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freebsd-dev/crypto/openssl/CHANGES
Jacques Vidrine 499810c08e Import of OpenSSL 0.9.6g.
2002-08-10 01:48:01 +00:00

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OpenSSL CHANGES
_______________
Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
*) [In 0.9.6g-engine release:]
Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
[Lynn Gazis <lgazis@rainbow.com>]
Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
*) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
and get fix the header length calculation.
[Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
Alon Kantor <alonk@checkpoint.com> (and others),
Steve Henson]
*) Use proper error handling instead of 'assertions' in buffer
overflow checks added in 0.9.6e. This prevents DoS (the
assertions could call abort()).
[Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
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 M<>ller, 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 M<>ller, Bodo M<>ller]
*) 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 M<>ller]
*) rand_win.c fix for Borland C.
[Ulf M<>ller]
*) 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 M<>ller]
*) Add DSO method for VMS.
[Richard Levitte]
*) Bug fix: Montgomery multiplication could produce results with the
wrong sign.
[Ulf M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller, 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller, 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) More tests in bntest.c, and changed test_bn output.
[Ulf M<>ller]
*) ./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 M<>ller]
*) 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 M<>ller]
*) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
for p == 0.
[Ulf M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller, Bodo M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller, 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) Support Mingw32.
[Ulf M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) Partial rewrite of the DEF file generator to now parse the ANSI
prototypes.
[Steve Henson]
*) New Configure options --prefix=DIR and --openssldir=DIR.
[Ulf M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) Fix typos in error codes.
[Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M<>ller]
*) Remove defunct assembler files from Configure.
[Ulf M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) 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 M<>ller]
*) New config option to avoid instructions that are illegal on the 80386.
The default code is faster, but requires at least a 486.
[Ulf M<>ller]
*) 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 M<>ller <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 M<>ller <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 M<>ller <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>]
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