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Older
Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
*) Avoid a race condition when CRLs are checked in a multi threaded
environment. This would happen due to the reordering of the revoked
entries during signature checking and serial number lookup. Now the
encoding is cached and the serial number sort performed under a lock.
Add new STACK function sk_is_sorted().
[Steve Henson]
*) Add Delta CRL to the extension code.
[Steve Henson]
*) Various fixes to s3_pkt.c so alerts are sent properly.
[David Holmes <d.holmes@f5.com>]
*) Reduce the chances of duplicate issuer name and serial numbers (in
violation of RFC3280) using the OpenSSL certificate creation utilities.
This is done by creating a random 64 bit value for the initial serial
number when a serial number file is created or when a self signed
certificate is created using 'openssl req -x509'. The initial serial
number file is created using 'openssl x509 -next_serial' in CA.pl
rather than being initialized to 1.
[Steve Henson]
Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
*) Fix null-pointer assignment in do_change_cipher_spec() revealed
by using the Codenomicon TLS Test Tool (CVE-2004-0079)
[Joe Orton, Steve Henson]
*) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
[Joe Orton, Steve Henson]
*) Make it possible to have multiple active certificates with the same
subject in the CA index file. This is done only if the keyword
'unique_subject' is set to 'no' in the main CA section (default
if 'CA_default') of the configuration file. The value is saved
with the database itself in a separate index attribute file,
named like the index file with '.attr' appended to the name.
[Richard Levitte]
*) X509 verify fixes. Disable broken certificate workarounds when
X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
keyUsage extension present. Don't accept CRLs with unhandled critical
extensions: since verify currently doesn't process CRL extensions this
rejects a CRL with *any* critical extensions. Add new verify error codes
for these cases.
[Steve Henson]
*) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
A clarification of RFC2560 will require the use of OCTET STRINGs and
some implementations cannot handle the current raw format. Since OpenSSL
copies and compares OCSP nonces as opaque blobs without any attempt at
parsing them this should not create any compatibility issues.
[Steve Henson]
*) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
this HMAC (and other) operations are several times slower than OpenSSL
< 0.9.7.
[Steve Henson]
*) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
[Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
*) Use the correct content when signing type "other".
[Steve Henson]
Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
*) Fix various bugs revealed by running the NISCC test suite:
Stop out of bounds reads in the ASN1 code when presented with
Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
If verify callback ignores invalid public key errors don't try to check
certificate signature with the NULL public key.
[Steve Henson]
*) New -ignore_err option in ocsp application to stop the server
exiting on the first error in a request.
[Steve Henson]
*) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
if the server requested one: as stated in TLS 1.0 and SSL 3.0
specifications.
[Steve Henson]
*) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
extra data after the compression methods not only for TLS 1.0
but also for SSL 3.0 (as required by the specification).
[Bodo Moeller; problem pointed out by Matthias Loepfe]
*) Change X509_certificate_type() to mark the key as exported/exportable
when it's 512 *bits* long, not 512 bytes.
[Richard Levitte]
*) Change AES_cbc_encrypt() so it outputs exact multiple of
blocks during encryption.
[Richard Levitte]
*) Various fixes to base64 BIO and non blocking I/O. On write
flushes were not handled properly if the BIO retried. On read
data was not being buffered properly and had various logic bugs.
This also affects blocking I/O when the data being decoded is a
certain size.
[Steve Henson]
*) Various S/MIME bugfixes and compatibility changes:
output correct application/pkcs7 MIME type if
PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
of files as .eml work). Correctly handle very long lines in MIME
parser.
[Steve Henson]
Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
Richard Levitte
committed
*) Countermeasure against the Klima-Pokorny-Rosa extension of
Bleichbacher's attack on PKCS #1 v1.5 padding: treat
a protocol version number mismatch like a decryption error
in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
[Bodo Moeller]
*) Turn on RSA blinding by default in the default implementation
to avoid a timing attack. Applications that don't want it can call
RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
They would be ill-advised to do so in most cases.
[Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
*) Change RSA blinding code so that it works when the PRNG is not
seeded (in this case, the secret RSA exponent is abused as
an unpredictable seed -- if it is not unpredictable, there
is no point in blinding anyway). Make RSA blinding thread-safe
by remembering the creator's thread ID in rsa->blinding and
having all other threads use local one-time blinding factors
(this requires more computation than sharing rsa->blinding, but
avoids excessive locking; and if an RSA object is not shared
between threads, blinding will still be very fast).
[Bodo Moeller]
*) Fixed a typo bug that would cause ENGINE_set_default() to set an
ENGINE as defaults for all supported algorithms irrespective of
the 'flags' parameter. 'flags' is now honoured, so applications
should make sure they are passing it correctly.
[Geoff Thorpe]
*) Target "mingw" now allows native Windows code to be generated in
the Cygwin environment as well as with the MinGW compiler.
[Ulf Moeller]
Richard Levitte
committed
Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
*) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
via timing by performing a MAC computation even if incorrrect
block cipher padding has been found. This is a countermeasure
against active attacks where the attacker has to distinguish
between bad padding and a MAC verification error. (CVE-2003-0078)
[Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
Martin Vuagnoux (EPFL, Ilion)]
*) Make the no-err option work as intended. The intention with no-err
is not to have the whole error stack handling routines removed from
libcrypto, it's only intended to remove all the function name and
reason texts, thereby removing some of the footprint that may not
be interesting if those errors aren't displayed anyway.
NOTE: it's still possible for any application or module to have it's
own set of error texts inserted. The routines are there, just not
used by default when no-err is given.
[Richard Levitte]
*) Add support for FreeBSD on IA64.
[dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
*) Adjust DES_cbc_cksum() so it returns the same value as the MIT
Kerberos function mit_des_cbc_cksum(). Before this change,
the value returned by DES_cbc_cksum() was like the one from
mit_des_cbc_cksum(), except the bytes were swapped.
[Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
*) Allow an application to disable the automatic SSL chain building.
Before this a rather primitive chain build was always performed in
ssl3_output_cert_chain(): an application had no way to send the
correct chain if the automatic operation produced an incorrect result.
Now the chain builder is disabled if either:
1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
The reasoning behind this is that an application would not want the
auto chain building to take place if extra chain certificates are
present and it might also want a means of sending no additional
certificates (for example the chain has two certificates and the
root is omitted).
[Steve Henson]
*) Add the possibility to build without the ENGINE framework.
[Steven Reddie <smr@essemer.com.au> via Richard Levitte]
*) Under Win32 gmtime() can return NULL: check return value in
OPENSSL_gmtime(). Add error code for case where gmtime() fails.
[Steve Henson]
*) DSA routines: under certain error conditions uninitialized BN objects
could be freed. Solution: make sure initialization is performed early
enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
Nils Larsch <nla@trustcenter.de> via PR#459)
[Lutz Jaenicke]
*) Another fix for SSLv2 session ID handling: the session ID was incorrectly
checked on reconnect on the client side, therefore session resumption
could still fail with a "ssl session id is different" error. This
behaviour is masked when SSL_OP_ALL is used due to
SSL_OP_MICROSOFT_SESS_ID_BUG being set.
Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
followup to PR #377.
[Lutz Jaenicke]
*) IA-32 assembler support enhancements: unified ELF targets, support
for SCO/Caldera platforms, fix for Cygwin shared build.
[Andy Polyakov]
*) Add support for FreeBSD on sparc64. As a consequence, support for
FreeBSD on non-x86 processors is separate from x86 processors on
the config script, much like the NetBSD support.
[Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
OpenSSL 0.9.7.]
*) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
code (06) was taken as the first octet of the session ID and the last
octet was ignored consequently. As a result SSLv2 client side session
caching could not have worked due to the session ID mismatch between
client and server.
Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
PR #377.
[Lutz Jaenicke]
Richard Levitte
committed
*) Change the declaration of needed Kerberos libraries to use EX_LIBS
instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
removed entirely.
[Richard Levitte]
*) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
Richard Levitte
committed
seems that in spite of existing for more than a year, many application
author have done nothing to provide the necessary callbacks, which
means that this particular engine will not work properly anywhere.
This is a very unfortunate situation which forces us, in the name
of usability, to give the hw_ncipher.c a static lock, which is part
of libcrypto.
NOTE: This is for the 0.9.7 series ONLY. This hack will never
appear in 0.9.8 or later. We EXPECT application authors to have
dealt properly with this when 0.9.8 is released (unless we actually
make such changes in the libcrypto locking code that changes will
have to be made anyway).
[Richard Levitte]
*) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
octets have been read, EOF or an error occurs. Without this change
some truncated ASN1 structures will not produce an error.
[Steve Henson]
*) Disable Heimdal support, since it hasn't been fully implemented.
Still give the possibility to force the use of Heimdal, but with
warnings and a request that patches get sent to openssl-dev.
[Richard Levitte]
*) Add the VC-CE target, introduce the WINCE sysname, and add
INSTALL.WCE and appropriate conditionals to make it build.
[Steven Reddie <smr@essemer.com.au> via Richard Levitte]
*) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
cygssl-x.y.z.dll, where x, y and z are the major, minor and
edit numbers of the version.
[Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
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*) Introduce safe string copy and catenation functions
(BUF_strlcpy() and BUF_strlcat()).
[Ben Laurie (CHATS) and Richard Levitte]
*) Avoid using fixed-size buffers for one-line DNs.
[Ben Laurie (CHATS)]
*) Add BUF_MEM_grow_clean() to avoid information leakage when
resizing buffers containing secrets, and use where appropriate.
[Ben Laurie (CHATS)]
*) Avoid using fixed size buffers for configuration file location.
[Ben Laurie (CHATS)]
*) Avoid filename truncation for various CA files.
[Ben Laurie (CHATS)]
*) Use sizeof in preference to magic numbers.
[Ben Laurie (CHATS)]
*) Avoid filename truncation in cert requests.
[Ben Laurie (CHATS)]
*) Add assertions to check for (supposedly impossible) buffer
overflows.
[Ben Laurie (CHATS)]
*) Don't cache truncated DNS entries in the local cache (this could
potentially lead to a spoofing attack).
[Ben Laurie (CHATS)]
*) Fix various buffers to be large enough for hex/decimal
representations in a platform independent manner.
[Ben Laurie (CHATS)]
*) Add CRYPTO_realloc_clean() to avoid information leakage when
resizing buffers containing secrets, and use where appropriate.
[Ben Laurie (CHATS)]
*) Add BIO_indent() to avoid much slightly worrying code to do
indents.
[Ben Laurie (CHATS)]
*) Convert sprintf()/BIO_puts() to BIO_printf().
[Ben Laurie (CHATS)]
*) buffer_gets() could terminate with the buffer only half
full. Fixed.
[Ben Laurie (CHATS)]
*) Add assertions to prevent user-supplied crypto functions from
overflowing internal buffers by having large block sizes, etc.
[Ben Laurie (CHATS)]
*) New OPENSSL_assert() macro (similar to assert(), but enabled
unconditionally).
[Ben Laurie (CHATS)]
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*) Eliminate unused copy of key in RC4.
[Ben Laurie (CHATS)]
*) Eliminate unused and incorrectly sized buffers for IV in pem.h.
[Ben Laurie (CHATS)]
*) Fix off-by-one error in EGD path.
[Ben Laurie (CHATS)]
*) If RANDFILE path is too long, ignore instead of truncating.
[Ben Laurie (CHATS)]
*) Eliminate unused and incorrectly sized X.509 structure
CBCParameter.
[Ben Laurie (CHATS)]
*) Eliminate unused and dangerous function knumber().
[Ben Laurie (CHATS)]
*) Eliminate unused and dangerous structure, KSSL_ERR.
[Ben Laurie (CHATS)]
*) Protect against overlong session ID context length in an encoded
session object. Since these are local, this does not appear to be
exploitable.
[Ben Laurie (CHATS)]
*) Change from security patch (see 0.9.6e below) that did not affect
the 0.9.6 release series:
Remote buffer overflow in SSL3 protocol - an attacker could
supply an oversized master key in Kerberos-enabled versions.
*) Change the SSL kerb5 codes to match RFC 2712.
[Richard Levitte]
*) Make -nameopt work fully for req and add -reqopt switch.
[Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
*) The "block size" for block ciphers in CFB and OFB mode should be 1.
[Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
*) Make sure tests can be performed even if the corresponding algorithms
have been removed entirely. This was also the last step to make
OpenSSL compilable with DJGPP under all reasonable conditions.
[Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
*) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
to allow version independent disabling of normally unselected ciphers,
which may be activated as a side-effect of selecting a single cipher.
(E.g., cipher list string "RSA" enables ciphersuites that are left
out of "ALL" because they do not provide symmetric encryption.
"RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
[Lutz Jaenicke, Bodo Moeller]
*) Add appropriate support for separate platform-dependent build
directories. The recommended way to make a platform-dependent
build directory is the following (tested on Linux), maybe with
some local tweaks:
# Place yourself outside of the OpenSSL source tree. In
# this example, the environment variable OPENSSL_SOURCE
# is assumed to contain the absolute OpenSSL source directory.
mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
cd objtree/"`uname -s`-`uname -r`-`uname -m`"
(cd $OPENSSL_SOURCE; find . -type f) | while read F; do
mkdir -p `dirname $F`
ln -s $OPENSSL_SOURCE/$F $F
done
To be absolutely sure not to disturb the source tree, a "make clean"
is a good thing. If it isn't successfull, don't worry about it,
it probably means the source directory is very clean.
[Richard Levitte]
*) Make sure any ENGINE control commands make local copies of string
pointers passed to them whenever necessary. Otherwise it is possible
the caller may have overwritten (or deallocated) the original string
data when a later ENGINE operation tries to use the stored values.
[Götz Babin-Ebell <babinebell@trustcenter.de>]
*) Improve diagnostics in file reading and command-line digests.
[Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
*) Add AES modes CFB and OFB to the object database. Correct an
error in AES-CFB decryption.
[Richard Levitte]
*) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
allows existing EVP_CIPHER_CTX structures to be reused after
calling EVP_*Final(). This behaviour is used by encryption
BIOs and some applications. This has the side effect that
applications must explicitly clean up cipher contexts with
EVP_CIPHER_CTX_cleanup() or they will leak memory.
[Steve Henson]
*) Check the values of dna and dnb in bn_mul_recursive before calling
bn_mul_comba (a non zero value means the a or b arrays do not contain
n2 elements) and fallback to bn_mul_normal if either is not zero.
[Steve Henson]
*) Fix escaping of non-ASCII characters when using the -subj option
of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
[Lutz Jaenicke]
*) Make object definitions compliant to LDAP (RFC2256): SN is the short
form for "surname", serialNumber has no short form.
Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
therefore remove "mail" short name for "internet 7".
The OID for unique identifiers in X509 certificates is
x500UniqueIdentifier, not uniqueIdentifier.
Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
*) Add an "init" command to the ENGINE config module and auto initialize
ENGINEs. Without any "init" command the ENGINE will be initialized
after all ctrl commands have been executed on it. If init=1 the
ENGINE is initailized at that point (ctrls before that point are run
on the uninitialized ENGINE and after on the initialized one). If
init=0 then the ENGINE will not be iniatialized at all.
[Steve Henson]
*) Fix the 'app_verify_callback' interface so that the user-defined
argument is actually passed to the callback: In the
SSL_CTX_set_cert_verify_callback() prototype, the callback
declaration has been changed from
int (*cb)()
into
int (*cb)(X509_STORE_CTX *,void *);
in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
i=s->ctx->app_verify_callback(&ctx)
has been changed into
i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
To update applications using SSL_CTX_set_cert_verify_callback(),
a dummy argument can be added to their callback functions.
[D. K. Smetters <smetters@parc.xerox.com>]
*) Added the '4758cca' ENGINE to support IBM 4758 cards.
[Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
*) Add and OPENSSL_LOAD_CONF define which will cause
OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
This allows older applications to transparently support certain
OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
Two new functions OPENSSL_add_all_algorithms_noconf() which will never
load the config file and OPENSSL_add_all_algorithms_conf() which will
always load it have also been added.
[Steve Henson]
*) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
Adjust NIDs and EVP layer.
[Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
*) Config modules support in openssl utility.
Most commands now load modules from the config file,
though in a few (such as version) this isn't done
because it couldn't be used for anything.
In the case of ca and req the config file used is
the same as the utility itself: that is the -config
command line option can be used to specify an
alternative file.
[Steve Henson]
*) Move default behaviour from OPENSSL_config(). If appname is NULL
use "openssl_conf" if filename is NULL use default openssl config file.
[Steve Henson]
*) Add an argument to OPENSSL_config() to allow the use of an alternative
config section name. Add a new flag to tolerate a missing config file
and move code to CONF_modules_load_file().
[Steve Henson]
*) Support for crypto accelerator cards from Accelerated Encryption
Processing, www.aep.ie. (Use engine 'aep')
The support was copied from 0.9.6c [engine] and adapted/corrected
to work with the new engine framework.
[AEP Inc. and Richard Levitte]
*) Support for SureWare crypto accelerator cards from Baltimore
Technologies. (Use engine 'sureware')
The support was copied from 0.9.6c [engine] and adapted
to work with the new engine framework.
[Richard Levitte]
*) Have the CHIL engine fork-safe (as defined by nCipher) and actually
make the newer ENGINE framework commands for the CHIL engine work.
[Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
*) Make it possible to produce shared libraries on ReliantUNIX.
[Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
*) Add the configuration target debug-linux-ppro.
Make 'openssl rsa' use the general key loading routines
implemented in apps.c, and make those routines able to
handle the key format FORMAT_NETSCAPE and the variant
FORMAT_IISSGC.
[Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
*) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
[Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
*) Add -keyform to rsautl, and document -engine.
[Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
*) Change BIO_new_file (crypto/bio/bss_file.c) to use new
BIO_R_NO_SUCH_FILE error code rather than the generic
ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
[Ben Laurie]
ERR_peek_last_error
ERR_peek_last_error_line
ERR_peek_last_error_line_data.
These are similar to
ERR_peek_error
ERR_peek_error_line
ERR_peek_error_line_data,
but report on the latest error recorded rather than the first one
still in the error queue.
[Ben Laurie, Bodo Moeller]
*) default_algorithms option in ENGINE config module. This allows things
like:
default_algorithms = ALL
default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
[Steve Henson]
*) Prelminary ENGINE config module.
*) New experimental application configuration code.
*) Change the AES code to follow the same name structure as all other
symmetric ciphers, and behave the same way. Move everything to
the directory crypto/aes, thereby obsoleting crypto/rijndael.
[Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
*) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
*) Add option to output public keys in req command.
[Massimiliano Pala madwolf@openca.org]
*) Use wNAFs in EC_POINTs_mul() for improved efficiency
(up to about 10% better than before for P-192 and P-224).
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SSL_CTX_set_msg_callback(ctx, cb)
SSL_CTX_set_msg_callback_arg(ctx, arg)
SSL_set_msg_callback(ssl, cb)
SSL_set_msg_callback_arg(ssl, arg)
to request calling a callback function
void cb(int write_p, int version, int content_type,
const void *buf, size_t len, SSL *ssl, void *arg)
whenever a protocol message has been completely received
(write_p == 0) or sent (write_p == 1). Here 'version' is the
protocol version according to which the SSL library interprets
the current protocol message (SSL2_VERSION, SSL3_VERSION, or
TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
the content type as defined in the SSL 3.0/TLS 1.0 protocol
specification (change_cipher_spec(20), alert(21), handshake(22)).
'buf' and 'len' point to the actual message, 'ssl' to the
SSL object, and 'arg' is the application-defined value set by
SSL[_CTX]_set_msg_callback_arg().
'openssl s_client' and 'openssl s_server' have new '-msg' options
to enable a callback that displays all protocol messages.
[Bodo Moeller]
*) Change the shared library support so shared libraries are built as
soon as the corresponding static library is finished, and thereby get
openssl and the test programs linked against the shared library.
This still only happens when the keyword "shard" has been given to
the configuration scripts.
NOTE: shared library support is still an experimental thing, and
backward binary compatibility is still not guaranteed.
["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
*) Add support for Subject Information Access extension.
[Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
*) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
additional bytes when new memory had to be allocated, not just
when reusing an existing buffer.
[Bodo Moeller]
*) New command line and configuration option 'utf8' for the req command.
This allows field values to be specified as UTF8 strings.
[Steve Henson]
*) Add -multi and -mr options to "openssl speed" - giving multiple parallel
Ben Laurie
committed
runs for the former and machine-readable output for the latter.
[Ben Laurie]
*) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
of the e-mail address in the DN (i.e., it will go into a certificate
extension only). The new configuration file option 'email_in_dn = no'
has the same effect.
[Massimiliano Pala madwolf@openca.org]
*) Change all functions with names starting with des_ to be starting
with DES_ instead. Add wrappers that are compatible with libdes,
but are named _ossl_old_des_*. Finally, add macros that map the
Richard Levitte
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des_* symbols to the corresponding _ossl_old_des_* if libdes
compatibility is desired. If OpenSSL 0.9.6c compatibility is
desired, the des_* symbols will be mapped to DES_*, with one
exception.
Richard Levitte
committed
Since we provide two compatibility mappings, the user needs to
define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
compatibility is desired. The default (i.e., when that macro
isn't defined) is OpenSSL 0.9.6c compatibility.
There are also macros that enable and disable the support of old
des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
are defined, the default will apply: to support the old des routines.
In either case, one must include openssl/des.h to get the correct
definitions. Do not try to just include openssl/des_old.h, that
won't work.
NOTE: This is a major break of an old API into a new one. Software
authors are encouraged to switch to the DES_ style functions. Some
time in the future, des_old.h and the libdes compatibility functions
Richard Levitte
committed
will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
default), and then completely removed.
[Richard Levitte]
*) Test for certificates which contain unsupported critical extensions.
If such a certificate is found during a verify operation it is
rejected by default: this behaviour can be overridden by either
handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
X509_supported_extension() has also been added which returns 1 if a
particular extension is supported.
[Steve Henson]
*) Modify the behaviour of EVP cipher functions in similar way to digests
to retain compatibility with existing code.
[Steve Henson]
*) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
compatibility with existing code. In particular the 'ctx' parameter does
not have to be to be initialized before the call to EVP_DigestInit() and
it is tidied up after a call to EVP_DigestFinal(). New function
EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
EVP_MD_CTX_copy() changed to not require the destination to be
initialized valid and new function EVP_MD_CTX_copy_ex() added which
requires the destination to be valid.
Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
*) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
so that complete 'Handshake' protocol structures are kept in memory
instead of overwriting 'msg_type' and 'length' with 'body' data.
[Bodo Moeller]
*) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
[Massimo Santin via Richard Levitte]
*) Major restructuring to the underlying ENGINE code. This includes
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reduction of linker bloat, separation of pure "ENGINE" manipulation
(initialisation, etc) from functionality dealing with implementations
of specific crypto iterfaces. This change also introduces integrated
support for symmetric ciphers and digest implementations - so ENGINEs
can now accelerate these by providing EVP_CIPHER and EVP_MD
implementations of their own. This is detailed in crypto/engine/README
as it couldn't be adequately described here. However, there are a few
API changes worth noting - some RSA, DSA, DH, and RAND functions that
were changed in the original introduction of ENGINE code have now
reverted back - the hooking from this code to ENGINE is now a good
deal more passive and at run-time, operations deal directly with
RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
dereferencing through an ENGINE pointer any more. Also, the ENGINE
functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
they were not being used by the framework as there is no concept of a
BIGNUM_METHOD and they could not be generalised to the new
'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
ENGINE_cpy() has been removed as it cannot be consistently defined in
the new code.
[Geoff Thorpe]
*) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
*) Change mkdef.pl to sort symbols that get the same entry number,
and make sure the automatically generated functions ERR_load_*
become part of libeay.num as well.
[Richard Levitte]
*) New function SSL_renegotiate_pending(). This returns true once
renegotiation has been requested (either SSL_renegotiate() call
or HelloRequest/ClientHello receveived from the peer) and becomes
false once a handshake has been completed.
(For servers, SSL_renegotiate() followed by SSL_do_handshake()
sends a HelloRequest, but does not ensure that a handshake takes
place. SSL_renegotiate_pending() is useful for checking if the
client has followed the request.)
[Bodo Moeller]
*) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
By default, clients may request session resumption even during
renegotiation (if session ID contexts permit); with this option,
session resumption is possible only in the first handshake.
SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
more bits available for options that should not be part of
SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
*) Add some demos for certificate and certificate request creation.
*) Make maximum certificate chain size accepted from the peer application
settable (SSL*_get/set_max_cert_list()), as proposed by
"Douglas E. Engert" <deengert@anl.gov>.
[Lutz Jaenicke]
*) Add support for shared libraries for Unixware-7
(Boyd Lynn Gerber <gerberb@zenez.com>).
[Lutz Jaenicke]
*) Add a "destroy" handler to ENGINEs that allows structural cleanup to
be done prior to destruction. Use this to unload error strings from
ENGINEs that load their own error strings. NB: This adds two new API
functions to "get" and "set" this destroy handler in an ENGINE.
*) Alter all existing ENGINE implementations (except "openssl" and
"openbsd") to dynamically instantiate their own error strings. This
makes them more flexible to be built both as statically-linked ENGINEs
and self-contained shared-libraries loadable via the "dynamic" ENGINE.
Also, add stub code to each that makes building them as self-contained
shared-libraries easier (see README.ENGINE).
[Geoff Thorpe]
*) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
implementations into applications that are completely implemented in
self-contained shared-libraries. The "dynamic" ENGINE exposes control
commands that can be used to configure what shared-library to load and
to control aspects of the way it is handled. Also, made an update to
the README.ENGINE file that brings its information up-to-date and
provides some information and instructions on the "dynamic" ENGINE
(ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
[Geoff Thorpe]
*) Make it possible to unload ranges of ERR strings with a new
"ERR_unload_strings" function.
[Geoff Thorpe]
*) Add a copy() function to EVP_MD.
[Ben Laurie]
*) Make EVP_MD routines take a context pointer instead of just the
[Ben Laurie]
*) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
that the digest can only process a single chunk of data
(typically because it is provided by a piece of
hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
is only going to provide a single chunk of data, and hence the
framework needn't accumulate the data for oneshot drivers.
[Ben Laurie]
*) As with "ERR", make it possible to replace the underlying "ex_data"
functions. This change also alters the storage and management of global
ex_data state - it's now all inside ex_data.c and all "class" code (eg.
RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
index counters. The API functions that use this state have been changed
to take a "class_index" rather than pointers to the class's local STACK
and counter, and there is now an API function to dynamically create new
classes. This centralisation allows us to (a) plug a lot of the
thread-safety problems that existed, and (b) makes it possible to clean
up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
such data would previously have always leaked in application code and
workarounds were in place to make the memory debugging turn a blind eye
to it. Application code that doesn't use this new function will still
leak as before, but their memory debugging output will announce it now
rather than letting it slide.
Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
has a return value to indicate success or failure.
*) Make it possible to replace the underlying "ERR" functions such that the
global state (2 LHASH tables and 2 locks) is only used by the "default"
implementation. This change also adds two functions to "get" and "set"
the implementation prior to it being automatically set the first time
any other ERR function takes place. Ie. an application can call "get",
pass the return value to a module it has just loaded, and that module
can call its own "set" function using that value. This means the
module's "ERR" operations will use (and modify) the error state in the
application and not in its own statically linked copy of OpenSSL code.
[Geoff Thorpe]
*) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
reference counts. This performs normal REF_PRINT/REF_CHECK macros on
the operation, and provides a more encapsulated way for external code
(crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
to use these functions rather than manually incrementing the counts.
Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
*) Add symmetric cipher support to ENGINE. Expect the API to change!
*) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
These allow a CRL to be built without having to access X509_CRL fields
directly. Modify 'ca' application to use new functions.
[Steve Henson]
*) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
bug workarounds. Rollback attack detection is a security feature.
The problem will only arise on OpenSSL servers when TLSv1 is not
available (sslv3_server_method() or SSL_OP_NO_TLSv1).
Software authors not wanting to support TLSv1 will have special reasons
for their choice and can explicitly enable this option.
[Bodo Moeller, Lutz Jaenicke]
*) Rationalise EVP so it can be extended: don't include a union of
cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
(similar to those existing for EVP_CIPHER_CTX).
Usage example:
EVP_MD_CTX md;
EVP_MD_CTX_init(&md); /* new function call */
EVP_DigestInit(&md, EVP_sha1());
EVP_DigestUpdate(&md, in, len);
EVP_DigestFinal(&md, out, NULL);
EVP_MD_CTX_cleanup(&md); /* new function call */
*) Make DES key schedule conform to the usual scheme, as well as
correcting its structure. This means that calls to DES functions
now have to pass a pointer to a des_key_schedule instead of a
plain des_key_schedule (which was actually always a pointer
anyway): E.g.,
des_key_schedule ks;
des_set_key_checked(..., &ks);
des_ncbc_encrypt(..., &ks, ...);
(Note that a later change renames 'des_...' into 'DES_...'.)
*) Initial reduction of linker bloat: the use of some functions, such as
PEM causes large amounts of unused functions to be linked in due to
poor organisation. For example pem_all.c contains every PEM function
which has a knock on effect of linking in large amounts of (unused)
ASN1 code. Grouping together similar functions and splitting unrelated
functions prevents this.
[Steve Henson]
*) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
correct _ecb suffix.
[Ben Laurie]
*) Add initial OCSP responder support to ocsp application. The
revocation information is handled using the text based index
use by the ca application. The responder can either handle
requests generated internally, supplied in files (for example
via a CGI script) or using an internal minimal server.
[Steve Henson]
*) Add configuration choices to get zlib compression for TLS.
[Richard Levitte]
*) Changes to Kerberos SSL for RFC 2712 compliance:
1. Implemented real KerberosWrapper, instead of just using
KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2. Implemented optional authenticator field of KerberosWrapper.
Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
and authenticator structs; see crypto/krb5/.
Generalized Kerberos calls to support multiple Kerberos libraries.
[Vern Staats <staatsvr@asc.hpc.mil>,
Jeffrey Altman <jaltman@columbia.edu>
via Richard Levitte]
*) Cause 'openssl speed' to use fully hard-coded DSA keys as it
already does with RSA. testdsa.h now has 'priv_key/pub_key'
values for each of the key sizes rather than having just
parameters (and 'speed' generating keys each time).
[Geoff Thorpe]
Before:
encrypt
type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
decrypt
des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
After:
encrypt
des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
*) Rewrite apps to use NCONF routines instead of the old CONF. New functions
to support NCONF routines in extension code. New function CONF_set_nconf()
to allow functions which take an NCONF to also handle the old LHASH
structure: this means that the old CONF compatible routines can be
retained (in particular wrt extensions) without having to duplicate the
code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
[Steve Henson]
*) Enhance the general user interface with mechanisms for inner control
*) Change all calls to low level digest routines in the library and
applications to use EVP. Add missing calls to HMAC_cleanup() and
don't assume HMAC_CTX can be copied using memcpy().
[Verdon Walker <VWalker@novell.com>, Steve Henson]