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Diffstat (limited to 'crypto/openssl/CHANGES')
| -rw-r--r-- | crypto/openssl/CHANGES | 4336 |
1 files changed, 0 insertions, 4336 deletions
diff --git a/crypto/openssl/CHANGES b/crypto/openssl/CHANGES deleted file mode 100644 index be4d128b834a..000000000000 --- a/crypto/openssl/CHANGES +++ /dev/null @@ -1,4336 +0,0 @@ - - OpenSSL CHANGES - _______________ - - Changes between 0.9.6d and 0.9.6e [30 Jul 2002] - - *) Fix cipher selection routines: ciphers without encryption had no flags - for the cipher strength set and where therefore not handled correctly - by the selection routines (PR #130). - [Lutz Jaenicke] - - *) Fix EVP_dsa_sha macro. - [Nils Larsch] - - *) New option - SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS - for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure - that was added in OpenSSL 0.9.6d. - - As the countermeasure turned out to be incompatible with some - broken SSL implementations, the new option is part of SSL_OP_ALL. - SSL_OP_ALL is usually employed when compatibility with weird SSL - implementations is desired (e.g. '-bugs' option to 's_client' and - 's_server'), so the new option is automatically set in many - applications. - [Bodo Moeller] - - *) Changes in security patch: - - Changes marked "(CHATS)" were sponsored by the Defense Advanced - Research Projects Agency (DARPA) and Air Force Research Laboratory, - Air Force Materiel Command, USAF, under agreement number - F30602-01-2-0537. - - *) Add various sanity checks to asn1_get_length() to reject - the ASN1 length bytes if they exceed sizeof(long), will appear - negative or the content length exceeds the length of the - supplied buffer. - [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] - - *) Assertions for various potential buffer overflows, not known to - happen in practice. - [Ben Laurie (CHATS)] - - *) Various temporary buffers to hold ASCII versions of integers were - too small for 64 bit platforms. (CAN-2002-0655) - [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> - - *) Remote buffer overflow in SSL3 protocol - an attacker could - supply an oversized session ID to a client. (CAN-2002-0656) - [Ben Laurie (CHATS)] - - *) Remote buffer overflow in SSL2 protocol - an attacker could - supply an oversized client master key. (CAN-2002-0656) - [Ben Laurie (CHATS)] - - Changes between 0.9.6c and 0.9.6d [9 May 2002] - - *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not - encoded as NULL) with id-dsa-with-sha1. - [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] - - *) Check various X509_...() return values in apps/req.c. - [Nils Larsch <nla@trustcenter.de>] - - *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: - an end-of-file condition would erronously be flagged, when the CRLF - was just at the end of a processed block. The bug was discovered when - processing data through a buffering memory BIO handing the data to a - BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov - <ptsekov@syntrex.com> and Nedelcho Stanev. - [Lutz Jaenicke] - - *) Implement a countermeasure against a vulnerability recently found - in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment - before application data chunks to avoid the use of known IVs - with data potentially chosen by the attacker. - [Bodo Moeller] - - *) Fix length checks in ssl3_get_client_hello(). - [Bodo Moeller] - - *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently - to prevent ssl3_read_internal() from incorrectly assuming that - ssl3_read_bytes() found application data while handshake - processing was enabled when in fact s->s3->in_read_app_data was - merely automatically cleared during the initial handshake. - [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] - - *) Fix object definitions for Private and Enterprise: they were not - recognized in their shortname (=lowercase) representation. Extend - obj_dat.pl to issue an error when using undefined keywords instead - of silently ignoring the problem (Svenning Sorensen - <sss@sss.dnsalias.net>). - [Lutz Jaenicke] - - *) Fix DH_generate_parameters() so that it works for 'non-standard' - generators, i.e. generators other than 2 and 5. (Previously, the - code did not properly initialise the 'add' and 'rem' values to - BN_generate_prime().) - - In the new general case, we do not insist that 'generator' is - actually a primitive root: This requirement is rather pointless; - a generator of the order-q subgroup is just as good, if not - better. - [Bodo Moeller] - - *) Map new X509 verification errors to alerts. Discovered and submitted by - Tom Wu <tom@arcot.com>. - [Lutz Jaenicke] - - *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from - returning non-zero before the data has been completely received - when using non-blocking I/O. - [Bodo Moeller; problem pointed out by John Hughes] - - *) Some of the ciphers missed the strength entry (SSL_LOW etc). - [Ben Laurie, Lutz Jaenicke] - - *) Fix bug in SSL_clear(): bad sessions were not removed (found by - Yoram Zahavi <YoramZ@gilian.com>). - [Lutz Jaenicke] - - *) Add information about CygWin 1.3 and on, and preserve proper - configuration for the versions before that. - [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] - - *) Make removal from session cache (SSL_CTX_remove_session()) more robust: - check whether we deal with a copy of a session and do not delete from - the cache in this case. Problem reported by "Izhar Shoshani Levi" - <izhar@checkpoint.com>. - [Lutz Jaenicke] - - *) Do not store session data into the internal session cache, if it - is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP - flag is set). Proposed by Aslam <aslam@funk.com>. - [Lutz Jaenicke] - - *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested - value is 0. - [Richard Levitte] - - *) [In 0.9.6c-engine release:] - Fix a crashbug and a logic bug in hwcrhk_load_pubkey() - [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] - - *) Add the configuration target linux-s390x. - [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] - - *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of - ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag - variable as an indication that a ClientHello message has been - received. As the flag value will be lost between multiple - invocations of ssl3_accept when using non-blocking I/O, the - function may not be aware that a handshake has actually taken - place, thus preventing a new session from being added to the - session cache. - - To avoid this problem, we now set s->new_session to 2 instead of - using a local variable. - [Lutz Jaenicke, Bodo Moeller] - - *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) - if the SSL_R_LENGTH_MISMATCH error is detected. - [Geoff Thorpe, Bodo Moeller] - - *) New 'shared_ldflag' column in Configure platform table. - [Richard Levitte] - - *) Fix EVP_CIPHER_mode macro. - ["Dan S. Camper" <dan@bti.net>] - - *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown - type, we must throw them away by setting rr->length to 0. - [D P Chang <dpc@qualys.com>] - - Changes between 0.9.6b and 0.9.6c [21 dec 2001] - - *) Fix BN_rand_range bug pointed out by Dominikus Scherkl - <Dominikus.Scherkl@biodata.com>. (The previous implementation - worked incorrectly for those cases where range = 10..._2 and - 3*range is two bits longer than range.) - [Bodo Moeller] - - *) Only add signing time to PKCS7 structures if it is not already - present. - [Steve Henson] - - *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", - OBJ_ld_ce should be OBJ_id_ce. - Also some ip-pda OIDs in crypto/objects/objects.txt were - incorrect (cf. RFC 3039). - [Matt Cooper, Frederic Giudicelli, Bodo Moeller] - - *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() - returns early because it has nothing to do. - [Andy Schneider <andy.schneider@bjss.co.uk>] - - *) [In 0.9.6c-engine release:] - Fix mutex callback return values in crypto/engine/hw_ncipher.c. - [Andy Schneider <andy.schneider@bjss.co.uk>] - - *) [In 0.9.6c-engine release:] - Add support for Cryptographic Appliance's keyserver technology. - (Use engine 'keyclient') - [Cryptographic Appliances and Geoff Thorpe] - - *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' - is called via tools/c89.sh because arguments have to be - rearranged (all '-L' options must appear before the first object - modules). - [Richard Shapiro <rshapiro@abinitio.com>] - - *) [In 0.9.6c-engine release:] - Add support for Broadcom crypto accelerator cards, backported - from 0.9.7. - [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] - - *) [In 0.9.6c-engine release:] - Add support for SureWare crypto accelerator cards from - Baltimore Technologies. (Use engine 'sureware') - [Baltimore Technologies and Mark Cox] - - *) [In 0.9.6c-engine release:] - Add support for crypto accelerator cards from Accelerated - Encryption Processing, www.aep.ie. (Use engine 'aep') - [AEP Inc. and Mark Cox] - - *) Add a configuration entry for gcc on UnixWare. - [Gary Benson <gbenson@redhat.com>] - - *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake - messages are stored in a single piece (fixed-length part and - variable-length part combined) and fix various bugs found on the way. - [Bodo Moeller] - - *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() - instead. BIO_gethostbyname() does not know what timeouts are - appropriate, so entries would stay in cache even when they have - become invalid. - [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> - - *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when - faced with a pathologically small ClientHello fragment that does - not contain client_version: Instead of aborting with an error, - simply choose the highest available protocol version (i.e., - TLS 1.0 unless it is disabled). In practice, ClientHello - messages are never sent like this, but this change gives us - strictly correct behaviour at least for TLS. - [Bodo Moeller] - - *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() - never resets s->method to s->ctx->method when called from within - one of the SSL handshake functions. - [Bodo Moeller; problem pointed out by Niko Baric] - - *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert - (sent using the client's version number) if client_version is - smaller than the protocol version in use. Also change - ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if - the client demanded SSL 3.0 but only TLS 1.0 is enabled; then - the client will at least see that alert. - [Bodo Moeller] - - *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation - correctly. - [Bodo Moeller] - - *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a - client receives HelloRequest while in a handshake. - [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] - - *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C - should end in 'break', not 'goto end' which circuments various - cleanups done in state SSL_ST_OK. But session related stuff - must be disabled for SSL_ST_OK in the case that we just sent a - HelloRequest. - - Also avoid some overhead by not calling ssl_init_wbio_buffer() - before just sending a HelloRequest. - [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] - - *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't - reveal whether illegal block cipher padding was found or a MAC - verification error occured. (Neither SSLerr() codes nor alerts - are directly visible to potential attackers, but the information - may leak via logfiles.) - - Similar changes are not required for the SSL 2.0 implementation - because the number of padding bytes is sent in clear for SSL 2.0, - and the extra bytes are just ignored. However ssl/s2_pkt.c - failed to verify that the purported number of padding bytes is in - the legal range. - [Bodo Moeller] - - *) Add OpenUNIX-8 support including shared libraries - (Boyd Lynn Gerber <gerberb@zenez.com>). - [Lutz Jaenicke] - - *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid - 'wristwatch attack' using huge encoding parameters (cf. - James H. Manger's CRYPTO 2001 paper). Note that the - RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use - encoding parameters and hence was not vulnerable. - [Bodo Moeller] - - *) BN_sqr() bug fix. - [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>] - - *) Rabin-Miller test analyses assume uniformly distributed witnesses, - so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() - followed by modular reduction. - [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] - - *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() - equivalent based on BN_pseudo_rand() instead of BN_rand(). - [Bodo Moeller] - - *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). - This function was broken, as the check for a new client hello message - to handle SGC did not allow these large messages. - (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) - [Lutz Jaenicke] - - *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). - [Lutz Jaenicke] - - *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() - for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). - [Lutz Jaenicke] - - *) Rework the configuration and shared library support for Tru64 Unix. - The configuration part makes use of modern compiler features and - still retains old compiler behavior for those that run older versions - of the OS. The shared library support part includes a variant that - uses the RPATH feature, and is available through the special - configuration target "alpha-cc-rpath", which will never be selected - automatically. - [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] - - *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() - with the same message size as in ssl3_get_certificate_request(). - Otherwise, if no ServerKeyExchange message occurs, CertificateRequest - messages might inadvertently be reject as too long. - [Petr Lampa <lampa@fee.vutbr.cz>] - - *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). - [Andy Polyakov] - - *) Modified SSL library such that the verify_callback that has been set - specificly for an SSL object with SSL_set_verify() is actually being - used. Before the change, a verify_callback set with this function was - ignored and the verify_callback() set in the SSL_CTX at the time of - the call was used. New function X509_STORE_CTX_set_verify_cb() introduced - to allow the necessary settings. - [Lutz Jaenicke] - - *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c - explicitly to NULL, as at least on Solaris 8 this seems not always to be - done automatically (in contradiction to the requirements of the C - standard). This made problems when used from OpenSSH. - [Lutz Jaenicke] - - *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored - dh->length and always used - - BN_rand_range(priv_key, dh->p). - - BN_rand_range() is not necessary for Diffie-Hellman, and this - specific range makes Diffie-Hellman unnecessarily inefficient if - dh->length (recommended exponent length) is much smaller than the - length of dh->p. We could use BN_rand_range() if the order of - the subgroup was stored in the DH structure, but we only have - dh->length. - - So switch back to - - BN_rand(priv_key, l, ...) - - where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 - otherwise. - [Bodo Moeller] - - *) In - - RSA_eay_public_encrypt - RSA_eay_private_decrypt - RSA_eay_private_encrypt (signing) - RSA_eay_public_decrypt (signature verification) - - (default implementations for RSA_public_encrypt, - RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), - always reject numbers >= n. - [Bodo Moeller] - - *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 - to synchronize access to 'locking_thread'. This is necessary on - systems where access to 'locking_thread' (an 'unsigned long' - variable) is not atomic. - [Bodo Moeller] - - *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID - *before* setting the 'crypto_lock_rand' flag. The previous code had - a race condition if 0 is a valid thread ID. - [Travis Vitek <vitek@roguewave.com>] - - *) Add support for shared libraries under Irix. - [Albert Chin-A-Young <china@thewrittenword.com>] - - *) Add configuration option to build on Linux on both big-endian and - little-endian MIPS. - [Ralf Baechle <ralf@uni-koblenz.de>] - - *) Add the possibility to create shared libraries on HP-UX. - [Richard Levitte] - - Changes between 0.9.6a and 0.9.6b [9 Jul 2001] - - *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) - to avoid a SSLeay/OpenSSL PRNG weakness pointed out by - Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: - PRNG state recovery was possible based on the output of - one PRNG request appropriately sized to gain knowledge on - 'md' followed by enough consecutive 1-byte PRNG requests - to traverse all of 'state'. - - 1. When updating 'md_local' (the current thread's copy of 'md') - during PRNG output generation, hash all of the previous - 'md_local' value, not just the half used for PRNG output. - - 2. Make the number of bytes from 'state' included into the hash - independent from the number of PRNG bytes requested. - - The first measure alone would be sufficient to avoid - Markku-Juhani's attack. (Actually it had never occurred - to me that the half of 'md_local' used for chaining was the - half from which PRNG output bytes were taken -- I had always - assumed that the secret half would be used.) The second - measure makes sure that additional data from 'state' is never - mixed into 'md_local' in small portions; this heuristically - further strengthens the PRNG. - [Bodo Moeller] - - *) Fix crypto/bn/asm/mips3.s. - [Andy Polyakov] - - *) When only the key is given to "enc", the IV is undefined. Print out - an error message in this case. - [Lutz Jaenicke] - - *) Handle special case when X509_NAME is empty in X509 printing routines. - [Steve Henson] - - *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are - positive and less than q. - [Bodo Moeller] - - *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is - used: it isn't thread safe and the add_lock_callback should handle - that itself. - [Paul Rose <Paul.Rose@bridge.com>] - - *) Verify that incoming data obeys the block size in - ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). - [Bodo Moeller] - - *) Fix OAEP check. - [Ulf Möller, Bodo Möller] - - *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 - RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 - when fixing the server behaviour for backwards-compatible 'client - hello' messages. (Note that the attack is impractical against - SSL 3.0 and TLS 1.0 anyway because length and version checking - means that the probability of guessing a valid ciphertext is - around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 - paper.) - - Before 0.9.5, the countermeasure (hide the error by generating a - random 'decryption result') did not work properly because - ERR_clear_error() was missing, meaning that SSL_get_error() would - detect the supposedly ignored error. - - Both problems are now fixed. - [Bodo Moeller] - - *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 - (previously it was 1024). - [Bodo Moeller] - - *) Fix for compatibility mode trust settings: ignore trust settings - unless some valid trust or reject settings are present. - [Steve Henson] - - *) Fix for blowfish EVP: its a variable length cipher. - [Steve Henson] - - *) Fix various bugs related to DSA S/MIME verification. Handle missing - parameters in DSA public key structures and return an error in the - DSA routines if parameters are absent. - [Steve Henson] - - *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" - in the current directory if neither $RANDFILE nor $HOME was set. - RAND_file_name() in 0.9.6a returned NULL in this case. This has - caused some confusion to Windows users who haven't defined $HOME. - Thus RAND_file_name() is changed again: e_os.h can define a - DEFAULT_HOME, which will be used if $HOME is not set. - For Windows, we use "C:"; on other platforms, we still require - environment variables. - - *) Move 'if (!initialized) RAND_poll()' into regions protected by - CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids - having multiple threads call RAND_poll() concurrently. - [Bodo Moeller] - - *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a - combination of a flag and a thread ID variable. - Otherwise while one thread is in ssleay_rand_bytes (which sets the - flag), *other* threads can enter ssleay_add_bytes without obeying - the CRYPTO_LOCK_RAND lock (and may even illegally release the lock - that they do not hold after the first thread unsets add_do_not_lock). - [Bodo Moeller] - - *) Change bctest again: '-x' expressions are not available in all - versions of 'test'. - [Bodo Moeller] - - Changes between 0.9.6 and 0.9.6a [5 Apr 2001] - - *) Fix a couple of memory leaks in PKCS7_dataDecode() - [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] - - *) Change Configure and Makefiles to provide EXE_EXT, which will contain - the default extension for executables, if any. Also, make the perl - scripts that use symlink() to test if it really exists and use "cp" - if it doesn't. All this made OpenSSL compilable and installable in - CygWin. - [Richard Levitte] - - *) Fix for asn1_GetSequence() for indefinite length constructed data. - If SEQUENCE is length is indefinite just set c->slen to the total - amount of data available. - [Steve Henson, reported by shige@FreeBSD.org] - [This change does not apply to 0.9.7.] - - *) Change bctest to avoid here-documents inside command substitution - (workaround for FreeBSD /bin/sh bug). - For compatibility with Ultrix, avoid shell functions (introduced - in the bctest version that searches along $PATH). - [Bodo Moeller] - - *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes - with des_encrypt() defined on some operating systems, like Solaris - and UnixWare. - [Richard Levitte] - - *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: - On the Importance of Eliminating Errors in Cryptographic - Computations, J. Cryptology 14 (2001) 2, 101-119, - http://theory.stanford.edu/~dabo/papers/faults.ps.gz). - [Ulf Moeller] - - *) MIPS assembler BIGNUM division bug fix. - [Andy Polyakov] - - *) Disabled incorrect Alpha assembler code. - [Richard Levitte] - - *) Fix PKCS#7 decode routines so they correctly update the length - after reading an EOC for the EXPLICIT tag. - [Steve Henson] - [This change does not apply to 0.9.7.] - - *) Fix bug in PKCS#12 key generation routines. This was triggered - if a 3DES key was generated with a 0 initial byte. Include - PKCS12_BROKEN_KEYGEN compilation option to retain the old - (but broken) behaviour. - [Steve Henson] - - *) Enhance bctest to search for a working bc along $PATH and print - it when found. - [Tim Rice <tim@multitalents.net> via Richard Levitte] - - *) Fix memory leaks in err.c: free err_data string if necessary; - don't write to the wrong index in ERR_set_error_data. - [Bodo Moeller] - - *) Implement ssl23_peek (analogous to ssl23_read), which previously - did not exist. - [Bodo Moeller] - - *) Replace rdtsc with _emit statements for VC++ version 5. - [Jeremy Cooper <jeremy@baymoo.org>] - - *) Make it possible to reuse SSLv2 sessions. - [Richard Levitte] - - *) In copy_email() check for >= 0 as a return value for - X509_NAME_get_index_by_NID() since 0 is a valid index. - [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] - - *) Avoid coredump with unsupported or invalid public keys by checking if - X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when - PKCS7_verify() fails with non detached data. - [Steve Henson] - - *) Don't use getenv in library functions when run as setuid/setgid. - New function OPENSSL_issetugid(). - [Ulf Moeller] - - *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) - due to incorrect handling of multi-threading: - - 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). - - 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). - - 3. Count how many times MemCheck_off() has been called so that - nested use can be treated correctly. This also avoids - inband-signalling in the previous code (which relied on the - assumption that thread ID 0 is impossible). - [Bodo Moeller] - - *) Add "-rand" option also to s_client and s_server. - [Lutz Jaenicke] - - *) Fix CPU detection on Irix 6.x. - [Kurt Hockenbury <khockenb@stevens-tech.edu> and - "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] - - *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME - was empty. - [Steve Henson] - [This change does not apply to 0.9.7.] - - *) Use the cached encoding of an X509_NAME structure rather than - copying it. This is apparently the reason for the libsafe "errors" - but the code is actually correct. - [Steve Henson] - - *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent - Bleichenbacher's DSA attack. - Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits - to be set and top=0 forces the highest bit to be set; top=-1 is new - and leaves the highest bit random. - [Ulf Moeller, Bodo Moeller] - - *) In the NCONF_...-based implementations for CONF_... queries - (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using - a temporary CONF structure with the data component set to NULL - (which gives segmentation faults in lh_retrieve). - Instead, use NULL for the CONF pointer in CONF_get_string and - CONF_get_number (which may use environment variables) and directly - return NULL from CONF_get_section. - [Bodo Moeller] - - *) Fix potential buffer overrun for EBCDIC. - [Ulf Moeller] - - *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign - keyUsage if basicConstraints absent for a CA. - [Steve Henson] - - *) Make SMIME_write_PKCS7() write mail header values with a format that - is more generally accepted (no spaces before the semicolon), since - some programs can't parse those values properly otherwise. Also make - sure BIO's that break lines after each write do not create invalid - headers. - [Richard Levitte] - - *) Make the CRL encoding routines work with empty SEQUENCE OF. The - macros previously used would not encode an empty SEQUENCE OF - and break the signature. - [Steve Henson] - [This change does not apply to 0.9.7.] - - *) Zero the premaster secret after deriving the master secret in - DH ciphersuites. - [Steve Henson] - - *) Add some EVP_add_digest_alias registrations (as found in - OpenSSL_add_all_digests()) to SSL_library_init() - aka OpenSSL_add_ssl_algorithms(). This provides improved - compatibility with peers using X.509 certificates - with unconventional AlgorithmIdentifier OIDs. - [Bodo Moeller] - - *) Fix for Irix with NO_ASM. - ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] - - *) ./config script fixes. - [Ulf Moeller, Richard Levitte] - - *) Fix 'openssl passwd -1'. - [Bodo Moeller] - - *) Change PKCS12_key_gen_asc() so it can cope with non null - terminated strings whose length is passed in the passlen - parameter, for example from PEM callbacks. This was done - by adding an extra length parameter to asc2uni(). - [Steve Henson, reported by <oddissey@samsung.co.kr>] - - *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn - call failed, free the DSA structure. - [Bodo Moeller] - - *) Fix to uni2asc() to cope with zero length Unicode strings. - These are present in some PKCS#12 files. - [Steve Henson] - - *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). - Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits - when writing a 32767 byte record. - [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] - - *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), - obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. - - (RSA objects have a reference count access to which is protected - by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], - so they are meant to be shared between threads.) - [Bodo Moeller, Geoff Thorpe; original patch submitted by - "Reddie, Steven" <Steven.Reddie@ca.com>] - - *) Fix a deadlock in CRYPTO_mem_leaks(). - [Bodo Moeller] - - *) Use better test patterns in bntest. - [Ulf Möller] - - *) rand_win.c fix for Borland C. - [Ulf Möller] - - *) BN_rshift bugfix for n == 0. - [Bodo Moeller] - - *) Add a 'bctest' script that checks for some known 'bc' bugs - so that 'make test' does not abort just because 'bc' is broken. - [Bodo Moeller] - - *) Store verify_result within SSL_SESSION also for client side to - avoid potential security hole. (Re-used sessions on the client side - always resulted in verify_result==X509_V_OK, not using the original - result of the server certificate verification.) - [Lutz Jaenicke] - - *) Fix ssl3_pending: If the record in s->s3->rrec is not of type - SSL3_RT_APPLICATION_DATA, return 0. - Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. - [Bodo Moeller] - - *) Fix SSL_peek: - Both ssl2_peek and ssl3_peek, which were totally broken in earlier - releases, have been re-implemented by renaming the previous - implementations of ssl2_read and ssl3_read to ssl2_read_internal - and ssl3_read_internal, respectively, and adding 'peek' parameters - to them. The new ssl[23]_{read,peek} functions are calls to - ssl[23]_read_internal with the 'peek' flag set appropriately. - A 'peek' parameter has also been added to ssl3_read_bytes, which - does the actual work for ssl3_read_internal. - [Bodo Moeller] - - *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling - the method-specific "init()" handler. Also clean up ex_data after - calling the method-specific "finish()" handler. Previously, this was - happening the other way round. - [Geoff Thorpe] - - *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. - The previous value, 12, was not always sufficient for BN_mod_exp(). - [Bodo Moeller] - - *) Make sure that shared libraries get the internal name engine with - the full version number and not just 0. This should mark the - shared libraries as not backward compatible. Of course, this should - be changed again when we can guarantee backward binary compatibility. - [Richard Levitte] - - *) Fix typo in get_cert_by_subject() in by_dir.c - [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] - - *) Rework the system to generate shared libraries: - - - Make note of the expected extension for the shared libraries and - if there is a need for symbolic links from for example libcrypto.so.0 - to libcrypto.so.0.9.7. There is extended info in Configure for - that. - - - Make as few rebuilds of the shared libraries as possible. - - - Still avoid linking the OpenSSL programs with the shared libraries. - - - When installing, install the shared libraries separately from the - static ones. - [Richard Levitte] - - *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. - - Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new - and not in SSL_clear because the latter is also used by the - accept/connect functions; previously, the settings made by - SSL_set_read_ahead would be lost during the handshake. - [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] - - *) Correct util/mkdef.pl to be selective about disabled algorithms. - Previously, it would create entries for disableed algorithms no - matter what. - [Richard Levitte] - - *) Added several new manual pages for SSL_* function. - [Lutz Jaenicke] - - Changes between 0.9.5a and 0.9.6 [24 Sep 2000] - - *) In ssl23_get_client_hello, generate an error message when faced - with an initial SSL 3.0/TLS record that is too small to contain the - first two bytes of the ClientHello message, i.e. client_version. - (Note that this is a pathologic case that probably has never happened - in real life.) The previous approach was to use the version number - from the record header as a substitute; but our protocol choice - should not depend on that one because it is not authenticated - by the Finished messages. - [Bodo Moeller] - - *) More robust randomness gathering functions for Windows. - [Jeffrey Altman <jaltman@columbia.edu>] - - *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is - not set then we don't setup the error code for issuer check errors - to avoid possibly overwriting other errors which the callback does - handle. If an application does set the flag then we assume it knows - what it is doing and can handle the new informational codes - appropriately. - [Steve Henson] - - *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for - a general "ANY" type, as such it should be able to decode anything - including tagged types. However it didn't check the class so it would - wrongly interpret tagged types in the same way as their universal - counterpart and unknown types were just rejected. Changed so that the - tagged and unknown types are handled in the same way as a SEQUENCE: - that is the encoding is stored intact. There is also a new type - "V_ASN1_OTHER" which is used when the class is not universal, in this - case we have no idea what the actual type is so we just lump them all - together. - [Steve Henson] - - *) On VMS, stdout may very well lead to a file that is written to - in a record-oriented fashion. That means that every write() will - write a separate record, which will be read separately by the - programs trying to read from it. This can be very confusing. - - The solution is to put a BIO filter in the way that will buffer - text until a linefeed is reached, and then write everything a - line at a time, so every record written will be an actual line, - not chunks of lines and not (usually doesn't happen, but I've - seen it once) several lines in one record. BIO_f_linebuffer() is - the answer. - - Currently, it's a VMS-only method, because that's where it has - been tested well enough. - [Richard Levitte] - - *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, - it can return incorrect results. - (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, - but it was in 0.9.6-beta[12].) - [Bodo Moeller] - - *) Disable the check for content being present when verifying detached - signatures in pk7_smime.c. Some versions of Netscape (wrongly) - include zero length content when signing messages. - [Steve Henson] - - *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR - BIO_ctrl (for BIO pairs). - [Bodo Möller] - - *) Add DSO method for VMS. - [Richard Levitte] - - *) Bug fix: Montgomery multiplication could produce results with the - wrong sign. - [Ulf Möller] - - *) Add RPM specification openssl.spec and modify it to build three - packages. The default package contains applications, application - documentation and run-time libraries. The devel package contains - include files, static libraries and function documentation. The - doc package contains the contents of the doc directory. The original - openssl.spec was provided by Damien Miller <djm@mindrot.org>. - [Richard Levitte] - - *) Add a large number of documentation files for many SSL routines. - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] - - *) Add a configuration entry for Sony News 4. - [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] - - *) Don't set the two most significant bits to one when generating a - random number < q in the DSA library. - [Ulf Möller] - - *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default - behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if - the underlying transport is blocking) if a handshake took place. - (The default behaviour is needed by applications such as s_client - and s_server that use select() to determine when to use SSL_read; - but for applications that know in advance when to expect data, it - just makes things more complicated.) - [Bodo Moeller] - - *) Add RAND_egd_bytes(), which gives control over the number of bytes read - from EGD. - [Ben Laurie] - - *) Add a few more EBCDIC conditionals that make `req' and `x509' - work better on such systems. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Add two demo programs for PKCS12_parse() and PKCS12_create(). - Update PKCS12_parse() so it copies the friendlyName and the - keyid to the certificates aux info. - [Steve Henson] - - *) Fix bug in PKCS7_verify() which caused an infinite loop - if there was more than one signature. - [Sven Uszpelkat <su@celocom.de>] - - *) Major change in util/mkdef.pl to include extra information - about each symbol, as well as presentig variables as well - as functions. This change means that there's n more need - to rebuild the .num files when some algorithms are excluded. - [Richard Levitte] - - *) Allow the verify time to be set by an application, - rather than always using the current time. - [Steve Henson] - - *) Phase 2 verify code reorganisation. The certificate - verify code now looks up an issuer certificate by a - number of criteria: subject name, authority key id - and key usage. It also verifies self signed certificates - by the same criteria. The main comparison function is - X509_check_issued() which performs these checks. - - Lot of changes were necessary in order to support this - without completely rewriting the lookup code. - - Authority and subject key identifier are now cached. - - The LHASH 'certs' is X509_STORE has now been replaced - by a STACK_OF(X509_OBJECT). This is mainly because an - LHASH can't store or retrieve multiple objects with - the same hash value. - - As a result various functions (which were all internal - use only) have changed to handle the new X509_STORE - structure. This will break anything that messed round - with X509_STORE internally. - - The functions X509_STORE_add_cert() now checks for an - exact match, rather than just subject name. - - The X509_STORE API doesn't directly support the retrieval - of multiple certificates matching a given criteria, however - this can be worked round by performing a lookup first - (which will fill the cache with candidate certificates) - and then examining the cache for matches. This is probably - the best we can do without throwing out X509_LOOKUP - entirely (maybe later...). - - The X509_VERIFY_CTX structure has been enhanced considerably. - - All certificate lookup operations now go via a get_issuer() - callback. Although this currently uses an X509_STORE it - can be replaced by custom lookups. This is a simple way - to bypass the X509_STORE hackery necessary to make this - work and makes it possible to use more efficient techniques - in future. A very simple version which uses a simple - STACK for its trusted certificate store is also provided - using X509_STORE_CTX_trusted_stack(). - - The verify_cb() and verify() callbacks now have equivalents - in the X509_STORE_CTX structure. - - X509_STORE_CTX also has a 'flags' field which can be used - to customise the verify behaviour. - [Steve Henson] - - *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which - excludes S/MIME capabilities. - [Steve Henson] - - *) When a certificate request is read in keep a copy of the - original encoding of the signed data and use it when outputing - again. Signatures then use the original encoding rather than - a decoded, encoded version which may cause problems if the - request is improperly encoded. - [Steve Henson] - - *) For consistency with other BIO_puts implementations, call - buffer_write(b, ...) directly in buffer_puts instead of calling - BIO_write(b, ...). - - In BIO_puts, increment b->num_write as in BIO_write. - [Peter.Sylvester@EdelWeb.fr] - - *) Fix BN_mul_word for the case where the word is 0. (We have to use - BN_zero, we may not return a BIGNUM with an array consisting of - words set to zero.) - [Bodo Moeller] - - *) Avoid calling abort() from within the library when problems are - detected, except if preprocessor symbols have been defined - (such as REF_CHECK, BN_DEBUG etc.). - [Bodo Moeller] - - *) New openssl application 'rsautl'. This utility can be - used for low level RSA operations. DER public key - BIO/fp routines also added. - [Steve Henson] - - *) New Configure entry and patches for compiling on QNX 4. - [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] - - *) A demo state-machine implementation was sponsored by - Nuron (http://www.nuron.com/) and is now available in - demos/state_machine. - [Ben Laurie] - - *) New options added to the 'dgst' utility for signature - generation and verification. - [Steve Henson] - - *) Unrecognized PKCS#7 content types are now handled via a - catch all ASN1_TYPE structure. This allows unsupported - types to be stored as a "blob" and an application can - encode and decode it manually. - [Steve Henson] - - *) Fix various signed/unsigned issues to make a_strex.c - compile under VC++. - [Oscar Jacobsson <oscar.jacobsson@celocom.com>] - - *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct - length if passed a buffer. ASN1_INTEGER_to_BN failed - if passed a NULL BN and its argument was negative. - [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] - - *) Modification to PKCS#7 encoding routines to output definite - length encoding. Since currently the whole structures are in - memory there's not real point in using indefinite length - constructed encoding. However if OpenSSL is compiled with - the flag PKCS7_INDEFINITE_ENCODING the old form is used. - [Steve Henson] - - *) Added BIO_vprintf() and BIO_vsnprintf(). - [Richard Levitte] - - *) Added more prefixes to parse for in the the strings written - through a logging bio, to cover all the levels that are available - through syslog. The prefixes are now: - - PANIC, EMERG, EMR => LOG_EMERG - ALERT, ALR => LOG_ALERT - CRIT, CRI => LOG_CRIT - ERROR, ERR => LOG_ERR - WARNING, WARN, WAR => LOG_WARNING - NOTICE, NOTE, NOT => LOG_NOTICE - INFO, INF => LOG_INFO - DEBUG, DBG => LOG_DEBUG - - and as before, if none of those prefixes are present at the - beginning of the string, LOG_ERR is chosen. - - On Win32, the LOG_* levels are mapped according to this: - - LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE - LOG_WARNING => EVENTLOG_WARNING_TYPE - LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE - - [Richard Levitte] - - *) Made it possible to reconfigure with just the configuration - argument "reconf" or "reconfigure". The command line arguments - are stored in Makefile.ssl in the variable CONFIGURE_ARGS, - and are retrieved from there when reconfiguring. - [Richard Levitte] - - *) MD4 implemented. - [Assar Westerlund <assar@sics.se>, Richard Levitte] - - *) Add the arguments -CAfile and -CApath to the pkcs12 utility. - [Richard Levitte] - - *) The obj_dat.pl script was messing up the sorting of object - names. The reason was that it compared the quoted version - of strings as a result "OCSP" > "OCSP Signing" because - " > SPACE. Changed script to store unquoted versions of - names and add quotes on output. It was also omitting some - names from the lookup table if they were given a default - value (that is if SN is missing it is given the same - value as LN and vice versa), these are now added on the - grounds that if an object has a name we should be able to - look it up. Finally added warning output when duplicate - short or long names are found. - [Steve Henson] - - *) Changes needed for Tandem NSK. - [Scott Uroff <scott@xypro.com>] - - *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in - RSA_padding_check_SSLv23(), special padding was never detected - and thus the SSL 3.0/TLS 1.0 countermeasure against protocol - version rollback attacks was not effective. - - In s23_clnt.c, don't use special rollback-attack detection padding - (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the - client; similarly, in s23_srvr.c, don't do the rollback check if - SSL 2.0 is the only protocol enabled in the server. - [Bodo Moeller] - - *) Make it possible to get hexdumps of unprintable data with 'openssl - asn1parse'. By implication, the functions ASN1_parse_dump() and - BIO_dump_indent() are added. - [Richard Levitte] - - *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() - these print out strings and name structures based on various - flags including RFC2253 support and proper handling of - multibyte characters. Added options to the 'x509' utility - to allow the various flags to be set. - [Steve Henson] - - *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. - Also change the functions X509_cmp_current_time() and - X509_gmtime_adj() work with an ASN1_TIME structure, - this will enable certificates using GeneralizedTime in validity - dates to be checked. - [Steve Henson] - - *) Make the NEG_PUBKEY_BUG code (which tolerates invalid - negative public key encodings) on by default, - NO_NEG_PUBKEY_BUG can be set to disable it. - [Steve Henson] - - *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT - content octets. An i2c_ASN1_OBJECT is unnecessary because - the encoding can be trivially obtained from the structure. - [Steve Henson] - - *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), - not read locks (CRYPTO_r_[un]lock). - [Bodo Moeller] - - *) A first attempt at creating official support for shared - libraries through configuration. I've kept it so the - default is static libraries only, and the OpenSSL programs - are always statically linked for now, but there are - preparations for dynamic linking in place. - This has been tested on Linux and Tru64. - [Richard Levitte] - - *) Randomness polling function for Win9x, as described in: - Peter Gutmann, Software Generation of Practically Strong - Random Numbers. - [Ulf Möller] - - *) Fix so PRNG is seeded in req if using an already existing - DSA key. - [Steve Henson] - - *) New options to smime application. -inform and -outform - allow alternative formats for the S/MIME message including - PEM and DER. The -content option allows the content to be - specified separately. This should allow things like Netscape - form signing output easier to verify. - [Steve Henson] - - *) Fix the ASN1 encoding of tags using the 'long form'. - [Steve Henson] - - *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT - STRING types. These convert content octets to and from the - underlying type. The actual tag and length octets are - already assumed to have been read in and checked. These - are needed because all other string types have virtually - identical handling apart from the tag. By having versions - of the ASN1 functions that just operate on content octets - IMPLICIT tagging can be handled properly. It also allows - the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED - and ASN1_INTEGER are identical apart from the tag. - [Steve Henson] - - *) Change the handling of OID objects as follows: - - - New object identifiers are inserted in objects.txt, following - the syntax given in objects.README. - - objects.pl is used to process obj_mac.num and create a new - obj_mac.h. - - obj_dat.pl is used to create a new obj_dat.h, using the data in - obj_mac.h. - - This is currently kind of a hack, and the perl code in objects.pl - isn't very elegant, but it works as I intended. The simplest way - to check that it worked correctly is to look in obj_dat.h and - check the array nid_objs and make sure the objects haven't moved - around (this is important!). Additions are OK, as well as - consistent name changes. - [Richard Levitte] - - *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). - [Bodo Moeller] - - *) Addition of the command line parameter '-rand file' to 'openssl req'. - The given file adds to whatever has already been seeded into the - random pool through the RANDFILE configuration file option or - environment variable, or the default random state file. - [Richard Levitte] - - *) mkstack.pl now sorts each macro group into lexical order. - Previously the output order depended on the order the files - appeared in the directory, resulting in needless rewriting - of safestack.h . - [Steve Henson] - - *) Patches to make OpenSSL compile under Win32 again. Mostly - work arounds for the VC++ problem that it treats func() as - func(void). Also stripped out the parts of mkdef.pl that - added extra typesafe functions: these no longer exist. - [Steve Henson] - - *) Reorganisation of the stack code. The macros are now all - collected in safestack.h . Each macro is defined in terms of - a "stack macro" of the form SKM_<name>(type, a, b). The - DEBUG_SAFESTACK is now handled in terms of function casts, - this has the advantage of retaining type safety without the - use of additional functions. If DEBUG_SAFESTACK is not defined - then the non typesafe macros are used instead. Also modified the - mkstack.pl script to handle the new form. Needs testing to see - if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK - the default if no major problems. Similar behaviour for ASN1_SET_OF - and PKCS12_STACK_OF. - [Steve Henson] - - *) When some versions of IIS use the 'NET' form of private key the - key derivation algorithm is different. Normally MD5(password) is - used as a 128 bit RC4 key. In the modified case - MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some - new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same - as the old Netscape_RSA functions except they have an additional - 'sgckey' parameter which uses the modified algorithm. Also added - an -sgckey command line option to the rsa utility. Thanks to - Adrian Peck <bertie@ncipher.com> for posting details of the modified - algorithm to openssl-dev. - [Steve Henson] - - *) The evp_local.h macros were using 'c.##kname' which resulted in - invalid expansion on some systems (SCO 5.0.5 for example). - Corrected to 'c.kname'. - [Phillip Porch <root@theporch.com>] - - *) New X509_get1_email() and X509_REQ_get1_email() functions that return - a STACK of email addresses from a certificate or request, these look - in the subject name and the subject alternative name extensions and - omit any duplicate addresses. - [Steve Henson] - - *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. - This makes DSA verification about 2 % faster. - [Bodo Moeller] - - *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 - (meaning that now 2^5 values will be precomputed, which is only 4 KB - plus overhead for 1024 bit moduli). - This makes exponentiations about 0.5 % faster for 1024 bit - exponents (as measured by "openssl speed rsa2048"). - [Bodo Moeller] - - *) Rename memory handling macros to avoid conflicts with other - software: - Malloc => OPENSSL_malloc - Malloc_locked => OPENSSL_malloc_locked - Realloc => OPENSSL_realloc - Free => OPENSSL_free - [Richard Levitte] - - *) New function BN_mod_exp_mont_word for small bases (roughly 15% - faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). - [Bodo Moeller] - - *) CygWin32 support. - [John Jarvie <jjarvie@newsguy.com>] - - *) The type-safe stack code has been rejigged. It is now only compiled - in when OpenSSL is configured with the DEBUG_SAFESTACK option and - by default all type-specific stack functions are "#define"d back to - standard stack functions. This results in more streamlined output - but retains the type-safety checking possibilities of the original - approach. - [Geoff Thorpe] - - *) The STACK code has been cleaned up, and certain type declarations - that didn't make a lot of sense have been brought in line. This has - also involved a cleanup of sorts in safestack.h to more correctly - map type-safe stack functions onto their plain stack counterparts. - This work has also resulted in a variety of "const"ifications of - lots of the code, especially "_cmp" operations which should normally - be prototyped with "const" parameters anyway. - [Geoff Thorpe] - - *) When generating bytes for the first time in md_rand.c, 'stir the pool' - by seeding with STATE_SIZE dummy bytes (with zero entropy count). - (The PRNG state consists of two parts, the large pool 'state' and 'md', - where all of 'md' is used each time the PRNG is used, but 'state' - is used only indexed by a cyclic counter. As entropy may not be - well distributed from the beginning, 'md' is important as a - chaining variable. However, the output function chains only half - of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains - all of 'md', and seeding with STATE_SIZE dummy bytes will result - in all of 'state' being rewritten, with the new values depending - on virtually all of 'md'. This overcomes the 80 bit limitation.) - [Bodo Moeller] - - *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when - the handshake is continued after ssl_verify_cert_chain(); - otherwise, if SSL_VERIFY_NONE is set, remaining error codes - can lead to 'unexplainable' connection aborts later. - [Bodo Moeller; problem tracked down by Lutz Jaenicke] - - *) Major EVP API cipher revision. - Add hooks for extra EVP features. This allows various cipher - parameters to be set in the EVP interface. Support added for variable - key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and - setting of RC2 and RC5 parameters. - - Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length - ciphers. - - Remove lots of duplicated code from the EVP library. For example *every* - cipher init() function handles the 'iv' in the same way according to the - cipher mode. They also all do nothing if the 'key' parameter is NULL and - for CFB and OFB modes they zero ctx->num. - - New functionality allows removal of S/MIME code RC2 hack. - - Most of the routines have the same form and so can be declared in terms - of macros. - - By shifting this to the top level EVP_CipherInit() it can be removed from - all individual ciphers. If the cipher wants to handle IVs or keys - differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT - flags. - - Change lots of functions like EVP_EncryptUpdate() to now return a - value: although software versions of the algorithms cannot fail - any installed hardware versions can. - [Steve Henson] - - *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if - this option is set, tolerate broken clients that send the negotiated - protocol version number instead of the requested protocol version - number. - [Bodo Moeller] - - *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; - i.e. non-zero for export ciphersuites, zero otherwise. - Previous versions had this flag inverted, inconsistent with - rsa_tmp_cb (..._TMP_RSA_CB). - [Bodo Moeller; problem reported by Amit Chopra] - - *) Add missing DSA library text string. Work around for some IIS - key files with invalid SEQUENCE encoding. - [Steve Henson] - - *) Add a document (doc/standards.txt) that list all kinds of standards - and so on that are implemented in OpenSSL. - [Richard Levitte] - - *) Enhance c_rehash script. Old version would mishandle certificates - with the same subject name hash and wouldn't handle CRLs at all. - Added -fingerprint option to crl utility, to support new c_rehash - features. - [Steve Henson] - - *) Eliminate non-ANSI declarations in crypto.h and stack.h. - [Ulf Möller] - - *) Fix for SSL server purpose checking. Server checking was - rejecting certificates which had extended key usage present - but no ssl client purpose. - [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] - - *) Make PKCS#12 code work with no password. The PKCS#12 spec - is a little unclear about how a blank password is handled. - Since the password in encoded as a BMPString with terminating - double NULL a zero length password would end up as just the - double NULL. However no password at all is different and is - handled differently in the PKCS#12 key generation code. NS - treats a blank password as zero length. MSIE treats it as no - password on export: but it will try both on import. We now do - the same: PKCS12_parse() tries zero length and no password if - the password is set to "" or NULL (NULL is now a valid password: - it wasn't before) as does the pkcs12 application. - [Steve Henson] - - *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use - perror when PEM_read_bio_X509_REQ fails, the error message must - be obtained from the error queue. - [Bodo Moeller] - - *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing - it in ERR_remove_state if appropriate, and change ERR_get_state - accordingly to avoid race conditions (this is necessary because - thread_hash is no longer constant once set). - [Bodo Moeller] - - *) Bugfix for linux-elf makefile.one. - [Ulf Möller] - - *) RSA_get_default_method() will now cause a default - RSA_METHOD to be chosen if one doesn't exist already. - Previously this was only set during a call to RSA_new() - or RSA_new_method(NULL) meaning it was possible for - RSA_get_default_method() to return NULL. - [Geoff Thorpe] - - *) Added native name translation to the existing DSO code - that will convert (if the flag to do so is set) filenames - that are sufficiently small and have no path information - into a canonical native form. Eg. "blah" converted to - "libblah.so" or "blah.dll" etc. - [Geoff Thorpe] - - *) New function ERR_error_string_n(e, buf, len) which is like - ERR_error_string(e, buf), but writes at most 'len' bytes - including the 0 terminator. For ERR_error_string_n, 'buf' - may not be NULL. - [Damien Miller <djm@mindrot.org>, Bodo Moeller] - - *) CONF library reworked to become more general. A new CONF - configuration file reader "class" is implemented as well as a - new functions (NCONF_*, for "New CONF") to handle it. The now - old CONF_* functions are still there, but are reimplemented to - work in terms of the new functions. Also, a set of functions - to handle the internal storage of the configuration data is - provided to make it easier to write new configuration file - reader "classes" (I can definitely see something reading a - configuration file in XML format, for example), called _CONF_*, - or "the configuration storage API"... - - The new configuration file reading functions are: - - NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, - NCONF_get_section, NCONF_get_string, NCONF_get_numbre - - NCONF_default, NCONF_WIN32 - - NCONF_dump_fp, NCONF_dump_bio - - NCONF_default and NCONF_WIN32 are method (or "class") choosers, - NCONF_new creates a new CONF object. This works in the same way - as other interfaces in OpenSSL, like the BIO interface. - NCONF_dump_* dump the internal storage of the configuration file, - which is useful for debugging. All other functions take the same - arguments as the old CONF_* functions wth the exception of the - first that must be a `CONF *' instead of a `LHASH *'. - - To make it easer to use the new classes with the old CONF_* functions, - the function CONF_set_default_method is provided. - [Richard Levitte] - - *) Add '-tls1' option to 'openssl ciphers', which was already - mentioned in the documentation but had not been implemented. - (This option is not yet really useful because even the additional - experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) - [Bodo Moeller] - - *) Initial DSO code added into libcrypto for letting OpenSSL (and - OpenSSL-based applications) load shared libraries and bind to - them in a portable way. - [Geoff Thorpe, with contributions from Richard Levitte] - - Changes between 0.9.5 and 0.9.5a [1 Apr 2000] - - *) Make sure _lrotl and _lrotr are only used with MSVC. - - *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status - (the default implementation of RAND_status). - - *) Rename openssl x509 option '-crlext', which was added in 0.9.5, - to '-clrext' (= clear extensions), as intended and documented. - [Bodo Moeller; inconsistency pointed out by Michael Attili - <attili@amaxo.com>] - - *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length - was larger than the MD block size. - [Steve Henson, pointed out by Yost William <YostW@tce.com>] - - *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument - fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() - using the passed key: if the passed key was a private key the result - of X509_print(), for example, would be to print out all the private key - components. - [Steve Henson] - - *) des_quad_cksum() byte order bug fix. - [Ulf Möller, using the problem description in krb4-0.9.7, where - the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] - - *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly - discouraged. - [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] - - *) For easily testing in shell scripts whether some command - 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' - returns with exit code 0 iff no command of the given name is available. - 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, - the output goes to stdout and nothing is printed to stderr. - Additional arguments are always ignored. - - Since for each cipher there is a command of the same name, - the 'no-cipher' compilation switches can be tested this way. - - ('openssl no-XXX' is not able to detect pseudo-commands such - as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) - [Bodo Moeller] - - *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. - [Bodo Moeller] - - *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE - is set; it will be thrown away anyway because each handshake creates - its own key. - ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition - to parameters -- in previous versions (since OpenSSL 0.9.3) the - 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining - you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. - [Bodo Moeller] - - *) New s_client option -ign_eof: EOF at stdin is ignored, and - 'Q' and 'R' lose their special meanings (quit/renegotiate). - This is part of what -quiet does; unlike -quiet, -ign_eof - does not suppress any output. - [Richard Levitte] - - *) Add compatibility options to the purpose and trust code. The - purpose X509_PURPOSE_ANY is "any purpose" which automatically - accepts a certificate or CA, this was the previous behaviour, - with all the associated security issues. - - X509_TRUST_COMPAT is the old trust behaviour: only and - automatically trust self signed roots in certificate store. A - new trust setting X509_TRUST_DEFAULT is used to specify that - a purpose has no associated trust setting and it should instead - use the value in the default purpose. - [Steve Henson] - - *) Fix the PKCS#8 DSA private key code so it decodes keys again - and fix a memory leak. - [Steve Henson] - - *) In util/mkerr.pl (which implements 'make errors'), preserve - reason strings from the previous version of the .c file, as - the default to have only downcase letters (and digits) in - automatically generated reasons codes is not always appropriate. - [Bodo Moeller] - - *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table - using strerror. Previously, ERR_reason_error_string() returned - library names as reason strings for SYSerr; but SYSerr is a special - case where small numbers are errno values, not library numbers. - [Bodo Moeller] - - *) Add '-dsaparam' option to 'openssl dhparam' application. This - converts DSA parameters into DH parameters. (When creating parameters, - DSA_generate_parameters is used.) - [Bodo Moeller] - - *) Include 'length' (recommended exponent length) in C code generated - by 'openssl dhparam -C'. - [Bodo Moeller] - - *) The second argument to set_label in perlasm was already being used - so couldn't be used as a "file scope" flag. Moved to third argument - which was free. - [Steve Henson] - - *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes - instead of RAND_bytes for encryption IVs and salts. - [Bodo Moeller] - - *) Include RAND_status() into RAND_METHOD instead of implementing - it only for md_rand.c Otherwise replacing the PRNG by calling - RAND_set_rand_method would be impossible. - [Bodo Moeller] - - *) Don't let DSA_generate_key() enter an infinite loop if the random - number generation fails. - [Bodo Moeller] - - *) New 'rand' application for creating pseudo-random output. - [Bodo Moeller] - - *) Added configuration support for Linux/IA64 - [Rolf Haberrecker <rolf@suse.de>] - - *) Assembler module support for Mingw32. - [Ulf Möller] - - *) Shared library support for HPUX (in shlib/). - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] - - *) Shared library support for Solaris gcc. - [Lutz Behnke <behnke@trustcenter.de>] - - Changes between 0.9.4 and 0.9.5 [28 Feb 2000] - - *) PKCS7_encrypt() was adding text MIME headers twice because they - were added manually and by SMIME_crlf_copy(). - [Steve Henson] - - *) In bntest.c don't call BN_rand with zero bits argument. - [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] - - *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] - case was implemented. This caused BN_div_recp() to fail occasionally. - [Ulf Möller] - - *) Add an optional second argument to the set_label() in the perl - assembly language builder. If this argument exists and is set - to 1 it signals that the assembler should use a symbol whose - scope is the entire file, not just the current function. This - is needed with MASM which uses the format label:: for this scope. - [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] - - *) Change the ASN1 types so they are typedefs by default. Before - almost all types were #define'd to ASN1_STRING which was causing - STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) - for example. - [Steve Henson] - - *) Change names of new functions to the new get1/get0 naming - convention: After 'get1', the caller owns a reference count - and has to call ..._free; 'get0' returns a pointer to some - data structure without incrementing reference counters. - (Some of the existing 'get' functions increment a reference - counter, some don't.) - Similarly, 'set1' and 'add1' functions increase reference - counters or duplicate objects. - [Steve Henson] - - *) Allow for the possibility of temp RSA key generation failure: - the code used to assume it always worked and crashed on failure. - [Steve Henson] - - *) Fix potential buffer overrun problem in BIO_printf(). - [Ulf Möller, using public domain code by Patrick Powell; problem - pointed out by David Sacerdote <das33@cornell.edu>] - - *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions - RAND_egd() and RAND_status(). In the command line application, - the EGD socket can be specified like a seed file using RANDFILE - or -rand. - [Ulf Möller] - - *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. - Some CAs (e.g. Verisign) distribute certificates in this form. - [Steve Henson] - - *) Remove the SSL_ALLOW_ADH compile option and set the default cipher - list to exclude them. This means that no special compilation option - is needed to use anonymous DH: it just needs to be included in the - cipher list. - [Steve Henson] - - *) Change the EVP_MD_CTX_type macro so its meaning consistent with - EVP_MD_type. The old functionality is available in a new macro called - EVP_MD_md(). Change code that uses it and update docs. - [Steve Henson] - - *) ..._ctrl functions now have corresponding ..._callback_ctrl functions - where the 'void *' argument is replaced by a function pointer argument. - Previously 'void *' was abused to point to functions, which works on - many platforms, but is not correct. As these functions are usually - called by macros defined in OpenSSL header files, most source code - should work without changes. - [Richard Levitte] - - *) <openssl/opensslconf.h> (which is created by Configure) now contains - sections with information on -D... compiler switches used for - compiling the library so that applications can see them. To enable - one of these sections, a pre-processor symbol OPENSSL_..._DEFINES - must be defined. E.g., - #define OPENSSL_ALGORITHM_DEFINES - #include <openssl/opensslconf.h> - defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. - [Richard Levitte, Ulf and Bodo Möller] - - *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS - record layer. - [Bodo Moeller] - - *) Change the 'other' type in certificate aux info to a STACK_OF - X509_ALGOR. Although not an AlgorithmIdentifier as such it has - the required ASN1 format: arbitrary types determined by an OID. - [Steve Henson] - - *) Add some PEM_write_X509_REQ_NEW() functions and a command line - argument to 'req'. This is not because the function is newer or - better than others it just uses the work 'NEW' in the certificate - request header lines. Some software needs this. - [Steve Henson] - - *) Reorganise password command line arguments: now passwords can be - obtained from various sources. Delete the PEM_cb function and make - it the default behaviour: i.e. if the callback is NULL and the - usrdata argument is not NULL interpret it as a null terminated pass - phrase. If usrdata and the callback are NULL then the pass phrase - is prompted for as usual. - [Steve Henson] - - *) Add support for the Compaq Atalla crypto accelerator. If it is installed, - the support is automatically enabled. The resulting binaries will - autodetect the card and use it if present. - [Ben Laurie and Compaq Inc.] - - *) Work around for Netscape hang bug. This sends certificate request - and server done in one record. Since this is perfectly legal in the - SSL/TLS protocol it isn't a "bug" option and is on by default. See - the bugs/SSLv3 entry for more info. - [Steve Henson] - - *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. - [Andy Polyakov] - - *) Add -rand argument to smime and pkcs12 applications and read/write - of seed file. - [Steve Henson] - - *) New 'passwd' tool for crypt(3) and apr1 password hashes. - [Bodo Moeller] - - *) Add command line password options to the remaining applications. - [Steve Henson] - - *) Bug fix for BN_div_recp() for numerators with an even number of - bits. - [Ulf Möller] - - *) More tests in bntest.c, and changed test_bn output. - [Ulf Möller] - - *) ./config recognizes MacOS X now. - [Andy Polyakov] - - *) Bug fix for BN_div() when the first words of num and divsor are - equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). - [Ulf Möller] - - *) Add support for various broken PKCS#8 formats, and command line - options to produce them. - [Steve Henson] - - *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to - get temporary BIGNUMs from a BN_CTX. - [Ulf Möller] - - *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() - for p == 0. - [Ulf Möller] - - *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and - include a #define from the old name to the new. The original intent - was that statically linked binaries could for example just call - SSLeay_add_all_ciphers() to just add ciphers to the table and not - link with digests. This never worked becayse SSLeay_add_all_digests() - and SSLeay_add_all_ciphers() were in the same source file so calling - one would link with the other. They are now in separate source files. - [Steve Henson] - - *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. - [Steve Henson] - - *) Use a less unusual form of the Miller-Rabin primality test (it used - a binary algorithm for exponentiation integrated into the Miller-Rabin - loop, our standard modexp algorithms are faster). - [Bodo Moeller] - - *) Support for the EBCDIC character set completed. - [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] - - *) Source code cleanups: use const where appropriate, eliminate casts, - use void * instead of char * in lhash. - [Ulf Möller] - - *) Bugfix: ssl3_send_server_key_exchange was not restartable - (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of - this the server could overwrite ephemeral keys that the client - has already seen). - [Bodo Moeller] - - *) Turn DSA_is_prime into a macro that calls BN_is_prime, - using 50 iterations of the Rabin-Miller test. - - DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 - iterations of the Rabin-Miller test as required by the appendix - to FIPS PUB 186[-1]) instead of DSA_is_prime. - As BN_is_prime_fasttest includes trial division, DSA parameter - generation becomes much faster. - - This implies a change for the callback functions in DSA_is_prime - and DSA_generate_parameters: The callback function is called once - for each positive witness in the Rabin-Miller test, not just - occasionally in the inner loop; and the parameters to the - callback function now provide an iteration count for the outer - loop rather than for the current invocation of the inner loop. - DSA_generate_parameters additionally can call the callback - function with an 'iteration count' of -1, meaning that a - candidate has passed the trial division test (when q is generated - from an application-provided seed, trial division is skipped). - [Bodo Moeller] - - *) New function BN_is_prime_fasttest that optionally does trial - division before starting the Rabin-Miller test and has - an additional BN_CTX * argument (whereas BN_is_prime always - has to allocate at least one BN_CTX). - 'callback(1, -1, cb_arg)' is called when a number has passed the - trial division stage. - [Bodo Moeller] - - *) Fix for bug in CRL encoding. The validity dates weren't being handled - as ASN1_TIME. - [Steve Henson] - - *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. - [Steve Henson] - - *) New function BN_pseudo_rand(). - [Ulf Möller] - - *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) - bignum version of BN_from_montgomery() with the working code from - SSLeay 0.9.0 (the word based version is faster anyway), and clean up - the comments. - [Ulf Möller] - - *) Avoid a race condition in s2_clnt.c (function get_server_hello) that - made it impossible to use the same SSL_SESSION data structure in - SSL2 clients in multiple threads. - [Bodo Moeller] - - *) The return value of RAND_load_file() no longer counts bytes obtained - by stat(). RAND_load_file(..., -1) is new and uses the complete file - to seed the PRNG (previously an explicit byte count was required). - [Ulf Möller, Bodo Möller] - - *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes - used (char *) instead of (void *) and had casts all over the place. - [Steve Henson] - - *) Make BN_generate_prime() return NULL on error if ret!=NULL. - [Ulf Möller] - - *) Retain source code compatibility for BN_prime_checks macro: - BN_is_prime(..., BN_prime_checks, ...) now uses - BN_prime_checks_for_size to determine the appropriate number of - Rabin-Miller iterations. - [Ulf Möller] - - *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to - DH_CHECK_P_NOT_SAFE_PRIME. - (Check if this is true? OpenPGP calls them "strong".) - [Ulf Möller] - - *) Merge the functionality of "dh" and "gendh" programs into a new program - "dhparam". The old programs are retained for now but will handle DH keys - (instead of parameters) in future. - [Steve Henson] - - *) Make the ciphers, s_server and s_client programs check the return values - when a new cipher list is set. - [Steve Henson] - - *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit - ciphers. Before when the 56bit ciphers were enabled the sorting was - wrong. - - The syntax for the cipher sorting has been extended to support sorting by - cipher-strength (using the strength_bits hard coded in the tables). - The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). - - Fix a bug in the cipher-command parser: when supplying a cipher command - string with an "undefined" symbol (neither command nor alphanumeric - [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now - an error is flagged. - - Due to the strength-sorting extension, the code of the - ssl_create_cipher_list() function was completely rearranged. I hope that - the readability was also increased :-) - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] - - *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 - for the first serial number and places 2 in the serial number file. This - avoids problems when the root CA is created with serial number zero and - the first user certificate has the same issuer name and serial number - as the root CA. - [Steve Henson] - - *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses - the new code. Add documentation for this stuff. - [Steve Henson] - - *) Changes to X509_ATTRIBUTE utilities. These have been renamed from - X509_*() to X509at_*() on the grounds that they don't handle X509 - structures and behave in an analagous way to the X509v3 functions: - they shouldn't be called directly but wrapper functions should be used - instead. - - So we also now have some wrapper functions that call the X509at functions - when passed certificate requests. (TO DO: similar things can be done with - PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other - things. Some of these need some d2i or i2d and print functionality - because they handle more complex structures.) - [Steve Henson] - - *) Add missing #ifndefs that caused missing symbols when building libssl - as a shared library without RSA. Use #ifndef NO_SSL2 instead of - NO_RSA in ssl/s2*.c. - [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller] - - *) Precautions against using the PRNG uninitialized: RAND_bytes() now - has a return value which indicates the quality of the random data - (1 = ok, 0 = not seeded). Also an error is recorded on the thread's - error queue. New function RAND_pseudo_bytes() generates output that is - guaranteed to be unique but not unpredictable. RAND_add is like - RAND_seed, but takes an extra argument for an entropy estimate - (RAND_seed always assumes full entropy). - [Ulf Möller] - - *) Do more iterations of Rabin-Miller probable prime test (specifically, - 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes - instead of only 2 for all lengths; see BN_prime_checks_for_size definition - in crypto/bn/bn_prime.c for the complete table). This guarantees a - false-positive rate of at most 2^-80 for random input. - [Bodo Moeller] - - *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. - [Bodo Moeller] - - *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain - in the 0.9.5 release), this returns the chain - from an X509_CTX structure with a dup of the stack and all - the X509 reference counts upped: so the stack will exist - after X509_CTX_cleanup() has been called. Modify pkcs12.c - to use this. - - Also make SSL_SESSION_print() print out the verify return - code. - [Steve Henson] - - *) Add manpage for the pkcs12 command. Also change the default - behaviour so MAC iteration counts are used unless the new - -nomaciter option is used. This improves file security and - only older versions of MSIE (4.0 for example) need it. - [Steve Henson] - - *) Honor the no-xxx Configure options when creating .DEF files. - [Ulf Möller] - - *) Add PKCS#10 attributes to field table: challengePassword, - unstructuredName and unstructuredAddress. These are taken from - draft PKCS#9 v2.0 but are compatible with v1.2 provided no - international characters are used. - - More changes to X509_ATTRIBUTE code: allow the setting of types - based on strings. Remove the 'loc' parameter when adding - attributes because these will be a SET OF encoding which is sorted - in ASN1 order. - [Steve Henson] - - *) Initial changes to the 'req' utility to allow request generation - automation. This will allow an application to just generate a template - file containing all the field values and have req construct the - request. - - Initial support for X509_ATTRIBUTE handling. Stacks of these are - used all over the place including certificate requests and PKCS#7 - structures. They are currently handled manually where necessary with - some primitive wrappers for PKCS#7. The new functions behave in a - manner analogous to the X509 extension functions: they allow - attributes to be looked up by NID and added. - - Later something similar to the X509V3 code would be desirable to - automatically handle the encoding, decoding and printing of the - more complex types. The string types like challengePassword can - be handled by the string table functions. - - Also modified the multi byte string table handling. Now there is - a 'global mask' which masks out certain types. The table itself - can use the flag STABLE_NO_MASK to ignore the mask setting: this - is useful when for example there is only one permissible type - (as in countryName) and using the mask might result in no valid - types at all. - [Steve Henson] - - *) Clean up 'Finished' handling, and add functions SSL_get_finished and - SSL_get_peer_finished to allow applications to obtain the latest - Finished messages sent to the peer or expected from the peer, - respectively. (SSL_get_peer_finished is usually the Finished message - actually received from the peer, otherwise the protocol will be aborted.) - - As the Finished message are message digests of the complete handshake - (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can - be used for external authentication procedures when the authentication - provided by SSL/TLS is not desired or is not enough. - [Bodo Moeller] - - *) Enhanced support for Alpha Linux is added. Now ./config checks if - the host supports BWX extension and if Compaq C is present on the - $PATH. Just exploiting of the BWX extension results in 20-30% - performance kick for some algorithms, e.g. DES and RC4 to mention - a couple. Compaq C in turn generates ~20% faster code for MD5 and - SHA1. - [Andy Polyakov] - - *) Add support for MS "fast SGC". This is arguably a violation of the - SSL3/TLS protocol. Netscape SGC does two handshakes: the first with - weak crypto and after checking the certificate is SGC a second one - with strong crypto. MS SGC stops the first handshake after receiving - the server certificate message and sends a second client hello. Since - a server will typically do all the time consuming operations before - expecting any further messages from the client (server key exchange - is the most expensive) there is little difference between the two. - - To get OpenSSL to support MS SGC we have to permit a second client - hello message after we have sent server done. In addition we have to - reset the MAC if we do get this second client hello. - [Steve Henson] - - *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide - if a DER encoded private key is RSA or DSA traditional format. Changed - d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" - format DER encoded private key. Newer code should use PKCS#8 format which - has the key type encoded in the ASN1 structure. Added DER private key - support to pkcs8 application. - [Steve Henson] - - *) SSL 3/TLS 1 servers now don't request certificates when an anonymous - ciphersuites has been selected (as required by the SSL 3/TLS 1 - specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT - is set, we interpret this as a request to violate the specification - (the worst that can happen is a handshake failure, and 'correct' - behaviour would result in a handshake failure anyway). - [Bodo Moeller] - - *) In SSL_CTX_add_session, take into account that there might be multiple - SSL_SESSION structures with the same session ID (e.g. when two threads - concurrently obtain them from an external cache). - The internal cache can handle only one SSL_SESSION with a given ID, - so if there's a conflict, we now throw out the old one to achieve - consistency. - [Bodo Moeller] - - *) Add OIDs for idea and blowfish in CBC mode. This will allow both - to be used in PKCS#5 v2.0 and S/MIME. Also add checking to - some routines that use cipher OIDs: some ciphers do not have OIDs - defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for - example. - [Steve Henson] - - *) Simplify the trust setting structure and code. Now we just have - two sequences of OIDs for trusted and rejected settings. These will - typically have values the same as the extended key usage extension - and any application specific purposes. - - The trust checking code now has a default behaviour: it will just - check for an object with the same NID as the passed id. Functions can - be provided to override either the default behaviour or the behaviour - for a given id. SSL client, server and email already have functions - in place for compatibility: they check the NID and also return "trusted" - if the certificate is self signed. - [Steve Henson] - - *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the - traditional format into an EVP_PKEY structure. - [Steve Henson] - - *) Add a password callback function PEM_cb() which either prompts for - a password if usr_data is NULL or otherwise assumes it is a null - terminated password. Allow passwords to be passed on command line - environment or config files in a few more utilities. - [Steve Henson] - - *) Add a bunch of DER and PEM functions to handle PKCS#8 format private - keys. Add some short names for PKCS#8 PBE algorithms and allow them - to be specified on the command line for the pkcs8 and pkcs12 utilities. - Update documentation. - [Steve Henson] - - *) Support for ASN1 "NULL" type. This could be handled before by using - ASN1_TYPE but there wasn't any function that would try to read a NULL - and produce an error if it couldn't. For compatibility we also have - ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and - don't allocate anything because they don't need to. - [Steve Henson] - - *) Initial support for MacOS is now provided. Examine INSTALL.MacOS - for details. - [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] - - *) Rebuild of the memory allocation routines used by OpenSSL code and - possibly others as well. The purpose is to make an interface that - provide hooks so anyone can build a separate set of allocation and - deallocation routines to be used by OpenSSL, for example memory - pool implementations, or something else, which was previously hard - since Malloc(), Realloc() and Free() were defined as macros having - the values malloc, realloc and free, respectively (except for Win32 - compilations). The same is provided for memory debugging code. - OpenSSL already comes with functionality to find memory leaks, but - this gives people a chance to debug other memory problems. - - With these changes, a new set of functions and macros have appeared: - - CRYPTO_set_mem_debug_functions() [F] - CRYPTO_get_mem_debug_functions() [F] - CRYPTO_dbg_set_options() [F] - CRYPTO_dbg_get_options() [F] - CRYPTO_malloc_debug_init() [M] - - The memory debug functions are NULL by default, unless the library - is compiled with CRYPTO_MDEBUG or friends is defined. If someone - wants to debug memory anyway, CRYPTO_malloc_debug_init() (which - gives the standard debugging functions that come with OpenSSL) or - CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions - provided by the library user) must be used. When the standard - debugging functions are used, CRYPTO_dbg_set_options can be used to - request additional information: - CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting - the CRYPTO_MDEBUG_xxx macro when compiling the library. - - Also, things like CRYPTO_set_mem_functions will always give the - expected result (the new set of functions is used for allocation - and deallocation) at all times, regardless of platform and compiler - options. - - To finish it up, some functions that were never use in any other - way than through macros have a new API and new semantic: - - CRYPTO_dbg_malloc() - CRYPTO_dbg_realloc() - CRYPTO_dbg_free() - - All macros of value have retained their old syntax. - [Richard Levitte and Bodo Moeller] - - *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the - ordering of SMIMECapabilities wasn't in "strength order" and there - was a missing NULL in the AlgorithmIdentifier for the SHA1 signature - algorithm. - [Steve Henson] - - *) Some ASN1 types with illegal zero length encoding (INTEGER, - ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. - [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] - - *) Merge in my S/MIME library for OpenSSL. This provides a simple - S/MIME API on top of the PKCS#7 code, a MIME parser (with enough - functionality to handle multipart/signed properly) and a utility - called 'smime' to call all this stuff. This is based on code I - originally wrote for Celo who have kindly allowed it to be - included in OpenSSL. - [Steve Henson] - - *) Add variants des_set_key_checked and des_set_key_unchecked of - des_set_key (aka des_key_sched). Global variable des_check_key - decides which of these is called by des_set_key; this way - des_check_key behaves as it always did, but applications and - the library itself, which was buggy for des_check_key == 1, - have a cleaner way to pick the version they need. - [Bodo Moeller] - - *) New function PKCS12_newpass() which changes the password of a - PKCS12 structure. - [Steve Henson] - - *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and - dynamic mix. In both cases the ids can be used as an index into the - table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() - functions so they accept a list of the field values and the - application doesn't need to directly manipulate the X509_TRUST - structure. - [Steve Henson] - - *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't - need initialising. - [Steve Henson] - - *) Modify the way the V3 extension code looks up extensions. This now - works in a similar way to the object code: we have some "standard" - extensions in a static table which is searched with OBJ_bsearch() - and the application can add dynamic ones if needed. The file - crypto/x509v3/ext_dat.h now has the info: this file needs to be - updated whenever a new extension is added to the core code and kept - in ext_nid order. There is a simple program 'tabtest.c' which checks - this. New extensions are not added too often so this file can readily - be maintained manually. - - There are two big advantages in doing things this way. The extensions - can be looked up immediately and no longer need to be "added" using - X509V3_add_standard_extensions(): this function now does nothing. - [Side note: I get *lots* of email saying the extension code doesn't - work because people forget to call this function] - Also no dynamic allocation is done unless new extensions are added: - so if we don't add custom extensions there is no need to call - X509V3_EXT_cleanup(). - [Steve Henson] - - *) Modify enc utility's salting as follows: make salting the default. Add a - magic header, so unsalted files fail gracefully instead of just decrypting - to garbage. This is because not salting is a big security hole, so people - should be discouraged from doing it. - [Ben Laurie] - - *) Fixes and enhancements to the 'x509' utility. It allowed a message - digest to be passed on the command line but it only used this - parameter when signing a certificate. Modified so all relevant - operations are affected by the digest parameter including the - -fingerprint and -x509toreq options. Also -x509toreq choked if a - DSA key was used because it didn't fix the digest. - [Steve Henson] - - *) Initial certificate chain verify code. Currently tests the untrusted - certificates for consistency with the verify purpose (which is set - when the X509_STORE_CTX structure is set up) and checks the pathlength. - - There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: - this is because it will reject chains with invalid extensions whereas - every previous version of OpenSSL and SSLeay made no checks at all. - - Trust code: checks the root CA for the relevant trust settings. Trust - settings have an initial value consistent with the verify purpose: e.g. - if the verify purpose is for SSL client use it expects the CA to be - trusted for SSL client use. However the default value can be changed to - permit custom trust settings: one example of this would be to only trust - certificates from a specific "secure" set of CAs. - - Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions - which should be used for version portability: especially since the - verify structure is likely to change more often now. - - SSL integration. Add purpose and trust to SSL_CTX and SSL and functions - to set them. If not set then assume SSL clients will verify SSL servers - and vice versa. - - Two new options to the verify program: -untrusted allows a set of - untrusted certificates to be passed in and -purpose which sets the - intended purpose of the certificate. If a purpose is set then the - new chain verify code is used to check extension consistency. - [Steve Henson] - - *) Support for the authority information access extension. - [Steve Henson] - - *) Modify RSA and DSA PEM read routines to transparently handle - PKCS#8 format private keys. New *_PUBKEY_* functions that handle - public keys in a format compatible with certificate - SubjectPublicKeyInfo structures. Unfortunately there were already - functions called *_PublicKey_* which used various odd formats so - these are retained for compatibility: however the DSA variants were - never in a public release so they have been deleted. Changed dsa/rsa - utilities to handle the new format: note no releases ever handled public - keys so we should be OK. - - The primary motivation for this change is to avoid the same fiasco - that dogs private keys: there are several incompatible private key - formats some of which are standard and some OpenSSL specific and - require various evil hacks to allow partial transparent handling and - even then it doesn't work with DER formats. Given the option anything - other than PKCS#8 should be dumped: but the other formats have to - stay in the name of compatibility. - - With public keys and the benefit of hindsight one standard format - is used which works with EVP_PKEY, RSA or DSA structures: though - it clearly returns an error if you try to read the wrong kind of key. - - Added a -pubkey option to the 'x509' utility to output the public key. - Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() - (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add - EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) - that do the same as the EVP_PKEY_assign_*() except they up the - reference count of the added key (they don't "swallow" the - supplied key). - [Steve Henson] - - *) Fixes to crypto/x509/by_file.c the code to read in certificates and - CRLs would fail if the file contained no certificates or no CRLs: - added a new function to read in both types and return the number - read: this means that if none are read it will be an error. The - DER versions of the certificate and CRL reader would always fail - because it isn't possible to mix certificates and CRLs in DER format - without choking one or the other routine. Changed this to just read - a certificate: this is the best we can do. Also modified the code - in apps/verify.c to take notice of return codes: it was previously - attempting to read in certificates from NULL pointers and ignoring - any errors: this is one reason why the cert and CRL reader seemed - to work. It doesn't check return codes from the default certificate - routines: these may well fail if the certificates aren't installed. - [Steve Henson] - - *) Code to support otherName option in GeneralName. - [Steve Henson] - - *) First update to verify code. Change the verify utility - so it warns if it is passed a self signed certificate: - for consistency with the normal behaviour. X509_verify - has been modified to it will now verify a self signed - certificate if *exactly* the same certificate appears - in the store: it was previously impossible to trust a - single self signed certificate. This means that: - openssl verify ss.pem - now gives a warning about a self signed certificate but - openssl verify -CAfile ss.pem ss.pem - is OK. - [Steve Henson] - - *) For servers, store verify_result in SSL_SESSION data structure - (and add it to external session representation). - This is needed when client certificate verifications fails, - but an application-provided verification callback (set by - SSL_CTX_set_cert_verify_callback) allows accepting the session - anyway (i.e. leaves x509_store_ctx->error != X509_V_OK - but returns 1): When the session is reused, we have to set - ssl->verify_result to the appropriate error code to avoid - security holes. - [Bodo Moeller, problem pointed out by Lutz Jaenicke] - - *) Fix a bug in the new PKCS#7 code: it didn't consider the - case in PKCS7_dataInit() where the signed PKCS7 structure - didn't contain any existing data because it was being created. - [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] - - *) Add a salt to the key derivation routines in enc.c. This - forms the first 8 bytes of the encrypted file. Also add a - -S option to allow a salt to be input on the command line. - [Steve Henson] - - *) New function X509_cmp(). Oddly enough there wasn't a function - to compare two certificates. We do this by working out the SHA1 - hash and comparing that. X509_cmp() will be needed by the trust - code. - [Steve Henson] - - *) SSL_get1_session() is like SSL_get_session(), but increments - the reference count in the SSL_SESSION returned. - [Geoff Thorpe <geoff@eu.c2.net>] - - *) Fix for 'req': it was adding a null to request attributes. - Also change the X509_LOOKUP and X509_INFO code to handle - certificate auxiliary information. - [Steve Henson] - - *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document - the 'enc' command. - [Steve Henson] - - *) Add the possibility to add extra information to the memory leak - detecting output, to form tracebacks, showing from where each - allocation was originated: CRYPTO_push_info("constant string") adds - the string plus current file name and line number to a per-thread - stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() - is like calling CYRPTO_pop_info() until the stack is empty. - Also updated memory leak detection code to be multi-thread-safe. - [Richard Levitte] - - *) Add options -text and -noout to pkcs7 utility and delete the - encryption options which never did anything. Update docs. - [Steve Henson] - - *) Add options to some of the utilities to allow the pass phrase - to be included on either the command line (not recommended on - OSes like Unix) or read from the environment. Update the - manpages and fix a few bugs. - [Steve Henson] - - *) Add a few manpages for some of the openssl commands. - [Steve Henson] - - *) Fix the -revoke option in ca. It was freeing up memory twice, - leaking and not finding already revoked certificates. - [Steve Henson] - - *) Extensive changes to support certificate auxiliary information. - This involves the use of X509_CERT_AUX structure and X509_AUX - functions. An X509_AUX function such as PEM_read_X509_AUX() - can still read in a certificate file in the usual way but it - will also read in any additional "auxiliary information". By - doing things this way a fair degree of compatibility can be - retained: existing certificates can have this information added - using the new 'x509' options. - - Current auxiliary information includes an "alias" and some trust - settings. The trust settings will ultimately be used in enhanced - certificate chain verification routines: currently a certificate - can only be trusted if it is self signed and then it is trusted - for all purposes. - [Steve Henson] - - *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). - The problem was that one of the replacement routines had not been working - since SSLeay releases. For now the offending routine has been replaced - with non-optimised assembler. Even so, this now gives around 95% - performance improvement for 1024 bit RSA signs. - [Mark Cox] - - *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 - handling. Most clients have the effective key size in bits equal to - the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. - A few however don't do this and instead use the size of the decrypted key - to determine the RC2 key length and the AlgorithmIdentifier to determine - the effective key length. In this case the effective key length can still - be 40 bits but the key length can be 168 bits for example. This is fixed - by manually forcing an RC2 key into the EVP_PKEY structure because the - EVP code can't currently handle unusual RC2 key sizes: it always assumes - the key length and effective key length are equal. - [Steve Henson] - - *) Add a bunch of functions that should simplify the creation of - X509_NAME structures. Now you should be able to do: - X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); - and have it automatically work out the correct field type and fill in - the structures. The more adventurous can try: - X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); - and it will (hopefully) work out the correct multibyte encoding. - [Steve Henson] - - *) Change the 'req' utility to use the new field handling and multibyte - copy routines. Before the DN field creation was handled in an ad hoc - way in req, ca, and x509 which was rather broken and didn't support - BMPStrings or UTF8Strings. Since some software doesn't implement - BMPStrings or UTF8Strings yet, they can be enabled using the config file - using the dirstring_type option. See the new comment in the default - openssl.cnf for more info. - [Steve Henson] - - *) Make crypto/rand/md_rand.c more robust: - - Assure unique random numbers after fork(). - - Make sure that concurrent threads access the global counter and - md serializably so that we never lose entropy in them - or use exactly the same state in multiple threads. - Access to the large state is not always serializable because - the additional locking could be a performance killer, and - md should be large enough anyway. - [Bodo Moeller] - - *) New file apps/app_rand.c with commonly needed functionality - for handling the random seed file. - - Use the random seed file in some applications that previously did not: - ca, - dsaparam -genkey (which also ignored its '-rand' option), - s_client, - s_server, - x509 (when signing). - Except on systems with /dev/urandom, it is crucial to have a random - seed file at least for key creation, DSA signing, and for DH exchanges; - for RSA signatures we could do without one. - - gendh and gendsa (unlike genrsa) used to read only the first byte - of each file listed in the '-rand' option. The function as previously - found in genrsa is now in app_rand.c and is used by all programs - that support '-rand'. - [Bodo Moeller] - - *) In RAND_write_file, use mode 0600 for creating files; - don't just chmod when it may be too late. - [Bodo Moeller] - - *) Report an error from X509_STORE_load_locations - when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. - [Bill Perry] - - *) New function ASN1_mbstring_copy() this copies a string in either - ASCII, Unicode, Universal (4 bytes per character) or UTF8 format - into an ASN1_STRING type. A mask of permissible types is passed - and it chooses the "minimal" type to use or an error if not type - is suitable. - [Steve Henson] - - *) Add function equivalents to the various macros in asn1.h. The old - macros are retained with an M_ prefix. Code inside the library can - use the M_ macros. External code (including the openssl utility) - should *NOT* in order to be "shared library friendly". - [Steve Henson] - - *) Add various functions that can check a certificate's extensions - to see if it usable for various purposes such as SSL client, - server or S/MIME and CAs of these types. This is currently - VERY EXPERIMENTAL but will ultimately be used for certificate chain - verification. Also added a -purpose flag to x509 utility to - print out all the purposes. - [Steve Henson] - - *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated - functions. - [Steve Henson] - - *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search - for, obtain and decode and extension and obtain its critical flag. - This allows all the necessary extension code to be handled in a - single function call. - [Steve Henson] - - *) RC4 tune-up featuring 30-40% performance improvement on most RISC - platforms. See crypto/rc4/rc4_enc.c for further details. - [Andy Polyakov] - - *) New -noout option to asn1parse. This causes no output to be produced - its main use is when combined with -strparse and -out to extract data - from a file (which may not be in ASN.1 format). - [Steve Henson] - - *) Fix for pkcs12 program. It was hashing an invalid certificate pointer - when producing the local key id. - [Richard Levitte <levitte@stacken.kth.se>] - - *) New option -dhparam in s_server. This allows a DH parameter file to be - stated explicitly. If it is not stated then it tries the first server - certificate file. The previous behaviour hard coded the filename - "server.pem". - [Steve Henson] - - *) Add -pubin and -pubout options to the rsa and dsa commands. These allow - a public key to be input or output. For example: - openssl rsa -in key.pem -pubout -out pubkey.pem - Also added necessary DSA public key functions to handle this. - [Steve Henson] - - *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained - in the message. This was handled by allowing - X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. - [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] - - *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null - to the end of the strings whereas this didn't. This would cause problems - if strings read with d2i_ASN1_bytes() were later modified. - [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] - - *) Fix for base64 decode bug. When a base64 bio reads only one line of - data and it contains EOF it will end up returning an error. This is - caused by input 46 bytes long. The cause is due to the way base64 - BIOs find the start of base64 encoded data. They do this by trying a - trial decode on each line until they find one that works. When they - do a flag is set and it starts again knowing it can pass all the - data directly through the decoder. Unfortunately it doesn't reset - the context it uses. This means that if EOF is reached an attempt - is made to pass two EOFs through the context and this causes the - resulting error. This can also cause other problems as well. As is - usual with these problems it takes *ages* to find and the fix is - trivial: move one line. - [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] - - *) Ugly workaround to get s_client and s_server working under Windows. The - old code wouldn't work because it needed to select() on sockets and the - tty (for keypresses and to see if data could be written). Win32 only - supports select() on sockets so we select() with a 1s timeout on the - sockets and then see if any characters are waiting to be read, if none - are present then we retry, we also assume we can always write data to - the tty. This isn't nice because the code then blocks until we've - received a complete line of data and it is effectively polling the - keyboard at 1s intervals: however it's quite a bit better than not - working at all :-) A dedicated Windows application might handle this - with an event loop for example. - [Steve Henson] - - *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign - and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions - will be called when RSA_sign() and RSA_verify() are used. This is useful - if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. - For this to work properly RSA_public_decrypt() and RSA_private_encrypt() - should *not* be used: RSA_sign() and RSA_verify() must be used instead. - This necessitated the support of an extra signature type NID_md5_sha1 - for SSL signatures and modifications to the SSL library to use it instead - of calling RSA_public_decrypt() and RSA_private_encrypt(). - [Steve Henson] - - *) Add new -verify -CAfile and -CApath options to the crl program, these - will lookup a CRL issuers certificate and verify the signature in a - similar way to the verify program. Tidy up the crl program so it - no longer accesses structures directly. Make the ASN1 CRL parsing a bit - less strict. It will now permit CRL extensions even if it is not - a V2 CRL: this will allow it to tolerate some broken CRLs. - [Steve Henson] - - *) Initialize all non-automatic variables each time one of the openssl - sub-programs is started (this is necessary as they may be started - multiple times from the "OpenSSL>" prompt). - [Lennart Bang, Bodo Moeller] - - *) Preliminary compilation option RSA_NULL which disables RSA crypto without - removing all other RSA functionality (this is what NO_RSA does). This - is so (for example) those in the US can disable those operations covered - by the RSA patent while allowing storage and parsing of RSA keys and RSA - key generation. - [Steve Henson] - - *) Non-copying interface to BIO pairs. - (still largely untested) - [Bodo Moeller] - - *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive - ASCII string. This was handled independently in various places before. - [Steve Henson] - - *) New functions UTF8_getc() and UTF8_putc() that parse and generate - UTF8 strings a character at a time. - [Steve Henson] - - *) Use client_version from client hello to select the protocol - (s23_srvr.c) and for RSA client key exchange verification - (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. - [Bodo Moeller] - - *) Add various utility functions to handle SPKACs, these were previously - handled by poking round in the structure internals. Added new function - NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to - print, verify and generate SPKACs. Based on an original idea from - Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. - [Steve Henson] - - *) RIPEMD160 is operational on all platforms and is back in 'make test'. - [Andy Polyakov] - - *) Allow the config file extension section to be overwritten on the - command line. Based on an original idea from Massimiliano Pala - <madwolf@comune.modena.it>. The new option is called -extensions - and can be applied to ca, req and x509. Also -reqexts to override - the request extensions in req and -crlexts to override the crl extensions - in ca. - [Steve Henson] - - *) Add new feature to the SPKAC handling in ca. Now you can include - the same field multiple times by preceding it by "XXXX." for example: - 1.OU="Unit name 1" - 2.OU="Unit name 2" - this is the same syntax as used in the req config file. - [Steve Henson] - - *) Allow certificate extensions to be added to certificate requests. These - are specified in a 'req_extensions' option of the req section of the - config file. They can be printed out with the -text option to req but - are otherwise ignored at present. - [Steve Henson] - - *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first - data read consists of only the final block it would not decrypted because - EVP_CipherUpdate() would correctly report zero bytes had been decrypted. - A misplaced 'break' also meant the decrypted final block might not be - copied until the next read. - [Steve Henson] - - *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added - a few extra parameters to the DH structure: these will be useful if - for example we want the value of 'q' or implement X9.42 DH. - [Steve Henson] - - *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and - provides hooks that allow the default DSA functions or functions on a - "per key" basis to be replaced. This allows hardware acceleration and - hardware key storage to be handled without major modification to the - library. Also added low level modexp hooks and CRYPTO_EX structure and - associated functions. - [Steve Henson] - - *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO - as "read only": it can't be written to and the buffer it points to will - not be freed. Reading from a read only BIO is much more efficient than - a normal memory BIO. This was added because there are several times when - an area of memory needs to be read from a BIO. The previous method was - to create a memory BIO and write the data to it, this results in two - copies of the data and an O(n^2) reading algorithm. There is a new - function BIO_new_mem_buf() which creates a read only memory BIO from - an area of memory. Also modified the PKCS#7 routines to use read only - memory BIOs. - [Steve Henson] - - *) Bugfix: ssl23_get_client_hello did not work properly when called in - state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of - a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, - but a retry condition occured while trying to read the rest. - [Bodo Moeller] - - *) The PKCS7_ENC_CONTENT_new() function was setting the content type as - NID_pkcs7_encrypted by default: this was wrong since this should almost - always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle - the encrypted data type: this is a more sensible place to put it and it - allows the PKCS#12 code to be tidied up that duplicated this - functionality. - [Steve Henson] - - *) Changed obj_dat.pl script so it takes its input and output files on - the command line. This should avoid shell escape redirection problems - under Win32. - [Steve Henson] - - *) Initial support for certificate extension requests, these are included - in things like Xenroll certificate requests. Included functions to allow - extensions to be obtained and added. - [Steve Henson] - - *) -crlf option to s_client and s_server for sending newlines as - CRLF (as required by many protocols). - [Bodo Moeller] - - Changes between 0.9.3a and 0.9.4 [09 Aug 1999] - - *) Install libRSAglue.a when OpenSSL is built with RSAref. - [Ralf S. Engelschall] - - *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. - [Andrija Antonijevic <TheAntony2@bigfoot.com>] - - *) Fix -startdate and -enddate (which was missing) arguments to 'ca' - program. - [Steve Henson] - - *) New function DSA_dup_DH, which duplicates DSA parameters/keys as - DH parameters/keys (q is lost during that conversion, but the resulting - DH parameters contain its length). - - For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is - much faster than DH_generate_parameters (which creates parameters - where p = 2*q + 1), and also the smaller q makes DH computations - much more efficient (160-bit exponentiation instead of 1024-bit - exponentiation); so this provides a convenient way to support DHE - ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of - utter importance to use - SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); - or - SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); - when such DH parameters are used, because otherwise small subgroup - attacks may become possible! - [Bodo Moeller] - - *) Avoid memory leak in i2d_DHparams. - [Bodo Moeller] - - *) Allow the -k option to be used more than once in the enc program: - this allows the same encrypted message to be read by multiple recipients. - [Steve Henson] - - *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts - an ASN1_OBJECT to a text string. If the "no_name" parameter is set then - it will always use the numerical form of the OID, even if it has a short - or long name. - [Steve Henson] - - *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp - method only got called if p,q,dmp1,dmq1,iqmp components were present, - otherwise bn_mod_exp was called. In the case of hardware keys for example - no private key components need be present and it might store extra data - in the RSA structure, which cannot be accessed from bn_mod_exp. - By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for - private key operations. - [Steve Henson] - - *) Added support for SPARC Linux. - [Andy Polyakov] - - *) pem_password_cb function type incompatibly changed from - typedef int pem_password_cb(char *buf, int size, int rwflag); - to - ....(char *buf, int size, int rwflag, void *userdata); - so that applications can pass data to their callbacks: - The PEM[_ASN1]_{read,write}... functions and macros now take an - additional void * argument, which is just handed through whenever - the password callback is called. - [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] - - New function SSL_CTX_set_default_passwd_cb_userdata. - - Compatibility note: As many C implementations push function arguments - onto the stack in reverse order, the new library version is likely to - interoperate with programs that have been compiled with the old - pem_password_cb definition (PEM_whatever takes some data that - happens to be on the stack as its last argument, and the callback - just ignores this garbage); but there is no guarantee whatsoever that - this will work. - - *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... - (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused - problems not only on Windows, but also on some Unix platforms. - To avoid problematic command lines, these definitions are now in an - auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl - for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). - [Bodo Moeller] - - *) MIPS III/IV assembler module is reimplemented. - [Andy Polyakov] - - *) More DES library cleanups: remove references to srand/rand and - delete an unused file. - [Ulf Möller] - - *) Add support for the the free Netwide assembler (NASM) under Win32, - since not many people have MASM (ml) and it can be hard to obtain. - This is currently experimental but it seems to work OK and pass all - the tests. Check out INSTALL.W32 for info. - [Steve Henson] - - *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections - without temporary keys kept an extra copy of the server key, - and connections with temporary keys did not free everything in case - of an error. - [Bodo Moeller] - - *) New function RSA_check_key and new openssl rsa option -check - for verifying the consistency of RSA keys. - [Ulf Moeller, Bodo Moeller] - - *) Various changes to make Win32 compile work: - 1. Casts to avoid "loss of data" warnings in p5_crpt2.c - 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned - comparison" warnings. - 3. Add sk_<TYPE>_sort to DEF file generator and do make update. - [Steve Henson] - - *) Add a debugging option to PKCS#5 v2 key generation function: when - you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and - derived keys are printed to stderr. - [Steve Henson] - - *) Copy the flags in ASN1_STRING_dup(). - [Roman E. Pavlov <pre@mo.msk.ru>] - - *) The x509 application mishandled signing requests containing DSA - keys when the signing key was also DSA and the parameters didn't match. - - It was supposed to omit the parameters when they matched the signing key: - the verifying software was then supposed to automatically use the CA's - parameters if they were absent from the end user certificate. - - Omitting parameters is no longer recommended. The test was also - the wrong way round! This was probably due to unusual behaviour in - EVP_cmp_parameters() which returns 1 if the parameters match. - This meant that parameters were omitted when they *didn't* match and - the certificate was useless. Certificates signed with 'ca' didn't have - this bug. - [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] - - *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. - The interface is as follows: - Applications can use - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); - "off" is now the default. - The library internally uses - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() - to disable memory-checking temporarily. - - Some inconsistent states that previously were possible (and were - even the default) are now avoided. - - -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time - with each memory chunk allocated; this is occasionally more helpful - than just having a counter. - - -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. - - -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future - extensions. - [Bodo Moeller] - - *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), - which largely parallels "options", but is for changing API behaviour, - whereas "options" are about protocol behaviour. - Initial "mode" flags are: - - SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when - a single record has been written. - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write - retries use the same buffer location. - (But all of the contents must be - copied!) - [Bodo Moeller] - - *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options - worked. - - *) Fix problems with no-hmac etc. - [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>] - - *) New functions RSA_get_default_method(), RSA_set_method() and - RSA_get_method(). These allows replacement of RSA_METHODs without having - to mess around with the internals of an RSA structure. - [Steve Henson] - - *) Fix memory leaks in DSA_do_sign and DSA_is_prime. - Also really enable memory leak checks in openssl.c and in some - test programs. - [Chad C. Mulligan, Bodo Moeller] - - *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess - up the length of negative integers. This has now been simplified to just - store the length when it is first determined and use it later, rather - than trying to keep track of where data is copied and updating it to - point to the end. - [Steve Henson, reported by Brien Wheeler - <bwheeler@authentica-security.com>] - - *) Add a new function PKCS7_signatureVerify. This allows the verification - of a PKCS#7 signature but with the signing certificate passed to the - function itself. This contrasts with PKCS7_dataVerify which assumes the - certificate is present in the PKCS#7 structure. This isn't always the - case: certificates can be omitted from a PKCS#7 structure and be - distributed by "out of band" means (such as a certificate database). - [Steve Henson] - - *) Complete the PEM_* macros with DECLARE_PEM versions to replace the - function prototypes in pem.h, also change util/mkdef.pl to add the - necessary function names. - [Steve Henson] - - *) mk1mf.pl (used by Windows builds) did not properly read the - options set by Configure in the top level Makefile, and Configure - was not even able to write more than one option correctly. - Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. - [Bodo Moeller] - - *) New functions CONF_load_bio() and CONF_load_fp() to allow a config - file to be loaded from a BIO or FILE pointer. The BIO version will - for example allow memory BIOs to contain config info. - [Steve Henson] - - *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. - Whoever hopes to achieve shared-library compatibility across versions - must use this, not the compile-time macro. - (Exercise 0.9.4: Which is the minimum library version required by - such programs?) - Note: All this applies only to multi-threaded programs, others don't - need locks. - [Bodo Moeller] - - *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests - through a BIO pair triggered the default case, i.e. - SSLerr(...,SSL_R_UNKNOWN_STATE). - [Bodo Moeller] - - *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications - can use the SSL library even if none of the specific BIOs is - appropriate. - [Bodo Moeller] - - *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value - for the encoded length. - [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] - - *) Add initial documentation of the X509V3 functions. - [Steve Henson] - - *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and - PEM_write_bio_PKCS8PrivateKey() that are equivalent to - PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more - secure PKCS#8 private key format with a high iteration count. - [Steve Henson] - - *) Fix determination of Perl interpreter: A perl or perl5 - _directory_ in $PATH was also accepted as the interpreter. - [Ralf S. Engelschall] - - *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking - wrong with it but it was very old and did things like calling - PEM_ASN1_read() directly and used MD5 for the hash not to mention some - unusual formatting. - [Steve Henson] - - *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed - to use the new extension code. - [Steve Henson] - - *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c - with macros. This should make it easier to change their form, add extra - arguments etc. Fix a few PEM prototypes which didn't have cipher as a - constant. - [Steve Henson] - - *) Add to configuration table a new entry that can specify an alternative - name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, - according to Mark Crispin <MRC@Panda.COM>. - [Bodo Moeller] - -#if 0 - *) DES CBC did not update the IV. Weird. - [Ben Laurie] -#else - des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. - Changing the behaviour of the former might break existing programs -- - where IV updating is needed, des_ncbc_encrypt can be used. -#endif - - *) When bntest is run from "make test" it drives bc to check its - calculations, as well as internally checking them. If an internal check - fails, it needs to cause bc to give a non-zero result or make test carries - on without noticing the failure. Fixed. - [Ben Laurie] - - *) DES library cleanups. - [Ulf Möller] - - *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be - used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit - ciphers. NOTE: although the key derivation function has been verified - against some published test vectors it has not been extensively tested - yet. Added a -v2 "cipher" option to pkcs8 application to allow the use - of v2.0. - [Steve Henson] - - *) Instead of "mkdir -p", which is not fully portable, use new - Perl script "util/mkdir-p.pl". - [Bodo Moeller] - - *) Rewrite the way password based encryption (PBE) is handled. It used to - assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter - structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms - but doesn't apply to PKCS#5 v2.0 where it can be something else. Now - the 'parameter' field of the AlgorithmIdentifier is passed to the - underlying key generation function so it must do its own ASN1 parsing. - This has also changed the EVP_PBE_CipherInit() function which now has a - 'parameter' argument instead of literal salt and iteration count values - and the function EVP_PBE_ALGOR_CipherInit() has been deleted. - [Steve Henson] - - *) Support for PKCS#5 v1.5 compatible password based encryption algorithms - and PKCS#8 functionality. New 'pkcs8' application linked to openssl. - Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE - KEY" because this clashed with PKCS#8 unencrypted string. Since this - value was just used as a "magic string" and not used directly its - value doesn't matter. - [Steve Henson] - - *) Introduce some semblance of const correctness to BN. Shame C doesn't - support mutable. - [Ben Laurie] - - *) "linux-sparc64" configuration (ultrapenguin). - [Ray Miller <ray.miller@oucs.ox.ac.uk>] - "linux-sparc" configuration. - [Christian Forster <fo@hawo.stw.uni-erlangen.de>] - - *) config now generates no-xxx options for missing ciphers. - [Ulf Möller] - - *) Support the EBCDIC character set (work in progress). - File ebcdic.c not yet included because it has a different license. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Support BS2000/OSD-POSIX. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Make callbacks for key generation use void * instead of char *. - [Ben Laurie] - - *) Make S/MIME samples compile (not yet tested). - [Ben Laurie] - - *) Additional typesafe stacks. - [Ben Laurie] - - *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). - [Bodo Moeller] - - - Changes between 0.9.3 and 0.9.3a [29 May 1999] - - *) New configuration variant "sco5-gcc". - - *) Updated some demos. - [Sean O Riordain, Wade Scholine] - - *) Add missing BIO_free at exit of pkcs12 application. - [Wu Zhigang] - - *) Fix memory leak in conf.c. - [Steve Henson] - - *) Updates for Win32 to assembler version of MD5. - [Steve Henson] - - *) Set #! path to perl in apps/der_chop to where we found it - instead of using a fixed path. - [Bodo Moeller] - - *) SHA library changes for irix64-mips4-cc. - [Andy Polyakov] - - *) Improvements for VMS support. - [Richard Levitte] - - - Changes between 0.9.2b and 0.9.3 [24 May 1999] - - *) Bignum library bug fix. IRIX 6 passes "make test" now! - This also avoids the problems with SC4.2 and unpatched SC5. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) New functions sk_num, sk_value and sk_set to replace the previous macros. - These are required because of the typesafe stack would otherwise break - existing code. If old code used a structure member which used to be STACK - and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with - sk_num or sk_value it would produce an error because the num, data members - are not present in STACK_OF. Now it just produces a warning. sk_set - replaces the old method of assigning a value to sk_value - (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code - that does this will no longer work (and should use sk_set instead) but - this could be regarded as a "questionable" behaviour anyway. - [Steve Henson] - - *) Fix most of the other PKCS#7 bugs. The "experimental" code can now - correctly handle encrypted S/MIME data. - [Steve Henson] - - *) Change type of various DES function arguments from des_cblock - (which means, in function argument declarations, pointer to char) - to des_cblock * (meaning pointer to array with 8 char elements), - which allows the compiler to do more typechecking; it was like - that back in SSLeay, but with lots of ugly casts. - - Introduce new type const_des_cblock. - [Bodo Moeller] - - *) Reorganise the PKCS#7 library and get rid of some of the more obvious - problems: find RecipientInfo structure that matches recipient certificate - and initialise the ASN1 structures properly based on passed cipher. - [Steve Henson] - - *) Belatedly make the BN tests actually check the results. - [Ben Laurie] - - *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion - to and from BNs: it was completely broken. New compilation option - NEG_PUBKEY_BUG to allow for some broken certificates that encode public - key elements as negative integers. - [Steve Henson] - - *) Reorganize and speed up MD5. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) VMS support. - [Richard Levitte <richard@levitte.org>] - - *) New option -out to asn1parse to allow the parsed structure to be - output to a file. This is most useful when combined with the -strparse - option to examine the output of things like OCTET STRINGS. - [Steve Henson] - - *) Make SSL library a little more fool-proof by not requiring any longer - that SSL_set_{accept,connect}_state be called before - SSL_{accept,connect} may be used (SSL_set_..._state is omitted - in many applications because usually everything *appeared* to work as - intended anyway -- now it really works as intended). - [Bodo Moeller] - - *) Move openssl.cnf out of lib/. - [Ulf Möller] - - *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall - -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes - -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ - [Ralf S. Engelschall] - - *) Various fixes to the EVP and PKCS#7 code. It may now be able to - handle PKCS#7 enveloped data properly. - [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] - - *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of - copying pointers. The cert_st handling is changed by this in - various ways (and thus what used to be known as ctx->default_cert - is now called ctx->cert, since we don't resort to s->ctx->[default_]cert - any longer when s->cert does not give us what we need). - ssl_cert_instantiate becomes obsolete by this change. - As soon as we've got the new code right (possibly it already is?), - we have solved a couple of bugs of the earlier code where s->cert - was used as if it could not have been shared with other SSL structures. - - Note that using the SSL API in certain dirty ways now will result - in different behaviour than observed with earlier library versions: - Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) - does not influence s as it used to. - - In order to clean up things more thoroughly, inside SSL_SESSION - we don't use CERT any longer, but a new structure SESS_CERT - that holds per-session data (if available); currently, this is - the peer's certificate chain and, for clients, the server's certificate - and temporary key. CERT holds only those values that can have - meaningful defaults in an SSL_CTX. - [Bodo Moeller] - - *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure - from the internal representation. Various PKCS#7 fixes: remove some - evil casts and set the enc_dig_alg field properly based on the signing - key type. - [Steve Henson] - - *) Allow PKCS#12 password to be set from the command line or the - environment. Let 'ca' get its config file name from the environment - variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' - and 'x509'). - [Steve Henson] - - *) Allow certificate policies extension to use an IA5STRING for the - organization field. This is contrary to the PKIX definition but - VeriSign uses it and IE5 only recognises this form. Document 'x509' - extension option. - [Steve Henson] - - *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, - without disallowing inline assembler and the like for non-pedantic builds. - [Ben Laurie] - - *) Support Borland C++ builder. - [Janez Jere <jj@void.si>, modified by Ulf Möller] - - *) Support Mingw32. - [Ulf Möller] - - *) SHA-1 cleanups and performance enhancements. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Sparc v8plus assembler for the bignum library. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Accept any -xxx and +xxx compiler options in Configure. - [Ulf Möller] - - *) Update HPUX configuration. - [Anonymous] - - *) Add missing sk_<type>_unshift() function to safestack.h - [Ralf S. Engelschall] - - *) New function SSL_CTX_use_certificate_chain_file that sets the - "extra_cert"s in addition to the certificate. (This makes sense - only for "PEM" format files, as chains as a whole are not - DER-encoded.) - [Bodo Moeller] - - *) Support verify_depth from the SSL API. - x509_vfy.c had what can be considered an off-by-one-error: - Its depth (which was not part of the external interface) - was actually counting the number of certificates in a chain; - now it really counts the depth. - [Bodo Moeller] - - *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used - instead of X509err, which often resulted in confusing error - messages since the error codes are not globally unique - (e.g. an alleged error in ssl3_accept when a certificate - didn't match the private key). - - *) New function SSL_CTX_set_session_id_context that allows to set a default - value (so that you don't need SSL_set_session_id_context for each - connection using the SSL_CTX). - [Bodo Moeller] - - *) OAEP decoding bug fix. - [Ulf Möller] - - *) Support INSTALL_PREFIX for package builders, as proposed by - David Harris. - [Bodo Moeller] - - *) New Configure options "threads" and "no-threads". For systems - where the proper compiler options are known (currently Solaris - and Linux), "threads" is the default. - [Bodo Moeller] - - *) New script util/mklink.pl as a faster substitute for util/mklink.sh. - [Bodo Moeller] - - *) Install various scripts to $(OPENSSLDIR)/misc, not to - $(INSTALLTOP)/bin -- they shouldn't clutter directories - such as /usr/local/bin. - [Bodo Moeller] - - *) "make linux-shared" to build shared libraries. - [Niels Poppe <niels@netbox.org>] - - *) New Configure option no-<cipher> (rsa, idea, rc5, ...). - [Ulf Möller] - - *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for - extension adding in x509 utility. - [Steve Henson] - - *) Remove NOPROTO sections and error code comments. - [Ulf Möller] - - *) Partial rewrite of the DEF file generator to now parse the ANSI - prototypes. - [Steve Henson] - - *) New Configure options --prefix=DIR and --openssldir=DIR. - [Ulf Möller] - - *) Complete rewrite of the error code script(s). It is all now handled - by one script at the top level which handles error code gathering, - header rewriting and C source file generation. It should be much better - than the old method: it now uses a modified version of Ulf's parser to - read the ANSI prototypes in all header files (thus the old K&R definitions - aren't needed for error creation any more) and do a better job of - translating function codes into names. The old 'ASN1 error code imbedded - in a comment' is no longer necessary and it doesn't use .err files which - have now been deleted. Also the error code call doesn't have to appear all - on one line (which resulted in some large lines...). - [Steve Henson] - - *) Change #include filenames from <foo.h> to <openssl/foo.h>. - [Bodo Moeller] - - *) Change behaviour of ssl2_read when facing length-0 packets: Don't return - 0 (which usually indicates a closed connection), but continue reading. - [Bodo Moeller] - - *) Fix some race conditions. - [Bodo Moeller] - - *) Add support for CRL distribution points extension. Add Certificate - Policies and CRL distribution points documentation. - [Steve Henson] - - *) Move the autogenerated header file parts to crypto/opensslconf.h. - [Ulf Möller] - - *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of - 8 of keying material. Merlin has also confirmed interop with this fix - between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. - [Merlin Hughes <merlin@baltimore.ie>] - - *) Fix lots of warnings. - [Richard Levitte <levitte@stacken.kth.se>] - - *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if - the directory spec didn't end with a LIST_SEPARATOR_CHAR. - [Richard Levitte <levitte@stacken.kth.se>] - - *) Fix problems with sizeof(long) == 8. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Change functions to ANSI C. - [Ulf Möller] - - *) Fix typos in error codes. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller] - - *) Remove defunct assembler files from Configure. - [Ulf Möller] - - *) SPARC v8 assembler BIGNUM implementation. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Support for Certificate Policies extension: both print and set. - Various additions to support the r2i method this uses. - [Steve Henson] - - *) A lot of constification, and fix a bug in X509_NAME_oneline() that could - return a const string when you are expecting an allocated buffer. - [Ben Laurie] - - *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE - types DirectoryString and DisplayText. - [Steve Henson] - - *) Add code to allow r2i extensions to access the configuration database, - add an LHASH database driver and add several ctx helper functions. - [Steve Henson] - - *) Fix an evil bug in bn_expand2() which caused various BN functions to - fail when they extended the size of a BIGNUM. - [Steve Henson] - - *) Various utility functions to handle SXNet extension. Modify mkdef.pl to - support typesafe stack. - [Steve Henson] - - *) Fix typo in SSL_[gs]et_options(). - [Nils Frostberg <nils@medcom.se>] - - *) Delete various functions and files that belonged to the (now obsolete) - old X509V3 handling code. - [Steve Henson] - - *) New Configure option "rsaref". - [Ulf Möller] - - *) Don't auto-generate pem.h. - [Bodo Moeller] - - *) Introduce type-safe ASN.1 SETs. - [Ben Laurie] - - *) Convert various additional casted stacks to type-safe STACK_OF() variants. - [Ben Laurie, Ralf S. Engelschall, Steve Henson] - - *) Introduce type-safe STACKs. This will almost certainly break lots of code - that links with OpenSSL (well at least cause lots of warnings), but fear - not: the conversion is trivial, and it eliminates loads of evil casts. A - few STACKed things have been converted already. Feel free to convert more. - In the fullness of time, I'll do away with the STACK type altogether. - [Ben Laurie] - - *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate - specified in <certfile> by updating the entry in the index.txt file. - This way one no longer has to edit the index.txt file manually for - revoking a certificate. The -revoke option does the gory details now. - [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] - - *) Fix `openssl crl -noout -text' combination where `-noout' killed the - `-text' option at all and this way the `-noout -text' combination was - inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. - [Ralf S. Engelschall] - - *) Make sure a corresponding plain text error message exists for the - X509_V_ERR_CERT_REVOKED/23 error number which can occur when a - verify callback function determined that a certificate was revoked. - [Ralf S. Engelschall] - - *) Bugfix: In test/testenc, don't test "openssl <cipher>" for - ciphers that were excluded, e.g. by -DNO_IDEA. Also, test - all available cipers including rc5, which was forgotten until now. - In order to let the testing shell script know which algorithms - are available, a new (up to now undocumented) command - "openssl list-cipher-commands" is used. - [Bodo Moeller] - - *) Bugfix: s_client occasionally would sleep in select() when - it should have checked SSL_pending() first. - [Bodo Moeller] - - *) New functions DSA_do_sign and DSA_do_verify to provide access to - the raw DSA values prior to ASN.1 encoding. - [Ulf Möller] - - *) Tweaks to Configure - [Niels Poppe <niels@netbox.org>] - - *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, - yet... - [Steve Henson] - - *) New variables $(RANLIB) and $(PERL) in the Makefiles. - [Ulf Möller] - - *) New config option to avoid instructions that are illegal on the 80386. - The default code is faster, but requires at least a 486. - [Ulf Möller] - - *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and - SSL2_SERVER_VERSION (not used at all) macros, which are now the - same as SSL2_VERSION anyway. - [Bodo Moeller] - - *) New "-showcerts" option for s_client. - [Bodo Moeller] - - *) Still more PKCS#12 integration. Add pkcs12 application to openssl - application. Various cleanups and fixes. - [Steve Henson] - - *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and - modify error routines to work internally. Add error codes and PBE init - to library startup routines. - [Steve Henson] - - *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and - packing functions to asn1 and evp. Changed function names and error - codes along the way. - [Steve Henson] - - *) PKCS12 integration: and so it begins... First of several patches to - slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 - objects to objects.h - [Steve Henson] - - *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 - and display support for Thawte strong extranet extension. - [Steve Henson] - - *) Add LinuxPPC support. - [Jeff Dubrule <igor@pobox.org>] - - *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to - bn_div_words in alpha.s. - [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] - - *) Make sure the RSA OAEP test is skipped under -DRSAref because - OAEP isn't supported when OpenSSL is built with RSAref. - [Ulf Moeller <ulf@fitug.de>] - - *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h - so they no longer are missing under -DNOPROTO. - [Soren S. Jorvang <soren@t.dk>] - - - Changes between 0.9.1c and 0.9.2b [22 Mar 1999] - - *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still - doesn't work when the session is reused. Coming soon! - [Ben Laurie] - - *) Fix a security hole, that allows sessions to be reused in the wrong - context thus bypassing client cert protection! All software that uses - client certs and session caches in multiple contexts NEEDS PATCHING to - allow session reuse! A fuller solution is in the works. - [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] - - *) Some more source tree cleanups (removed obsolete files - crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed - permission on "config" script to be executable) and a fix for the INSTALL - document. - [Ulf Moeller <ulf@fitug.de>] - - *) Remove some legacy and erroneous uses of malloc, free instead of - Malloc, Free. - [Lennart Bang <lob@netstream.se>, with minor changes by Steve] - - *) Make rsa_oaep_test return non-zero on error. - [Ulf Moeller <ulf@fitug.de>] - - *) Add support for native Solaris shared libraries. Configure - solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice - if someone would make that last step automatic. - [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] - - *) ctx_size was not built with the right compiler during "make links". Fixed. - [Ben Laurie] - - *) Change the meaning of 'ALL' in the cipher list. It now means "everything - except NULL ciphers". This means the default cipher list will no longer - enable NULL ciphers. They need to be specifically enabled e.g. with - the string "DEFAULT:eNULL". - [Steve Henson] - - *) Fix to RSA private encryption routines: if p < q then it would - occasionally produce an invalid result. This will only happen with - externally generated keys because OpenSSL (and SSLeay) ensure p > q. - [Steve Henson] - - *) Be less restrictive and allow also `perl util/perlpath.pl - /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', - because this way one can also use an interpreter named `perl5' (which is - usually the name of Perl 5.xxx on platforms where an Perl 4.x is still - installed as `perl'). - [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] - - *) Let util/clean-depend.pl work also with older Perl 5.00x versions. - [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] - - *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add - advapi32.lib to Win32 build and change the pem test comparision - to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the - suggestion). Fix misplaced ASNI prototypes and declarations in evp.h - and crypto/des/ede_cbcm_enc.c. - [Steve Henson] - - *) DES quad checksum was broken on big-endian architectures. Fixed. - [Ben Laurie] - - *) Comment out two functions in bio.h that aren't implemented. Fix up the - Win32 test batch file so it (might) work again. The Win32 test batch file - is horrible: I feel ill.... - [Steve Henson] - - *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected - in e_os.h. Audit of header files to check ANSI and non ANSI - sections: 10 functions were absent from non ANSI section and not exported - from Windows DLLs. Fixed up libeay.num for new functions. - [Steve Henson] - - *) Make `openssl version' output lines consistent. - [Ralf S. Engelschall] - - *) Fix Win32 symbol export lists for BIO functions: Added - BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data - to ms/libeay{16,32}.def. - [Ralf S. Engelschall] - - *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled - fine under Unix and passes some trivial tests I've now added. But the - whole stuff is horribly incomplete, so a README.1ST with a disclaimer was - added to make sure no one expects that this stuff really works in the - OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources - up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and - openssl_bio.xs. - [Ralf S. Engelschall] - - *) Fix the generation of two part addresses in perl. - [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] - - *) Add config entry for Linux on MIPS. - [John Tobey <jtobey@channel1.com>] - - *) Make links whenever Configure is run, unless we are on Windoze. - [Ben Laurie] - - *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. - Currently only issuerAltName and AuthorityKeyIdentifier make any sense - in CRLs. - [Steve Henson] - - *) Add a useful kludge to allow package maintainers to specify compiler and - other platforms details on the command line without having to patch the - Configure script everytime: One now can use ``perl Configure - <id>:<details>'', i.e. platform ids are allowed to have details appended - to them (seperated by colons). This is treated as there would be a static - pre-configured entry in Configure's %table under key <id> with value - <details> and ``perl Configure <id>'' is called. So, when you want to - perform a quick test-compile under FreeBSD 3.1 with pgcc and without - assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' - now, which overrides the FreeBSD-elf entry on-the-fly. - [Ralf S. Engelschall] - - *) Disable new TLS1 ciphersuites by default: they aren't official yet. - [Ben Laurie] - - *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified - on the `perl Configure ...' command line. This way one can compile - OpenSSL libraries with Position Independent Code (PIC) which is needed - for linking it into DSOs. - [Ralf S. Engelschall] - - *) Remarkably, export ciphers were totally broken and no-one had noticed! - Fixed. - [Ben Laurie] - - *) Cleaned up the LICENSE document: The official contact for any license - questions now is the OpenSSL core team under openssl-core@openssl.org. - And add a paragraph about the dual-license situation to make sure people - recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply - to the OpenSSL toolkit. - [Ralf S. Engelschall] - - *) General source tree makefile cleanups: Made `making xxx in yyy...' - display consistent in the source tree and replaced `/bin/rm' by `rm'. - Additonally cleaned up the `make links' target: Remove unnecessary - semicolons, subsequent redundant removes, inline point.sh into mklink.sh - to speed processing and no longer clutter the display with confusing - stuff. Instead only the actually done links are displayed. - [Ralf S. Engelschall] - - *) Permit null encryption ciphersuites, used for authentication only. It used - to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. - It is now necessary to set SSL_FORBID_ENULL to prevent the use of null - encryption. - [Ben Laurie] - - *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder - signed attributes when verifying signatures (this would break them), - the detached data encoding was wrong and public keys obtained using - X509_get_pubkey() weren't freed. - [Steve Henson] - - *) Add text documentation for the BUFFER functions. Also added a work around - to a Win95 console bug. This was triggered by the password read stuff: the - last character typed gets carried over to the next fread(). If you were - generating a new cert request using 'req' for example then the last - character of the passphrase would be CR which would then enter the first - field as blank. - [Steve Henson] - - *) Added the new `Includes OpenSSL Cryptography Software' button as - doc/openssl_button.{gif,html} which is similar in style to the old SSLeay - button and can be used by applications based on OpenSSL to show the - relationship to the OpenSSL project. - [Ralf S. Engelschall] - - *) Remove confusing variables in function signatures in files - ssl/ssl_lib.c and ssl/ssl.h. - [Lennart Bong <lob@kulthea.stacken.kth.se>] - - *) Don't install bss_file.c under PREFIX/include/ - [Lennart Bong <lob@kulthea.stacken.kth.se>] - - *) Get the Win32 compile working again. Modify mkdef.pl so it can handle - functions that return function pointers and has support for NT specific - stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various - #ifdef WIN32 and WINNTs sprinkled about the place and some changes from - unsigned to signed types: this was killing the Win32 compile. - [Steve Henson] - - *) Add new certificate file to stack functions, - SSL_add_dir_cert_subjects_to_stack() and - SSL_add_file_cert_subjects_to_stack(). These largely supplant - SSL_load_client_CA_file(), and can be used to add multiple certs easily - to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). - This means that Apache-SSL and similar packages don't have to mess around - to add as many CAs as they want to the preferred list. - [Ben Laurie] - - *) Experiment with doxygen documentation. Currently only partially applied to - ssl/ssl_lib.c. - See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with - openssl.doxy as the configuration file. - [Ben Laurie] - - *) Get rid of remaining C++-style comments which strict C compilers hate. - [Ralf S. Engelschall, pointed out by Carlos Amengual] - - *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not - compiled in by default: it has problems with large keys. - [Steve Henson] - - *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and - DH private keys and/or callback functions which directly correspond to - their SSL_CTX_xxx() counterparts but work on a per-connection basis. This - is needed for applications which have to configure certificates on a - per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis - (e.g. s_server). - For the RSA certificate situation is makes no difference, but - for the DSA certificate situation this fixes the "no shared cipher" - problem where the OpenSSL cipher selection procedure failed because the - temporary keys were not overtaken from the context and the API provided - no way to reconfigure them. - The new functions now let applications reconfigure the stuff and they - are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, - SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new - non-public-API function ssl_cert_instantiate() is used as a helper - function and also to reduce code redundancy inside ssl_rsa.c. - [Ralf S. Engelschall] - - *) Move s_server -dcert and -dkey options out of the undocumented feature - area because they are useful for the DSA situation and should be - recognized by the users. - [Ralf S. Engelschall] - - *) Fix the cipher decision scheme for export ciphers: the export bits are - *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within - SSL_EXP_MASK. So, the original variable has to be used instead of the - already masked variable. - [Richard Levitte <levitte@stacken.kth.se>] - - *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c - [Richard Levitte <levitte@stacken.kth.se>] - - *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() - from `int' to `unsigned int' because it's a length and initialized by - EVP_DigestFinal() which expects an `unsigned int *'. - [Richard Levitte <levitte@stacken.kth.se>] - - *) Don't hard-code path to Perl interpreter on shebang line of Configure - script. Instead use the usual Shell->Perl transition trick. - [Ralf S. Engelschall] - - *) Make `openssl x509 -noout -modulus' functional also for DSA certificates - (in addition to RSA certificates) to match the behaviour of `openssl dsa - -noout -modulus' as it's already the case for `openssl rsa -noout - -modulus'. For RSA the -modulus is the real "modulus" while for DSA - currently the public key is printed (a decision which was already done by - `openssl dsa -modulus' in the past) which serves a similar purpose. - Additionally the NO_RSA no longer completely removes the whole -modulus - option; it now only avoids using the RSA stuff. Same applies to NO_DSA - now, too. - [Ralf S. Engelschall] - - *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested - BIO. See the source (crypto/evp/bio_ok.c) for more info. - [Arne Ansper <arne@ats.cyber.ee>] - - *) Dump the old yucky req code that tried (and failed) to allow raw OIDs - to be added. Now both 'req' and 'ca' can use new objects defined in the - config file. - [Steve Henson] - - *) Add cool BIO that does syslog (or event log on NT). - [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] - - *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, - TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and - TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher - Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. - [Ben Laurie] - - *) Add preliminary config info for new extension code. - [Steve Henson] - - *) Make RSA_NO_PADDING really use no padding. - [Ulf Moeller <ulf@fitug.de>] - - *) Generate errors when private/public key check is done. - [Ben Laurie] - - *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support - for some CRL extensions and new objects added. - [Steve Henson] - - *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private - key usage extension and fuller support for authority key id. - [Steve Henson] - - *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved - padding method for RSA, which is recommended for new applications in PKCS - #1 v2.0 (RFC 2437, October 1998). - OAEP (Optimal Asymmetric Encryption Padding) has better theoretical - foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure - against Bleichbacher's attack on RSA. - [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by - Ben Laurie] - - *) Updates to the new SSL compression code - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Fix so that the version number in the master secret, when passed - via RSA, checks that if TLS was proposed, but we roll back to SSLv3 - (because the server will not accept higher), that the version number - is 0x03,0x01, not 0x03,0x00 - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory - leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes - in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c - [Steve Henson] - - *) Support for RAW extensions where an arbitrary extension can be - created by including its DER encoding. See apps/openssl.cnf for - an example. - [Steve Henson] - - *) Make sure latest Perl versions don't interpret some generated C array - code as Perl array code in the crypto/err/err_genc.pl script. - [Lars Weber <3weber@informatik.uni-hamburg.de>] - - *) Modify ms/do_ms.bat to not generate assembly language makefiles since - not many people have the assembler. Various Win32 compilation fixes and - update to the INSTALL.W32 file with (hopefully) more accurate Win32 - build instructions. - [Steve Henson] - - *) Modify configure script 'Configure' to automatically create crypto/date.h - file under Win32 and also build pem.h from pem.org. New script - util/mkfiles.pl to create the MINFO file on environments that can't do a - 'make files': perl util/mkfiles.pl >MINFO should work. - [Steve Henson] - - *) Major rework of DES function declarations, in the pursuit of correctness - and purity. As a result, many evil casts evaporated, and some weirdness, - too. You may find this causes warnings in your code. Zapping your evil - casts will probably fix them. Mostly. - [Ben Laurie] - - *) Fix for a typo in asn1.h. Bug fix to object creation script - obj_dat.pl. It considered a zero in an object definition to mean - "end of object": none of the objects in objects.h have any zeros - so it wasn't spotted. - [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] - - *) Add support for Triple DES Cipher Block Chaining with Output Feedback - Masking (CBCM). In the absence of test vectors, the best I have been able - to do is check that the decrypt undoes the encrypt, so far. Send me test - vectors if you have them. - [Ben Laurie] - - *) Correct calculation of key length for export ciphers (too much space was - allocated for null ciphers). This has not been tested! - [Ben Laurie] - - *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage - message is now correct (it understands "crypto" and "ssl" on its - command line). There is also now an "update" option. This will update - the util/ssleay.num and util/libeay.num files with any new functions. - If you do a: - perl util/mkdef.pl crypto ssl update - it will update them. - [Steve Henson] - - *) Overhauled the Perl interface (perl/*): - - ported BN stuff to OpenSSL's different BN library - - made the perl/ source tree CVS-aware - - renamed the package from SSLeay to OpenSSL (the files still contain - their history because I've copied them in the repository) - - removed obsolete files (the test scripts will be replaced - by better Test::Harness variants in the future) - [Ralf S. Engelschall] - - *) First cut for a very conservative source tree cleanup: - 1. merge various obsolete readme texts into doc/ssleay.txt - where we collect the old documents and readme texts. - 2. remove the first part of files where I'm already sure that we no - longer need them because of three reasons: either they are just temporary - files which were left by Eric or they are preserved original files where - I've verified that the diff is also available in the CVS via "cvs diff - -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for - the crypto/md/ stuff). - [Ralf S. Engelschall] - - *) More extension code. Incomplete support for subject and issuer alt - name, issuer and authority key id. Change the i2v function parameters - and add an extra 'crl' parameter in the X509V3_CTX structure: guess - what that's for :-) Fix to ASN1 macro which messed up - IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. - [Steve Henson] - - *) Preliminary support for ENUMERATED type. This is largely copied from the - INTEGER code. - [Steve Henson] - - *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Make sure `make rehash' target really finds the `openssl' program. - [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] - - *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd - like to hear about it if this slows down other processors. - [Ben Laurie] - - *) Add CygWin32 platform information to Configure script. - [Alan Batie <batie@aahz.jf.intel.com>] - - *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' - [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] - - *) New program nseq to manipulate netscape certificate sequences - [Steve Henson] - - *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a - few typos. - [Steve Henson] - - *) Fixes to BN code. Previously the default was to define BN_RECURSION - but the BN code had some problems that would cause failures when - doing certificate verification and some other functions. - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Add ASN1 and PEM code to support netscape certificate sequences. - [Steve Henson] - - *) Add ASN1 and PEM code to support netscape certificate sequences. - [Steve Henson] - - *) Add several PKIX and private extended key usage OIDs. - [Steve Henson] - - *) Modify the 'ca' program to handle the new extension code. Modify - openssl.cnf for new extension format, add comments. - [Steve Henson] - - *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' - and add a sample to openssl.cnf so req -x509 now adds appropriate - CA extensions. - [Steve Henson] - - *) Continued X509 V3 changes. Add to other makefiles, integrate with the - error code, add initial support to X509_print() and x509 application. - [Steve Henson] - - *) Takes a deep breath and start addding X509 V3 extension support code. Add - files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this - stuff is currently isolated and isn't even compiled yet. - [Steve Henson] - - *) Continuing patches for GeneralizedTime. Fix up certificate and CRL - ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. - Removed the versions check from X509 routines when loading extensions: - this allows certain broken certificates that don't set the version - properly to be processed. - [Steve Henson] - - *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another - Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which - can still be regenerated with "make depend". - [Ben Laurie] - - *) Spelling mistake in C version of CAST-128. - [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] - - *) Changes to the error generation code. The perl script err-code.pl - now reads in the old error codes and retains the old numbers, only - adding new ones if necessary. It also only changes the .err files if new - codes are added. The makefiles have been modified to only insert errors - when needed (to avoid needlessly modifying header files). This is done - by only inserting errors if the .err file is newer than the auto generated - C file. To rebuild all the error codes from scratch (the old behaviour) - either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl - or delete all the .err files. - [Steve Henson] - - *) CAST-128 was incorrectly implemented for short keys. The C version has - been fixed, but is untested. The assembler versions are also fixed, but - new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing - to regenerate it if needed. - [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun - Hagino <itojun@kame.net>] - - *) File was opened incorrectly in randfile.c. - [Ulf Möller <ulf@fitug.de>] - - *) Beginning of support for GeneralizedTime. d2i, i2d, check and print - functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or - GeneralizedTime. ASN1_TIME is the proper type used in certificates et - al: it's just almost always a UTCTime. Note this patch adds new error - codes so do a "make errors" if there are problems. - [Steve Henson] - - *) Correct Linux 1 recognition in config. - [Ulf Möller <ulf@fitug.de>] - - *) Remove pointless MD5 hash when using DSA keys in ca. - [Anonymous <nobody@replay.com>] - - *) Generate an error if given an empty string as a cert directory. Also - generate an error if handed NULL (previously returned 0 to indicate an - error, but didn't set one). - [Ben Laurie, reported by Anonymous <nobody@replay.com>] - - *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. - [Ben Laurie] - - *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct - parameters. This was causing a warning which killed off the Win32 compile. - [Steve Henson] - - *) Remove C++ style comments from crypto/bn/bn_local.h. - [Neil Costigan <neil.costigan@celocom.com>] - - *) The function OBJ_txt2nid was broken. It was supposed to return a nid - based on a text string, looking up short and long names and finally - "dot" format. The "dot" format stuff didn't work. Added new function - OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote - OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the - OID is not part of the table. - [Steve Henson] - - *) Add prototypes to X509 lookup/verify methods, fixing a bug in - X509_LOOKUP_by_alias(). - [Ben Laurie] - - *) Sort openssl functions by name. - [Ben Laurie] - - *) Get the gendsa program working (hopefully) and add it to app list. Remove - encryption from sample DSA keys (in case anyone is interested the password - was "1234"). - [Steve Henson] - - *) Make _all_ *_free functions accept a NULL pointer. - [Frans Heymans <fheymans@isaserver.be>] - - *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use - NULL pointers. - [Anonymous <nobody@replay.com>] - - *) s_server should send the CAfile as acceptable CAs, not its own cert. - [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] - - *) Don't blow it for numeric -newkey arguments to apps/req. - [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] - - *) Temp key "for export" tests were wrong in s3_srvr.c. - [Anonymous <nobody@replay.com>] - - *) Add prototype for temp key callback functions - SSL_CTX_set_tmp_{rsa,dh}_callback(). - [Ben Laurie] - - *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and - DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). - [Steve Henson] - - *) X509_name_add_entry() freed the wrong thing after an error. - [Arne Ansper <arne@ats.cyber.ee>] - - *) rsa_eay.c would attempt to free a NULL context. - [Arne Ansper <arne@ats.cyber.ee>] - - *) BIO_s_socket() had a broken should_retry() on Windoze. - [Arne Ansper <arne@ats.cyber.ee>] - - *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. - [Arne Ansper <arne@ats.cyber.ee>] - - *) Make sure the already existing X509_STORE->depth variable is initialized - in X509_STORE_new(), but document the fact that this variable is still - unused in the certificate verification process. - [Ralf S. Engelschall] - - *) Fix the various library and apps files to free up pkeys obtained from - X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. - [Steve Henson] - - *) Fix reference counting in X509_PUBKEY_get(). This makes - demos/maurice/example2.c work, amongst others, probably. - [Steve Henson and Ben Laurie] - - *) First cut of a cleanup for apps/. First the `ssleay' program is now named - `openssl' and second, the shortcut symlinks for the `openssl <command>' - are no longer created. This way we have a single and consistent command - line interface `openssl <command>', similar to `cvs <command>'. - [Ralf S. Engelschall, Paul Sutton and Ben Laurie] - - *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey - BIT STRING wrapper always have zero unused bits. - [Steve Henson] - - *) Add CA.pl, perl version of CA.sh, add extended key usage OID. - [Steve Henson] - - *) Make the top-level INSTALL documentation easier to understand. - [Paul Sutton] - - *) Makefiles updated to exit if an error occurs in a sub-directory - make (including if user presses ^C) [Paul Sutton] - - *) Make Montgomery context stuff explicit in RSA data structure. - [Ben Laurie] - - *) Fix build order of pem and err to allow for generated pem.h. - [Ben Laurie] - - *) Fix renumbering bug in X509_NAME_delete_entry(). - [Ben Laurie] - - *) Enhanced the err-ins.pl script so it makes the error library number - global and can add a library name. This is needed for external ASN1 and - other error libraries. - [Steve Henson] - - *) Fixed sk_insert which never worked properly. - [Steve Henson] - - *) Fix ASN1 macros so they can handle indefinite length construted - EXPLICIT tags. Some non standard certificates use these: they can now - be read in. - [Steve Henson] - - *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) - into a single doc/ssleay.txt bundle. This way the information is still - preserved but no longer messes up this directory. Now it's new room for - the new set of documenation files. - [Ralf S. Engelschall] - - *) SETs were incorrectly DER encoded. This was a major pain, because they - shared code with SEQUENCEs, which aren't coded the same. This means that - almost everything to do with SETs or SEQUENCEs has either changed name or - number of arguments. - [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] - - *) Fix test data to work with the above. - [Ben Laurie] - - *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but - was already fixed by Eric for 0.9.1 it seems. - [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>] - - *) Autodetect FreeBSD3. - [Ben Laurie] - - *) Fix various bugs in Configure. This affects the following platforms: - nextstep - ncr-scde - unixware-2.0 - unixware-2.0-pentium - sco5-cc. - [Ben Laurie] - - *) Eliminate generated files from CVS. Reorder tests to regenerate files - before they are needed. - [Ben Laurie] - - *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). - [Ben Laurie] - - - Changes between 0.9.1b and 0.9.1c [23-Dec-1998] - - *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and - changed SSLeay to OpenSSL in version strings. - [Ralf S. Engelschall] - - *) Some fixups to the top-level documents. - [Paul Sutton] - - *) Fixed the nasty bug where rsaref.h was not found under compile-time - because the symlink to include/ was missing. - [Ralf S. Engelschall] - - *) Incorporated the popular no-RSA/DSA-only patches - which allow to compile a RSA-free SSLeay. - [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] - - *) Fixed nasty rehash problem under `make -f Makefile.ssl links' - when "ssleay" is still not found. - [Ralf S. Engelschall] - - *) Added more platforms to Configure: Cray T3E, HPUX 11, - [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] - - *) Updated the README file. - [Ralf S. Engelschall] - - *) Added various .cvsignore files in the CVS repository subdirs - to make a "cvs update" really silent. - [Ralf S. Engelschall] - - *) Recompiled the error-definition header files and added - missing symbols to the Win32 linker tables. - [Ralf S. Engelschall] - - *) Cleaned up the top-level documents; - o new files: CHANGES and LICENSE - o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay - o merged COPYRIGHT into LICENSE - o removed obsolete TODO file - o renamed MICROSOFT to INSTALL.W32 - [Ralf S. Engelschall] - - *) Removed dummy files from the 0.9.1b source tree: - crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi - crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f - crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f - crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f - util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f - [Ralf S. Engelschall] - - *) Added various platform portability fixes. - [Mark J. Cox] - - *) The Genesis of the OpenSSL rpject: - We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. - Young and Tim J. Hudson created while they were working for C2Net until - summer 1998. - [The OpenSSL Project] - - - Changes between 0.9.0b and 0.9.1b [not released] - - *) Updated a few CA certificates under certs/ - [Eric A. Young] - - *) Changed some BIGNUM api stuff. - [Eric A. Young] - - *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, - DGUX x86, Linux Alpha, etc. - [Eric A. Young] - - *) New COMP library [crypto/comp/] for SSL Record Layer Compression: - RLE (dummy implemented) and ZLIB (really implemented when ZLIB is - available). - [Eric A. Young] - - *) Add -strparse option to asn1pars program which parses nested - binary structures - [Dr Stephen Henson <shenson@bigfoot.com>] - - *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. - [Eric A. Young] - - *) DSA fix for "ca" program. - [Eric A. Young] - - *) Added "-genkey" option to "dsaparam" program. - [Eric A. Young] - - *) Added RIPE MD160 (rmd160) message digest. - [Eric A. Young] - - *) Added -a (all) option to "ssleay version" command. - [Eric A. Young] - - *) Added PLATFORM define which is the id given to Configure. - [Eric A. Young] - - *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. - [Eric A. Young] - - *) Extended the ASN.1 parser routines. - [Eric A. Young] - - *) Extended BIO routines to support REUSEADDR, seek, tell, etc. - [Eric A. Young] - - *) Added a BN_CTX to the BN library. - [Eric A. Young] - - *) Fixed the weak key values in DES library - [Eric A. Young] - - *) Changed API in EVP library for cipher aliases. - [Eric A. Young] - - *) Added support for RC2/64bit cipher. - [Eric A. Young] - - *) Converted the lhash library to the crypto/mem.c functions. - [Eric A. Young] - - *) Added more recognized ASN.1 object ids. - [Eric A. Young] - - *) Added more RSA padding checks for SSL/TLS. - [Eric A. Young] - - *) Added BIO proxy/filter functionality. - [Eric A. Young] - - *) Added extra_certs to SSL_CTX which can be used - send extra CA certificates to the client in the CA cert chain sending - process. It can be configured with SSL_CTX_add_extra_chain_cert(). - [Eric A. Young] - - *) Now Fortezza is denied in the authentication phase because - this is key exchange mechanism is not supported by SSLeay at all. - [Eric A. Young] - - *) Additional PKCS1 checks. - [Eric A. Young] - - *) Support the string "TLSv1" for all TLS v1 ciphers. - [Eric A. Young] - - *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the - ex_data index of the SSL context in the X509_STORE_CTX ex_data. - [Eric A. Young] - - *) Fixed a few memory leaks. - [Eric A. Young] - - *) Fixed various code and comment typos. - [Eric A. Young] - - *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 - bytes sent in the client random. - [Edward Bishop <ebishop@spyglass.com>] - |