3669 *) Make it possible to replace the underlying "ERR" functions such that the
3670 global state (2 LHASH tables and 2 locks) is only used by the "default"
3671 implementation. This change also adds two functions to "get" and "set"
3672 the implementation prior to it being automatically set the first time
3673 any other ERR function takes place. Ie. an application can call "get",
3674 pass the return value to a module it has just loaded, and that module
3675 can call its own "set" function using that value. This means the
3676 module's "ERR" operations will use (and modify) the error state in the
3677 application and not in its own statically linked copy of OpenSSL code.
3680 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3681 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3682 the operation, and provides a more encapsulated way for external code
3683 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3684 to use these functions rather than manually incrementing the counts.
3686 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3689 *) Add EVP test program.
3692 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3695 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3696 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3697 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3698 These allow a CRL to be built without having to access X509_CRL fields
3699 directly. Modify 'ca' application to use new functions.
3702 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3703 bug workarounds. Rollback attack detection is a security feature.
3704 The problem will only arise on OpenSSL servers when TLSv1 is not
3705 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3706 Software authors not wanting to support TLSv1 will have special reasons
3707 for their choice and can explicitly enable this option.
3708 [Bodo Moeller, Lutz Jaenicke]
3710 *) Rationalise EVP so it can be extended: don't include a union of
3711 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3712 (similar to those existing for EVP_CIPHER_CTX).
3717 EVP_MD_CTX_init(&md); /* new function call */
3718 EVP_DigestInit(&md, EVP_sha1());
3719 EVP_DigestUpdate(&md, in, len);
3720 EVP_DigestFinal(&md, out, NULL);
3721 EVP_MD_CTX_cleanup(&md); /* new function call */
3725 *) Make DES key schedule conform to the usual scheme, as well as
3726 correcting its structure. This means that calls to DES functions
3727 now have to pass a pointer to a des_key_schedule instead of a
3728 plain des_key_schedule (which was actually always a pointer
3731 des_key_schedule ks;
3733 des_set_key_checked(..., &ks);
3734 des_ncbc_encrypt(..., &ks, ...);
3736 (Note that a later change renames 'des_...' into 'DES_...'.)
3739 *) Initial reduction of linker bloat: the use of some functions, such as
3740 PEM causes large amounts of unused functions to be linked in due to
3741 poor organisation. For example pem_all.c contains every PEM function
3742 which has a knock on effect of linking in large amounts of (unused)
3743 ASN1 code. Grouping together similar functions and splitting unrelated
3744 functions prevents this.
3747 *) Cleanup of EVP macros.
3750 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3751 correct _ecb suffix.
3754 *) Add initial OCSP responder support to ocsp application. The
3755 revocation information is handled using the text based index
3756 use by the ca application. The responder can either handle
3757 requests generated internally, supplied in files (for example
3758 via a CGI script) or using an internal minimal server.
3761 *) Add configuration choices to get zlib compression for TLS.
3764 *) Changes to Kerberos SSL for RFC 2712 compliance:
3765 1. Implemented real KerberosWrapper, instead of just using
3766 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3767 2. Implemented optional authenticator field of KerberosWrapper.
3769 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3770 and authenticator structs; see crypto/krb5/.
3772 Generalized Kerberos calls to support multiple Kerberos libraries.
3773 [Vern Staats <staatsvr@asc.hpc.mil>,
3774 Jeffrey Altman <jaltman@columbia.edu>
3775 via Richard Levitte]
3777 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3778 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3779 values for each of the key sizes rather than having just
3780 parameters (and 'speed' generating keys each time).
3783 *) Speed up EVP routines.
3786 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3787 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3788 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3789 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3791 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3792 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3793 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3796 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3798 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3801 *) Added the OS2-EMX target.
3802 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3804 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3805 to support NCONF routines in extension code. New function CONF_set_nconf()
3806 to allow functions which take an NCONF to also handle the old LHASH
3807 structure: this means that the old CONF compatible routines can be
3808 retained (in particular wrt extensions) without having to duplicate the
3809 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3812 *) Enhance the general user interface with mechanisms for inner control
3813 and with possibilities to have yes/no kind of prompts.
3816 *) Change all calls to low level digest routines in the library and
3817 applications to use EVP. Add missing calls to HMAC_cleanup() and
3818 don't assume HMAC_CTX can be copied using memcpy().
3819 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3821 *) Add the possibility to control engines through control names but with
3822 arbitrary arguments instead of just a string.
3823 Change the key loaders to take a UI_METHOD instead of a callback
3824 function pointer. NOTE: this breaks binary compatibility with earlier
3825 versions of OpenSSL [engine].
3826 Adapt the nCipher code for these new conditions and add a card insertion
3830 *) Enhance the general user interface with mechanisms to better support
3831 dialog box interfaces, application-defined prompts, the possibility
3832 to use defaults (for example default passwords from somewhere else)
3833 and interrupts/cancellations.
3836 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3837 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3840 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3841 tidy up some unnecessarily weird code in 'sk_new()').
3842 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3844 *) Change the key loading routines for ENGINEs to use the same kind
3845 callback (pem_password_cb) as all other routines that need this
3849 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3850 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3851 than this minimum value is recommended.
3854 *) New random seeder for OpenVMS, using the system process statistics
3855 that are easily reachable.
3858 *) Windows apparently can't transparently handle global
3859 variables defined in DLLs. Initialisations such as:
3861 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3863 wont compile. This is used by the any applications that need to
3864 declare their own ASN1 modules. This was fixed by adding the option
3865 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3866 needed for static libraries under Win32.
3869 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3870 setting of purpose and trust fields. New X509_STORE trust and
3871 purpose functions and tidy up setting in other SSL functions.
3874 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3875 structure. These are inherited by X509_STORE_CTX when it is
3876 initialised. This allows various defaults to be set in the
3877 X509_STORE structure (such as flags for CRL checking and custom
3878 purpose or trust settings) for functions which only use X509_STORE_CTX
3879 internally such as S/MIME.
3881 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3882 trust settings if they are not set in X509_STORE. This allows X509_STORE
3883 purposes and trust (in S/MIME for example) to override any set by default.
3885 Add command line options for CRL checking to smime, s_client and s_server
3889 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3890 are set then the CRL is looked up in the X509_STORE structure and
3891 its validity and signature checked, then if the certificate is found
3892 in the CRL the verify fails with a revoked error.
3894 Various new CRL related callbacks added to X509_STORE_CTX structure.
3896 Command line options added to 'verify' application to support this.
3898 This needs some additional work, such as being able to handle multiple
3899 CRLs with different times, extension based lookup (rather than just
3900 by subject name) and ultimately more complete V2 CRL extension
3904 *) Add a general user interface API (crypto/ui/). This is designed
3905 to replace things like des_read_password and friends (backward
3906 compatibility functions using this new API are provided).
3907 The purpose is to remove prompting functions from the DES code
3908 section as well as provide for prompting through dialog boxes in
3909 a window system and the like.
3912 *) Add "ex_data" support to ENGINE so implementations can add state at a
3913 per-structure level rather than having to store it globally.
3916 *) Make it possible for ENGINE structures to be copied when retrieved by
3917 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3918 This causes the "original" ENGINE structure to act like a template,
3919 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3920 operational state can be localised to each ENGINE structure, despite the
3921 fact they all share the same "methods". New ENGINE structures returned in
3922 this case have no functional references and the return value is the single
3923 structural reference. This matches the single structural reference returned
3924 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3928 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3929 needs to match any other type at all we need to manually clear the
3933 *) Changes to the "openssl engine" utility to include;
3934 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3935 about an ENGINE's available control commands.
3936 - executing control commands from command line arguments using the
3937 '-pre' and '-post' switches. '-post' is only used if '-t' is
3938 specified and the ENGINE is successfully initialised. The syntax for
3939 the individual commands are colon-separated, for example;
3940 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3943 *) New dynamic control command support for ENGINEs. ENGINEs can now
3944 declare their own commands (numbers), names (strings), descriptions,
3945 and input types for run-time discovery by calling applications. A
3946 subset of these commands are implicitly classed as "executable"
3947 depending on their input type, and only these can be invoked through
3948 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3949 can be based on user input, config files, etc). The distinction is
3950 that "executable" commands cannot return anything other than a boolean
3951 result and can only support numeric or string input, whereas some
3952 discoverable commands may only be for direct use through
3953 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3954 pointers, or other custom uses. The "executable" commands are to
3955 support parameterisations of ENGINE behaviour that can be
3956 unambiguously defined by ENGINEs and used consistently across any
3957 OpenSSL-based application. Commands have been added to all the
3958 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3959 control over shared-library paths without source code alterations.
3962 *) Changed all ENGINE implementations to dynamically allocate their
3963 ENGINEs rather than declaring them statically. Apart from this being
3964 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3965 this also allows the implementations to compile without using the
3966 internal engine_int.h header.
3969 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3970 'const' value. Any code that should be able to modify a RAND_METHOD
3971 should already have non-const pointers to it (ie. they should only
3972 modify their own ones).
3975 *) Made a variety of little tweaks to the ENGINE code.
3976 - "atalla" and "ubsec" string definitions were moved from header files
3977 to C code. "nuron" string definitions were placed in variables
3978 rather than hard-coded - allowing parameterisation of these values
3979 later on via ctrl() commands.
3980 - Removed unused "#if 0"'d code.
3981 - Fixed engine list iteration code so it uses ENGINE_free() to release
3982 structural references.
3983 - Constified the RAND_METHOD element of ENGINE structures.
3984 - Constified various get/set functions as appropriate and added
3985 missing functions (including a catch-all ENGINE_cpy that duplicates
3986 all ENGINE values onto a new ENGINE except reference counts/state).
3987 - Removed NULL parameter checks in get/set functions. Setting a method
3988 or function to NULL is a way of cancelling out a previously set
3989 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3990 and doesn't justify the extra error symbols and code.
3991 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3992 flags from engine_int.h to engine.h.
3993 - Changed prototypes for ENGINE handler functions (init(), finish(),
3994 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3997 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3998 to the algorithm using long division. The binary algorithm can be
3999 used only if the modulus is odd. On 32-bit systems, it is faster
4000 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4001 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4002 up to 450 bits. In 64-bit environments, the binary algorithm
4003 appears to be advantageous for much longer moduli; here we use it
4004 for moduli up to 2048 bits.
4007 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4008 could not support the combine flag in choice fields.
4011 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4012 extensions from a certificate request to the certificate.
4015 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4016 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4017 file: this allows the display of the certificate about to be
4018 signed to be customised, to allow certain fields to be included
4019 or excluded and extension details. The old system didn't display
4020 multicharacter strings properly, omitted fields not in the policy
4021 and couldn't display additional details such as extensions.
4024 *) Function EC_POINTs_mul for multiple scalar multiplication
4025 of an arbitrary number of elliptic curve points
4026 \sum scalars[i]*points[i],
4027 optionally including the generator defined for the EC_GROUP:
4028 scalar*generator + \sum scalars[i]*points[i].
4030 EC_POINT_mul is a simple wrapper function for the typical case
4031 that the point list has just one item (besides the optional
4035 *) First EC_METHODs for curves over GF(p):
4037 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4038 operations and provides various method functions that can also
4039 operate with faster implementations of modular arithmetic.
4041 EC_GFp_mont_method() reuses most functions that are part of
4042 EC_GFp_simple_method, but uses Montgomery arithmetic.
4044 [Bodo Moeller; point addition and point doubling
4045 implementation directly derived from source code provided by
4046 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4048 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4049 crypto/ec/ec_lib.c):
4051 Curves are EC_GROUP objects (with an optional group generator)
4052 based on EC_METHODs that are built into the library.
4054 Points are EC_POINT objects based on EC_GROUP objects.
4056 Most of the framework would be able to handle curves over arbitrary
4057 finite fields, but as there are no obvious types for fields other
4058 than GF(p), some functions are limited to that for now.
4061 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4062 that the file contains a complete HTTP response.
4065 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4066 change the def and num file printf format specifier from "%-40sXXX"
4067 to "%-39s XXX". The latter will always guarantee a space after the
4068 field while the former will cause them to run together if the field
4069 is 40 of more characters long.
4072 *) Constify the cipher and digest 'method' functions and structures
4073 and modify related functions to take constant EVP_MD and EVP_CIPHER
4077 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4078 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4081 *) Modify EVP_Digest*() routines so they now return values. Although the
4082 internal software routines can never fail additional hardware versions
4086 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4088 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4089 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4092 ERR_R_NESTED_ASN1_ERROR
4094 ERR_R_MISSING_ASN1_EOS
4095 were 4 .. 9, conflicting with
4096 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4098 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4099 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4101 Add new error code 'ERR_R_INTERNAL_ERROR'.
4104 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4108 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4109 sets the subject name for a new request or supersedes the
4110 subject name in a given request. Formats that can be parsed are
4111 'CN=Some Name, OU=myOU, C=IT'
4113 'CN=Some Name/OU=myOU/C=IT'.
4115 Add options '-batch' and '-verbose' to 'openssl req'.
4116 [Massimiliano Pala <madwolf@hackmasters.net>]
4118 *) Introduce the possibility to access global variables through
4119 functions on platform were that's the best way to handle exporting
4120 global variables in shared libraries. To enable this functionality,
4121 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4122 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4123 is normally done by Configure or something similar).
4125 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4126 in the source file (foo.c) like this:
4128 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4129 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4131 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4132 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4134 OPENSSL_DECLARE_GLOBAL(int,foo);
4135 #define foo OPENSSL_GLOBAL_REF(foo)
4136 OPENSSL_DECLARE_GLOBAL(double,bar);
4137 #define bar OPENSSL_GLOBAL_REF(bar)
4139 The #defines are very important, and therefore so is including the
4140 header file everywhere where the defined globals are used.
4142 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4143 of ASN.1 items, but that structure is a bit different.
4145 The largest change is in util/mkdef.pl which has been enhanced with
4146 better and easier to understand logic to choose which symbols should
4147 go into the Windows .def files as well as a number of fixes and code
4148 cleanup (among others, algorithm keywords are now sorted
4149 lexicographically to avoid constant rewrites).
4152 *) In BN_div() keep a copy of the sign of 'num' before writing the
4153 result to 'rm' because if rm==num the value will be overwritten
4154 and produce the wrong result if 'num' is negative: this caused
4155 problems with BN_mod() and BN_nnmod().
4158 *) Function OCSP_request_verify(). This checks the signature on an
4159 OCSP request and verifies the signer certificate. The signer
4160 certificate is just checked for a generic purpose and OCSP request
4164 *) Add OCSP_check_validity() function to check the validity of OCSP
4165 responses. OCSP responses are prepared in real time and may only
4166 be a few seconds old. Simply checking that the current time lies
4167 between thisUpdate and nextUpdate max reject otherwise valid responses
4168 caused by either OCSP responder or client clock inaccuracy. Instead
4169 we allow thisUpdate and nextUpdate to fall within a certain period of
4170 the current time. The age of the response can also optionally be
4171 checked. Two new options -validity_period and -status_age added to
4175 *) If signature or public key algorithm is unrecognized print out its
4176 OID rather that just UNKNOWN.
4179 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4180 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4181 ID to be generated from the issuer certificate alone which can then be
4182 passed to OCSP_id_issuer_cmp().
4185 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4186 ASN1 modules to export functions returning ASN1_ITEM pointers
4187 instead of the ASN1_ITEM structures themselves. This adds several
4188 new macros which allow the underlying ASN1 function/structure to
4189 be accessed transparently. As a result code should not use ASN1_ITEM
4190 references directly (such as &X509_it) but instead use the relevant
4191 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4192 use of the new ASN1 code on platforms where exporting structures
4193 is problematical (for example in shared libraries) but exporting
4194 functions returning pointers to structures is not.
4197 *) Add support for overriding the generation of SSL/TLS session IDs.
4198 These callbacks can be registered either in an SSL_CTX or per SSL.
4199 The purpose of this is to allow applications to control, if they wish,
4200 the arbitrary values chosen for use as session IDs, particularly as it
4201 can be useful for session caching in multiple-server environments. A
4202 command-line switch for testing this (and any client code that wishes
4203 to use such a feature) has been added to "s_server".
4204 [Geoff Thorpe, Lutz Jaenicke]
4206 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4207 of the form '#if defined(...) || defined(...) || ...' and
4208 '#if !defined(...) && !defined(...) && ...'. This also avoids
4209 the growing number of special cases it was previously handling.
4212 *) Make all configuration macros available for application by making
4213 sure they are available in opensslconf.h, by giving them names starting
4214 with "OPENSSL_" to avoid conflicts with other packages and by making
4215 sure e_os2.h will cover all platform-specific cases together with
4217 Additionally, it is now possible to define configuration/platform-
4218 specific names (called "system identities"). In the C code, these
4219 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4220 macro with the name beginning with "OPENSSL_SYS_", which is determined
4221 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4225 *) New option -set_serial to 'req' and 'x509' this allows the serial
4226 number to use to be specified on the command line. Previously self
4227 signed certificates were hard coded with serial number 0 and the
4228 CA options of 'x509' had to use a serial number in a file which was
4232 *) New options to 'ca' utility to support V2 CRL entry extensions.
4233 Currently CRL reason, invalidity date and hold instruction are
4234 supported. Add new CRL extensions to V3 code and some new objects.
4237 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4238 disable standard block padding (aka PKCS#5 padding) in the EVP
4239 API, which was previously mandatory. This means that the data is
4240 not padded in any way and so the total length much be a multiple
4241 of the block size, otherwise an error occurs.
4244 *) Initial (incomplete) OCSP SSL support.
4247 *) New function OCSP_parse_url(). This splits up a URL into its host,
4248 port and path components: primarily to parse OCSP URLs. New -url
4249 option to ocsp utility.
4252 *) New nonce behavior. The return value of OCSP_check_nonce() now
4253 reflects the various checks performed. Applications can decide
4254 whether to tolerate certain situations such as an absent nonce
4255 in a response when one was present in a request: the ocsp application
4256 just prints out a warning. New function OCSP_add1_basic_nonce()
4257 this is to allow responders to include a nonce in a response even if
4258 the request is nonce-less.
4261 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4262 skipped when using openssl x509 multiple times on a single input file,
4263 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4266 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4267 set string type: to handle setting ASN1_TIME structures. Fix ca
4268 utility to correctly initialize revocation date of CRLs.
4271 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4272 the clients preferred ciphersuites and rather use its own preferences.
4273 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4274 Internet Explorer by ensuring unchanged hash method during stepup.
4275 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4278 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4279 to aes and add a new 'exist' option to print out symbols that don't
4283 *) Additional options to ocsp utility to allow flags to be set and
4284 additional certificates supplied.
4287 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4288 OCSP client a number of certificate to only verify the response
4292 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4293 handle the new API. Currently only ECB, CBC modes supported. Add new
4296 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4297 Encryption Standard (AES) Ciphersuites for Transport Layer
4298 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4299 not enabled by default and were not part of the "ALL" ciphersuite
4300 alias because they were not yet official; they could be
4301 explicitly requested by specifying the "AESdraft" ciphersuite
4302 group alias. In the final release of OpenSSL 0.9.7, the group
4303 alias is called "AES" and is part of "ALL".)
4304 [Ben Laurie, Steve Henson, Bodo Moeller]
4306 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4307 request to response.
4310 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4311 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4312 extract information from a certificate request. OCSP_response_create()
4313 creates a response and optionally adds a basic response structure.
4314 OCSP_basic_add1_status() adds a complete single response to a basic
4315 response and returns the OCSP_SINGLERESP structure just added (to allow
4316 extensions to be included for example). OCSP_basic_add1_cert() adds a
4317 certificate to a basic response and OCSP_basic_sign() signs a basic
4318 response with various flags. New helper functions ASN1_TIME_check()
4319 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4320 (converts ASN1_TIME to GeneralizedTime).
4323 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4324 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4325 structure from a certificate. X509_pubkey_digest() digests the public_key
4326 contents: this is used in various key identifiers.
4329 *) Make sk_sort() tolerate a NULL argument.
4330 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4332 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4333 passed by the function are trusted implicitly. If any of them signed the
4334 response then it is assumed to be valid and is not verified.
4337 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4338 to data. This was previously part of the PKCS7 ASN1 code. This
4339 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4340 [Steve Henson, reported by Kenneth R. Robinette
4341 <support@securenetterm.com>]
4343 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4344 routines: without these tracing memory leaks is very painful.
4345 Fix leaks in PKCS12 and PKCS7 routines.
4348 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4349 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4350 effectively meant GeneralizedTime would never be used. Now it
4351 is initialised to -1 but X509_time_adj() now has to check the value
4352 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4353 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4354 [Steve Henson, reported by Kenneth R. Robinette
4355 <support@securenetterm.com>]
4357 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4358 result in a zero length in the ASN1_INTEGER structure which was
4359 not consistent with the structure when d2i_ASN1_INTEGER() was used
4360 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4361 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4362 where it did not print out a minus for negative ASN1_INTEGER.
4365 *) Add summary printout to ocsp utility. The various functions which
4366 convert status values to strings have been renamed to:
4367 OCSP_response_status_str(), OCSP_cert_status_str() and
4368 OCSP_crl_reason_str() and are no longer static. New options
4369 to verify nonce values and to disable verification. OCSP response
4370 printout format cleaned up.
4373 *) Add additional OCSP certificate checks. These are those specified
4374 in RFC2560. This consists of two separate checks: the CA of the
4375 certificate being checked must either be the OCSP signer certificate
4376 or the issuer of the OCSP signer certificate. In the latter case the
4377 OCSP signer certificate must contain the OCSP signing extended key
4378 usage. This check is performed by attempting to match the OCSP
4379 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4380 in the OCSP_CERTID structures of the response.
4383 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4384 and related routines. This uses the standard OpenSSL certificate
4385 verify routines to perform initial checks (just CA validity) and
4386 to obtain the certificate chain. Then additional checks will be
4387 performed on the chain. Currently the root CA is checked to see
4388 if it is explicitly trusted for OCSP signing. This is used to set
4389 a root CA as a global signing root: that is any certificate that
4390 chains to that CA is an acceptable OCSP signing certificate.
4393 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4394 extensions from a separate configuration file.
4395 As when reading extensions from the main configuration file,
4396 the '-extensions ...' option may be used for specifying the
4398 [Massimiliano Pala <madwolf@comune.modena.it>]
4400 *) New OCSP utility. Allows OCSP requests to be generated or
4401 read. The request can be sent to a responder and the output
4402 parsed, outputed or printed in text form. Not complete yet:
4403 still needs to check the OCSP response validity.
4406 *) New subcommands for 'openssl ca':
4407 'openssl ca -status <serial>' prints the status of the cert with
4408 the given serial number (according to the index file).
4409 'openssl ca -updatedb' updates the expiry status of certificates
4411 [Massimiliano Pala <madwolf@comune.modena.it>]
4413 *) New '-newreq-nodes' command option to CA.pl. This is like
4414 '-newreq', but calls 'openssl req' with the '-nodes' option
4415 so that the resulting key is not encrypted.
4416 [Damien Miller <djm@mindrot.org>]
4418 *) New configuration for the GNU Hurd.
4419 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4421 *) Initial code to implement OCSP basic response verify. This
4422 is currently incomplete. Currently just finds the signer's
4423 certificate and verifies the signature on the response.
4426 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4427 value of OPENSSLDIR. This is available via the new '-d' option
4428 to 'openssl version', and is also included in 'openssl version -a'.
4431 *) Allowing defining memory allocation callbacks that will be given
4432 file name and line number information in additional arguments
4433 (a const char* and an int). The basic functionality remains, as
4434 well as the original possibility to just replace malloc(),
4435 realloc() and free() by functions that do not know about these
4436 additional arguments. To register and find out the current
4437 settings for extended allocation functions, the following
4438 functions are provided:
4440 CRYPTO_set_mem_ex_functions
4441 CRYPTO_set_locked_mem_ex_functions
4442 CRYPTO_get_mem_ex_functions
4443 CRYPTO_get_locked_mem_ex_functions
4445 These work the same way as CRYPTO_set_mem_functions and friends.
4446 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4447 extended allocation function is enabled.
4448 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4449 a conventional allocation function is enabled.
4450 [Richard Levitte, Bodo Moeller]
4452 *) Finish off removing the remaining LHASH function pointer casts.
4453 There should no longer be any prototype-casting required when using
4454 the LHASH abstraction, and any casts that remain are "bugs". See
4455 the callback types and macros at the head of lhash.h for details
4456 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4459 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4460 If /dev/[u]random devices are not available or do not return enough
4461 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4463 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4464 /etc/entropy will be queried once each in this sequence, quering stops
4465 when enough entropy was collected without querying more sockets.
4468 *) Change the Unix RAND_poll() variant to be able to poll several
4469 random devices, as specified by DEVRANDOM, until a sufficient amount
4470 of data has been collected. We spend at most 10 ms on each file
4471 (select timeout) and read in non-blocking mode. DEVRANDOM now
4472 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4473 (previously it was just the string "/dev/urandom"), so on typical
4474 platforms the 10 ms delay will never occur.
4475 Also separate out the Unix variant to its own file, rand_unix.c.
4476 For VMS, there's a currently-empty rand_vms.c.
4479 *) Move OCSP client related routines to ocsp_cl.c. These
4480 provide utility functions which an application needing
4481 to issue a request to an OCSP responder and analyse the
4482 response will typically need: as opposed to those which an
4483 OCSP responder itself would need which will be added later.
4485 OCSP_request_sign() signs an OCSP request with an API similar
4486 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4487 response. OCSP_response_get1_basic() extracts basic response
4488 from response. OCSP_resp_find_status(): finds and extracts status
4489 information from an OCSP_CERTID structure (which will be created
4490 when the request structure is built). These are built from lower
4491 level functions which work on OCSP_SINGLERESP structures but
4492 wont normally be used unless the application wishes to examine
4493 extensions in the OCSP response for example.
4495 Replace nonce routines with a pair of functions.
4496 OCSP_request_add1_nonce() adds a nonce value and optionally
4497 generates a random value. OCSP_check_nonce() checks the
4498 validity of the nonce in an OCSP response.
4501 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4502 This doesn't copy the supplied OCSP_CERTID and avoids the
4503 need to free up the newly created id. Change return type
4504 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4505 This can then be used to add extensions to the request.
4506 Deleted OCSP_request_new(), since most of its functionality
4507 is now in OCSP_REQUEST_new() (and the case insensitive name
4508 clash) apart from the ability to set the request name which
4509 will be added elsewhere.
4512 *) Update OCSP API. Remove obsolete extensions argument from
4513 various functions. Extensions are now handled using the new
4514 OCSP extension code. New simple OCSP HTTP function which
4515 can be used to send requests and parse the response.
4518 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4519 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4520 uses the special reorder version of SET OF to sort the attributes
4521 and reorder them to match the encoded order. This resolves a long
4522 standing problem: a verify on a PKCS7 structure just after signing
4523 it used to fail because the attribute order did not match the
4524 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4525 it uses the received order. This is necessary to tolerate some broken
4526 software that does not order SET OF. This is handled by encoding
4527 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4528 to produce the required SET OF.
4531 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4532 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4533 files to get correct declarations of the ASN.1 item variables.
4536 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4537 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4538 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4539 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4540 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4541 ASN1_ITEM and no wrapper functions.
4544 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4545 replace the old function pointer based I/O routines. Change most of
4546 the *_d2i_bio() and *_d2i_fp() functions to use these.
4549 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4550 lines, recognice more "algorithms" that can be deselected, and make
4551 it complain about algorithm deselection that isn't recognised.
4554 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4555 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4556 to use new functions. Add NO_ASN1_OLD which can be set to remove
4557 some old style ASN1 functions: this can be used to determine if old
4558 code will still work when these eventually go away.
4561 *) New extension functions for OCSP structures, these follow the
4562 same conventions as certificates and CRLs.
4565 *) New function X509V3_add1_i2d(). This automatically encodes and
4566 adds an extension. Its behaviour can be customised with various
4567 flags to append, replace or delete. Various wrappers added for
4568 certifcates and CRLs.
4571 *) Fix to avoid calling the underlying ASN1 print routine when
4572 an extension cannot be parsed. Correct a typo in the
4573 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4576 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4577 entries for variables.
4580 *) Add functionality to apps/openssl.c for detecting locking
4581 problems: As the program is single-threaded, all we have
4582 to do is register a locking callback using an array for
4583 storing which locks are currently held by the program.
4586 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4587 SSL_get_ex_data_X509_STORE_idx(), which is used in
4588 ssl_verify_cert_chain() and thus can be called at any time
4589 during TLS/SSL handshakes so that thread-safety is essential.
4590 Unfortunately, the ex_data design is not at all suited
4591 for multi-threaded use, so it probably should be abolished.
4594 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4595 [Broadcom, tweaked and integrated by Geoff Thorpe]
4597 *) Move common extension printing code to new function
4598 X509V3_print_extensions(). Reorganise OCSP print routines and
4599 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4602 *) New function X509_signature_print() to remove duplication in some
4606 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4607 set (this was treated exactly the same as SET OF previously). This
4608 is used to reorder the STACK representing the structure to match the
4609 encoding. This will be used to get round a problem where a PKCS7
4610 structure which was signed could not be verified because the STACK
4611 order did not reflect the encoded order.
4614 *) Reimplement the OCSP ASN1 module using the new code.
4617 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4618 for its ASN1 operations. The old style function pointers still exist
4619 for now but they will eventually go away.
4622 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4623 completely replaces the old ASN1 functionality with a table driven
4624 encoder and decoder which interprets an ASN1_ITEM structure describing
4625 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4626 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4627 has also been converted to the new form.
4630 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4631 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4632 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4633 for negative moduli.
4636 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4637 of not touching the result's sign bit.
4640 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4644 *) Changed the LHASH code to use prototypes for callbacks, and created
4645 macros to declare and implement thin (optionally static) functions
4646 that provide type-safety and avoid function pointer casting for the
4647 type-specific callbacks.
4650 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4652 [Veers Staats <staatsvr@asc.hpc.mil>,
4653 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4655 *) Reformat the FAQ so the different questions and answers can be divided
4656 in sections depending on the subject.
4659 *) Have the zlib compression code load ZLIB.DLL dynamically under
4663 *) New function BN_mod_sqrt for computing square roots modulo a prime
4664 (using the probabilistic Tonelli-Shanks algorithm unless
4665 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4666 be handled deterministically).
4667 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4669 *) Make BN_mod_inverse faster by explicitly handling small quotients
4670 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4671 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4674 *) New function BN_kronecker.
4677 *) Fix BN_gcd so that it works on negative inputs; the result is
4678 positive unless both parameters are zero.
4679 Previously something reasonably close to an infinite loop was
4680 possible because numbers could be growing instead of shrinking
4681 in the implementation of Euclid's algorithm.
4684 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4685 sign of the number in question.
4687 Fix BN_is_word(a,w) to work correctly for w == 0.
4689 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4690 because its test if the absolute value of 'a' equals 'w'.
4691 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4692 it exists mostly for use in the implementations of BN_is_zero(),
4693 BN_is_one(), and BN_is_word().
4696 *) New function BN_swap.
4699 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4700 the exponentiation functions are more likely to produce reasonable
4701 results on negative inputs.
4704 *) Change BN_mod_mul so that the result is always non-negative.
4705 Previously, it could be negative if one of the factors was negative;
4706 I don't think anyone really wanted that behaviour.
4709 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4710 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4711 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4712 and add new functions:
4721 BN_mod_lshift1_quick
4725 These functions always generate non-negative results.
4727 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4728 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4730 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4731 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4732 be reduced modulo m.
4733 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4736 The following entry accidentily appeared in the CHANGES file
4737 distributed with OpenSSL 0.9.7. The modifications described in
4738 it do *not* apply to OpenSSL 0.9.7.
4740 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4741 was actually never needed) and in BN_mul(). The removal in BN_mul()
4742 required a small change in bn_mul_part_recursive() and the addition
4743 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4744 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4745 bn_sub_words() and bn_add_words() except they take arrays with
4750 *) In 'openssl passwd', verify passwords read from the terminal
4751 unless the '-salt' option is used (which usually means that
4752 verification would just waste user's time since the resulting
4753 hash is going to be compared with some given password hash)
4754 or the new '-noverify' option is used.
4756 This is an incompatible change, but it does not affect
4757 non-interactive use of 'openssl passwd' (passwords on the command
4758 line, '-stdin' option, '-in ...' option) and thus should not
4762 *) Remove all references to RSAref, since there's no more need for it.
4765 *) Make DSO load along a path given through an environment variable
4766 (SHLIB_PATH) with shl_load().
4769 *) Constify the ENGINE code as a result of BIGNUM constification.
4770 Also constify the RSA code and most things related to it. In a
4771 few places, most notable in the depth of the ASN.1 code, ugly
4772 casts back to non-const were required (to be solved at a later
4776 *) Make it so the openssl application has all engines loaded by default.
4779 *) Constify the BIGNUM routines a little more.
4782 *) Add the following functions:
4784 ENGINE_load_cswift()
4786 ENGINE_load_atalla()
4788 ENGINE_load_builtin_engines()
4790 That way, an application can itself choose if external engines that
4791 are built-in in OpenSSL shall ever be used or not. The benefit is
4792 that applications won't have to be linked with libdl or other dso
4793 libraries unless it's really needed.
4795 Changed 'openssl engine' to load all engines on demand.
4796 Changed the engine header files to avoid the duplication of some
4797 declarations (they differed!).
4800 *) 'openssl engine' can now list capabilities.
4803 *) Better error reporting in 'openssl engine'.
4806 *) Never call load_dh_param(NULL) in s_server.
4809 *) Add engine application. It can currently list engines by name and
4810 identity, and test if they are actually available.
4813 *) Improve RPM specification file by forcing symbolic linking and making
4814 sure the installed documentation is also owned by root.root.
4815 [Damien Miller <djm@mindrot.org>]
4817 *) Give the OpenSSL applications more possibilities to make use of
4818 keys (public as well as private) handled by engines.
4821 *) Add OCSP code that comes from CertCo.
4824 *) Add VMS support for the Rijndael code.
4827 *) Added untested support for Nuron crypto accelerator.
4830 *) Add support for external cryptographic devices. This code was
4831 previously distributed separately as the "engine" branch.
4832 [Geoff Thorpe, Richard Levitte]
4834 *) Rework the filename-translation in the DSO code. It is now possible to
4835 have far greater control over how a "name" is turned into a filename
4836 depending on the operating environment and any oddities about the
4837 different shared library filenames on each system.
4840 *) Support threads on FreeBSD-elf in Configure.
4843 *) Fix for SHA1 assembly problem with MASM: it produces
4844 warnings about corrupt line number information when assembling
4845 with debugging information. This is caused by the overlapping
4847 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4850 NCONF_get_number() has no error checking at all. As a replacement,
4851 NCONF_get_number_e() is defined (_e for "error checking") and is
4852 promoted strongly. The old NCONF_get_number is kept around for
4853 binary backward compatibility.
4854 Make it possible for methods to load from something other than a BIO,
4855 by providing a function pointer that is given a name instead of a BIO.
4856 For example, this could be used to load configuration data from an
4860 *) Fix for non blocking accept BIOs. Added new I/O special reason
4861 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4862 with non blocking I/O was not possible because no retry code was
4863 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4867 *) Added the beginnings of Rijndael support.
4870 *) Fix for bug in DirectoryString mask setting. Add support for
4871 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4872 to allow certificate printing to more controllable, additional
4873 'certopt' option to 'x509' to allow new printing options to be
4877 *) Clean old EAY MD5 hack from e_os.h.
4880 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4882 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4883 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4884 [Joe Orton, Steve Henson]
4886 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4888 *) Fix additional bug revealed by the NISCC test suite:
4890 Stop bug triggering large recursion when presented with
4891 certain ASN.1 tags (CVE-2003-0851)
4894 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4896 *) Fix various bugs revealed by running the NISCC test suite:
4898 Stop out of bounds reads in the ASN1 code when presented with
4899 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4901 If verify callback ignores invalid public key errors don't try to check
4902 certificate signature with the NULL public key.
4906 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4907 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4911 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4912 extra data after the compression methods not only for TLS 1.0
4913 but also for SSL 3.0 (as required by the specification).
4914 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4916 *) Change X509_certificate_type() to mark the key as exported/exportable
4917 when it's 512 *bits* long, not 512 bytes.
4920 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4922 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4923 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4924 a protocol version number mismatch like a decryption error
4925 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4928 *) Turn on RSA blinding by default in the default implementation
4929 to avoid a timing attack. Applications that don't want it can call
4930 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4931 They would be ill-advised to do so in most cases.
4932 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4934 *) Change RSA blinding code so that it works when the PRNG is not
4935 seeded (in this case, the secret RSA exponent is abused as
4936 an unpredictable seed -- if it is not unpredictable, there
4937 is no point in blinding anyway). Make RSA blinding thread-safe
4938 by remembering the creator's thread ID in rsa->blinding and
4939 having all other threads use local one-time blinding factors
4940 (this requires more computation than sharing rsa->blinding, but
4941 avoids excessive locking; and if an RSA object is not shared
4942 between threads, blinding will still be very fast).
4945 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4947 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4948 via timing by performing a MAC computation even if incorrrect
4949 block cipher padding has been found. This is a countermeasure
4950 against active attacks where the attacker has to distinguish
4951 between bad padding and a MAC verification error. (CVE-2003-0078)
4953 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4954 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4955 Martin Vuagnoux (EPFL, Ilion)]
4957 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4959 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4960 memory from it's contents. This is done with a counter that will
4961 place alternating values in each byte. This can be used to solve
4962 two issues: 1) the removal of calls to memset() by highly optimizing
4963 compilers, and 2) cleansing with other values than 0, since those can
4964 be read through on certain media, for example a swap space on disk.
4967 *) Bugfix: client side session caching did not work with external caching,
4968 because the session->cipher setting was not restored when reloading
4969 from the external cache. This problem was masked, when
4970 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4971 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4974 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4975 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4976 [Zeev Lieber <zeev-l@yahoo.com>]
4978 *) Undo an undocumented change introduced in 0.9.6e which caused
4979 repeated calls to OpenSSL_add_all_ciphers() and
4980 OpenSSL_add_all_digests() to be ignored, even after calling
4984 *) Change the default configuration reader to deal with last line not
4985 being properly terminated.
4988 *) Change X509_NAME_cmp() so it applies the special rules on handling
4989 DN values that are of type PrintableString, as well as RDNs of type
4990 emailAddress where the value has the type ia5String.
4991 [stefank@valicert.com via Richard Levitte]
4993 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4994 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4995 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4996 the bitwise-OR of the two for use by the majority of applications
4997 wanting this behaviour, and update the docs. The documented
4998 behaviour and actual behaviour were inconsistent and had been
4999 changing anyway, so this is more a bug-fix than a behavioural
5001 [Geoff Thorpe, diagnosed by Nadav Har'El]
5003 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5004 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5007 *) Fix initialization code race conditions in
5008 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5009 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5010 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5011 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5012 ssl2_get_cipher_by_char(),
5013 ssl3_get_cipher_by_char().
5014 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5016 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5017 the cached sessions are flushed, as the remove_cb() might use ex_data
5018 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5019 (see [openssl.org #212]).
5020 [Geoff Thorpe, Lutz Jaenicke]
5022 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5023 length, instead of the encoding length to d2i_ASN1_OBJECT.
5026 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5028 *) [In 0.9.6g-engine release:]
5029 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5030 [Lynn Gazis <lgazis@rainbow.com>]
5032 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5034 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5035 and get fix the header length calculation.
5036 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5037 Alon Kantor <alonk@checkpoint.com> (and others),
5040 *) Use proper error handling instead of 'assertions' in buffer
5041 overflow checks added in 0.9.6e. This prevents DoS (the
5042 assertions could call abort()).
5043 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5045 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5047 *) Add various sanity checks to asn1_get_length() to reject
5048 the ASN1 length bytes if they exceed sizeof(long), will appear
5049 negative or the content length exceeds the length of the
5051 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5053 *) Fix cipher selection routines: ciphers without encryption had no flags
5054 for the cipher strength set and where therefore not handled correctly
5055 by the selection routines (PR #130).
5058 *) Fix EVP_dsa_sha macro.
5062 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5063 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5064 that was added in OpenSSL 0.9.6d.
5066 As the countermeasure turned out to be incompatible with some
5067 broken SSL implementations, the new option is part of SSL_OP_ALL.
5068 SSL_OP_ALL is usually employed when compatibility with weird SSL
5069 implementations is desired (e.g. '-bugs' option to 's_client' and
5070 's_server'), so the new option is automatically set in many
5074 *) Changes in security patch:
5076 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5077 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5078 Air Force Materiel Command, USAF, under agreement number
5081 *) Add various sanity checks to asn1_get_length() to reject
5082 the ASN1 length bytes if they exceed sizeof(long), will appear
5083 negative or the content length exceeds the length of the
5084 supplied buffer. (CVE-2002-0659)
5085 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5087 *) Assertions for various potential buffer overflows, not known to
5089 [Ben Laurie (CHATS)]
5091 *) Various temporary buffers to hold ASCII versions of integers were
5092 too small for 64 bit platforms. (CVE-2002-0655)
5093 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5095 *) Remote buffer overflow in SSL3 protocol - an attacker could
5096 supply an oversized session ID to a client. (CVE-2002-0656)
5097 [Ben Laurie (CHATS)]
5099 *) Remote buffer overflow in SSL2 protocol - an attacker could
5100 supply an oversized client master key. (CVE-2002-0656)
5101 [Ben Laurie (CHATS)]
5103 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5105 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5106 encoded as NULL) with id-dsa-with-sha1.
5107 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5109 *) Check various X509_...() return values in apps/req.c.
5110 [Nils Larsch <nla@trustcenter.de>]
5112 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5113 an end-of-file condition would erronously be flagged, when the CRLF
5114 was just at the end of a processed block. The bug was discovered when
5115 processing data through a buffering memory BIO handing the data to a
5116 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5117 <ptsekov@syntrex.com> and Nedelcho Stanev.
5120 *) Implement a countermeasure against a vulnerability recently found
5121 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5122 before application data chunks to avoid the use of known IVs
5123 with data potentially chosen by the attacker.
5126 *) Fix length checks in ssl3_get_client_hello().
5129 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5130 to prevent ssl3_read_internal() from incorrectly assuming that
5131 ssl3_read_bytes() found application data while handshake
5132 processing was enabled when in fact s->s3->in_read_app_data was
5133 merely automatically cleared during the initial handshake.
5134 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5136 *) Fix object definitions for Private and Enterprise: they were not
5137 recognized in their shortname (=lowercase) representation. Extend
5138 obj_dat.pl to issue an error when using undefined keywords instead
5139 of silently ignoring the problem (Svenning Sorensen
5140 <sss@sss.dnsalias.net>).
5143 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5144 generators, i.e. generators other than 2 and 5. (Previously, the
5145 code did not properly initialise the 'add' and 'rem' values to
5146 BN_generate_prime().)
5148 In the new general case, we do not insist that 'generator' is
5149 actually a primitive root: This requirement is rather pointless;
5150 a generator of the order-q subgroup is just as good, if not
5154 *) Map new X509 verification errors to alerts. Discovered and submitted by
5155 Tom Wu <tom@arcot.com>.
5158 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5159 returning non-zero before the data has been completely received
5160 when using non-blocking I/O.
5161 [Bodo Moeller; problem pointed out by John Hughes]
5163 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5164 [Ben Laurie, Lutz Jaenicke]
5166 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5167 Yoram Zahavi <YoramZ@gilian.com>).
5170 *) Add information about CygWin 1.3 and on, and preserve proper
5171 configuration for the versions before that.
5172 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5174 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5175 check whether we deal with a copy of a session and do not delete from
5176 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5177 <izhar@checkpoint.com>.
5180 *) Do not store session data into the internal session cache, if it
5181 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5182 flag is set). Proposed by Aslam <aslam@funk.com>.
5185 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5189 *) [In 0.9.6d-engine release:]
5190 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5191 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5193 *) Add the configuration target linux-s390x.
5194 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5196 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5197 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5198 variable as an indication that a ClientHello message has been
5199 received. As the flag value will be lost between multiple
5200 invocations of ssl3_accept when using non-blocking I/O, the
5201 function may not be aware that a handshake has actually taken
5202 place, thus preventing a new session from being added to the
5205 To avoid this problem, we now set s->new_session to 2 instead of
5206 using a local variable.
5207 [Lutz Jaenicke, Bodo Moeller]
5209 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5210 if the SSL_R_LENGTH_MISMATCH error is detected.
5211 [Geoff Thorpe, Bodo Moeller]
5213 *) New 'shared_ldflag' column in Configure platform table.
5216 *) Fix EVP_CIPHER_mode macro.
5217 ["Dan S. Camper" <dan@bti.net>]
5219 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5220 type, we must throw them away by setting rr->length to 0.
5221 [D P Chang <dpc@qualys.com>]
5223 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5225 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5226 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5227 worked incorrectly for those cases where range = 10..._2 and
5228 3*range is two bits longer than range.)
5231 *) Only add signing time to PKCS7 structures if it is not already
5235 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5236 OBJ_ld_ce should be OBJ_id_ce.
5237 Also some ip-pda OIDs in crypto/objects/objects.txt were
5238 incorrect (cf. RFC 3039).
5239 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5241 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5242 returns early because it has nothing to do.
5243 [Andy Schneider <andy.schneider@bjss.co.uk>]
5245 *) [In 0.9.6c-engine release:]
5246 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5247 [Andy Schneider <andy.schneider@bjss.co.uk>]
5249 *) [In 0.9.6c-engine release:]
5250 Add support for Cryptographic Appliance's keyserver technology.
5251 (Use engine 'keyclient')
5252 [Cryptographic Appliances and Geoff Thorpe]
5254 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5255 is called via tools/c89.sh because arguments have to be
5256 rearranged (all '-L' options must appear before the first object
5258 [Richard Shapiro <rshapiro@abinitio.com>]
5260 *) [In 0.9.6c-engine release:]
5261 Add support for Broadcom crypto accelerator cards, backported
5263 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5265 *) [In 0.9.6c-engine release:]
5266 Add support for SureWare crypto accelerator cards from
5267 Baltimore Technologies. (Use engine 'sureware')
5268 [Baltimore Technologies and Mark Cox]
5270 *) [In 0.9.6c-engine release:]
5271 Add support for crypto accelerator cards from Accelerated
5272 Encryption Processing, www.aep.ie. (Use engine 'aep')
5273 [AEP Inc. and Mark Cox]
5275 *) Add a configuration entry for gcc on UnixWare.
5276 [Gary Benson <gbenson@redhat.com>]
5278 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5279 messages are stored in a single piece (fixed-length part and
5280 variable-length part combined) and fix various bugs found on the way.
5283 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5284 instead. BIO_gethostbyname() does not know what timeouts are
5285 appropriate, so entries would stay in cache even when they have
5287 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5289 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5290 faced with a pathologically small ClientHello fragment that does
5291 not contain client_version: Instead of aborting with an error,
5292 simply choose the highest available protocol version (i.e.,
5293 TLS 1.0 unless it is disabled). In practice, ClientHello
5294 messages are never sent like this, but this change gives us
5295 strictly correct behaviour at least for TLS.
5298 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5299 never resets s->method to s->ctx->method when called from within
5300 one of the SSL handshake functions.
5301 [Bodo Moeller; problem pointed out by Niko Baric]
5303 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5304 (sent using the client's version number) if client_version is
5305 smaller than the protocol version in use. Also change
5306 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5307 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5308 the client will at least see that alert.
5311 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5315 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5316 client receives HelloRequest while in a handshake.
5317 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5319 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5320 should end in 'break', not 'goto end' which circuments various
5321 cleanups done in state SSL_ST_OK. But session related stuff
5322 must be disabled for SSL_ST_OK in the case that we just sent a
5325 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5326 before just sending a HelloRequest.
5327 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5329 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5330 reveal whether illegal block cipher padding was found or a MAC
5331 verification error occured. (Neither SSLerr() codes nor alerts
5332 are directly visible to potential attackers, but the information
5333 may leak via logfiles.)
5335 Similar changes are not required for the SSL 2.0 implementation
5336 because the number of padding bytes is sent in clear for SSL 2.0,
5337 and the extra bytes are just ignored. However ssl/s2_pkt.c
5338 failed to verify that the purported number of padding bytes is in
5342 *) Add OpenUNIX-8 support including shared libraries
5343 (Boyd Lynn Gerber <gerberb@zenez.com>).
5346 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5347 'wristwatch attack' using huge encoding parameters (cf.
5348 James H. Manger's CRYPTO 2001 paper). Note that the
5349 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5350 encoding parameters and hence was not vulnerable.
5353 *) BN_sqr() bug fix.
5354 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5356 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5357 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5358 followed by modular reduction.
5359 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5361 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5362 equivalent based on BN_pseudo_rand() instead of BN_rand().
5365 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5366 This function was broken, as the check for a new client hello message
5367 to handle SGC did not allow these large messages.
5368 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5371 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5374 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5375 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5378 *) Rework the configuration and shared library support for Tru64 Unix.
5379 The configuration part makes use of modern compiler features and
5380 still retains old compiler behavior for those that run older versions
5381 of the OS. The shared library support part includes a variant that
5382 uses the RPATH feature, and is available through the special
5383 configuration target "alpha-cc-rpath", which will never be selected
5385 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5387 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5388 with the same message size as in ssl3_get_certificate_request().
5389 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5390 messages might inadvertently be reject as too long.
5391 [Petr Lampa <lampa@fee.vutbr.cz>]
5393 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5396 *) Modified SSL library such that the verify_callback that has been set
5397 specificly for an SSL object with SSL_set_verify() is actually being
5398 used. Before the change, a verify_callback set with this function was
5399 ignored and the verify_callback() set in the SSL_CTX at the time of
5400 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5401 to allow the necessary settings.
5404 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5405 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5406 done automatically (in contradiction to the requirements of the C
5407 standard). This made problems when used from OpenSSH.
5410 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5411 dh->length and always used
5413 BN_rand_range(priv_key, dh->p).
5415 BN_rand_range() is not necessary for Diffie-Hellman, and this
5416 specific range makes Diffie-Hellman unnecessarily inefficient if
5417 dh->length (recommended exponent length) is much smaller than the
5418 length of dh->p. We could use BN_rand_range() if the order of
5419 the subgroup was stored in the DH structure, but we only have
5424 BN_rand(priv_key, l, ...)
5426 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5432 RSA_eay_public_encrypt
5433 RSA_eay_private_decrypt
5434 RSA_eay_private_encrypt (signing)
5435 RSA_eay_public_decrypt (signature verification)
5437 (default implementations for RSA_public_encrypt,
5438 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5439 always reject numbers >= n.
5442 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5443 to synchronize access to 'locking_thread'. This is necessary on
5444 systems where access to 'locking_thread' (an 'unsigned long'
5445 variable) is not atomic.
5448 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5449 *before* setting the 'crypto_lock_rand' flag. The previous code had
5450 a race condition if 0 is a valid thread ID.
5451 [Travis Vitek <vitek@roguewave.com>]
5453 *) Add support for shared libraries under Irix.
5454 [Albert Chin-A-Young <china@thewrittenword.com>]
5456 *) Add configuration option to build on Linux on both big-endian and
5458 [Ralf Baechle <ralf@uni-koblenz.de>]
5460 *) Add the possibility to create shared libraries on HP-UX.
5463 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5465 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5466 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5467 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5468 PRNG state recovery was possible based on the output of
5469 one PRNG request appropriately sized to gain knowledge on
5470 'md' followed by enough consecutive 1-byte PRNG requests
5471 to traverse all of 'state'.
5473 1. When updating 'md_local' (the current thread's copy of 'md')
5474 during PRNG output generation, hash all of the previous
5475 'md_local' value, not just the half used for PRNG output.
5477 2. Make the number of bytes from 'state' included into the hash
5478 independent from the number of PRNG bytes requested.
5480 The first measure alone would be sufficient to avoid
5481 Markku-Juhani's attack. (Actually it had never occurred
5482 to me that the half of 'md_local' used for chaining was the
5483 half from which PRNG output bytes were taken -- I had always
5484 assumed that the secret half would be used.) The second
5485 measure makes sure that additional data from 'state' is never
5486 mixed into 'md_local' in small portions; this heuristically
5487 further strengthens the PRNG.
5490 *) Fix crypto/bn/asm/mips3.s.
5493 *) When only the key is given to "enc", the IV is undefined. Print out
5494 an error message in this case.
5497 *) Handle special case when X509_NAME is empty in X509 printing routines.
5500 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5501 positive and less than q.
5504 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5505 used: it isn't thread safe and the add_lock_callback should handle
5507 [Paul Rose <Paul.Rose@bridge.com>]
5509 *) Verify that incoming data obeys the block size in
5510 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5514 [Ulf Möller, Bodo Möller]
5516 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5517 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5518 when fixing the server behaviour for backwards-compatible 'client
5519 hello' messages. (Note that the attack is impractical against
5520 SSL 3.0 and TLS 1.0 anyway because length and version checking
5521 means that the probability of guessing a valid ciphertext is
5522 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5525 Before 0.9.5, the countermeasure (hide the error by generating a
5526 random 'decryption result') did not work properly because
5527 ERR_clear_error() was missing, meaning that SSL_get_error() would
5528 detect the supposedly ignored error.
5530 Both problems are now fixed.
5533 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5534 (previously it was 1024).
5537 *) Fix for compatibility mode trust settings: ignore trust settings
5538 unless some valid trust or reject settings are present.
5541 *) Fix for blowfish EVP: its a variable length cipher.
5544 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5545 parameters in DSA public key structures and return an error in the
5546 DSA routines if parameters are absent.
5549 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5550 in the current directory if neither $RANDFILE nor $HOME was set.
5551 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5552 caused some confusion to Windows users who haven't defined $HOME.
5553 Thus RAND_file_name() is changed again: e_os.h can define a
5554 DEFAULT_HOME, which will be used if $HOME is not set.
5555 For Windows, we use "C:"; on other platforms, we still require
5556 environment variables.
5558 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5559 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5560 having multiple threads call RAND_poll() concurrently.
5563 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5564 combination of a flag and a thread ID variable.
5565 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5566 flag), *other* threads can enter ssleay_add_bytes without obeying
5567 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5568 that they do not hold after the first thread unsets add_do_not_lock).
5571 *) Change bctest again: '-x' expressions are not available in all
5575 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5577 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5578 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5580 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5581 the default extension for executables, if any. Also, make the perl
5582 scripts that use symlink() to test if it really exists and use "cp"
5583 if it doesn't. All this made OpenSSL compilable and installable in
5587 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5588 If SEQUENCE is length is indefinite just set c->slen to the total
5589 amount of data available.
5590 [Steve Henson, reported by shige@FreeBSD.org]
5591 [This change does not apply to 0.9.7.]
5593 *) Change bctest to avoid here-documents inside command substitution
5594 (workaround for FreeBSD /bin/sh bug).
5595 For compatibility with Ultrix, avoid shell functions (introduced
5596 in the bctest version that searches along $PATH).
5599 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5600 with des_encrypt() defined on some operating systems, like Solaris
5604 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5605 On the Importance of Eliminating Errors in Cryptographic
5606 Computations, J. Cryptology 14 (2001) 2, 101-119,
5607 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5610 *) MIPS assembler BIGNUM division bug fix.
5613 *) Disabled incorrect Alpha assembler code.
5616 *) Fix PKCS#7 decode routines so they correctly update the length
5617 after reading an EOC for the EXPLICIT tag.
5619 [This change does not apply to 0.9.7.]
5621 *) Fix bug in PKCS#12 key generation routines. This was triggered
5622 if a 3DES key was generated with a 0 initial byte. Include
5623 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5624 (but broken) behaviour.
5627 *) Enhance bctest to search for a working bc along $PATH and print
5629 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5631 *) Fix memory leaks in err.c: free err_data string if necessary;
5632 don't write to the wrong index in ERR_set_error_data.
5635 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5639 *) Replace rdtsc with _emit statements for VC++ version 5.
5640 [Jeremy Cooper <jeremy@baymoo.org>]
5642 *) Make it possible to reuse SSLv2 sessions.
5645 *) In copy_email() check for >= 0 as a return value for
5646 X509_NAME_get_index_by_NID() since 0 is a valid index.
5647 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5649 *) Avoid coredump with unsupported or invalid public keys by checking if
5650 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5651 PKCS7_verify() fails with non detached data.
5654 *) Don't use getenv in library functions when run as setuid/setgid.
5655 New function OPENSSL_issetugid().
5658 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5659 due to incorrect handling of multi-threading:
5661 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5663 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5665 3. Count how many times MemCheck_off() has been called so that
5666 nested use can be treated correctly. This also avoids
5667 inband-signalling in the previous code (which relied on the
5668 assumption that thread ID 0 is impossible).
5671 *) Add "-rand" option also to s_client and s_server.
5674 *) Fix CPU detection on Irix 6.x.
5675 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5676 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5678 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5681 [This change does not apply to 0.9.7.]
5683 *) Use the cached encoding of an X509_NAME structure rather than
5684 copying it. This is apparently the reason for the libsafe "errors"
5685 but the code is actually correct.
5688 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5689 Bleichenbacher's DSA attack.
5690 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5691 to be set and top=0 forces the highest bit to be set; top=-1 is new
5692 and leaves the highest bit random.
5693 [Ulf Moeller, Bodo Moeller]
5695 *) In the NCONF_...-based implementations for CONF_... queries
5696 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5697 a temporary CONF structure with the data component set to NULL
5698 (which gives segmentation faults in lh_retrieve).
5699 Instead, use NULL for the CONF pointer in CONF_get_string and
5700 CONF_get_number (which may use environment variables) and directly
5701 return NULL from CONF_get_section.
5704 *) Fix potential buffer overrun for EBCDIC.
5707 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5708 keyUsage if basicConstraints absent for a CA.
5711 *) Make SMIME_write_PKCS7() write mail header values with a format that
5712 is more generally accepted (no spaces before the semicolon), since
5713 some programs can't parse those values properly otherwise. Also make
5714 sure BIO's that break lines after each write do not create invalid
5718 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5719 macros previously used would not encode an empty SEQUENCE OF
5720 and break the signature.
5722 [This change does not apply to 0.9.7.]
5724 *) Zero the premaster secret after deriving the master secret in
5728 *) Add some EVP_add_digest_alias registrations (as found in
5729 OpenSSL_add_all_digests()) to SSL_library_init()
5730 aka OpenSSL_add_ssl_algorithms(). This provides improved
5731 compatibility with peers using X.509 certificates
5732 with unconventional AlgorithmIdentifier OIDs.
5735 *) Fix for Irix with NO_ASM.
5736 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5738 *) ./config script fixes.
5739 [Ulf Moeller, Richard Levitte]
5741 *) Fix 'openssl passwd -1'.
5744 *) Change PKCS12_key_gen_asc() so it can cope with non null
5745 terminated strings whose length is passed in the passlen
5746 parameter, for example from PEM callbacks. This was done
5747 by adding an extra length parameter to asc2uni().
5748 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5750 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5751 call failed, free the DSA structure.
5754 *) Fix to uni2asc() to cope with zero length Unicode strings.
5755 These are present in some PKCS#12 files.
5758 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5759 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5760 when writing a 32767 byte record.
5761 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5763 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5764 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5766 (RSA objects have a reference count access to which is protected
5767 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5768 so they are meant to be shared between threads.)
5769 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5770 "Reddie, Steven" <Steven.Reddie@ca.com>]
5772 *) Fix a deadlock in CRYPTO_mem_leaks().
5775 *) Use better test patterns in bntest.
5778 *) rand_win.c fix for Borland C.
5781 *) BN_rshift bugfix for n == 0.
5784 *) Add a 'bctest' script that checks for some known 'bc' bugs
5785 so that 'make test' does not abort just because 'bc' is broken.
5788 *) Store verify_result within SSL_SESSION also for client side to
5789 avoid potential security hole. (Re-used sessions on the client side
5790 always resulted in verify_result==X509_V_OK, not using the original
5791 result of the server certificate verification.)
5794 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5795 SSL3_RT_APPLICATION_DATA, return 0.
5796 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5800 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5801 releases, have been re-implemented by renaming the previous
5802 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5803 and ssl3_read_internal, respectively, and adding 'peek' parameters
5804 to them. The new ssl[23]_{read,peek} functions are calls to
5805 ssl[23]_read_internal with the 'peek' flag set appropriately.
5806 A 'peek' parameter has also been added to ssl3_read_bytes, which
5807 does the actual work for ssl3_read_internal.
5810 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5811 the method-specific "init()" handler. Also clean up ex_data after
5812 calling the method-specific "finish()" handler. Previously, this was
5813 happening the other way round.
5816 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5817 The previous value, 12, was not always sufficient for BN_mod_exp().
5820 *) Make sure that shared libraries get the internal name engine with
5821 the full version number and not just 0. This should mark the
5822 shared libraries as not backward compatible. Of course, this should
5823 be changed again when we can guarantee backward binary compatibility.
5826 *) Fix typo in get_cert_by_subject() in by_dir.c
5827 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5829 *) Rework the system to generate shared libraries:
5831 - Make note of the expected extension for the shared libraries and
5832 if there is a need for symbolic links from for example libcrypto.so.0
5833 to libcrypto.so.0.9.7. There is extended info in Configure for
5836 - Make as few rebuilds of the shared libraries as possible.
5838 - Still avoid linking the OpenSSL programs with the shared libraries.
5840 - When installing, install the shared libraries separately from the
5844 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5846 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5847 and not in SSL_clear because the latter is also used by the
5848 accept/connect functions; previously, the settings made by
5849 SSL_set_read_ahead would be lost during the handshake.
5850 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5852 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5853 Previously, it would create entries for disableed algorithms no
5857 *) Added several new manual pages for SSL_* function.
5860 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5862 *) In ssl23_get_client_hello, generate an error message when faced
5863 with an initial SSL 3.0/TLS record that is too small to contain the
5864 first two bytes of the ClientHello message, i.e. client_version.
5865 (Note that this is a pathologic case that probably has never happened
5866 in real life.) The previous approach was to use the version number
5867 from the record header as a substitute; but our protocol choice
5868 should not depend on that one because it is not authenticated
5869 by the Finished messages.
5872 *) More robust randomness gathering functions for Windows.
5873 [Jeffrey Altman <jaltman@columbia.edu>]
5875 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5876 not set then we don't setup the error code for issuer check errors
5877 to avoid possibly overwriting other errors which the callback does
5878 handle. If an application does set the flag then we assume it knows
5879 what it is doing and can handle the new informational codes
5883 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5884 a general "ANY" type, as such it should be able to decode anything
5885 including tagged types. However it didn't check the class so it would
5886 wrongly interpret tagged types in the same way as their universal
5887 counterpart and unknown types were just rejected. Changed so that the
5888 tagged and unknown types are handled in the same way as a SEQUENCE:
5889 that is the encoding is stored intact. There is also a new type
5890 "V_ASN1_OTHER" which is used when the class is not universal, in this
5891 case we have no idea what the actual type is so we just lump them all
5895 *) On VMS, stdout may very well lead to a file that is written to
5896 in a record-oriented fashion. That means that every write() will
5897 write a separate record, which will be read separately by the
5898 programs trying to read from it. This can be very confusing.
5900 The solution is to put a BIO filter in the way that will buffer
5901 text until a linefeed is reached, and then write everything a
5902 line at a time, so every record written will be an actual line,
5903 not chunks of lines and not (usually doesn't happen, but I've
5904 seen it once) several lines in one record. BIO_f_linebuffer() is
5907 Currently, it's a VMS-only method, because that's where it has
5908 been tested well enough.
5911 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5912 it can return incorrect results.
5913 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5914 but it was in 0.9.6-beta[12].)
5917 *) Disable the check for content being present when verifying detached
5918 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5919 include zero length content when signing messages.
5922 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5923 BIO_ctrl (for BIO pairs).
5926 *) Add DSO method for VMS.
5929 *) Bug fix: Montgomery multiplication could produce results with the
5933 *) Add RPM specification openssl.spec and modify it to build three
5934 packages. The default package contains applications, application
5935 documentation and run-time libraries. The devel package contains
5936 include files, static libraries and function documentation. The
5937 doc package contains the contents of the doc directory. The original
5938 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5941 *) Add a large number of documentation files for many SSL routines.
5942 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5944 *) Add a configuration entry for Sony News 4.
5945 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5947 *) Don't set the two most significant bits to one when generating a
5948 random number < q in the DSA library.
5951 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5952 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5953 the underlying transport is blocking) if a handshake took place.
5954 (The default behaviour is needed by applications such as s_client
5955 and s_server that use select() to determine when to use SSL_read;
5956 but for applications that know in advance when to expect data, it
5957 just makes things more complicated.)
5960 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5964 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5965 work better on such systems.
5966 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5968 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5969 Update PKCS12_parse() so it copies the friendlyName and the
5970 keyid to the certificates aux info.
5973 *) Fix bug in PKCS7_verify() which caused an infinite loop
5974 if there was more than one signature.
5975 [Sven Uszpelkat <su@celocom.de>]
5977 *) Major change in util/mkdef.pl to include extra information
5978 about each symbol, as well as presentig variables as well
5979 as functions. This change means that there's n more need
5980 to rebuild the .num files when some algorithms are excluded.
5983 *) Allow the verify time to be set by an application,
5984 rather than always using the current time.
5987 *) Phase 2 verify code reorganisation. The certificate
5988 verify code now looks up an issuer certificate by a
5989 number of criteria: subject name, authority key id
5990 and key usage. It also verifies self signed certificates
5991 by the same criteria. The main comparison function is
5992 X509_check_issued() which performs these checks.
5994 Lot of changes were necessary in order to support this
5995 without completely rewriting the lookup code.
5997 Authority and subject key identifier are now cached.
5999 The LHASH 'certs' is X509_STORE has now been replaced
6000 by a STACK_OF(X509_OBJECT). This is mainly because an
6001 LHASH can't store or retrieve multiple objects with
6002 the same hash value.
6004 As a result various functions (which were all internal
6005 use only) have changed to handle the new X509_STORE
6006 structure. This will break anything that messed round
6007 with X509_STORE internally.
6009 The functions X509_STORE_add_cert() now checks for an
6010 exact match, rather than just subject name.
6012 The X509_STORE API doesn't directly support the retrieval
6013 of multiple certificates matching a given criteria, however
6014 this can be worked round by performing a lookup first
6015 (which will fill the cache with candidate certificates)
6016 and then examining the cache for matches. This is probably
6017 the best we can do without throwing out X509_LOOKUP
6018 entirely (maybe later...).
6020 The X509_VERIFY_CTX structure has been enhanced considerably.
6022 All certificate lookup operations now go via a get_issuer()
6023 callback. Although this currently uses an X509_STORE it
6024 can be replaced by custom lookups. This is a simple way
6025 to bypass the X509_STORE hackery necessary to make this
6026 work and makes it possible to use more efficient techniques
6027 in future. A very simple version which uses a simple
6028 STACK for its trusted certificate store is also provided
6029 using X509_STORE_CTX_trusted_stack().
6031 The verify_cb() and verify() callbacks now have equivalents
6032 in the X509_STORE_CTX structure.
6034 X509_STORE_CTX also has a 'flags' field which can be used
6035 to customise the verify behaviour.
6038 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6039 excludes S/MIME capabilities.
6042 *) When a certificate request is read in keep a copy of the
6043 original encoding of the signed data and use it when outputing
6044 again. Signatures then use the original encoding rather than
6045 a decoded, encoded version which may cause problems if the
6046 request is improperly encoded.
6049 *) For consistency with other BIO_puts implementations, call
6050 buffer_write(b, ...) directly in buffer_puts instead of calling
6053 In BIO_puts, increment b->num_write as in BIO_write.
6054 [Peter.Sylvester@EdelWeb.fr]
6056 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6057 BN_zero, we may not return a BIGNUM with an array consisting of
6061 *) Avoid calling abort() from within the library when problems are
6062 detected, except if preprocessor symbols have been defined
6063 (such as REF_CHECK, BN_DEBUG etc.).
6066 *) New openssl application 'rsautl'. This utility can be
6067 used for low level RSA operations. DER public key
6068 BIO/fp routines also added.
6071 *) New Configure entry and patches for compiling on QNX 4.
6072 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6074 *) A demo state-machine implementation was sponsored by
6075 Nuron (http://www.nuron.com/) and is now available in
6076 demos/state_machine.
6079 *) New options added to the 'dgst' utility for signature
6080 generation and verification.
6083 *) Unrecognized PKCS#7 content types are now handled via a
6084 catch all ASN1_TYPE structure. This allows unsupported
6085 types to be stored as a "blob" and an application can
6086 encode and decode it manually.
6089 *) Fix various signed/unsigned issues to make a_strex.c
6091 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6093 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6094 length if passed a buffer. ASN1_INTEGER_to_BN failed
6095 if passed a NULL BN and its argument was negative.
6096 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6098 *) Modification to PKCS#7 encoding routines to output definite
6099 length encoding. Since currently the whole structures are in
6100 memory there's not real point in using indefinite length
6101 constructed encoding. However if OpenSSL is compiled with
6102 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6105 *) Added BIO_vprintf() and BIO_vsnprintf().
6108 *) Added more prefixes to parse for in the the strings written
6109 through a logging bio, to cover all the levels that are available
6110 through syslog. The prefixes are now:
6112 PANIC, EMERG, EMR => LOG_EMERG
6113 ALERT, ALR => LOG_ALERT
6114 CRIT, CRI => LOG_CRIT
6115 ERROR, ERR => LOG_ERR
6116 WARNING, WARN, WAR => LOG_WARNING
6117 NOTICE, NOTE, NOT => LOG_NOTICE
6118 INFO, INF => LOG_INFO
6119 DEBUG, DBG => LOG_DEBUG
6121 and as before, if none of those prefixes are present at the
6122 beginning of the string, LOG_ERR is chosen.
6124 On Win32, the LOG_* levels are mapped according to this:
6126 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6127 LOG_WARNING => EVENTLOG_WARNING_TYPE
6128 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6132 *) Made it possible to reconfigure with just the configuration
6133 argument "reconf" or "reconfigure". The command line arguments
6134 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6135 and are retrieved from there when reconfiguring.
6139 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6141 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6144 *) The obj_dat.pl script was messing up the sorting of object
6145 names. The reason was that it compared the quoted version
6146 of strings as a result "OCSP" > "OCSP Signing" because
6147 " > SPACE. Changed script to store unquoted versions of
6148 names and add quotes on output. It was also omitting some
6149 names from the lookup table if they were given a default
6150 value (that is if SN is missing it is given the same
6151 value as LN and vice versa), these are now added on the
6152 grounds that if an object has a name we should be able to
6153 look it up. Finally added warning output when duplicate
6154 short or long names are found.
6157 *) Changes needed for Tandem NSK.
6158 [Scott Uroff <scott@xypro.com>]
6160 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6161 RSA_padding_check_SSLv23(), special padding was never detected
6162 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6163 version rollback attacks was not effective.
6165 In s23_clnt.c, don't use special rollback-attack detection padding
6166 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6167 client; similarly, in s23_srvr.c, don't do the rollback check if
6168 SSL 2.0 is the only protocol enabled in the server.
6171 *) Make it possible to get hexdumps of unprintable data with 'openssl
6172 asn1parse'. By implication, the functions ASN1_parse_dump() and
6173 BIO_dump_indent() are added.
6176 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6177 these print out strings and name structures based on various
6178 flags including RFC2253 support and proper handling of
6179 multibyte characters. Added options to the 'x509' utility
6180 to allow the various flags to be set.
6183 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6184 Also change the functions X509_cmp_current_time() and
6185 X509_gmtime_adj() work with an ASN1_TIME structure,
6186 this will enable certificates using GeneralizedTime in validity
6187 dates to be checked.
6190 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6191 negative public key encodings) on by default,
6192 NO_NEG_PUBKEY_BUG can be set to disable it.
6195 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6196 content octets. An i2c_ASN1_OBJECT is unnecessary because
6197 the encoding can be trivially obtained from the structure.
6200 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6201 not read locks (CRYPTO_r_[un]lock).
6204 *) A first attempt at creating official support for shared
6205 libraries through configuration. I've kept it so the
6206 default is static libraries only, and the OpenSSL programs
6207 are always statically linked for now, but there are
6208 preparations for dynamic linking in place.
6209 This has been tested on Linux and Tru64.
6212 *) Randomness polling function for Win9x, as described in:
6213 Peter Gutmann, Software Generation of Practically Strong
6217 *) Fix so PRNG is seeded in req if using an already existing
6221 *) New options to smime application. -inform and -outform
6222 allow alternative formats for the S/MIME message including
6223 PEM and DER. The -content option allows the content to be
6224 specified separately. This should allow things like Netscape
6225 form signing output easier to verify.
6228 *) Fix the ASN1 encoding of tags using the 'long form'.
6231 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6232 STRING types. These convert content octets to and from the
6233 underlying type. The actual tag and length octets are
6234 already assumed to have been read in and checked. These
6235 are needed because all other string types have virtually
6236 identical handling apart from the tag. By having versions
6237 of the ASN1 functions that just operate on content octets
6238 IMPLICIT tagging can be handled properly. It also allows
6239 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6240 and ASN1_INTEGER are identical apart from the tag.
6243 *) Change the handling of OID objects as follows:
6245 - New object identifiers are inserted in objects.txt, following
6246 the syntax given in objects.README.
6247 - objects.pl is used to process obj_mac.num and create a new
6249 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6252 This is currently kind of a hack, and the perl code in objects.pl
6253 isn't very elegant, but it works as I intended. The simplest way
6254 to check that it worked correctly is to look in obj_dat.h and
6255 check the array nid_objs and make sure the objects haven't moved
6256 around (this is important!). Additions are OK, as well as
6257 consistent name changes.
6260 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6263 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6264 The given file adds to whatever has already been seeded into the
6265 random pool through the RANDFILE configuration file option or
6266 environment variable, or the default random state file.
6269 *) mkstack.pl now sorts each macro group into lexical order.
6270 Previously the output order depended on the order the files
6271 appeared in the directory, resulting in needless rewriting
6275 *) Patches to make OpenSSL compile under Win32 again. Mostly
6276 work arounds for the VC++ problem that it treats func() as
6277 func(void). Also stripped out the parts of mkdef.pl that
6278 added extra typesafe functions: these no longer exist.
6281 *) Reorganisation of the stack code. The macros are now all
6282 collected in safestack.h . Each macro is defined in terms of
6283 a "stack macro" of the form SKM_<name>(type, a, b). The
6284 DEBUG_SAFESTACK is now handled in terms of function casts,
6285 this has the advantage of retaining type safety without the
6286 use of additional functions. If DEBUG_SAFESTACK is not defined
6287 then the non typesafe macros are used instead. Also modified the
6288 mkstack.pl script to handle the new form. Needs testing to see
6289 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6290 the default if no major problems. Similar behaviour for ASN1_SET_OF
6291 and PKCS12_STACK_OF.
6294 *) When some versions of IIS use the 'NET' form of private key the
6295 key derivation algorithm is different. Normally MD5(password) is
6296 used as a 128 bit RC4 key. In the modified case
6297 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6298 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6299 as the old Netscape_RSA functions except they have an additional
6300 'sgckey' parameter which uses the modified algorithm. Also added
6301 an -sgckey command line option to the rsa utility. Thanks to
6302 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6303 algorithm to openssl-dev.
6306 *) The evp_local.h macros were using 'c.##kname' which resulted in
6307 invalid expansion on some systems (SCO 5.0.5 for example).
6308 Corrected to 'c.kname'.
6309 [Phillip Porch <root@theporch.com>]
6311 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6312 a STACK of email addresses from a certificate or request, these look
6313 in the subject name and the subject alternative name extensions and
6314 omit any duplicate addresses.
6317 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6318 This makes DSA verification about 2 % faster.
6321 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6322 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6323 plus overhead for 1024 bit moduli).
6324 This makes exponentiations about 0.5 % faster for 1024 bit
6325 exponents (as measured by "openssl speed rsa2048").
6328 *) Rename memory handling macros to avoid conflicts with other
6330 Malloc => OPENSSL_malloc
6331 Malloc_locked => OPENSSL_malloc_locked
6332 Realloc => OPENSSL_realloc
6333 Free => OPENSSL_free
6336 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6337 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6340 *) CygWin32 support.
6341 [John Jarvie <jjarvie@newsguy.com>]
6343 *) The type-safe stack code has been rejigged. It is now only compiled
6344 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6345 by default all type-specific stack functions are "#define"d back to
6346 standard stack functions. This results in more streamlined output
6347 but retains the type-safety checking possibilities of the original
6351 *) The STACK code has been cleaned up, and certain type declarations
6352 that didn't make a lot of sense have been brought in line. This has
6353 also involved a cleanup of sorts in safestack.h to more correctly
6354 map type-safe stack functions onto their plain stack counterparts.
6355 This work has also resulted in a variety of "const"ifications of
6356 lots of the code, especially "_cmp" operations which should normally
6357 be prototyped with "const" parameters anyway.
6360 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6361 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6362 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6363 where all of 'md' is used each time the PRNG is used, but 'state'
6364 is used only indexed by a cyclic counter. As entropy may not be
6365 well distributed from the beginning, 'md' is important as a
6366 chaining variable. However, the output function chains only half
6367 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6368 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6369 in all of 'state' being rewritten, with the new values depending
6370 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6373 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6374 the handshake is continued after ssl_verify_cert_chain();
6375 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6376 can lead to 'unexplainable' connection aborts later.
6377 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6379 *) Major EVP API cipher revision.
6380 Add hooks for extra EVP features. This allows various cipher
6381 parameters to be set in the EVP interface. Support added for variable
6382 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6383 setting of RC2 and RC5 parameters.
6385 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6388 Remove lots of duplicated code from the EVP library. For example *every*
6389 cipher init() function handles the 'iv' in the same way according to the
6390 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6391 for CFB and OFB modes they zero ctx->num.
6393 New functionality allows removal of S/MIME code RC2 hack.
6395 Most of the routines have the same form and so can be declared in terms
6398 By shifting this to the top level EVP_CipherInit() it can be removed from
6399 all individual ciphers. If the cipher wants to handle IVs or keys
6400 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6403 Change lots of functions like EVP_EncryptUpdate() to now return a
6404 value: although software versions of the algorithms cannot fail
6405 any installed hardware versions can.
6408 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6409 this option is set, tolerate broken clients that send the negotiated
6410 protocol version number instead of the requested protocol version
6414 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6415 i.e. non-zero for export ciphersuites, zero otherwise.
6416 Previous versions had this flag inverted, inconsistent with
6417 rsa_tmp_cb (..._TMP_RSA_CB).
6418 [Bodo Moeller; problem reported by Amit Chopra]
6420 *) Add missing DSA library text string. Work around for some IIS
6421 key files with invalid SEQUENCE encoding.
6424 *) Add a document (doc/standards.txt) that list all kinds of standards
6425 and so on that are implemented in OpenSSL.
6428 *) Enhance c_rehash script. Old version would mishandle certificates
6429 with the same subject name hash and wouldn't handle CRLs at all.
6430 Added -fingerprint option to crl utility, to support new c_rehash
6434 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6437 *) Fix for SSL server purpose checking. Server checking was
6438 rejecting certificates which had extended key usage present
6439 but no ssl client purpose.
6440 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6442 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6443 is a little unclear about how a blank password is handled.
6444 Since the password in encoded as a BMPString with terminating
6445 double NULL a zero length password would end up as just the
6446 double NULL. However no password at all is different and is
6447 handled differently in the PKCS#12 key generation code. NS
6448 treats a blank password as zero length. MSIE treats it as no
6449 password on export: but it will try both on import. We now do
6450 the same: PKCS12_parse() tries zero length and no password if
6451 the password is set to "" or NULL (NULL is now a valid password:
6452 it wasn't before) as does the pkcs12 application.
6455 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6456 perror when PEM_read_bio_X509_REQ fails, the error message must
6457 be obtained from the error queue.
6460 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6461 it in ERR_remove_state if appropriate, and change ERR_get_state
6462 accordingly to avoid race conditions (this is necessary because
6463 thread_hash is no longer constant once set).
6466 *) Bugfix for linux-elf makefile.one.
6469 *) RSA_get_default_method() will now cause a default
6470 RSA_METHOD to be chosen if one doesn't exist already.
6471 Previously this was only set during a call to RSA_new()
6472 or RSA_new_method(NULL) meaning it was possible for
6473 RSA_get_default_method() to return NULL.
6476 *) Added native name translation to the existing DSO code
6477 that will convert (if the flag to do so is set) filenames
6478 that are sufficiently small and have no path information
6479 into a canonical native form. Eg. "blah" converted to
6480 "libblah.so" or "blah.dll" etc.
6483 *) New function ERR_error_string_n(e, buf, len) which is like
6484 ERR_error_string(e, buf), but writes at most 'len' bytes
6485 including the 0 terminator. For ERR_error_string_n, 'buf'
6487 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6489 *) CONF library reworked to become more general. A new CONF
6490 configuration file reader "class" is implemented as well as a
6491 new functions (NCONF_*, for "New CONF") to handle it. The now
6492 old CONF_* functions are still there, but are reimplemented to
6493 work in terms of the new functions. Also, a set of functions
6494 to handle the internal storage of the configuration data is
6495 provided to make it easier to write new configuration file
6496 reader "classes" (I can definitely see something reading a
6497 configuration file in XML format, for example), called _CONF_*,
6498 or "the configuration storage API"...
6500 The new configuration file reading functions are:
6502 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6503 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6505 NCONF_default, NCONF_WIN32
6507 NCONF_dump_fp, NCONF_dump_bio
6509 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6510 NCONF_new creates a new CONF object. This works in the same way
6511 as other interfaces in OpenSSL, like the BIO interface.
6512 NCONF_dump_* dump the internal storage of the configuration file,
6513 which is useful for debugging. All other functions take the same
6514 arguments as the old CONF_* functions wth the exception of the
6515 first that must be a `CONF *' instead of a `LHASH *'.
6517 To make it easer to use the new classes with the old CONF_* functions,
6518 the function CONF_set_default_method is provided.
6521 *) Add '-tls1' option to 'openssl ciphers', which was already
6522 mentioned in the documentation but had not been implemented.
6523 (This option is not yet really useful because even the additional
6524 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6527 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6528 OpenSSL-based applications) load shared libraries and bind to
6529 them in a portable way.
6530 [Geoff Thorpe, with contributions from Richard Levitte]
6532 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6534 *) Make sure _lrotl and _lrotr are only used with MSVC.
6536 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6537 (the default implementation of RAND_status).
6539 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6540 to '-clrext' (= clear extensions), as intended and documented.
6541 [Bodo Moeller; inconsistency pointed out by Michael Attili
6544 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6545 was larger than the MD block size.
6546 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6548 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6549 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6550 using the passed key: if the passed key was a private key the result
6551 of X509_print(), for example, would be to print out all the private key
6555 *) des_quad_cksum() byte order bug fix.
6556 [Ulf Möller, using the problem description in krb4-0.9.7, where
6557 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6559 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6561 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6563 *) For easily testing in shell scripts whether some command
6564 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6565 returns with exit code 0 iff no command of the given name is available.
6566 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6567 the output goes to stdout and nothing is printed to stderr.
6568 Additional arguments are always ignored.
6570 Since for each cipher there is a command of the same name,
6571 the 'no-cipher' compilation switches can be tested this way.
6573 ('openssl no-XXX' is not able to detect pseudo-commands such
6574 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6577 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6580 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6581 is set; it will be thrown away anyway because each handshake creates
6583 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6584 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6585 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6586 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6589 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6590 'Q' and 'R' lose their special meanings (quit/renegotiate).
6591 This is part of what -quiet does; unlike -quiet, -ign_eof
6592 does not suppress any output.
6595 *) Add compatibility options to the purpose and trust code. The
6596 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6597 accepts a certificate or CA, this was the previous behaviour,
6598 with all the associated security issues.
6600 X509_TRUST_COMPAT is the old trust behaviour: only and
6601 automatically trust self signed roots in certificate store. A
6602 new trust setting X509_TRUST_DEFAULT is used to specify that
6603 a purpose has no associated trust setting and it should instead
6604 use the value in the default purpose.
6607 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6608 and fix a memory leak.
6611 *) In util/mkerr.pl (which implements 'make errors'), preserve
6612 reason strings from the previous version of the .c file, as
6613 the default to have only downcase letters (and digits) in
6614 automatically generated reasons codes is not always appropriate.
6617 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6618 using strerror. Previously, ERR_reason_error_string() returned
6619 library names as reason strings for SYSerr; but SYSerr is a special
6620 case where small numbers are errno values, not library numbers.
6623 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6624 converts DSA parameters into DH parameters. (When creating parameters,
6625 DSA_generate_parameters is used.)
6628 *) Include 'length' (recommended exponent length) in C code generated
6629 by 'openssl dhparam -C'.
6632 *) The second argument to set_label in perlasm was already being used
6633 so couldn't be used as a "file scope" flag. Moved to third argument
6637 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6638 instead of RAND_bytes for encryption IVs and salts.
6641 *) Include RAND_status() into RAND_METHOD instead of implementing
6642 it only for md_rand.c Otherwise replacing the PRNG by calling
6643 RAND_set_rand_method would be impossible.
6646 *) Don't let DSA_generate_key() enter an infinite loop if the random
6647 number generation fails.
6650 *) New 'rand' application for creating pseudo-random output.
6653 *) Added configuration support for Linux/IA64
6654 [Rolf Haberrecker <rolf@suse.de>]
6656 *) Assembler module support for Mingw32.
6659 *) Shared library support for HPUX (in shlib/).
6660 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6662 *) Shared library support for Solaris gcc.
6663 [Lutz Behnke <behnke@trustcenter.de>]
6665 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6667 *) PKCS7_encrypt() was adding text MIME headers twice because they
6668 were added manually and by SMIME_crlf_copy().
6671 *) In bntest.c don't call BN_rand with zero bits argument.
6672 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6674 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6675 case was implemented. This caused BN_div_recp() to fail occasionally.
6678 *) Add an optional second argument to the set_label() in the perl
6679 assembly language builder. If this argument exists and is set
6680 to 1 it signals that the assembler should use a symbol whose
6681 scope is the entire file, not just the current function. This
6682 is needed with MASM which uses the format label:: for this scope.
6683 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6685 *) Change the ASN1 types so they are typedefs by default. Before
6686 almost all types were #define'd to ASN1_STRING which was causing
6687 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6691 *) Change names of new functions to the new get1/get0 naming
6692 convention: After 'get1', the caller owns a reference count
6693 and has to call ..._free; 'get0' returns a pointer to some
6694 data structure without incrementing reference counters.
6695 (Some of the existing 'get' functions increment a reference
6696 counter, some don't.)
6697 Similarly, 'set1' and 'add1' functions increase reference
6698 counters or duplicate objects.
6701 *) Allow for the possibility of temp RSA key generation failure:
6702 the code used to assume it always worked and crashed on failure.
6705 *) Fix potential buffer overrun problem in BIO_printf().
6706 [Ulf Möller, using public domain code by Patrick Powell; problem
6707 pointed out by David Sacerdote <das33@cornell.edu>]
6709 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6710 RAND_egd() and RAND_status(). In the command line application,
6711 the EGD socket can be specified like a seed file using RANDFILE
6715 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6716 Some CAs (e.g. Verisign) distribute certificates in this form.
6719 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6720 list to exclude them. This means that no special compilation option
6721 is needed to use anonymous DH: it just needs to be included in the
6725 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6726 EVP_MD_type. The old functionality is available in a new macro called
6727 EVP_MD_md(). Change code that uses it and update docs.
6730 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6731 where the 'void *' argument is replaced by a function pointer argument.
6732 Previously 'void *' was abused to point to functions, which works on
6733 many platforms, but is not correct. As these functions are usually
6734 called by macros defined in OpenSSL header files, most source code
6735 should work without changes.
6738 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6739 sections with information on -D... compiler switches used for
6740 compiling the library so that applications can see them. To enable
6741 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6742 must be defined. E.g.,
6743 #define OPENSSL_ALGORITHM_DEFINES
6744 #include <openssl/opensslconf.h>
6745 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6746 [Richard Levitte, Ulf and Bodo Möller]
6748 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6752 *) Change the 'other' type in certificate aux info to a STACK_OF
6753 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6754 the required ASN1 format: arbitrary types determined by an OID.
6757 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6758 argument to 'req'. This is not because the function is newer or
6759 better than others it just uses the work 'NEW' in the certificate
6760 request header lines. Some software needs this.
6763 *) Reorganise password command line arguments: now passwords can be
6764 obtained from various sources. Delete the PEM_cb function and make
6765 it the default behaviour: i.e. if the callback is NULL and the
6766 usrdata argument is not NULL interpret it as a null terminated pass
6767 phrase. If usrdata and the callback are NULL then the pass phrase
6768 is prompted for as usual.
6771 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6772 the support is automatically enabled. The resulting binaries will
6773 autodetect the card and use it if present.
6774 [Ben Laurie and Compaq Inc.]
6776 *) Work around for Netscape hang bug. This sends certificate request
6777 and server done in one record. Since this is perfectly legal in the
6778 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6779 the bugs/SSLv3 entry for more info.
6782 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6785 *) Add -rand argument to smime and pkcs12 applications and read/write
6789 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6792 *) Add command line password options to the remaining applications.
6795 *) Bug fix for BN_div_recp() for numerators with an even number of
6799 *) More tests in bntest.c, and changed test_bn output.
6802 *) ./config recognizes MacOS X now.
6805 *) Bug fix for BN_div() when the first words of num and divsor are
6806 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6809 *) Add support for various broken PKCS#8 formats, and command line
6810 options to produce them.
6813 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6814 get temporary BIGNUMs from a BN_CTX.
6817 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6821 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6822 include a #define from the old name to the new. The original intent
6823 was that statically linked binaries could for example just call
6824 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6825 link with digests. This never worked becayse SSLeay_add_all_digests()
6826 and SSLeay_add_all_ciphers() were in the same source file so calling
6827 one would link with the other. They are now in separate source files.
6830 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6833 *) Use a less unusual form of the Miller-Rabin primality test (it used
6834 a binary algorithm for exponentiation integrated into the Miller-Rabin
6835 loop, our standard modexp algorithms are faster).
6838 *) Support for the EBCDIC character set completed.
6839 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6841 *) Source code cleanups: use const where appropriate, eliminate casts,
6842 use void * instead of char * in lhash.
6845 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6846 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6847 this the server could overwrite ephemeral keys that the client
6851 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6852 using 50 iterations of the Rabin-Miller test.
6854 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6855 iterations of the Rabin-Miller test as required by the appendix
6856 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6857 As BN_is_prime_fasttest includes trial division, DSA parameter
6858 generation becomes much faster.
6860 This implies a change for the callback functions in DSA_is_prime
6861 and DSA_generate_parameters: The callback function is called once
6862 for each positive witness in the Rabin-Miller test, not just
6863 occasionally in the inner loop; and the parameters to the
6864 callback function now provide an iteration count for the outer
6865 loop rather than for the current invocation of the inner loop.
6866 DSA_generate_parameters additionally can call the callback
6867 function with an 'iteration count' of -1, meaning that a
6868 candidate has passed the trial division test (when q is generated
6869 from an application-provided seed, trial division is skipped).
6872 *) New function BN_is_prime_fasttest that optionally does trial
6873 division before starting the Rabin-Miller test and has
6874 an additional BN_CTX * argument (whereas BN_is_prime always
6875 has to allocate at least one BN_CTX).
6876 'callback(1, -1, cb_arg)' is called when a number has passed the
6877 trial division stage.
6880 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6884 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6887 *) New function BN_pseudo_rand().
6890 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6891 bignum version of BN_from_montgomery() with the working code from
6892 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6896 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6897 made it impossible to use the same SSL_SESSION data structure in
6898 SSL2 clients in multiple threads.
6901 *) The return value of RAND_load_file() no longer counts bytes obtained
6902 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6903 to seed the PRNG (previously an explicit byte count was required).
6904 [Ulf Möller, Bodo Möller]
6906 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6907 used (char *) instead of (void *) and had casts all over the place.
6910 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6913 *) Retain source code compatibility for BN_prime_checks macro:
6914 BN_is_prime(..., BN_prime_checks, ...) now uses
6915 BN_prime_checks_for_size to determine the appropriate number of
6916 Rabin-Miller iterations.
6919 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6920 DH_CHECK_P_NOT_SAFE_PRIME.
6921 (Check if this is true? OpenPGP calls them "strong".)
6924 *) Merge the functionality of "dh" and "gendh" programs into a new program
6925 "dhparam". The old programs are retained for now but will handle DH keys
6926 (instead of parameters) in future.
6929 *) Make the ciphers, s_server and s_client programs check the return values
6930 when a new cipher list is set.
6933 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6934 ciphers. Before when the 56bit ciphers were enabled the sorting was
6937 The syntax for the cipher sorting has been extended to support sorting by
6938 cipher-strength (using the strength_bits hard coded in the tables).
6939 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6941 Fix a bug in the cipher-command parser: when supplying a cipher command
6942 string with an "undefined" symbol (neither command nor alphanumeric
6943 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6944 an error is flagged.
6946 Due to the strength-sorting extension, the code of the
6947 ssl_create_cipher_list() function was completely rearranged. I hope that
6948 the readability was also increased :-)
6949 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6951 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6952 for the first serial number and places 2 in the serial number file. This
6953 avoids problems when the root CA is created with serial number zero and
6954 the first user certificate has the same issuer name and serial number
6958 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6959 the new code. Add documentation for this stuff.
6962 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6963 X509_*() to X509at_*() on the grounds that they don't handle X509
6964 structures and behave in an analagous way to the X509v3 functions:
6965 they shouldn't be called directly but wrapper functions should be used
6968 So we also now have some wrapper functions that call the X509at functions
6969 when passed certificate requests. (TO DO: similar things can be done with
6970 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6971 things. Some of these need some d2i or i2d and print functionality
6972 because they handle more complex structures.)
6975 *) Add missing #ifndefs that caused missing symbols when building libssl
6976 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6977 NO_RSA in ssl/s2*.c.
6978 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6980 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6981 has a return value which indicates the quality of the random data
6982 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6983 error queue. New function RAND_pseudo_bytes() generates output that is
6984 guaranteed to be unique but not unpredictable. RAND_add is like
6985 RAND_seed, but takes an extra argument for an entropy estimate
6986 (RAND_seed always assumes full entropy).
6989 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6990 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6991 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6992 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6993 false-positive rate of at most 2^-80 for random input.
6996 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6999 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7000 in the 0.9.5 release), this returns the chain
7001 from an X509_CTX structure with a dup of the stack and all
7002 the X509 reference counts upped: so the stack will exist
7003 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7006 Also make SSL_SESSION_print() print out the verify return
7010 *) Add manpage for the pkcs12 command. Also change the default
7011 behaviour so MAC iteration counts are used unless the new
7012 -nomaciter option is used. This improves file security and
7013 only older versions of MSIE (4.0 for example) need it.
7016 *) Honor the no-xxx Configure options when creating .DEF files.
7019 *) Add PKCS#10 attributes to field table: challengePassword,
7020 unstructuredName and unstructuredAddress. These are taken from
7021 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7022 international characters are used.
7024 More changes to X509_ATTRIBUTE code: allow the setting of types
7025 based on strings. Remove the 'loc' parameter when adding
7026 attributes because these will be a SET OF encoding which is sorted
7030 *) Initial changes to the 'req' utility to allow request generation
7031 automation. This will allow an application to just generate a template
7032 file containing all the field values and have req construct the
7035 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7036 used all over the place including certificate requests and PKCS#7
7037 structures. They are currently handled manually where necessary with
7038 some primitive wrappers for PKCS#7. The new functions behave in a
7039 manner analogous to the X509 extension functions: they allow
7040 attributes to be looked up by NID and added.
7042 Later something similar to the X509V3 code would be desirable to
7043 automatically handle the encoding, decoding and printing of the
7044 more complex types. The string types like challengePassword can
7045 be handled by the string table functions.
7047 Also modified the multi byte string table handling. Now there is
7048 a 'global mask' which masks out certain types. The table itself
7049 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7050 is useful when for example there is only one permissible type
7051 (as in countryName) and using the mask might result in no valid
7055 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7056 SSL_get_peer_finished to allow applications to obtain the latest
7057 Finished messages sent to the peer or expected from the peer,
7058 respectively. (SSL_get_peer_finished is usually the Finished message
7059 actually received from the peer, otherwise the protocol will be aborted.)
7061 As the Finished message are message digests of the complete handshake
7062 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7063 be used for external authentication procedures when the authentication
7064 provided by SSL/TLS is not desired or is not enough.
7067 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7068 the host supports BWX extension and if Compaq C is present on the
7069 $PATH. Just exploiting of the BWX extension results in 20-30%
7070 performance kick for some algorithms, e.g. DES and RC4 to mention
7071 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7075 *) Add support for MS "fast SGC". This is arguably a violation of the
7076 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7077 weak crypto and after checking the certificate is SGC a second one
7078 with strong crypto. MS SGC stops the first handshake after receiving
7079 the server certificate message and sends a second client hello. Since
7080 a server will typically do all the time consuming operations before
7081 expecting any further messages from the client (server key exchange
7082 is the most expensive) there is little difference between the two.
7084 To get OpenSSL to support MS SGC we have to permit a second client
7085 hello message after we have sent server done. In addition we have to
7086 reset the MAC if we do get this second client hello.
7089 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7090 if a DER encoded private key is RSA or DSA traditional format. Changed
7091 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7092 format DER encoded private key. Newer code should use PKCS#8 format which
7093 has the key type encoded in the ASN1 structure. Added DER private key
7094 support to pkcs8 application.
7097 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7098 ciphersuites has been selected (as required by the SSL 3/TLS 1
7099 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7100 is set, we interpret this as a request to violate the specification
7101 (the worst that can happen is a handshake failure, and 'correct'
7102 behaviour would result in a handshake failure anyway).
7105 *) In SSL_CTX_add_session, take into account that there might be multiple
7106 SSL_SESSION structures with the same session ID (e.g. when two threads
7107 concurrently obtain them from an external cache).
7108 The internal cache can handle only one SSL_SESSION with a given ID,
7109 so if there's a conflict, we now throw out the old one to achieve
7113 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7114 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7115 some routines that use cipher OIDs: some ciphers do not have OIDs
7116 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7120 *) Simplify the trust setting structure and code. Now we just have
7121 two sequences of OIDs for trusted and rejected settings. These will
7122 typically have values the same as the extended key usage extension
7123 and any application specific purposes.
7125 The trust checking code now has a default behaviour: it will just
7126 check for an object with the same NID as the passed id. Functions can
7127 be provided to override either the default behaviour or the behaviour
7128 for a given id. SSL client, server and email already have functions
7129 in place for compatibility: they check the NID and also return "trusted"
7130 if the certificate is self signed.
7133 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7134 traditional format into an EVP_PKEY structure.
7137 *) Add a password callback function PEM_cb() which either prompts for
7138 a password if usr_data is NULL or otherwise assumes it is a null
7139 terminated password. Allow passwords to be passed on command line
7140 environment or config files in a few more utilities.
7143 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7144 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7145 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7146 Update documentation.
7149 *) Support for ASN1 "NULL" type. This could be handled before by using
7150 ASN1_TYPE but there wasn't any function that would try to read a NULL
7151 and produce an error if it couldn't. For compatibility we also have
7152 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7153 don't allocate anything because they don't need to.
7156 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7158 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7160 *) Rebuild of the memory allocation routines used by OpenSSL code and
7161 possibly others as well. The purpose is to make an interface that
7162 provide hooks so anyone can build a separate set of allocation and
7163 deallocation routines to be used by OpenSSL, for example memory
7164 pool implementations, or something else, which was previously hard
7165 since Malloc(), Realloc() and Free() were defined as macros having
7166 the values malloc, realloc and free, respectively (except for Win32
7167 compilations). The same is provided for memory debugging code.
7168 OpenSSL already comes with functionality to find memory leaks, but
7169 this gives people a chance to debug other memory problems.
7171 With these changes, a new set of functions and macros have appeared:
7173 CRYPTO_set_mem_debug_functions() [F]
7174 CRYPTO_get_mem_debug_functions() [F]
7175 CRYPTO_dbg_set_options() [F]
7176 CRYPTO_dbg_get_options() [F]
7177 CRYPTO_malloc_debug_init() [M]
7179 The memory debug functions are NULL by default, unless the library
7180 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7181 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7182 gives the standard debugging functions that come with OpenSSL) or
7183 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7184 provided by the library user) must be used. When the standard
7185 debugging functions are used, CRYPTO_dbg_set_options can be used to
7186 request additional information:
7187 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7188 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7190 Also, things like CRYPTO_set_mem_functions will always give the
7191 expected result (the new set of functions is used for allocation
7192 and deallocation) at all times, regardless of platform and compiler
7195 To finish it up, some functions that were never use in any other
7196 way than through macros have a new API and new semantic:
7199 CRYPTO_dbg_realloc()
7202 All macros of value have retained their old syntax.
7203 [Richard Levitte and Bodo Moeller]
7205 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7206 ordering of SMIMECapabilities wasn't in "strength order" and there
7207 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7211 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7212 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7213 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7215 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7216 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7217 functionality to handle multipart/signed properly) and a utility
7218 called 'smime' to call all this stuff. This is based on code I
7219 originally wrote for Celo who have kindly allowed it to be
7220 included in OpenSSL.
7223 *) Add variants des_set_key_checked and des_set_key_unchecked of
7224 des_set_key (aka des_key_sched). Global variable des_check_key
7225 decides which of these is called by des_set_key; this way
7226 des_check_key behaves as it always did, but applications and
7227 the library itself, which was buggy for des_check_key == 1,
7228 have a cleaner way to pick the version they need.
7231 *) New function PKCS12_newpass() which changes the password of a
7235 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7236 dynamic mix. In both cases the ids can be used as an index into the
7237 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7238 functions so they accept a list of the field values and the
7239 application doesn't need to directly manipulate the X509_TRUST
7243 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7247 *) Modify the way the V3 extension code looks up extensions. This now
7248 works in a similar way to the object code: we have some "standard"
7249 extensions in a static table which is searched with OBJ_bsearch()
7250 and the application can add dynamic ones if needed. The file
7251 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7252 updated whenever a new extension is added to the core code and kept
7253 in ext_nid order. There is a simple program 'tabtest.c' which checks
7254 this. New extensions are not added too often so this file can readily
7255 be maintained manually.
7257 There are two big advantages in doing things this way. The extensions
7258 can be looked up immediately and no longer need to be "added" using
7259 X509V3_add_standard_extensions(): this function now does nothing.
7260 [Side note: I get *lots* of email saying the extension code doesn't
7261 work because people forget to call this function]
7262 Also no dynamic allocation is done unless new extensions are added:
7263 so if we don't add custom extensions there is no need to call
7264 X509V3_EXT_cleanup().
7267 *) Modify enc utility's salting as follows: make salting the default. Add a
7268 magic header, so unsalted files fail gracefully instead of just decrypting
7269 to garbage. This is because not salting is a big security hole, so people
7270 should be discouraged from doing it.
7273 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7274 digest to be passed on the command line but it only used this
7275 parameter when signing a certificate. Modified so all relevant
7276 operations are affected by the digest parameter including the
7277 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7278 DSA key was used because it didn't fix the digest.
7281 *) Initial certificate chain verify code. Currently tests the untrusted
7282 certificates for consistency with the verify purpose (which is set
7283 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7285 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7286 this is because it will reject chains with invalid extensions whereas
7287 every previous version of OpenSSL and SSLeay made no checks at all.
7289 Trust code: checks the root CA for the relevant trust settings. Trust
7290 settings have an initial value consistent with the verify purpose: e.g.
7291 if the verify purpose is for SSL client use it expects the CA to be
7292 trusted for SSL client use. However the default value can be changed to
7293 permit custom trust settings: one example of this would be to only trust
7294 certificates from a specific "secure" set of CAs.
7296 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7297 which should be used for version portability: especially since the
7298 verify structure is likely to change more often now.
7300 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7301 to set them. If not set then assume SSL clients will verify SSL servers
7304 Two new options to the verify program: -untrusted allows a set of
7305 untrusted certificates to be passed in and -purpose which sets the
7306 intended purpose of the certificate. If a purpose is set then the
7307 new chain verify code is used to check extension consistency.
7310 *) Support for the authority information access extension.
7313 *) Modify RSA and DSA PEM read routines to transparently handle
7314 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7315 public keys in a format compatible with certificate
7316 SubjectPublicKeyInfo structures. Unfortunately there were already
7317 functions called *_PublicKey_* which used various odd formats so
7318 these are retained for compatibility: however the DSA variants were
7319 never in a public release so they have been deleted. Changed dsa/rsa
7320 utilities to handle the new format: note no releases ever handled public
7321 keys so we should be OK.
7323 The primary motivation for this change is to avoid the same fiasco
7324 that dogs private keys: there are several incompatible private key
7325 formats some of which are standard and some OpenSSL specific and
7326 require various evil hacks to allow partial transparent handling and
7327 even then it doesn't work with DER formats. Given the option anything
7328 other than PKCS#8 should be dumped: but the other formats have to
7329 stay in the name of compatibility.
7331 With public keys and the benefit of hindsight one standard format
7332 is used which works with EVP_PKEY, RSA or DSA structures: though
7333 it clearly returns an error if you try to read the wrong kind of key.
7335 Added a -pubkey option to the 'x509' utility to output the public key.
7336 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7337 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7338 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7339 that do the same as the EVP_PKEY_assign_*() except they up the
7340 reference count of the added key (they don't "swallow" the
7344 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7345 CRLs would fail if the file contained no certificates or no CRLs:
7346 added a new function to read in both types and return the number
7347 read: this means that if none are read it will be an error. The
7348 DER versions of the certificate and CRL reader would always fail
7349 because it isn't possible to mix certificates and CRLs in DER format
7350 without choking one or the other routine. Changed this to just read
7351 a certificate: this is the best we can do. Also modified the code
7352 in apps/verify.c to take notice of return codes: it was previously
7353 attempting to read in certificates from NULL pointers and ignoring
7354 any errors: this is one reason why the cert and CRL reader seemed
7355 to work. It doesn't check return codes from the default certificate
7356 routines: these may well fail if the certificates aren't installed.
7359 *) Code to support otherName option in GeneralName.
7362 *) First update to verify code. Change the verify utility
7363 so it warns if it is passed a self signed certificate:
7364 for consistency with the normal behaviour. X509_verify
7365 has been modified to it will now verify a self signed
7366 certificate if *exactly* the same certificate appears
7367 in the store: it was previously impossible to trust a
7368 single self signed certificate. This means that:
7369 openssl verify ss.pem
7370 now gives a warning about a self signed certificate but
7371 openssl verify -CAfile ss.pem ss.pem
7375 *) For servers, store verify_result in SSL_SESSION data structure
7376 (and add it to external session representation).
7377 This is needed when client certificate verifications fails,
7378 but an application-provided verification callback (set by
7379 SSL_CTX_set_cert_verify_callback) allows accepting the session
7380 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7381 but returns 1): When the session is reused, we have to set
7382 ssl->verify_result to the appropriate error code to avoid
7384 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7386 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7387 case in PKCS7_dataInit() where the signed PKCS7 structure
7388 didn't contain any existing data because it was being created.
7389 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7391 *) Add a salt to the key derivation routines in enc.c. This
7392 forms the first 8 bytes of the encrypted file. Also add a
7393 -S option to allow a salt to be input on the command line.
7396 *) New function X509_cmp(). Oddly enough there wasn't a function
7397 to compare two certificates. We do this by working out the SHA1
7398 hash and comparing that. X509_cmp() will be needed by the trust
7402 *) SSL_get1_session() is like SSL_get_session(), but increments
7403 the reference count in the SSL_SESSION returned.
7404 [Geoff Thorpe <geoff@eu.c2.net>]
7406 *) Fix for 'req': it was adding a null to request attributes.
7407 Also change the X509_LOOKUP and X509_INFO code to handle
7408 certificate auxiliary information.
7411 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7415 *) Add the possibility to add extra information to the memory leak
7416 detecting output, to form tracebacks, showing from where each
7417 allocation was originated: CRYPTO_push_info("constant string") adds
7418 the string plus current file name and line number to a per-thread
7419 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7420 is like calling CYRPTO_pop_info() until the stack is empty.
7421 Also updated memory leak detection code to be multi-thread-safe.
7424 *) Add options -text and -noout to pkcs7 utility and delete the
7425 encryption options which never did anything. Update docs.
7428 *) Add options to some of the utilities to allow the pass phrase
7429 to be included on either the command line (not recommended on
7430 OSes like Unix) or read from the environment. Update the
7431 manpages and fix a few bugs.
7434 *) Add a few manpages for some of the openssl commands.
7437 *) Fix the -revoke option in ca. It was freeing up memory twice,
7438 leaking and not finding already revoked certificates.
7441 *) Extensive changes to support certificate auxiliary information.
7442 This involves the use of X509_CERT_AUX structure and X509_AUX
7443 functions. An X509_AUX function such as PEM_read_X509_AUX()
7444 can still read in a certificate file in the usual way but it
7445 will also read in any additional "auxiliary information". By
7446 doing things this way a fair degree of compatibility can be
7447 retained: existing certificates can have this information added
7448 using the new 'x509' options.
7450 Current auxiliary information includes an "alias" and some trust
7451 settings. The trust settings will ultimately be used in enhanced
7452 certificate chain verification routines: currently a certificate
7453 can only be trusted if it is self signed and then it is trusted
7457 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7458 The problem was that one of the replacement routines had not been working
7459 since SSLeay releases. For now the offending routine has been replaced
7460 with non-optimised assembler. Even so, this now gives around 95%
7461 performance improvement for 1024 bit RSA signs.
7464 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7465 handling. Most clients have the effective key size in bits equal to
7466 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7467 A few however don't do this and instead use the size of the decrypted key
7468 to determine the RC2 key length and the AlgorithmIdentifier to determine
7469 the effective key length. In this case the effective key length can still
7470 be 40 bits but the key length can be 168 bits for example. This is fixed
7471 by manually forcing an RC2 key into the EVP_PKEY structure because the
7472 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7473 the key length and effective key length are equal.
7476 *) Add a bunch of functions that should simplify the creation of
7477 X509_NAME structures. Now you should be able to do:
7478 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7479 and have it automatically work out the correct field type and fill in
7480 the structures. The more adventurous can try:
7481 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7482 and it will (hopefully) work out the correct multibyte encoding.
7485 *) Change the 'req' utility to use the new field handling and multibyte
7486 copy routines. Before the DN field creation was handled in an ad hoc
7487 way in req, ca, and x509 which was rather broken and didn't support
7488 BMPStrings or UTF8Strings. Since some software doesn't implement
7489 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7490 using the dirstring_type option. See the new comment in the default
7491 openssl.cnf for more info.
7494 *) Make crypto/rand/md_rand.c more robust:
7495 - Assure unique random numbers after fork().
7496 - Make sure that concurrent threads access the global counter and
7497 md serializably so that we never lose entropy in them
7498 or use exactly the same state in multiple threads.
7499 Access to the large state is not always serializable because
7500 the additional locking could be a performance killer, and
7501 md should be large enough anyway.
7504 *) New file apps/app_rand.c with commonly needed functionality
7505 for handling the random seed file.
7507 Use the random seed file in some applications that previously did not:
7509 dsaparam -genkey (which also ignored its '-rand' option),
7512 x509 (when signing).
7513 Except on systems with /dev/urandom, it is crucial to have a random
7514 seed file at least for key creation, DSA signing, and for DH exchanges;
7515 for RSA signatures we could do without one.
7517 gendh and gendsa (unlike genrsa) used to read only the first byte
7518 of each file listed in the '-rand' option. The function as previously
7519 found in genrsa is now in app_rand.c and is used by all programs
7520 that support '-rand'.
7523 *) In RAND_write_file, use mode 0600 for creating files;
7524 don't just chmod when it may be too late.
7527 *) Report an error from X509_STORE_load_locations
7528 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7531 *) New function ASN1_mbstring_copy() this copies a string in either
7532 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7533 into an ASN1_STRING type. A mask of permissible types is passed
7534 and it chooses the "minimal" type to use or an error if not type
7538 *) Add function equivalents to the various macros in asn1.h. The old
7539 macros are retained with an M_ prefix. Code inside the library can
7540 use the M_ macros. External code (including the openssl utility)
7541 should *NOT* in order to be "shared library friendly".
7544 *) Add various functions that can check a certificate's extensions
7545 to see if it usable for various purposes such as SSL client,
7546 server or S/MIME and CAs of these types. This is currently
7547 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7548 verification. Also added a -purpose flag to x509 utility to
7549 print out all the purposes.
7552 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7556 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7557 for, obtain and decode and extension and obtain its critical flag.
7558 This allows all the necessary extension code to be handled in a
7559 single function call.
7562 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7563 platforms. See crypto/rc4/rc4_enc.c for further details.
7566 *) New -noout option to asn1parse. This causes no output to be produced
7567 its main use is when combined with -strparse and -out to extract data
7568 from a file (which may not be in ASN.1 format).
7571 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7572 when producing the local key id.
7573 [Richard Levitte <levitte@stacken.kth.se>]
7575 *) New option -dhparam in s_server. This allows a DH parameter file to be
7576 stated explicitly. If it is not stated then it tries the first server
7577 certificate file. The previous behaviour hard coded the filename
7581 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7582 a public key to be input or output. For example:
7583 openssl rsa -in key.pem -pubout -out pubkey.pem
7584 Also added necessary DSA public key functions to handle this.
7587 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7588 in the message. This was handled by allowing
7589 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7590 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7592 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7593 to the end of the strings whereas this didn't. This would cause problems
7594 if strings read with d2i_ASN1_bytes() were later modified.
7595 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7597 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7598 data and it contains EOF it will end up returning an error. This is
7599 caused by input 46 bytes long. The cause is due to the way base64
7600 BIOs find the start of base64 encoded data. They do this by trying a
7601 trial decode on each line until they find one that works. When they
7602 do a flag is set and it starts again knowing it can pass all the
7603 data directly through the decoder. Unfortunately it doesn't reset
7604 the context it uses. This means that if EOF is reached an attempt
7605 is made to pass two EOFs through the context and this causes the
7606 resulting error. This can also cause other problems as well. As is
7607 usual with these problems it takes *ages* to find and the fix is
7608 trivial: move one line.
7609 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7611 *) Ugly workaround to get s_client and s_server working under Windows. The
7612 old code wouldn't work because it needed to select() on sockets and the
7613 tty (for keypresses and to see if data could be written). Win32 only
7614 supports select() on sockets so we select() with a 1s timeout on the
7615 sockets and then see if any characters are waiting to be read, if none
7616 are present then we retry, we also assume we can always write data to
7617 the tty. This isn't nice because the code then blocks until we've
7618 received a complete line of data and it is effectively polling the
7619 keyboard at 1s intervals: however it's quite a bit better than not
7620 working at all :-) A dedicated Windows application might handle this
7621 with an event loop for example.
7624 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7625 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7626 will be called when RSA_sign() and RSA_verify() are used. This is useful
7627 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7628 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7629 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7630 This necessitated the support of an extra signature type NID_md5_sha1
7631 for SSL signatures and modifications to the SSL library to use it instead
7632 of calling RSA_public_decrypt() and RSA_private_encrypt().
7635 *) Add new -verify -CAfile and -CApath options to the crl program, these
7636 will lookup a CRL issuers certificate and verify the signature in a
7637 similar way to the verify program. Tidy up the crl program so it
7638 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7639 less strict. It will now permit CRL extensions even if it is not
7640 a V2 CRL: this will allow it to tolerate some broken CRLs.
7643 *) Initialize all non-automatic variables each time one of the openssl
7644 sub-programs is started (this is necessary as they may be started
7645 multiple times from the "OpenSSL>" prompt).
7646 [Lennart Bang, Bodo Moeller]
7648 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7649 removing all other RSA functionality (this is what NO_RSA does). This
7650 is so (for example) those in the US can disable those operations covered
7651 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7655 *) Non-copying interface to BIO pairs.
7656 (still largely untested)
7659 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7660 ASCII string. This was handled independently in various places before.
7663 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7664 UTF8 strings a character at a time.
7667 *) Use client_version from client hello to select the protocol
7668 (s23_srvr.c) and for RSA client key exchange verification
7669 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7672 *) Add various utility functions to handle SPKACs, these were previously
7673 handled by poking round in the structure internals. Added new function
7674 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7675 print, verify and generate SPKACs. Based on an original idea from
7676 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7679 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7682 *) Allow the config file extension section to be overwritten on the
7683 command line. Based on an original idea from Massimiliano Pala
7684 <madwolf@comune.modena.it>. The new option is called -extensions
7685 and can be applied to ca, req and x509. Also -reqexts to override
7686 the request extensions in req and -crlexts to override the crl extensions
7690 *) Add new feature to the SPKAC handling in ca. Now you can include
7691 the same field multiple times by preceding it by "XXXX." for example:
7694 this is the same syntax as used in the req config file.
7697 *) Allow certificate extensions to be added to certificate requests. These
7698 are specified in a 'req_extensions' option of the req section of the
7699 config file. They can be printed out with the -text option to req but
7700 are otherwise ignored at present.
7703 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7704 data read consists of only the final block it would not decrypted because
7705 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7706 A misplaced 'break' also meant the decrypted final block might not be
7707 copied until the next read.
7710 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7711 a few extra parameters to the DH structure: these will be useful if
7712 for example we want the value of 'q' or implement X9.42 DH.
7715 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7716 provides hooks that allow the default DSA functions or functions on a
7717 "per key" basis to be replaced. This allows hardware acceleration and
7718 hardware key storage to be handled without major modification to the
7719 library. Also added low level modexp hooks and CRYPTO_EX structure and
7720 associated functions.
7723 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7724 as "read only": it can't be written to and the buffer it points to will
7725 not be freed. Reading from a read only BIO is much more efficient than
7726 a normal memory BIO. This was added because there are several times when
7727 an area of memory needs to be read from a BIO. The previous method was
7728 to create a memory BIO and write the data to it, this results in two
7729 copies of the data and an O(n^2) reading algorithm. There is a new
7730 function BIO_new_mem_buf() which creates a read only memory BIO from
7731 an area of memory. Also modified the PKCS#7 routines to use read only
7735 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7736 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7737 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7738 but a retry condition occured while trying to read the rest.
7741 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7742 NID_pkcs7_encrypted by default: this was wrong since this should almost
7743 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7744 the encrypted data type: this is a more sensible place to put it and it
7745 allows the PKCS#12 code to be tidied up that duplicated this
7749 *) Changed obj_dat.pl script so it takes its input and output files on
7750 the command line. This should avoid shell escape redirection problems
7754 *) Initial support for certificate extension requests, these are included
7755 in things like Xenroll certificate requests. Included functions to allow
7756 extensions to be obtained and added.
7759 *) -crlf option to s_client and s_server for sending newlines as
7760 CRLF (as required by many protocols).
7763 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7765 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7766 [Ralf S. Engelschall]
7768 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7769 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7771 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7775 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7776 DH parameters/keys (q is lost during that conversion, but the resulting
7777 DH parameters contain its length).
7779 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7780 much faster than DH_generate_parameters (which creates parameters
7781 where p = 2*q + 1), and also the smaller q makes DH computations
7782 much more efficient (160-bit exponentiation instead of 1024-bit
7783 exponentiation); so this provides a convenient way to support DHE
7784 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7785 utter importance to use
7786 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7788 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7789 when such DH parameters are used, because otherwise small subgroup
7790 attacks may become possible!
7793 *) Avoid memory leak in i2d_DHparams.
7796 *) Allow the -k option to be used more than once in the enc program:
7797 this allows the same encrypted message to be read by multiple recipients.
7800 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7801 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7802 it will always use the numerical form of the OID, even if it has a short
7806 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7807 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7808 otherwise bn_mod_exp was called. In the case of hardware keys for example
7809 no private key components need be present and it might store extra data
7810 in the RSA structure, which cannot be accessed from bn_mod_exp.
7811 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7812 private key operations.
7815 *) Added support for SPARC Linux.
7818 *) pem_password_cb function type incompatibly changed from
7819 typedef int pem_password_cb(char *buf, int size, int rwflag);
7821 ....(char *buf, int size, int rwflag, void *userdata);
7822 so that applications can pass data to their callbacks:
7823 The PEM[_ASN1]_{read,write}... functions and macros now take an
7824 additional void * argument, which is just handed through whenever
7825 the password callback is called.
7826 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7828 New function SSL_CTX_set_default_passwd_cb_userdata.
7830 Compatibility note: As many C implementations push function arguments
7831 onto the stack in reverse order, the new library version is likely to
7832 interoperate with programs that have been compiled with the old
7833 pem_password_cb definition (PEM_whatever takes some data that
7834 happens to be on the stack as its last argument, and the callback
7835 just ignores this garbage); but there is no guarantee whatsoever that
7838 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7839 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7840 problems not only on Windows, but also on some Unix platforms.
7841 To avoid problematic command lines, these definitions are now in an
7842 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7843 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7846 *) MIPS III/IV assembler module is reimplemented.
7849 *) More DES library cleanups: remove references to srand/rand and
7850 delete an unused file.
7853 *) Add support for the the free Netwide assembler (NASM) under Win32,
7854 since not many people have MASM (ml) and it can be hard to obtain.
7855 This is currently experimental but it seems to work OK and pass all
7856 the tests. Check out INSTALL.W32 for info.
7859 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7860 without temporary keys kept an extra copy of the server key,
7861 and connections with temporary keys did not free everything in case
7865 *) New function RSA_check_key and new openssl rsa option -check
7866 for verifying the consistency of RSA keys.
7867 [Ulf Moeller, Bodo Moeller]
7869 *) Various changes to make Win32 compile work:
7870 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7871 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7872 comparison" warnings.
7873 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7876 *) Add a debugging option to PKCS#5 v2 key generation function: when
7877 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7878 derived keys are printed to stderr.
7881 *) Copy the flags in ASN1_STRING_dup().
7882 [Roman E. Pavlov <pre@mo.msk.ru>]
7884 *) The x509 application mishandled signing requests containing DSA
7885 keys when the signing key was also DSA and the parameters didn't match.
7887 It was supposed to omit the parameters when they matched the signing key:
7888 the verifying software was then supposed to automatically use the CA's
7889 parameters if they were absent from the end user certificate.
7891 Omitting parameters is no longer recommended. The test was also
7892 the wrong way round! This was probably due to unusual behaviour in
7893 EVP_cmp_parameters() which returns 1 if the parameters match.
7894 This meant that parameters were omitted when they *didn't* match and
7895 the certificate was useless. Certificates signed with 'ca' didn't have
7897 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7899 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7900 The interface is as follows:
7901 Applications can use
7902 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7903 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7904 "off" is now the default.
7905 The library internally uses
7906 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7907 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7908 to disable memory-checking temporarily.
7910 Some inconsistent states that previously were possible (and were
7911 even the default) are now avoided.
7913 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7914 with each memory chunk allocated; this is occasionally more helpful
7915 than just having a counter.
7917 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7919 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7923 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7924 which largely parallels "options", but is for changing API behaviour,
7925 whereas "options" are about protocol behaviour.
7926 Initial "mode" flags are:
7928 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7929 a single record has been written.
7930 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7931 retries use the same buffer location.
7932 (But all of the contents must be
7936 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7939 *) Fix problems with no-hmac etc.
7940 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7942 *) New functions RSA_get_default_method(), RSA_set_method() and
7943 RSA_get_method(). These allows replacement of RSA_METHODs without having
7944 to mess around with the internals of an RSA structure.
7947 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7948 Also really enable memory leak checks in openssl.c and in some
7950 [Chad C. Mulligan, Bodo Moeller]
7952 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7953 up the length of negative integers. This has now been simplified to just
7954 store the length when it is first determined and use it later, rather
7955 than trying to keep track of where data is copied and updating it to
7957 [Steve Henson, reported by Brien Wheeler
7958 <bwheeler@authentica-security.com>]
7960 *) Add a new function PKCS7_signatureVerify. This allows the verification
7961 of a PKCS#7 signature but with the signing certificate passed to the
7962 function itself. This contrasts with PKCS7_dataVerify which assumes the
7963 certificate is present in the PKCS#7 structure. This isn't always the
7964 case: certificates can be omitted from a PKCS#7 structure and be
7965 distributed by "out of band" means (such as a certificate database).
7968 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7969 function prototypes in pem.h, also change util/mkdef.pl to add the
7970 necessary function names.
7973 *) mk1mf.pl (used by Windows builds) did not properly read the
7974 options set by Configure in the top level Makefile, and Configure
7975 was not even able to write more than one option correctly.
7976 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7979 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7980 file to be loaded from a BIO or FILE pointer. The BIO version will
7981 for example allow memory BIOs to contain config info.
7984 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7985 Whoever hopes to achieve shared-library compatibility across versions
7986 must use this, not the compile-time macro.
7987 (Exercise 0.9.4: Which is the minimum library version required by
7989 Note: All this applies only to multi-threaded programs, others don't
7993 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7994 through a BIO pair triggered the default case, i.e.
7995 SSLerr(...,SSL_R_UNKNOWN_STATE).
7998 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7999 can use the SSL library even if none of the specific BIOs is
8003 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8004 for the encoded length.
8005 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8007 *) Add initial documentation of the X509V3 functions.
8010 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8011 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8012 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8013 secure PKCS#8 private key format with a high iteration count.
8016 *) Fix determination of Perl interpreter: A perl or perl5
8017 _directory_ in $PATH was also accepted as the interpreter.
8018 [Ralf S. Engelschall]
8020 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8021 wrong with it but it was very old and did things like calling
8022 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8026 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8027 to use the new extension code.
8030 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8031 with macros. This should make it easier to change their form, add extra
8032 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8036 *) Add to configuration table a new entry that can specify an alternative
8037 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8038 according to Mark Crispin <MRC@Panda.COM>.
8042 *) DES CBC did not update the IV. Weird.
8045 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8046 Changing the behaviour of the former might break existing programs --
8047 where IV updating is needed, des_ncbc_encrypt can be used.
8050 *) When bntest is run from "make test" it drives bc to check its
8051 calculations, as well as internally checking them. If an internal check
8052 fails, it needs to cause bc to give a non-zero result or make test carries
8053 on without noticing the failure. Fixed.
8056 *) DES library cleanups.
8059 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8060 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8061 ciphers. NOTE: although the key derivation function has been verified
8062 against some published test vectors it has not been extensively tested
8063 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8067 *) Instead of "mkdir -p", which is not fully portable, use new
8068 Perl script "util/mkdir-p.pl".
8071 *) Rewrite the way password based encryption (PBE) is handled. It used to
8072 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8073 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8074 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8075 the 'parameter' field of the AlgorithmIdentifier is passed to the
8076 underlying key generation function so it must do its own ASN1 parsing.
8077 This has also changed the EVP_PBE_CipherInit() function which now has a
8078 'parameter' argument instead of literal salt and iteration count values
8079 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8082 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8083 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8084 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8085 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8086 value was just used as a "magic string" and not used directly its
8087 value doesn't matter.
8090 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8094 *) "linux-sparc64" configuration (ultrapenguin).
8095 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8096 "linux-sparc" configuration.
8097 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8099 *) config now generates no-xxx options for missing ciphers.
8102 *) Support the EBCDIC character set (work in progress).
8103 File ebcdic.c not yet included because it has a different license.
8104 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8106 *) Support BS2000/OSD-POSIX.
8107 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8109 *) Make callbacks for key generation use void * instead of char *.
8112 *) Make S/MIME samples compile (not yet tested).
8115 *) Additional typesafe stacks.
8118 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8122 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8124 *) New configuration variant "sco5-gcc".
8126 *) Updated some demos.
8127 [Sean O Riordain, Wade Scholine]
8129 *) Add missing BIO_free at exit of pkcs12 application.
8132 *) Fix memory leak in conf.c.
8135 *) Updates for Win32 to assembler version of MD5.
8138 *) Set #! path to perl in apps/der_chop to where we found it
8139 instead of using a fixed path.
8142 *) SHA library changes for irix64-mips4-cc.
8145 *) Improvements for VMS support.
8149 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8151 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8152 This also avoids the problems with SC4.2 and unpatched SC5.
8153 [Andy Polyakov <appro@fy.chalmers.se>]
8155 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8156 These are required because of the typesafe stack would otherwise break
8157 existing code. If old code used a structure member which used to be STACK
8158 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8159 sk_num or sk_value it would produce an error because the num, data members
8160 are not present in STACK_OF. Now it just produces a warning. sk_set
8161 replaces the old method of assigning a value to sk_value
8162 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8163 that does this will no longer work (and should use sk_set instead) but
8164 this could be regarded as a "questionable" behaviour anyway.
8167 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8168 correctly handle encrypted S/MIME data.
8171 *) Change type of various DES function arguments from des_cblock
8172 (which means, in function argument declarations, pointer to char)
8173 to des_cblock * (meaning pointer to array with 8 char elements),
8174 which allows the compiler to do more typechecking; it was like
8175 that back in SSLeay, but with lots of ugly casts.
8177 Introduce new type const_des_cblock.
8180 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8181 problems: find RecipientInfo structure that matches recipient certificate
8182 and initialise the ASN1 structures properly based on passed cipher.
8185 *) Belatedly make the BN tests actually check the results.
8188 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8189 to and from BNs: it was completely broken. New compilation option
8190 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8191 key elements as negative integers.
8194 *) Reorganize and speed up MD5.
8195 [Andy Polyakov <appro@fy.chalmers.se>]
8198 [Richard Levitte <richard@levitte.org>]
8200 *) New option -out to asn1parse to allow the parsed structure to be
8201 output to a file. This is most useful when combined with the -strparse
8202 option to examine the output of things like OCTET STRINGS.
8205 *) Make SSL library a little more fool-proof by not requiring any longer
8206 that SSL_set_{accept,connect}_state be called before
8207 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8208 in many applications because usually everything *appeared* to work as
8209 intended anyway -- now it really works as intended).
8212 *) Move openssl.cnf out of lib/.
8215 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8216 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8217 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8218 [Ralf S. Engelschall]
8220 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8221 handle PKCS#7 enveloped data properly.
8222 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8224 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8225 copying pointers. The cert_st handling is changed by this in
8226 various ways (and thus what used to be known as ctx->default_cert
8227 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8228 any longer when s->cert does not give us what we need).
8229 ssl_cert_instantiate becomes obsolete by this change.
8230 As soon as we've got the new code right (possibly it already is?),
8231 we have solved a couple of bugs of the earlier code where s->cert
8232 was used as if it could not have been shared with other SSL structures.
8234 Note that using the SSL API in certain dirty ways now will result
8235 in different behaviour than observed with earlier library versions:
8236 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8237 does not influence s as it used to.
8239 In order to clean up things more thoroughly, inside SSL_SESSION
8240 we don't use CERT any longer, but a new structure SESS_CERT
8241 that holds per-session data (if available); currently, this is
8242 the peer's certificate chain and, for clients, the server's certificate
8243 and temporary key. CERT holds only those values that can have
8244 meaningful defaults in an SSL_CTX.
8247 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8248 from the internal representation. Various PKCS#7 fixes: remove some
8249 evil casts and set the enc_dig_alg field properly based on the signing
8253 *) Allow PKCS#12 password to be set from the command line or the
8254 environment. Let 'ca' get its config file name from the environment
8255 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8259 *) Allow certificate policies extension to use an IA5STRING for the
8260 organization field. This is contrary to the PKIX definition but
8261 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8265 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8266 without disallowing inline assembler and the like for non-pedantic builds.
8269 *) Support Borland C++ builder.
8270 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8275 *) SHA-1 cleanups and performance enhancements.
8276 [Andy Polyakov <appro@fy.chalmers.se>]
8278 *) Sparc v8plus assembler for the bignum library.
8279 [Andy Polyakov <appro@fy.chalmers.se>]
8281 *) Accept any -xxx and +xxx compiler options in Configure.
8284 *) Update HPUX configuration.
8287 *) Add missing sk_<type>_unshift() function to safestack.h
8288 [Ralf S. Engelschall]
8290 *) New function SSL_CTX_use_certificate_chain_file that sets the
8291 "extra_cert"s in addition to the certificate. (This makes sense
8292 only for "PEM" format files, as chains as a whole are not
8296 *) Support verify_depth from the SSL API.
8297 x509_vfy.c had what can be considered an off-by-one-error:
8298 Its depth (which was not part of the external interface)
8299 was actually counting the number of certificates in a chain;
8300 now it really counts the depth.
8303 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8304 instead of X509err, which often resulted in confusing error
8305 messages since the error codes are not globally unique
8306 (e.g. an alleged error in ssl3_accept when a certificate
8307 didn't match the private key).
8309 *) New function SSL_CTX_set_session_id_context that allows to set a default
8310 value (so that you don't need SSL_set_session_id_context for each
8311 connection using the SSL_CTX).
8314 *) OAEP decoding bug fix.
8317 *) Support INSTALL_PREFIX for package builders, as proposed by
8321 *) New Configure options "threads" and "no-threads". For systems
8322 where the proper compiler options are known (currently Solaris
8323 and Linux), "threads" is the default.
8326 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8329 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8330 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8331 such as /usr/local/bin.
8334 *) "make linux-shared" to build shared libraries.
8335 [Niels Poppe <niels@netbox.org>]
8337 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8340 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8341 extension adding in x509 utility.
8344 *) Remove NOPROTO sections and error code comments.
8347 *) Partial rewrite of the DEF file generator to now parse the ANSI
8351 *) New Configure options --prefix=DIR and --openssldir=DIR.
8354 *) Complete rewrite of the error code script(s). It is all now handled
8355 by one script at the top level which handles error code gathering,
8356 header rewriting and C source file generation. It should be much better
8357 than the old method: it now uses a modified version of Ulf's parser to
8358 read the ANSI prototypes in all header files (thus the old K&R definitions
8359 aren't needed for error creation any more) and do a better job of
8360 translating function codes into names. The old 'ASN1 error code imbedded
8361 in a comment' is no longer necessary and it doesn't use .err files which
8362 have now been deleted. Also the error code call doesn't have to appear all
8363 on one line (which resulted in some large lines...).
8366 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8369 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8370 0 (which usually indicates a closed connection), but continue reading.
8373 *) Fix some race conditions.
8376 *) Add support for CRL distribution points extension. Add Certificate
8377 Policies and CRL distribution points documentation.
8380 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8383 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8384 8 of keying material. Merlin has also confirmed interop with this fix
8385 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8386 [Merlin Hughes <merlin@baltimore.ie>]
8388 *) Fix lots of warnings.
8389 [Richard Levitte <levitte@stacken.kth.se>]
8391 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8392 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8393 [Richard Levitte <levitte@stacken.kth.se>]
8395 *) Fix problems with sizeof(long) == 8.
8396 [Andy Polyakov <appro@fy.chalmers.se>]
8398 *) Change functions to ANSI C.
8401 *) Fix typos in error codes.
8402 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8404 *) Remove defunct assembler files from Configure.
8407 *) SPARC v8 assembler BIGNUM implementation.
8408 [Andy Polyakov <appro@fy.chalmers.se>]
8410 *) Support for Certificate Policies extension: both print and set.
8411 Various additions to support the r2i method this uses.
8414 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8415 return a const string when you are expecting an allocated buffer.
8418 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8419 types DirectoryString and DisplayText.
8422 *) Add code to allow r2i extensions to access the configuration database,
8423 add an LHASH database driver and add several ctx helper functions.
8426 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8427 fail when they extended the size of a BIGNUM.
8430 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8431 support typesafe stack.
8434 *) Fix typo in SSL_[gs]et_options().
8435 [Nils Frostberg <nils@medcom.se>]
8437 *) Delete various functions and files that belonged to the (now obsolete)
8438 old X509V3 handling code.
8441 *) New Configure option "rsaref".
8444 *) Don't auto-generate pem.h.
8447 *) Introduce type-safe ASN.1 SETs.
8450 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8451 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8453 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8454 that links with OpenSSL (well at least cause lots of warnings), but fear
8455 not: the conversion is trivial, and it eliminates loads of evil casts. A
8456 few STACKed things have been converted already. Feel free to convert more.
8457 In the fullness of time, I'll do away with the STACK type altogether.
8460 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8461 specified in <certfile> by updating the entry in the index.txt file.
8462 This way one no longer has to edit the index.txt file manually for
8463 revoking a certificate. The -revoke option does the gory details now.
8464 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8466 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8467 `-text' option at all and this way the `-noout -text' combination was
8468 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8469 [Ralf S. Engelschall]
8471 *) Make sure a corresponding plain text error message exists for the
8472 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8473 verify callback function determined that a certificate was revoked.
8474 [Ralf S. Engelschall]
8476 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8477 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8478 all available cipers including rc5, which was forgotten until now.
8479 In order to let the testing shell script know which algorithms
8480 are available, a new (up to now undocumented) command
8481 "openssl list-cipher-commands" is used.
8484 *) Bugfix: s_client occasionally would sleep in select() when
8485 it should have checked SSL_pending() first.
8488 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8489 the raw DSA values prior to ASN.1 encoding.
8492 *) Tweaks to Configure
8493 [Niels Poppe <niels@netbox.org>]
8495 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8499 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8502 *) New config option to avoid instructions that are illegal on the 80386.
8503 The default code is faster, but requires at least a 486.
8506 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8507 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8508 same as SSL2_VERSION anyway.
8511 *) New "-showcerts" option for s_client.
8514 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8515 application. Various cleanups and fixes.
8518 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8519 modify error routines to work internally. Add error codes and PBE init
8520 to library startup routines.
8523 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8524 packing functions to asn1 and evp. Changed function names and error
8525 codes along the way.
8528 *) PKCS12 integration: and so it begins... First of several patches to
8529 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8530 objects to objects.h
8533 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8534 and display support for Thawte strong extranet extension.
8537 *) Add LinuxPPC support.
8538 [Jeff Dubrule <igor@pobox.org>]
8540 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8541 bn_div_words in alpha.s.
8542 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8544 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8545 OAEP isn't supported when OpenSSL is built with RSAref.
8546 [Ulf Moeller <ulf@fitug.de>]
8548 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8549 so they no longer are missing under -DNOPROTO.
8550 [Soren S. Jorvang <soren@t.dk>]
8553 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8555 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8556 doesn't work when the session is reused. Coming soon!
8559 *) Fix a security hole, that allows sessions to be reused in the wrong
8560 context thus bypassing client cert protection! All software that uses
8561 client certs and session caches in multiple contexts NEEDS PATCHING to
8562 allow session reuse! A fuller solution is in the works.
8563 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8565 *) Some more source tree cleanups (removed obsolete files
8566 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8567 permission on "config" script to be executable) and a fix for the INSTALL
8569 [Ulf Moeller <ulf@fitug.de>]
8571 *) Remove some legacy and erroneous uses of malloc, free instead of
8573 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8575 *) Make rsa_oaep_test return non-zero on error.
8576 [Ulf Moeller <ulf@fitug.de>]
8578 *) Add support for native Solaris shared libraries. Configure
8579 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8580 if someone would make that last step automatic.
8581 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8583 *) ctx_size was not built with the right compiler during "make links". Fixed.
8586 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8587 except NULL ciphers". This means the default cipher list will no longer
8588 enable NULL ciphers. They need to be specifically enabled e.g. with
8589 the string "DEFAULT:eNULL".
8592 *) Fix to RSA private encryption routines: if p < q then it would
8593 occasionally produce an invalid result. This will only happen with
8594 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8597 *) Be less restrictive and allow also `perl util/perlpath.pl
8598 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8599 because this way one can also use an interpreter named `perl5' (which is
8600 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8601 installed as `perl').
8602 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8604 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8605 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8607 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8608 advapi32.lib to Win32 build and change the pem test comparision
8609 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8610 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8611 and crypto/des/ede_cbcm_enc.c.
8614 *) DES quad checksum was broken on big-endian architectures. Fixed.
8617 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8618 Win32 test batch file so it (might) work again. The Win32 test batch file
8619 is horrible: I feel ill....
8622 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8623 in e_os.h. Audit of header files to check ANSI and non ANSI
8624 sections: 10 functions were absent from non ANSI section and not exported
8625 from Windows DLLs. Fixed up libeay.num for new functions.
8628 *) Make `openssl version' output lines consistent.
8629 [Ralf S. Engelschall]
8631 *) Fix Win32 symbol export lists for BIO functions: Added
8632 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8633 to ms/libeay{16,32}.def.
8634 [Ralf S. Engelschall]
8636 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8637 fine under Unix and passes some trivial tests I've now added. But the
8638 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8639 added to make sure no one expects that this stuff really works in the
8640 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8641 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8643 [Ralf S. Engelschall]
8645 *) Fix the generation of two part addresses in perl.
8646 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8648 *) Add config entry for Linux on MIPS.
8649 [John Tobey <jtobey@channel1.com>]
8651 *) Make links whenever Configure is run, unless we are on Windoze.
8654 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8655 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8659 *) Add a useful kludge to allow package maintainers to specify compiler and
8660 other platforms details on the command line without having to patch the
8661 Configure script everytime: One now can use ``perl Configure
8662 <id>:<details>'', i.e. platform ids are allowed to have details appended
8663 to them (seperated by colons). This is treated as there would be a static
8664 pre-configured entry in Configure's %table under key <id> with value
8665 <details> and ``perl Configure <id>'' is called. So, when you want to
8666 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8667 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8668 now, which overrides the FreeBSD-elf entry on-the-fly.
8669 [Ralf S. Engelschall]
8671 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8674 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8675 on the `perl Configure ...' command line. This way one can compile
8676 OpenSSL libraries with Position Independent Code (PIC) which is needed
8677 for linking it into DSOs.
8678 [Ralf S. Engelschall]
8680 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8684 *) Cleaned up the LICENSE document: The official contact for any license
8685 questions now is the OpenSSL core team under openssl-core@openssl.org.
8686 And add a paragraph about the dual-license situation to make sure people
8687 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8688 to the OpenSSL toolkit.
8689 [Ralf S. Engelschall]
8691 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8692 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8693 Additonally cleaned up the `make links' target: Remove unnecessary
8694 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8695 to speed processing and no longer clutter the display with confusing
8696 stuff. Instead only the actually done links are displayed.
8697 [Ralf S. Engelschall]
8699 *) Permit null encryption ciphersuites, used for authentication only. It used
8700 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8701 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8705 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8706 signed attributes when verifying signatures (this would break them),
8707 the detached data encoding was wrong and public keys obtained using
8708 X509_get_pubkey() weren't freed.
8711 *) Add text documentation for the BUFFER functions. Also added a work around
8712 to a Win95 console bug. This was triggered by the password read stuff: the
8713 last character typed gets carried over to the next fread(). If you were
8714 generating a new cert request using 'req' for example then the last
8715 character of the passphrase would be CR which would then enter the first
8719 *) Added the new `Includes OpenSSL Cryptography Software' button as
8720 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8721 button and can be used by applications based on OpenSSL to show the
8722 relationship to the OpenSSL project.
8723 [Ralf S. Engelschall]
8725 *) Remove confusing variables in function signatures in files
8726 ssl/ssl_lib.c and ssl/ssl.h.
8727 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8729 *) Don't install bss_file.c under PREFIX/include/
8730 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8732 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8733 functions that return function pointers and has support for NT specific
8734 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8735 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8736 unsigned to signed types: this was killing the Win32 compile.
8739 *) Add new certificate file to stack functions,
8740 SSL_add_dir_cert_subjects_to_stack() and
8741 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8742 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8743 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8744 This means that Apache-SSL and similar packages don't have to mess around
8745 to add as many CAs as they want to the preferred list.
8748 *) Experiment with doxygen documentation. Currently only partially applied to
8750 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8751 openssl.doxy as the configuration file.
8754 *) Get rid of remaining C++-style comments which strict C compilers hate.
8755 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8757 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8758 compiled in by default: it has problems with large keys.
8761 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8762 DH private keys and/or callback functions which directly correspond to
8763 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8764 is needed for applications which have to configure certificates on a
8765 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8767 For the RSA certificate situation is makes no difference, but
8768 for the DSA certificate situation this fixes the "no shared cipher"
8769 problem where the OpenSSL cipher selection procedure failed because the
8770 temporary keys were not overtaken from the context and the API provided
8771 no way to reconfigure them.
8772 The new functions now let applications reconfigure the stuff and they
8773 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8774 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8775 non-public-API function ssl_cert_instantiate() is used as a helper
8776 function and also to reduce code redundancy inside ssl_rsa.c.
8777 [Ralf S. Engelschall]
8779 *) Move s_server -dcert and -dkey options out of the undocumented feature
8780 area because they are useful for the DSA situation and should be
8781 recognized by the users.
8782 [Ralf S. Engelschall]
8784 *) Fix the cipher decision scheme for export ciphers: the export bits are
8785 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8786 SSL_EXP_MASK. So, the original variable has to be used instead of the
8787 already masked variable.
8788 [Richard Levitte <levitte@stacken.kth.se>]
8790 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8791 [Richard Levitte <levitte@stacken.kth.se>]
8793 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8794 from `int' to `unsigned int' because it's a length and initialized by
8795 EVP_DigestFinal() which expects an `unsigned int *'.
8796 [Richard Levitte <levitte@stacken.kth.se>]
8798 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8799 script. Instead use the usual Shell->Perl transition trick.
8800 [Ralf S. Engelschall]
8802 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8803 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8804 -noout -modulus' as it's already the case for `openssl rsa -noout
8805 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8806 currently the public key is printed (a decision which was already done by
8807 `openssl dsa -modulus' in the past) which serves a similar purpose.
8808 Additionally the NO_RSA no longer completely removes the whole -modulus
8809 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8811 [Ralf S. Engelschall]
8813 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8814 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8815 [Arne Ansper <arne@ats.cyber.ee>]
8817 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8818 to be added. Now both 'req' and 'ca' can use new objects defined in the
8822 *) Add cool BIO that does syslog (or event log on NT).
8823 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8825 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8826 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8827 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8828 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8831 *) Add preliminary config info for new extension code.
8834 *) Make RSA_NO_PADDING really use no padding.
8835 [Ulf Moeller <ulf@fitug.de>]
8837 *) Generate errors when private/public key check is done.
8840 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8841 for some CRL extensions and new objects added.
8844 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8845 key usage extension and fuller support for authority key id.
8848 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8849 padding method for RSA, which is recommended for new applications in PKCS
8850 #1 v2.0 (RFC 2437, October 1998).
8851 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8852 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8853 against Bleichbacher's attack on RSA.
8854 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8857 *) Updates to the new SSL compression code
8858 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8860 *) Fix so that the version number in the master secret, when passed
8861 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8862 (because the server will not accept higher), that the version number
8863 is 0x03,0x01, not 0x03,0x00
8864 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8866 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8867 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8868 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8871 *) Support for RAW extensions where an arbitrary extension can be
8872 created by including its DER encoding. See apps/openssl.cnf for
8876 *) Make sure latest Perl versions don't interpret some generated C array
8877 code as Perl array code in the crypto/err/err_genc.pl script.
8878 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8880 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8881 not many people have the assembler. Various Win32 compilation fixes and
8882 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8886 *) Modify configure script 'Configure' to automatically create crypto/date.h
8887 file under Win32 and also build pem.h from pem.org. New script
8888 util/mkfiles.pl to create the MINFO file on environments that can't do a
8889 'make files': perl util/mkfiles.pl >MINFO should work.
8892 *) Major rework of DES function declarations, in the pursuit of correctness
8893 and purity. As a result, many evil casts evaporated, and some weirdness,
8894 too. You may find this causes warnings in your code. Zapping your evil
8895 casts will probably fix them. Mostly.
8898 *) Fix for a typo in asn1.h. Bug fix to object creation script
8899 obj_dat.pl. It considered a zero in an object definition to mean
8900 "end of object": none of the objects in objects.h have any zeros
8901 so it wasn't spotted.
8902 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8904 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8905 Masking (CBCM). In the absence of test vectors, the best I have been able
8906 to do is check that the decrypt undoes the encrypt, so far. Send me test
8907 vectors if you have them.
8910 *) Correct calculation of key length for export ciphers (too much space was
8911 allocated for null ciphers). This has not been tested!
8914 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8915 message is now correct (it understands "crypto" and "ssl" on its
8916 command line). There is also now an "update" option. This will update
8917 the util/ssleay.num and util/libeay.num files with any new functions.
8919 perl util/mkdef.pl crypto ssl update
8920 it will update them.
8923 *) Overhauled the Perl interface (perl/*):
8924 - ported BN stuff to OpenSSL's different BN library
8925 - made the perl/ source tree CVS-aware
8926 - renamed the package from SSLeay to OpenSSL (the files still contain
8927 their history because I've copied them in the repository)
8928 - removed obsolete files (the test scripts will be replaced
8929 by better Test::Harness variants in the future)
8930 [Ralf S. Engelschall]
8932 *) First cut for a very conservative source tree cleanup:
8933 1. merge various obsolete readme texts into doc/ssleay.txt
8934 where we collect the old documents and readme texts.
8935 2. remove the first part of files where I'm already sure that we no
8936 longer need them because of three reasons: either they are just temporary
8937 files which were left by Eric or they are preserved original files where
8938 I've verified that the diff is also available in the CVS via "cvs diff
8939 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8940 the crypto/md/ stuff).
8941 [Ralf S. Engelschall]
8943 *) More extension code. Incomplete support for subject and issuer alt
8944 name, issuer and authority key id. Change the i2v function parameters
8945 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8946 what that's for :-) Fix to ASN1 macro which messed up
8947 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8950 *) Preliminary support for ENUMERATED type. This is largely copied from the
8954 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8955 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8957 *) Make sure `make rehash' target really finds the `openssl' program.
8958 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8960 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8961 like to hear about it if this slows down other processors.
8964 *) Add CygWin32 platform information to Configure script.
8965 [Alan Batie <batie@aahz.jf.intel.com>]
8967 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8968 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8970 *) New program nseq to manipulate netscape certificate sequences
8973 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8977 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8978 but the BN code had some problems that would cause failures when
8979 doing certificate verification and some other functions.
8980 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8982 *) Add ASN1 and PEM code to support netscape certificate sequences.
8985 *) Add ASN1 and PEM code to support netscape certificate sequences.
8988 *) Add several PKIX and private extended key usage OIDs.
8991 *) Modify the 'ca' program to handle the new extension code. Modify
8992 openssl.cnf for new extension format, add comments.
8995 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8996 and add a sample to openssl.cnf so req -x509 now adds appropriate
9000 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9001 error code, add initial support to X509_print() and x509 application.
9004 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9005 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9006 stuff is currently isolated and isn't even compiled yet.
9009 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9010 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9011 Removed the versions check from X509 routines when loading extensions:
9012 this allows certain broken certificates that don't set the version
9013 properly to be processed.
9016 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9017 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9018 can still be regenerated with "make depend".
9021 *) Spelling mistake in C version of CAST-128.
9022 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9024 *) Changes to the error generation code. The perl script err-code.pl
9025 now reads in the old error codes and retains the old numbers, only
9026 adding new ones if necessary. It also only changes the .err files if new
9027 codes are added. The makefiles have been modified to only insert errors
9028 when needed (to avoid needlessly modifying header files). This is done
9029 by only inserting errors if the .err file is newer than the auto generated
9030 C file. To rebuild all the error codes from scratch (the old behaviour)
9031 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9032 or delete all the .err files.
9035 *) CAST-128 was incorrectly implemented for short keys. The C version has
9036 been fixed, but is untested. The assembler versions are also fixed, but
9037 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9038 to regenerate it if needed.
9039 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9040 Hagino <itojun@kame.net>]
9042 *) File was opened incorrectly in randfile.c.
9043 [Ulf Möller <ulf@fitug.de>]
9045 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9046 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9047 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9048 al: it's just almost always a UTCTime. Note this patch adds new error
9049 codes so do a "make errors" if there are problems.
9052 *) Correct Linux 1 recognition in config.
9053 [Ulf Möller <ulf@fitug.de>]
9055 *) Remove pointless MD5 hash when using DSA keys in ca.
9056 [Anonymous <nobody@replay.com>]
9058 *) Generate an error if given an empty string as a cert directory. Also
9059 generate an error if handed NULL (previously returned 0 to indicate an
9060 error, but didn't set one).
9061 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9063 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9066 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9067 parameters. This was causing a warning which killed off the Win32 compile.
9070 *) Remove C++ style comments from crypto/bn/bn_local.h.
9071 [Neil Costigan <neil.costigan@celocom.com>]
9073 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9074 based on a text string, looking up short and long names and finally
9075 "dot" format. The "dot" format stuff didn't work. Added new function
9076 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9077 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9078 OID is not part of the table.
9081 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9082 X509_LOOKUP_by_alias().
9085 *) Sort openssl functions by name.
9088 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9089 encryption from sample DSA keys (in case anyone is interested the password
9093 *) Make _all_ *_free functions accept a NULL pointer.
9094 [Frans Heymans <fheymans@isaserver.be>]
9096 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9098 [Anonymous <nobody@replay.com>]
9100 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9101 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9103 *) Don't blow it for numeric -newkey arguments to apps/req.
9104 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9106 *) Temp key "for export" tests were wrong in s3_srvr.c.
9107 [Anonymous <nobody@replay.com>]
9109 *) Add prototype for temp key callback functions
9110 SSL_CTX_set_tmp_{rsa,dh}_callback().
9113 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9114 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9117 *) X509_name_add_entry() freed the wrong thing after an error.
9118 [Arne Ansper <arne@ats.cyber.ee>]
9120 *) rsa_eay.c would attempt to free a NULL context.
9121 [Arne Ansper <arne@ats.cyber.ee>]
9123 *) BIO_s_socket() had a broken should_retry() on Windoze.
9124 [Arne Ansper <arne@ats.cyber.ee>]
9126 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9127 [Arne Ansper <arne@ats.cyber.ee>]
9129 *) Make sure the already existing X509_STORE->depth variable is initialized
9130 in X509_STORE_new(), but document the fact that this variable is still
9131 unused in the certificate verification process.
9132 [Ralf S. Engelschall]
9134 *) Fix the various library and apps files to free up pkeys obtained from
9135 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9138 *) Fix reference counting in X509_PUBKEY_get(). This makes
9139 demos/maurice/example2.c work, amongst others, probably.
9140 [Steve Henson and Ben Laurie]
9142 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9143 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9144 are no longer created. This way we have a single and consistent command
9145 line interface `openssl <command>', similar to `cvs <command>'.
9146 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9148 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9149 BIT STRING wrapper always have zero unused bits.
9152 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9155 *) Make the top-level INSTALL documentation easier to understand.
9158 *) Makefiles updated to exit if an error occurs in a sub-directory
9159 make (including if user presses ^C) [Paul Sutton]
9161 *) Make Montgomery context stuff explicit in RSA data structure.
9164 *) Fix build order of pem and err to allow for generated pem.h.
9167 *) Fix renumbering bug in X509_NAME_delete_entry().
9170 *) Enhanced the err-ins.pl script so it makes the error library number
9171 global and can add a library name. This is needed for external ASN1 and
9172 other error libraries.
9175 *) Fixed sk_insert which never worked properly.
9178 *) Fix ASN1 macros so they can handle indefinite length construted
9179 EXPLICIT tags. Some non standard certificates use these: they can now
9183 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9184 into a single doc/ssleay.txt bundle. This way the information is still
9185 preserved but no longer messes up this directory. Now it's new room for
9186 the new set of documenation files.
9187 [Ralf S. Engelschall]
9189 *) SETs were incorrectly DER encoded. This was a major pain, because they
9190 shared code with SEQUENCEs, which aren't coded the same. This means that
9191 almost everything to do with SETs or SEQUENCEs has either changed name or
9192 number of arguments.
9193 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9195 *) Fix test data to work with the above.
9198 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9199 was already fixed by Eric for 0.9.1 it seems.
9200 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9202 *) Autodetect FreeBSD3.
9205 *) Fix various bugs in Configure. This affects the following platforms:
9209 unixware-2.0-pentium
9213 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9214 before they are needed.
9217 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9221 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9223 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9224 changed SSLeay to OpenSSL in version strings.
9225 [Ralf S. Engelschall]
9227 *) Some fixups to the top-level documents.
9230 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9231 because the symlink to include/ was missing.
9232 [Ralf S. Engelschall]
9234 *) Incorporated the popular no-RSA/DSA-only patches
9235 which allow to compile a RSA-free SSLeay.
9236 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9238 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9239 when "ssleay" is still not found.
9240 [Ralf S. Engelschall]
9242 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9243 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9245 *) Updated the README file.
9246 [Ralf S. Engelschall]
9248 *) Added various .cvsignore files in the CVS repository subdirs
9249 to make a "cvs update" really silent.
9250 [Ralf S. Engelschall]
9252 *) Recompiled the error-definition header files and added
9253 missing symbols to the Win32 linker tables.
9254 [Ralf S. Engelschall]
9256 *) Cleaned up the top-level documents;
9257 o new files: CHANGES and LICENSE
9258 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9259 o merged COPYRIGHT into LICENSE
9260 o removed obsolete TODO file
9261 o renamed MICROSOFT to INSTALL.W32
9262 [Ralf S. Engelschall]
9264 *) Removed dummy files from the 0.9.1b source tree:
9265 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9266 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9267 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9268 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9269 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9270 [Ralf S. Engelschall]
9272 *) Added various platform portability fixes.
9275 *) The Genesis of the OpenSSL rpject:
9276 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9277 Young and Tim J. Hudson created while they were working for C2Net until
9279 [The OpenSSL Project]
9282 Changes between 0.9.0b and 0.9.1b [not released]
9284 *) Updated a few CA certificates under certs/
9287 *) Changed some BIGNUM api stuff.
9290 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9291 DGUX x86, Linux Alpha, etc.
9294 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9295 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9299 *) Add -strparse option to asn1pars program which parses nested
9301 [Dr Stephen Henson <shenson@bigfoot.com>]
9303 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9306 *) DSA fix for "ca" program.
9309 *) Added "-genkey" option to "dsaparam" program.
9312 *) Added RIPE MD160 (rmd160) message digest.
9315 *) Added -a (all) option to "ssleay version" command.
9318 *) Added PLATFORM define which is the id given to Configure.
9321 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9324 *) Extended the ASN.1 parser routines.
9327 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9330 *) Added a BN_CTX to the BN library.
9333 *) Fixed the weak key values in DES library
9336 *) Changed API in EVP library for cipher aliases.
9339 *) Added support for RC2/64bit cipher.
9342 *) Converted the lhash library to the crypto/mem.c functions.
9345 *) Added more recognized ASN.1 object ids.
9348 *) Added more RSA padding checks for SSL/TLS.
9351 *) Added BIO proxy/filter functionality.
9354 *) Added extra_certs to SSL_CTX which can be used
9355 send extra CA certificates to the client in the CA cert chain sending
9356 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9359 *) Now Fortezza is denied in the authentication phase because
9360 this is key exchange mechanism is not supported by SSLeay at all.
9363 *) Additional PKCS1 checks.
9366 *) Support the string "TLSv1" for all TLS v1 ciphers.
9369 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9370 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9373 *) Fixed a few memory leaks.
9376 *) Fixed various code and comment typos.
9379 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9380 bytes sent in the client random.
9381 [Edward Bishop <ebishop@spyglass.com>]