OpenSSL CHANGES
_______________
- Changes between 0.9.6 and 0.9.7 [xx XXX 2000]
+ Changes between 0.9.7 and 0.9.8 [xx XXX 2002]
+
+ *) Add a function EC_GROUP_check_discriminant() (defined via
+ EC_METHOD) that verifies that the curve discriminant is non-zero.
+
+ Add a function EC_GROUP_check() that makes some sanity tests
+ on a EC_GROUP, its generator and order. This includes
+ EC_GROUP_check_discriminant().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add ECDSA in new directory crypto/ecdsa/.
+
+ Add applications 'openssl ecdsaparam' and 'openssl ecdsa'
+ (these are variants of 'openssl dsaparam' and 'openssl dsa').
+
+ ECDSA support is also included in various other files across the
+ library. Most notably,
+ - 'openssl req' now has a '-newkey ecdsa:file' option;
+ - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
+ - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
+ d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
+ them suitable for ECDSA where domain parameters must be
+ extracted before the specific public key.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Include some named elliptic curves, and add OIDs from X9.62,
+ SECG, and WAP/WTLS. The curves can be obtained from the new
+ functions
+ EC_GROUP_new_by_nid()
+ EC_GROUP_new_by_name()
+ Also add a 'nid' field to EC_GROUP objects, which can be accessed
+ via
+ EC_GROUP_set_nid()
+ EC_GROUP_get_nid()
+ [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
+
+ Changes between 0.9.6d and 0.9.7 [XX xxx 2002]
- *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
- with des_encrypt() defined on some operating systems, like Solaris
- and UnixWare.
+ *) Make object definitions compliant to LDAP (RFC2256): SN is the short
+ form for "surname", serialNumber has no short form (Michael Bell
+ <michael.bell@rz.hu-berlin.de>).
+ [Lutz Jaenicke]
+
+ *) 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]
- *) 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]
+ *) 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]
- *) 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.
+ *) 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]
+
+ *) Add new functions
+ 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]
- *) Enhance bctest to search for a working bc along $PATH and print
- it when found.
- [Tim Rice <tim@multitalents.net> via Richard Levitte]
+ *) Prelminary ENGINE config module.
+ [Steve Henson]
+
+ *) New experimental application configuration code.
+ [Steve Henson]
+
+ *) 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.
+ [Ben Laurie and Theo de Raadt]
+
+ *) 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).
+ [Bodo Moeller]
+
+ *) New functions/macros
+
+ 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
+ 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
+ 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.
+
+ 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
+ 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().
+ [Steve Henson]
+
+ *) 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
+ 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.
+ [Steve Henson]
+
+ *) 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.
+ [Bodo Moeller]
+
+ *) Add some demos for certificate and certificate request creation.
+ [Steve Henson]
+
+ *) 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.
+ [Geoff Thorpe]
+
+ *) 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
+ md_data void pointer.
+ [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.
+ [Geoff Thorpe]
+
+ *) 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()".
+ [Geoff Thorpe]
+
+ *) Add EVP test program.
+ [Ben Laurie]
+
+ *) Add symmetric cipher support to ENGINE. Expect the API to change!
+ [Ben Laurie]
+
+ *) 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. This also reduces
+ the number of header dependencies.
+ 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 */
+
+ [Ben Laurie]
+
+ *) 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_...'.)
+ [Ben Laurie]
+
+ *) 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]
+
+ *) Cleanup of EVP macros.
+ [Ben Laurie]
+
+ *) 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]
+
+ *) Speed up EVP routines.
+ 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
+decrypt
+des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
+ [Ben Laurie]
+
+ *) Added the OS2-EMX target.
+ ["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
+ and with possibilities to have yes/no kind of prompts.
+ [Richard Levitte]
+
+ *) 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]
+
+ *) Add the possibility to control engines through control names but with
+ arbitrary arguments instead of just a string.
+ Change the key loaders to take a UI_METHOD instead of a callback
+ function pointer. NOTE: this breaks binary compatibility with earlier
+ versions of OpenSSL [engine].
+ Adapt the nCipher code for these new conditions and add a card insertion
+ callback.
+ [Richard Levitte]
+
+ *) Enhance the general user interface with mechanisms to better support
+ dialog box interfaces, application-defined prompts, the possibility
+ to use defaults (for example default passwords from somewhere else)
+ and interrupts/cancellations.
+ [Richard Levitte]
+
+ *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
+ attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
+ [Steve Henson]
+
+ *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
+ tidy up some unnecessarily weird code in 'sk_new()').
+ [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
+
+ *) Change the key loading routines for ENGINEs to use the same kind
+ callback (pem_password_cb) as all other routines that need this
+ kind of callback.
+ [Richard Levitte]
+
+ *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
+ 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
+ than this minimum value is recommended.
+ [Lutz Jaenicke]
+
+ *) New random seeder for OpenVMS, using the system process statistics
+ that are easily reachable.
+ [Richard Levitte]
+
+ *) Windows apparently can't transparently handle global
+ variables defined in DLLs. Initialisations such as:
+
+ const ASN1_ITEM *it = &ASN1_INTEGER_it;
+
+ wont compile. This is used by the any applications that need to
+ declare their own ASN1 modules. This was fixed by adding the option
+ EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
+ needed for static libraries under Win32.
+ [Steve Henson]
+
+ *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
+ setting of purpose and trust fields. New X509_STORE trust and
+ purpose functions and tidy up setting in other SSL functions.
+ [Steve Henson]
+
+ *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
+ structure. These are inherited by X509_STORE_CTX when it is
+ initialised. This allows various defaults to be set in the
+ X509_STORE structure (such as flags for CRL checking and custom
+ purpose or trust settings) for functions which only use X509_STORE_CTX
+ internally such as S/MIME.
+
+ Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
+ trust settings if they are not set in X509_STORE. This allows X509_STORE
+ purposes and trust (in S/MIME for example) to override any set by default.
+
+ Add command line options for CRL checking to smime, s_client and s_server
+ applications.
+ [Steve Henson]
+
+ *) Initial CRL based revocation checking. If the CRL checking flag(s)
+ are set then the CRL is looked up in the X509_STORE structure and
+ its validity and signature checked, then if the certificate is found
+ in the CRL the verify fails with a revoked error.
+
+ Various new CRL related callbacks added to X509_STORE_CTX structure.
+
+ Command line options added to 'verify' application to support this.
+
+ This needs some additional work, such as being able to handle multiple
+ CRLs with different times, extension based lookup (rather than just
+ by subject name) and ultimately more complete V2 CRL extension
+ handling.
+ [Steve Henson]
+
+ *) Add a general user interface API (crypto/ui/). This is designed
+ to replace things like des_read_password and friends (backward
+ compatibility functions using this new API are provided).
+ The purpose is to remove prompting functions from the DES code
+ section as well as provide for prompting through dialog boxes in
+ a window system and the like.
+ [Richard Levitte]
+
+ *) Add "ex_data" support to ENGINE so implementations can add state at a
+ per-structure level rather than having to store it globally.
+ [Geoff]
+
+ *) Make it possible for ENGINE structures to be copied when retrieved by
+ ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
+ This causes the "original" ENGINE structure to act like a template,
+ analogous to the RSA vs. RSA_METHOD type of separation. Because of this
+ operational state can be localised to each ENGINE structure, despite the
+ fact they all share the same "methods". New ENGINE structures returned in
+ this case have no functional references and the return value is the single
+ structural reference. This matches the single structural reference returned
+ by ENGINE_by_id() normally, when it is incremented on the pre-existing
+ ENGINE structure.
+ [Geoff]
+
+ *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
+ needs to match any other type at all we need to manually clear the
+ tag cache.
+ [Steve Henson]
+
+ *) Changes to the "openssl engine" utility to include;
+ - verbosity levels ('-v', '-vv', and '-vvv') that provide information
+ about an ENGINE's available control commands.
+ - executing control commands from command line arguments using the
+ '-pre' and '-post' switches. '-post' is only used if '-t' is
+ specified and the ENGINE is successfully initialised. The syntax for
+ the individual commands are colon-separated, for example;
+ openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
+ [Geoff]
+
+ *) New dynamic control command support for ENGINEs. ENGINEs can now
+ declare their own commands (numbers), names (strings), descriptions,
+ and input types for run-time discovery by calling applications. A
+ subset of these commands are implicitly classed as "executable"
+ depending on their input type, and only these can be invoked through
+ the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
+ can be based on user input, config files, etc). The distinction is
+ that "executable" commands cannot return anything other than a boolean
+ result and can only support numeric or string input, whereas some
+ discoverable commands may only be for direct use through
+ ENGINE_ctrl(), eg. supporting the exchange of binary data, function
+ pointers, or other custom uses. The "executable" commands are to
+ support parameterisations of ENGINE behaviour that can be
+ unambiguously defined by ENGINEs and used consistently across any
+ OpenSSL-based application. Commands have been added to all the
+ existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
+ control over shared-library paths without source code alterations.
+ [Geoff]
+
+ *) Changed all ENGINE implementations to dynamically allocate their
+ ENGINEs rather than declaring them statically. Apart from this being
+ necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
+ this also allows the implementations to compile without using the
+ internal engine_int.h header.
+ [Geoff]
+
+ *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
+ 'const' value. Any code that should be able to modify a RAND_METHOD
+ should already have non-const pointers to it (ie. they should only
+ modify their own ones).
+ [Geoff]
+
+ *) Made a variety of little tweaks to the ENGINE code.
+ - "atalla" and "ubsec" string definitions were moved from header files
+ to C code. "nuron" string definitions were placed in variables
+ rather than hard-coded - allowing parameterisation of these values
+ later on via ctrl() commands.
+ - Removed unused "#if 0"'d code.
+ - Fixed engine list iteration code so it uses ENGINE_free() to release
+ structural references.
+ - Constified the RAND_METHOD element of ENGINE structures.
+ - Constified various get/set functions as appropriate and added
+ missing functions (including a catch-all ENGINE_cpy that duplicates
+ all ENGINE values onto a new ENGINE except reference counts/state).
+ - Removed NULL parameter checks in get/set functions. Setting a method
+ or function to NULL is a way of cancelling out a previously set
+ value. Passing a NULL ENGINE parameter is just plain stupid anyway
+ and doesn't justify the extra error symbols and code.
+ - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
+ flags from engine_int.h to engine.h.
+ - Changed prototypes for ENGINE handler functions (init(), finish(),
+ ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
+ [Geoff]
+
+ *) Implement binary inversion algorithm for BN_mod_inverse in addition
+ to the algorithm using long division. The binary algorithm can be
+ used only if the modulus is odd. On 32-bit systems, it is faster
+ only for relatively small moduli (roughly 20-30% for 128-bit moduli,
+ roughly 5-15% for 256-bit moduli), so we use it only for moduli
+ up to 450 bits. In 64-bit environments, the binary algorithm
+ appears to be advantageous for much longer moduli; here we use it
+ for moduli up to 2048 bits.
+ [Bodo Moeller]
+
+ *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
+ could not support the combine flag in choice fields.
+ [Steve Henson]
*) Add a 'copy_extensions' option to the 'ca' utility. This copies
extensions from a certificate request to the certificate.
and couldn't display additional details such as extensions.
[Steve Henson]
- *) 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]
+ *) Function EC_POINTs_mul for multiple scalar multiplication
+ of an arbitrary number of elliptic curve points
+ \sum scalars[i]*points[i],
+ optionally including the generator defined for the EC_GROUP:
+ scalar*generator + \sum scalars[i]*points[i].
- *) Function EC_POINTs_mul for simultaneous scalar multiplication
- of an arbitrary number of elliptic curve points, optionally
- including the generator defined for the EC_GROUP.
EC_POINT_mul is a simple wrapper function for the typical case
that the point list has just one item (besides the optional
generator).
pointers.
[Steve Henson]
- *) 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>]
-
*) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
[Bodo Moeller]
Add options '-batch' and '-verbose' to 'openssl req'.
[Massimiliano Pala <madwolf@hackmasters.net>]
- *) Make it possible to reuse SSLv2 sessions.
- [Richard Levitte]
-
*) Introduce the possibility to access global variables through
functions on platform were that's the best way to handle exporting
global variables in shared libraries. To enable this functionality,
#define bar OPENSSL_GLOBAL_REF(bar)
The #defines are very important, and therefore so is including the
- header file everywere where the defined globals are used.
+ header file everywhere where the defined globals are used.
The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
- of ASN.1 items, but that structure is a bt different.
+ of ASN.1 items, but that structure is a bit different.
The largest change is in util/mkdef.pl which has been enhanced with
better and easier to understand logic to choose which symbols should
lexicographically to avoid constant rewrites).
[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>]
-
*) In BN_div() keep a copy of the sign of 'num' before writing the
result to 'rm' because if rm==num the value will be overwritten
and produce the wrong result if 'num' is negative: this caused
responses. OCSP responses are prepared in real time and may only
be a few seconds old. Simply checking that the current time lies
between thisUpdate and nextUpdate max reject otherwise valid responses
- caused by either OCSP responder or client clock innacuracy. Instead
+ caused by either OCSP responder or client clock inaccuracy. Instead
we allow thisUpdate and nextUpdate to fall within a certain period of
the current time. The age of the response can also optionally be
checked. Two new options -validity_period and -status_age added to
[Steve Henson]
*) If signature or public key algorithm is unrecognized print out its
- OID rather that just UNKOWN.
- [Steve Henson]
-
- *) 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.
+ OID rather that just UNKNOWN.
[Steve Henson]
*) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
to use such a feature) has been added to "s_server".
[Geoff Thorpe, Lutz Jaenicke]
- *) Modify mkdef.pl to recognise and parse prprocessor conditionals
+ *) Modify mkdef.pl to recognise and parse preprocessor conditionals
of the form '#if defined(...) || defined(...) || ...' and
'#if !defined(...) && !defined(...) && ...'. This also avoids
the growing number of special cases it was previously handling.
[Richard Levitte]
- *) Don't use getenv in library functions when run as setuid/setgid.
- New function OPENSSL_issetugid().
- [Ulf Moeller]
-
*) Make all configuration macros available for application by making
sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other packages and by making
auto incremented.
[Steve Henson]
- *) 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]
-
*) New options to 'ca' utility to support V2 CRL entry extensions.
Currently CRL reason, invalidity date and hold instruction are
supported. Add new CRL extensions to V3 code and some new objects.
[Steve Henson]
- *) Add "-rand" option also to s_client and s_server.
- [Lutz Jaenicke]
-
*) New function EVP_CIPHER_CTX_set_padding() this is used to
disable standard block padding (aka PKCS#5 padding) in the EVP
API, which was previously mandatory. This means that the data is
*) Initial (incomplete) OCSP SSL support.
[Steve Henson]
- *) Fix CPU detection on Irix 6.x.
- [Kurt Hockenbury <khockenb@stevens-tech.edu> and
- "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
-
*) New function OCSP_parse_url(). This splits up a URL into its host,
port and path components: primarily to parse OCSP URLs. New -url
option to ocsp utility.
the request is nonce-less.
[Steve Henson]
- *) 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]
-
*) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
skipped when using openssl x509 multiple times on a single input file,
e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
the clients preferred ciphersuites and rather use its own preferences.
Should help to work around M$ SGC (Server Gated Cryptography) bug in
Internet Explorer by ensuring unchanged hash method during stepup.
+ (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
[Lutz Jaenicke]
*) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
signature against.
[Richard Levitte]
- *) 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]
-
*) Update Rijndael code to version 3.0 and change EVP AES ciphers to
handle the new API. Currently only ECB, CBC modes supported. Add new
AES OIDs. Add TLS AES ciphersuites as described in the "AES Ciphersuites
for TLS" draft-ietf-tls-ciphersuite-03.txt.
[Ben Laurie, Steve Henson]
- *) 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]
-
*) New function OCSP_copy_nonce() to copy nonce value (if present) from
request to response.
[Steve Henson]
extract information from a certificate request. OCSP_response_create()
creates a response and optionally adds a basic response structure.
OCSP_basic_add1_status() adds a complete single response to a basic
- reponse and returns the OCSP_SINGLERESP structure just added (to allow
+ response and returns the OCSP_SINGLERESP structure just added (to allow
extensions to be included for example). OCSP_basic_add1_cert() adds a
certificate to a basic response and OCSP_basic_sign() signs a basic
response with various flags. New helper functions ASN1_TIME_check()
*) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
- structure from a certificate. X509_pubkey_digest() digests tha public_key
+ structure from a certificate. X509_pubkey_digest() digests the public_key
contents: this is used in various key identifiers.
[Steve Henson]
- *) 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 sk_sort() tolerate a NULL argument.
[Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
*) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
passed by the function are trusted implicitly. If any of them signed the
- reponse then it is assumed to be valid and is not verified.
- [Steve Henson]
-
- *) Zero the premaster secret after deriving the master secret in
- DH ciphersuites.
+ response then it is assumed to be valid and is not verified.
[Steve Henson]
*) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
Fix leaks in PKCS12 and PKCS7 routines.
[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]
-
*) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
effectively meant GeneralizedTime would never be used. Now it
where it did not print out a minus for negative ASN1_INTEGER.
[Steve Henson]
- *) Fix 'openssl passwd -1'.
- [Bodo Moeller]
-
*) Add summary printout to ocsp utility. The various functions which
convert status values to strings have been renamed to:
OCSP_response_status_str(), OCSP_cert_status_str() and
section to use.
[Massimiliano Pala <madwolf@comune.modena.it>]
- *) 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>]
-
*) New OCSP utility. Allows OCSP requests to be generated or
read. The request can be sent to a responder and the output
parsed, outputed or printed in text form. Not complete yet:
to 'openssl version', and is also included in 'openssl version -a'.
[Bodo Moeller]
- *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
- call failed, free the DSA structure.
- [Bodo Moeller]
-
*) Allowing defining memory allocation callbacks that will be given
file name and line number information in additional arguments
(a const char* and an int). The basic functionality remains, as
a conventional allocation function is enabled.
[Richard Levitte, Bodo Moeller]
- *) Fix to uni2asc() to cope with zero length Unicode strings.
- These are present in some PKCS#12 files.
- [Steve Henson]
-
*) Finish off removing the remaining LHASH function pointer casts.
There should no longer be any prototype-casting required when using
the LHASH abstraction, and any casts that remain are "bugs". See
[Geoff Thorpe]
*) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
- If an EGD or PRNGD is running and enough entropy is returned, automatic
- seeding like with /dev/[u]random will be performed.
- Positions tried are: /etc/entropy, /var/run/egd-pool.
+ If /dev/[u]random devices are not available or do not return enough
+ entropy, EGD style sockets (served by EGD or PRNGD) will automatically
+ be queried.
+ The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
+ /etc/entropy will be queried once each in this sequence, quering stops
+ when enough entropy was collected without querying more sockets.
[Lutz Jaenicke]
*) Change the Unix RAND_poll() variant to be able to poll several
OCSP_SERVICELOC extension. Tidy up print OCSP format.
[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>]
-
*) Make mkdef.pl parse some of the ASN1 macros and add apropriate
entries for variables.
[Steve Henson]
- *) Fix a deadlock in CRYPTO_mem_leaks().
- [Bodo Moeller]
-
*) Add functionality to apps/openssl.c for detecting locking
problems: As the program is single-threaded, all we have
to do is register a locking callback using an array for
type-specific callbacks.
[Geoff Thorpe]
- *) Use better test patterns in bntest.
- [Ulf Möller]
-
*) Added Kerberos Cipher Suites to be used with TLS, as written in
RFC 2712.
[Veers Staats <staatsvr@asc.hpc.mil>,
Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
- *) rand_win.c fix for Borland C.
- [Ulf Möller]
-
- *) BN_rshift bugfix for n == 0.
- [Bodo Moeller]
-
*) Reformat the FAQ so the different questions and answers can be divided
in sections depending on the subject.
[Richard Levitte]
be handled deterministically).
[Lenka Fibikova <fibikova@exp-math.uni-essen.de>, 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]
-
*) Make BN_mod_inverse faster by explicitly handling small quotients
in the Euclid loop. (Speed gain about 20% for small moduli [256 or
512 bits], about 30% for larger ones [1024 or 2048 bits].)
[Bodo Moeller]
- *) 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]
-
*) New function BN_kronecker.
[Bodo Moeller]
BN_is_one(), and BN_is_word().
[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]
-
*) New function BN_swap.
[Bodo Moeller]
*) Remove all references to RSAref, since there's no more need for it.
[Richard Levitte]
- *) 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 DSO load along a path given through an environment variable
(SHLIB_PATH) with shl_load().
[Richard Levitte]
*) Constify the BIGNUM routines a little more.
[Richard Levitte]
- *) 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]
-
*) Add the following functions:
ENGINE_load_cswift()
identity, and test if they are actually available.
[Richard Levitte]
- *) Add support for shared libraries under Irix.
- [Albert Chin-A-Young <china@thewrittenword.com>]
-
*) Improve RPM specification file by forcing symbolic linking and making
sure the installed documentation is also owned by root.root.
[Damien Miller <djm@mindrot.org>]
- *) Add configuration option to build on Linux on both big-endian and
- little-endian MIPS.
- [Ralf Baechle <ralf@uni-koblenz.de>]
-
*) Give the OpenSSL applications more possibilities to make use of
keys (public as well as private) handled by engines.
[Richard Levitte]
*) Support threads on FreeBSD-elf in Configure.
[Richard Levitte]
- *) Add the possibility to create shared libraries on HP-UX
- [Richard Levitte]
-
*) Fix for SHA1 assembly problem with MASM: it produces
warnings about corrupt line number information when assembling
with debugging information. This is caused by the overlapping
LDAP server.
[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 for non blocking accept BIOs. Added new I/O special reason
BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
with non blocking I/O was not possible because no retry code was
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
+ Changes between 0.9.6c and 0.9.6d [XX xxx 2002]
+
+ *) 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]
+
+ *) Add the configuration target linux-s390x.
+ [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
+
+ *) [In 0.9.6d-engine release:]
+ Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
+ ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
+ variable as an indication that a ClientHello message has been
+ received. As the flag value will be lost between multiple
+ invocations of ssl3_accept when using non-blocking I/O, the
+ function may not be aware that a handshake has actually taken
+ place, thus preventing a new session from being added to the
+ session cache.
+
+ To avoid this problem, we now set s->new_session to 2 instead of
+ using a local variable.
+ [Lutz Jaenicke, Bodo Moeller]
+
+ *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
+ if the SSL_R_LENGTH_MISMATCH error is detected.
+ [Geoff Thorpe, Bodo Moeller]
+
+ *) New 'shared_ldflag' column in Configure platform table.
+ [Richard Levitte]
+
+ *) Fix EVP_CIPHER_mode macro.
+ ["Dan S. Camper" <dan@bti.net>]
+
+ *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
+ type, we must throw them away by setting rr->length to 0.
+ [D P Chang <dpc@qualys.com>]
+
+ Changes between 0.9.6b and 0.9.6c [21 dec 2001]
+
+ *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
+ <Dominikus.Scherkl@biodata.com>. (The previous implementation
+ worked incorrectly for those cases where range = 10..._2 and
+ 3*range is two bits longer than range.)
+ [Bodo Moeller]
+
+ *) Only add signing time to PKCS7 structures if it is not already
+ present.
+ [Steve Henson]
+
+ *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
+ OBJ_ld_ce should be OBJ_id_ce.
+ Also some ip-pda OIDs in crypto/objects/objects.txt were
+ incorrect (cf. RFC 3039).
+ [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
+
+ *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
+ returns early because it has nothing to do.
+ [Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) [In 0.9.6c-engine release:]
+ Fix mutex callback return values in crypto/engine/hw_ncipher.c.
+ [Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for Cryptographic Appliance's keyserver technology.
+ (Use engine 'keyclient')
+ [Cryptographic Appliances and Geoff Thorpe]
+
+ *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
+ is called via tools/c89.sh because arguments have to be
+ rearranged (all '-L' options must appear before the first object
+ modules).
+ [Richard Shapiro <rshapiro@abinitio.com>]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for Broadcom crypto accelerator cards, backported
+ from 0.9.7.
+ [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for SureWare crypto accelerator cards from
+ Baltimore Technologies. (Use engine 'sureware')
+ [Baltimore Technologies and Mark Cox]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for crypto accelerator cards from Accelerated
+ Encryption Processing, www.aep.ie. (Use engine 'aep')
+ [AEP Inc. and Mark Cox]
+
+ *) Add a configuration entry for gcc on UnixWare.
+ [Gary Benson <gbenson@redhat.com>]
+
+ *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
+ messages are stored in a single piece (fixed-length part and
+ variable-length part combined) and fix various bugs found on the way.
+ [Bodo Moeller]
+
+ *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
+ instead. BIO_gethostbyname() does not know what timeouts are
+ appropriate, so entries would stay in cache even when they have
+ become invalid.
+ [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
+
+ *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
+ faced with a pathologically small ClientHello fragment that does
+ not contain client_version: Instead of aborting with an error,
+ simply choose the highest available protocol version (i.e.,
+ TLS 1.0 unless it is disabled). In practice, ClientHello
+ messages are never sent like this, but this change gives us
+ strictly correct behaviour at least for TLS.
+ [Bodo Moeller]
+
+ *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
+ never resets s->method to s->ctx->method when called from within
+ one of the SSL handshake functions.
+ [Bodo Moeller; problem pointed out by Niko Baric]
+
+ *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
+ (sent using the client's version number) if client_version is
+ smaller than the protocol version in use. Also change
+ ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
+ the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
+ the client will at least see that alert.
+ [Bodo Moeller]
+
+ *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
+ correctly.
+ [Bodo Moeller]
+
+ *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
+ client receives HelloRequest while in a handshake.
+ [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
+ should end in 'break', not 'goto end' which circuments various
+ cleanups done in state SSL_ST_OK. But session related stuff
+ must be disabled for SSL_ST_OK in the case that we just sent a
+ HelloRequest.
+
+ Also avoid some overhead by not calling ssl_init_wbio_buffer()
+ before just sending a HelloRequest.
+ [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
+
+ *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
+ reveal whether illegal block cipher padding was found or a MAC
+ verification error occured. (Neither SSLerr() codes nor alerts
+ are directly visible to potential attackers, but the information
+ may leak via logfiles.)
+
+ Similar changes are not required for the SSL 2.0 implementation
+ because the number of padding bytes is sent in clear for SSL 2.0,
+ and the extra bytes are just ignored. However ssl/s2_pkt.c
+ failed to verify that the purported number of padding bytes is in
+ the legal range.
+ [Bodo Moeller]
+
+ *) Add OpenUNIX-8 support including shared libraries
+ (Boyd Lynn Gerber <gerberb@zenez.com>).
+ [Lutz Jaenicke]
+
+ *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
+ 'wristwatch attack' using huge encoding parameters (cf.
+ James H. Manger's CRYPTO 2001 paper). Note that the
+ RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
+ encoding parameters and hence was not vulnerable.
+ [Bodo Moeller]
+
+ *) BN_sqr() bug fix.
+ [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
+
+ *) Rabin-Miller test analyses assume uniformly distributed witnesses,
+ so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
+ followed by modular reduction.
+ [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
+
+ *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
+ equivalent based on BN_pseudo_rand() instead of BN_rand().
+ [Bodo Moeller]
+
+ *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
+ This function was broken, as the check for a new client hello message
+ to handle SGC did not allow these large messages.
+ (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
+ [Lutz Jaenicke]
+
+ *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
+ [Lutz Jaenicke]
+
+ *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
+ for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
+ [Lutz Jaenicke]
+
+ *) Rework the configuration and shared library support for Tru64 Unix.
+ The configuration part makes use of modern compiler features and
+ still retains old compiler behavior for those that run older versions
+ of the OS. The shared library support part includes a variant that
+ uses the RPATH feature, and is available through the special
+ configuration target "alpha-cc-rpath", which will never be selected
+ automatically.
+ [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
+
+ *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
+ with the same message size as in ssl3_get_certificate_request().
+ Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
+ messages might inadvertently be reject as too long.
+ [Petr Lampa <lampa@fee.vutbr.cz>]
+
+ *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
+ [Andy Polyakov]
+
+ *) Modified SSL library such that the verify_callback that has been set
+ specificly for an SSL object with SSL_set_verify() is actually being
+ used. Before the change, a verify_callback set with this function was
+ ignored and the verify_callback() set in the SSL_CTX at the time of
+ the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
+ to allow the necessary settings.
+ [Lutz Jaenicke]
+
+ *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
+ explicitly to NULL, as at least on Solaris 8 this seems not always to be
+ done automatically (in contradiction to the requirements of the C
+ standard). This made problems when used from OpenSSH.
+ [Lutz Jaenicke]
+
+ *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
+ dh->length and always used
+
+ BN_rand_range(priv_key, dh->p).
+
+ BN_rand_range() is not necessary for Diffie-Hellman, and this
+ specific range makes Diffie-Hellman unnecessarily inefficient if
+ dh->length (recommended exponent length) is much smaller than the
+ length of dh->p. We could use BN_rand_range() if the order of
+ the subgroup was stored in the DH structure, but we only have
+ dh->length.
+
+ So switch back to
+
+ BN_rand(priv_key, l, ...)
+
+ where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
+ otherwise.
+ [Bodo Moeller]
+
+ *) In
+
+ RSA_eay_public_encrypt
+ RSA_eay_private_decrypt
+ RSA_eay_private_encrypt (signing)
+ RSA_eay_public_decrypt (signature verification)
+
+ (default implementations for RSA_public_encrypt,
+ RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
+ always reject numbers >= n.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
+ to synchronize access to 'locking_thread'. This is necessary on
+ systems where access to 'locking_thread' (an 'unsigned long'
+ variable) is not atomic.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
+ *before* setting the 'crypto_lock_rand' flag. The previous code had
+ a race condition if 0 is a valid thread ID.
+ [Travis Vitek <vitek@roguewave.com>]
+
+ *) Add support for shared libraries under Irix.
+ [Albert Chin-A-Young <china@thewrittenword.com>]
+
+ *) Add configuration option to build on Linux on both big-endian and
+ little-endian MIPS.
+ [Ralf Baechle <ralf@uni-koblenz.de>]
+
+ *) Add the possibility to create shared libraries on HP-UX.
+ [Richard Levitte]
+
+ Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
+
+ *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
+ to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
+ Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
+ PRNG state recovery was possible based on the output of
+ one PRNG request appropriately sized to gain knowledge on
+ 'md' followed by enough consecutive 1-byte PRNG requests
+ to traverse all of 'state'.
+
+ 1. When updating 'md_local' (the current thread's copy of 'md')
+ during PRNG output generation, hash all of the previous
+ 'md_local' value, not just the half used for PRNG output.
+
+ 2. Make the number of bytes from 'state' included into the hash
+ independent from the number of PRNG bytes requested.
+
+ The first measure alone would be sufficient to avoid
+ Markku-Juhani's attack. (Actually it had never occurred
+ to me that the half of 'md_local' used for chaining was the
+ half from which PRNG output bytes were taken -- I had always
+ assumed that the secret half would be used.) The second
+ measure makes sure that additional data from 'state' is never
+ mixed into 'md_local' in small portions; this heuristically
+ further strengthens the PRNG.
+ [Bodo Moeller]
+
+ *) Fix crypto/bn/asm/mips3.s.
+ [Andy Polyakov]
+
+ *) When only the key is given to "enc", the IV is undefined. Print out
+ an error message in this case.
+ [Lutz Jaenicke]
+
+ *) Handle special case when X509_NAME is empty in X509 printing routines.
+ [Steve Henson]
+
+ *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
+ positive and less than q.
+ [Bodo Moeller]
+
+ *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
+ used: it isn't thread safe and the add_lock_callback should handle
+ that itself.
+ [Paul Rose <Paul.Rose@bridge.com>]
+
+ *) Verify that incoming data obeys the block size in
+ ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
+ [Bodo Moeller]
+
+ *) Fix OAEP check.
+ [Ulf Möller, Bodo Möller]
+
+ *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
+ RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
+ when fixing the server behaviour for backwards-compatible 'client
+ hello' messages. (Note that the attack is impractical against
+ SSL 3.0 and TLS 1.0 anyway because length and version checking
+ means that the probability of guessing a valid ciphertext is
+ around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
+ paper.)
+
+ Before 0.9.5, the countermeasure (hide the error by generating a
+ random 'decryption result') did not work properly because
+ ERR_clear_error() was missing, meaning that SSL_get_error() would
+ detect the supposedly ignored error.
+
+ Both problems are now fixed.
+ [Bodo Moeller]
+
+ *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
+ (previously it was 1024).
+ [Bodo Moeller]
+
+ *) Fix for compatibility mode trust settings: ignore trust settings
+ unless some valid trust or reject settings are present.
+ [Steve Henson]
+
+ *) Fix for blowfish EVP: its a variable length cipher.
+ [Steve Henson]
+
+ *) Fix various bugs related to DSA S/MIME verification. Handle missing
+ parameters in DSA public key structures and return an error in the
+ DSA routines if parameters are absent.
+ [Steve Henson]
+
+ *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
+ in the current directory if neither $RANDFILE nor $HOME was set.
+ RAND_file_name() in 0.9.6a returned NULL in this case. This has
+ caused some confusion to Windows users who haven't defined $HOME.
+ Thus RAND_file_name() is changed again: e_os.h can define a
+ DEFAULT_HOME, which will be used if $HOME is not set.
+ For Windows, we use "C:"; on other platforms, we still require
+ environment variables.
+
+ *) Move 'if (!initialized) RAND_poll()' into regions protected by
+ CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
+ having multiple threads call RAND_poll() concurrently.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
+ combination of a flag and a thread ID variable.
+ Otherwise while one thread is in ssleay_rand_bytes (which sets the
+ flag), *other* threads can enter ssleay_add_bytes without obeying
+ the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
+ that they do not hold after the first thread unsets add_do_not_lock).
+ [Bodo Moeller]
+
+ *) Change bctest again: '-x' expressions are not available in all
+ versions of 'test'.
+ [Bodo Moeller]
+
+ Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
+
+ *) Fix a couple of memory leaks in PKCS7_dataDecode()
+ [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
+
+ *) Change Configure and Makefiles to provide EXE_EXT, which will contain
+ the default extension for executables, if any. Also, make the perl
+ scripts that use symlink() to test if it really exists and use "cp"
+ if it doesn't. All this made OpenSSL compilable and installable in
+ CygWin.
+ [Richard Levitte]
+
+ *) Fix for asn1_GetSequence() for indefinite length constructed data.
+ If SEQUENCE is length is indefinite just set c->slen to the total
+ amount of data available.
+ [Steve Henson, reported by shige@FreeBSD.org]
+ [This change does not apply to 0.9.7.]
+
+ *) Change bctest to avoid here-documents inside command substitution
+ (workaround for FreeBSD /bin/sh bug).
+ For compatibility with Ultrix, avoid shell functions (introduced
+ in the bctest version that searches along $PATH).
+ [Bodo Moeller]
+
+ *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
+ with des_encrypt() defined on some operating systems, like Solaris
+ and UnixWare.
+ [Richard Levitte]
+
+ *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
+ On the Importance of Eliminating Errors in Cryptographic
+ Computations, J. Cryptology 14 (2001) 2, 101-119,
+ http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
+ [Ulf Moeller]
+
+ *) MIPS assembler BIGNUM division bug fix.
+ [Andy Polyakov]
+
+ *) Disabled incorrect Alpha assembler code.
+ [Richard Levitte]
+
+ *) Fix PKCS#7 decode routines so they correctly update the length
+ after reading an EOC for the EXPLICIT tag.
+ [Steve Henson]
+ [This change does not apply to 0.9.7.]
+
+ *) Fix bug in PKCS#12 key generation routines. This was triggered
+ if a 3DES key was generated with a 0 initial byte. Include
+ PKCS12_BROKEN_KEYGEN compilation option to retain the old
+ (but broken) behaviour.
+ [Steve Henson]
+
+ *) Enhance bctest to search for a working bc along $PATH and print
+ it when found.
+ [Tim Rice <tim@multitalents.net> via Richard Levitte]
+
+ *) Fix memory leaks in err.c: free err_data string if necessary;
+ don't write to the wrong index in ERR_set_error_data.
+ [Bodo Moeller]
+
+ *) Implement ssl23_peek (analogous to ssl23_read), which previously
+ did not exist.
+ [Bodo Moeller]
+
+ *) Replace rdtsc with _emit statements for VC++ version 5.
+ [Jeremy Cooper <jeremy@baymoo.org>]
+
+ *) Make it possible to reuse SSLv2 sessions.
+ [Richard Levitte]
+
+ *) In copy_email() check for >= 0 as a return value for
+ X509_NAME_get_index_by_NID() since 0 is a valid index.
+ [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
+
+ *) Avoid coredump with unsupported or invalid public keys by checking if
+ X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
+ PKCS7_verify() fails with non detached data.
+ [Steve Henson]
+
+ *) Don't use getenv in library functions when run as setuid/setgid.
+ New function OPENSSL_issetugid().
+ [Ulf Moeller]
+
+ *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
+ due to incorrect handling of multi-threading:
+
+ 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
+
+ 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
+
+ 3. Count how many times MemCheck_off() has been called so that
+ nested use can be treated correctly. This also avoids
+ inband-signalling in the previous code (which relied on the
+ assumption that thread ID 0 is impossible).
+ [Bodo Moeller]
+
+ *) Add "-rand" option also to s_client and s_server.
+ [Lutz Jaenicke]
+
+ *) Fix CPU detection on Irix 6.x.
+ [Kurt Hockenbury <khockenb@stevens-tech.edu> and
+ "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
+
+ *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
+ was empty.
+ [Steve Henson]
+ [This change does not apply to 0.9.7.]
+
+ *) Use the cached encoding of an X509_NAME structure rather than
+ copying it. This is apparently the reason for the libsafe "errors"
+ but the code is actually correct.
+ [Steve Henson]
+
+ *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
+ Bleichenbacher's DSA attack.
+ Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
+ to be set and top=0 forces the highest bit to be set; top=-1 is new
+ and leaves the highest bit random.
+ [Ulf Moeller, Bodo Moeller]
+
+ *) In the NCONF_...-based implementations for CONF_... queries
+ (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
+ a temporary CONF structure with the data component set to NULL
+ (which gives segmentation faults in lh_retrieve).
+ Instead, use NULL for the CONF pointer in CONF_get_string and
+ CONF_get_number (which may use environment variables) and directly
+ return NULL from CONF_get_section.
+ [Bodo Moeller]
+
+ *) Fix potential buffer overrun for EBCDIC.
+ [Ulf Moeller]
+
+ *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
+ keyUsage if basicConstraints absent for a CA.
+ [Steve Henson]
+
+ *) Make SMIME_write_PKCS7() write mail header values with a format that
+ is more generally accepted (no spaces before the semicolon), since
+ some programs can't parse those values properly otherwise. Also make
+ sure BIO's that break lines after each write do not create invalid
+ headers.
+ [Richard Levitte]
+
+ *) Make the CRL encoding routines work with empty SEQUENCE OF. The
+ macros previously used would not encode an empty SEQUENCE OF
+ and break the signature.
+ [Steve Henson]
+ [This change does not apply to 0.9.7.]
+
+ *) Zero the premaster secret after deriving the master secret in
+ DH ciphersuites.
+ [Steve Henson]
+
+ *) Add some EVP_add_digest_alias registrations (as found in
+ OpenSSL_add_all_digests()) to SSL_library_init()
+ aka OpenSSL_add_ssl_algorithms(). This provides improved
+ compatibility with peers using X.509 certificates
+ with unconventional AlgorithmIdentifier OIDs.
+ [Bodo Moeller]
+
+ *) Fix for Irix with NO_ASM.
+ ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
+
+ *) ./config script fixes.
+ [Ulf Moeller, Richard Levitte]
+
+ *) Fix 'openssl passwd -1'.
+ [Bodo Moeller]
+
+ *) Change PKCS12_key_gen_asc() so it can cope with non null
+ terminated strings whose length is passed in the passlen
+ parameter, for example from PEM callbacks. This was done
+ by adding an extra length parameter to asc2uni().
+ [Steve Henson, reported by <oddissey@samsung.co.kr>]
+
+ *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
+ call failed, free the DSA structure.
+ [Bodo Moeller]
+
+ *) Fix to uni2asc() to cope with zero length Unicode strings.
+ These are present in some PKCS#12 files.
+ [Steve Henson]
+
+ *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
+ Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
+ when writing a 32767 byte record.
+ [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
+
+ *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
+ obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
+
+ (RSA objects have a reference count access to which is protected
+ by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
+ so they are meant to be shared between threads.)
+ [Bodo Moeller, Geoff Thorpe; original patch submitted by
+ "Reddie, Steven" <Steven.Reddie@ca.com>]
+
+ *) Fix a deadlock in CRYPTO_mem_leaks().
+ [Bodo Moeller]
+
+ *) Use better test patterns in bntest.
+ [Ulf Möller]
+
+ *) rand_win.c fix for Borland C.
+ [Ulf Möller]
+
+ *) BN_rshift bugfix for n == 0.
+ [Bodo Moeller]
+
+ *) Add a 'bctest' script that checks for some known 'bc' bugs
+ so that 'make test' does not abort just because 'bc' is broken.
+ [Bodo Moeller]
+
+ *) Store verify_result within SSL_SESSION also for client side to
+ avoid potential security hole. (Re-used sessions on the client side
+ always resulted in verify_result==X509_V_OK, not using the original
+ result of the server certificate verification.)
+ [Lutz Jaenicke]
+
+ *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
+ SSL3_RT_APPLICATION_DATA, return 0.
+ Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
+ [Bodo Moeller]
+
+ *) Fix SSL_peek:
+ Both ssl2_peek and ssl3_peek, which were totally broken in earlier
+ releases, have been re-implemented by renaming the previous
+ implementations of ssl2_read and ssl3_read to ssl2_read_internal
+ and ssl3_read_internal, respectively, and adding 'peek' parameters
+ to them. The new ssl[23]_{read,peek} functions are calls to
+ ssl[23]_read_internal with the 'peek' flag set appropriately.
+ A 'peek' parameter has also been added to ssl3_read_bytes, which
+ does the actual work for ssl3_read_internal.
+ [Bodo Moeller]
+
+ *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
+ the method-specific "init()" handler. Also clean up ex_data after
+ calling the method-specific "finish()" handler. Previously, this was
+ happening the other way round.
+ [Geoff Thorpe]
+
+ *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
+ The previous value, 12, was not always sufficient for BN_mod_exp().
+ [Bodo Moeller]
+
+ *) Make sure that shared libraries get the internal name engine with
+ the full version number and not just 0. This should mark the
+ shared libraries as not backward compatible. Of course, this should
+ be changed again when we can guarantee backward binary compatibility.
+ [Richard Levitte]
+
+ *) Fix typo in get_cert_by_subject() in by_dir.c
+ [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
+
+ *) Rework the system to generate shared libraries:
+
+ - Make note of the expected extension for the shared libraries and
+ if there is a need for symbolic links from for example libcrypto.so.0
+ to libcrypto.so.0.9.7. There is extended info in Configure for
+ that.
+
+ - Make as few rebuilds of the shared libraries as possible.
+
+ - Still avoid linking the OpenSSL programs with the shared libraries.
+
+ - When installing, install the shared libraries separately from the
+ static ones.
+ [Richard Levitte]
+
*) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
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 True64.
+ This has been tested on Linux and Tru64.
[Richard Levitte]
*) Randomness polling function for Win9x, as described in:
copied!)
[Bodo Moeller]
- *) Bugfix: SSL_set_mode ignored its parameter, only SSL_CTX_set_mode
+ *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
worked.
*) Fix problems with no-hmac etc.
projects / openssl.git / blobdiff