OpenSSL CHANGES
_______________
- Changes between 0.9.6 and 0.9.7 [xx XXX 2001]
+ Changes between 0.9.7c and 0.9.8 [xx XXX xxxx]
- OpenSSL 0.9.6a/0.9.6b (bugfix releases, 5 Apr 2001 and 9 July 2001)
- and OpenSSL 0.9.7 were developed in parallel, based on OpenSSL 0.9.6.
+ *) Update support for ECC-based TLS ciphersuites according to
+ draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
+ SHA-1 now is only used for "small" curves (where the
+ representation of a field element takes up to 24 bytes); for
+ larger curves, the field element resulting from ECDH is directly
+ used as premaster secret.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
- Change log entries are tagged as follows:
- -) applies to 0.9.6a/0.9.6b/0.9.6c only
- *) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
- +) applies to 0.9.7 only
+ *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
+ curve secp160r1 to the tests.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
- +) default_algorithms option in ENGINE config module. This allows things
- like:
- default_algorithms = ALL
- default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
- [Steve Henson]
+ *) Add the possibility to load symbols globally with DSO.
+ [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
- +) Prelminary ENGINE config module.
- [Steve Henson]
+ *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
+ control of the error stack.
+ [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.
+ *) Add support for STORE in ENGINE.
+ [Richard Levitte]
- To avoid this problem, we now set s->new_session to 2 instead of
- using a local variable.
- [Lutz Jaenicke, Bodo Moeller]
+ *) Add the STORE type. The intention is to provide a common interface
+ to certificate and key stores, be they simple file-based stores, or
+ HSM-type store, or LDAP stores, or...
+ NOTE: The code is currently UNTESTED and isn't really used anywhere.
+ [Richard Levitte]
- *) 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]
+ *) Add a generic structure called OPENSSL_ITEM. This can be used to
+ pass a list of arguments to any function as well as provide a way
+ for a function to pass data back to the caller.
+ [Richard Levitte]
- +) New experimental application configuration code.
- [Steve Henson]
+ *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
+ works like BUF_strdup() but can be used to duplicate a portion of
+ a string. The copy gets NUL-terminated. BUF_memdup() duplicates
+ a memory area.
+ [Richard Levitte]
- *) New 'shared_ldflag' column in Configure platform table.
+ *) Add the function sk_find_ex() which works like sk_find(), but will
+ return an index to an element even if an exact match couldn't be
+ found. The index is guaranteed to point at the element where the
+ searched-for key would be inserted to preserve sorting order.
[Richard Levitte]
- *) Fix EVP_CIPHER_mode macro.
- ["Dan S. Camper" <dan@bti.net>]
+ *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
+ takes an extra flags argument for optional functionality. Currently,
+ the following flags are defined:
- +) 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]
+ OBJ_BSEARCH_VALUE_ON_NOMATCH
+ This one gets OBJ_bsearch_ex() to return a pointer to the first
+ element where the comparing function returns a negative or zero
+ number.
- *) 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>]
+ OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
+ This one gets OBJ_bsearch_ex() to return a pointer to the first
+ element where the comparing function returns zero. This is useful
+ if there are more than one element where the comparing function
+ returns zero.
+ [Richard Levitte]
- -) OpenSSL 0.9.6c released [21 dec 2001]
+ *) Make it possible to create self-signed certificates with 'openssl ca'
+ in such a way that the self-signed certificate becomes part of the
+ CA database and uses the same mechanisms for serial number generation
+ as all other certificate signing. The new flag '-selfsign' enables
+ this functionality. Adapt CA.sh and CA.pl.in.
+ [Richard Levitte]
- +) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
- [Ben Laurie and Theo de Raadt]
+ *) Add functionality to check the public key of a certificate request
+ against a given private. This is useful to check that a certificate
+ request can be signed by that key (self-signing).
+ [Richard Levitte]
- *) 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]
+ *) 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]
- *) Only add signing time to PKCS7 structures if it is not already
- present.
+ *) Generate muti valued AVAs using '+' notation in config files for
+ req and dirName.
[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]
+ *) Support for nameConstraints certificate extension.
+ [Steve Henson]
- +) Add option to output public keys in req command.
- [Massimiliano Pala madwolf@openca.org]
+ *) Support for policyConstraints certificate extension.
+ [Steve Henson]
- *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
- returns early because it has nothing to do.
- [Andy Schneider <andy.schneider@bjss.co.uk>]
+ *) Support for policyMappings certificate extension.
+ [Steve Henson]
- *) [In 0.9.6c-engine and 0.9.7 release:]
- Fix mutex callback return values in crypto/engine/hw_ncipher.c.
- [Andy Schneider <andy.schneider@bjss.co.uk>]
+ *) 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]
- -) [In 0.9.6c-engine release:]
- Add support for Cryptographic Appliance's keyserver technology.
- (Use engine 'keyclient')
- [Cryptographic Appliances and Geoff Thorpe]
+ *) Make sure the default DSA_METHOD implementation only uses its
+ dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
+ and change its own handlers to be NULL so as to remove unnecessary
+ indirection. This lets alternative implementations fallback to the
+ default implementation more easily.
+ [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>]
+ *) Support for directoryName in GeneralName related extensions
+ in config files.
+ [Steve Henson]
- +) Use wNAFs in EC_POINTs_mul() for improved efficiency
- (up to about 10% better than before for P-192 and P-224).
- [Bodo Moeller]
+ *) Make it possible to link applications using Makefile.shared.
+ Make that possible even when linking against static libraries!
+ [Richard Levitte]
- -) [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]
+ *) Support for single pass processing for S/MIME signing. This now
+ means that S/MIME signing can be done from a pipe, in addition
+ cleartext signing (multipart/signed type) is effectively streaming
+ and the signed data does not need to be all held in memory.
- -) [In 0.9.6c-engine release:]
- Add support for SureWare crypto accelerator cards from
- Baltimore Technologies. (Use engine 'sureware')
- [Baltimore Technologies and Mark Cox]
+ This is done with a new flag PKCS7_STREAM. When this flag is set
+ PKCS7_sign() only initializes the PKCS7 structure and the actual signing
+ is done after the data is output (and digests calculated) in
+ SMIME_write_PKCS7().
+ [Steve Henson]
- -) [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 full support for -rpath/-R, both in shared libraries and
+ applications, at least on the platforms where it's known how
+ to do it.
+ [Richard Levitte]
- *) Add a configuration entry for gcc on UnixWare.
- [Gary Benson <gbenson@redhat.com>]
+ *) In crypto/ec/ec_mult.c, implement fast point multiplication with
+ precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
+ will now compute a table of multiples of the generator that
+ makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
+ faster (notably in the case of a single point multiplication,
+ scalar * generator).
+ [Nils Larsch, Bodo Moeller]
+
+ *) IPv6 support for certificate extensions. The various extensions
+ which use the IP:a.b.c.d can now take IPv6 addresses using the
+ formats of RFC1884 2.2 . IPv6 addresses are now also displayed
+ correctly.
+ [Steve Henson]
- +) New functions/macros
+ *) Added an ENGINE that implements RSA by performing private key
+ exponentiations with the GMP library. The conversions to and from
+ GMP's mpz_t format aren't optimised nor are any montgomery forms
+ cached, and on x86 it appears OpenSSL's own performance has caught up.
+ However there are likely to be other architectures where GMP could
+ provide a boost. This ENGINE is not built in by default, but it can be
+ specified at Configure time and should be accompanied by the necessary
+ linker additions, eg;
+ ./config -DOPENSSL_USE_GMP -lgmp
+ [Geoff Thorpe]
- 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)
+ *) "openssl engine" will not display ENGINE/DSO load failure errors when
+ testing availability of engines with "-t" - the old behaviour is
+ produced by increasing the feature's verbosity with "-tt".
+ [Geoff Thorpe]
- to request calling a callback function
+ *) ECDSA routines: under certain error conditions uninitialized BN objects
+ could be freed. Solution: make sure initialization is performed early
+ enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
+ via PR#459)
+ [Lutz Jaenicke]
- void cb(int write_p, int version, int content_type,
- const void *buf, size_t len, SSL *ssl, void *arg)
+ *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
+ and DH_METHOD (eg. by ENGINE implementations) to override the normal
+ software implementations. For DSA and DH, parameter generation can
+ also be overriden by providing the appropriate method callbacks.
+ [Geoff Thorpe]
- 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().
+ *) Change the "progress" mechanism used in key-generation and
+ primality testing to functions that take a new BN_GENCB pointer in
+ place of callback/argument pairs. The new API functions have "_ex"
+ postfixes and the older functions are reimplemented as wrappers for
+ the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
+ declarations of the old functions to help (graceful) attempts to
+ migrate to the new functions. Also, the new key-generation API
+ functions operate on a caller-supplied key-structure and return
+ success/failure rather than returning a key or NULL - this is to
+ help make "keygen" another member function of RSA_METHOD etc.
+
+ Example for using the new callback interface:
+
+ int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
+ void *my_arg = ...;
+ BN_GENCB my_cb;
+
+ BN_GENCB_set(&my_cb, my_callback, my_arg);
+
+ return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
+ /* For the meaning of a, b in calls to my_callback(), see the
+ * documentation of the function that calls the callback.
+ * cb will point to my_cb; my_arg can be retrieved as cb->arg.
+ * my_callback should return 1 if it wants BN_is_prime_ex()
+ * to continue, or 0 to stop.
+ */
- 'openssl s_client' and 'openssl s_server' have new '-msg' options
- to enable a callback that displays all protocol messages.
- [Bodo Moeller]
+ [Geoff Thorpe]
- *) 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]
+ *) Change the ZLIB compression method to be stateful, and make it
+ available to TLS with the number defined in
+ draft-ietf-tls-compression-04.txt.
+ [Richard Levitte]
- +) 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.
+ *) Add the ASN.1 structures and functions for CertificatePair, which
+ is defined as follows (according to X.509_4thEditionDraftV6.pdf):
- 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]
+ CertificatePair ::= SEQUENCE {
+ forward [0] Certificate OPTIONAL,
+ reverse [1] Certificate OPTIONAL,
+ -- at least one of the pair shall be present -- }
- +) Add support for Subject Information Access extension.
- [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
+ Also implement the PEM functions to read and write certificate
+ pairs, and defined the PEM tag as "CERTIFICATE PAIR".
- +) 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]
+ This needed to be defined, mostly for the sake of the LDAP
+ attribute crossCertificatePair, but may prove useful elsewhere as
+ well.
+ [Richard Levitte]
- *) 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>
+ *) Make it possible to inhibit symlinking of shared libraries in
+ Makefile.shared, for Cygwin's sake.
+ [Richard Levitte]
- +) New command line and configuration option 'utf8' for the req command.
- This allows field values to be specified as UTF8 strings.
- [Steve Henson]
+ *) Extend the BIGNUM API by creating new macros that behave like
+ functions
- +) Add -multi and -mr options to "openssl speed" - giving multiple parallel
- runs for the former and machine-readable output for the latter.
- [Ben Laurie]
+ void BN_set_sign(BIGNUM *a, int neg);
+ int BN_get_sign(const BIGNUM *a);
- +) 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]
+ and avoid the need to access 'a->neg' directly in applications.
+ [Nils Larsch <nla@trustcenter.de>]
- *) 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]
+ *) Implement fast modular reduction for pseudo-Mersenne primes
+ used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
+ EC_GROUP_new_curve_GFp() will now automatically use this
+ if applicable.
+ [Nils Larsch <nla@trustcenter.de>]
- +) Change all functions with names starting with des_ to be starting
- with DES_ instead. Add wrappers that are compatible with libdes,
- but are named _old_des_*. Finally, add macros that map the des_*
- symbols to the corresponding _old_des_*.
+ *) Add new lock type (CRYPTO_LOCK_BN).
+ [Bodo Moeller]
- All this is done because there are increasing clashes with libdes
- and other DES libraries that are currently used by other projects.
- The old libdes interface (including crypt()) is provided if
- <openssl/des_old.h> is included. For now, this automatically
- happens in <openssl/des.h> unless OPENSSL_NO_OLD_DES_SUPPORT is
- defined. Note that crypt() is no longer declared in <openssl/des.h>.
+ *) Change the ENGINE framework to automatically load engines
+ dynamically from specific directories unless they could be
+ found to already be built in or loaded. Move all the
+ current engines except for the cryptodev one to a new
+ directory engines/.
+ The engines in engines/ are built as shared libraries if
+ the "shared" options was given to ./Configure or ./config.
+ Otherwise, they are inserted in libcrypto.a.
+ /usr/local/ssl/engines is the default directory for dynamic
+ engines, but that can be overriden at configure time through
+ the usual use of --prefix and/or --openssldir, and at run
+ time with the environment variable OPENSSL_ENGINES.
+ [Geoff Thorpe and Richard Levitte]
- 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 completely removed.
+ *) Add Makefile.shared, a helper makefile to build shared
+ libraries. Addapt Makefile.org.
[Richard Levitte]
- *) 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]
+ *) Add version info to Win32 DLLs.
+ [Peter 'Luna' Runestig" <peter@runestig.com>]
- +) 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]
+ *) Add new 'medium level' PKCS#12 API. Certificates and keys
+ can be added using this API to created arbitrary PKCS#12
+ files while avoiding the low level API.
- *) 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]
+ New options to PKCS12_create(), key or cert can be NULL and
+ will then be omitted from the output file. The encryption
+ algorithm NIDs can be set to -1 for no encryption, the mac
+ iteration count can be set to 0 to omit the mac.
- +) Modify the behaviour of EVP cipher functions in similar way to digests
- to retain compatibility with existing code.
+ Enhance pkcs12 utility by making the -nokeys and -nocerts
+ options work when creating a PKCS#12 file. New option -nomac
+ to omit the mac, NONE can be set for an encryption algorithm.
+ New code is modified to use the enhanced PKCS12_create()
+ instead of the low level API.
[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.
+ *) Extend ASN1 encoder to support indefinite length constructed
+ encoding. This can output sequences tags and octet strings in
+ this form. Modify pk7_asn1.c to support indefinite length
+ encoding. This is experimental and needs additional code to
+ be useful, such as an ASN1 bio and some enhanced streaming
+ PKCS#7 code.
- Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
- EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
+ Extend template encode functionality so that tagging is passed
+ down to the template encoder.
[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.
+ *) Let 'openssl req' fail if an argument to '-newkey' is not
+ recognized instead of using RSA as a default.
[Bodo Moeller]
- *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
- correctly.
- [Bodo Moeller]
+ *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
+ As these are not official, they are not included in "ALL";
+ the "ECCdraft" ciphersuite group alias can be used to select them.
+ [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
- +) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
- [Massimo Santin via Richard Levitte]
+ *) Add ECDH engine support.
+ [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
- +) 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]
+ *) Add ECDH in new directory crypto/ecdh/.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
- +) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
- [Steve Henson]
+ *) Let BN_rand_range() abort with an error after 100 iterations
+ without success (which indicates a broken PRNG).
+ [Bodo Moeller]
- +) 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]
+ *) Change BN_mod_sqrt() so that it verifies that the input value
+ is really the square of the return value. (Previously,
+ BN_mod_sqrt would show GIGO behaviour.)
+ [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>]
+ *) Add named elliptic curves over binary fields from X9.62, SECG,
+ and WAP/WTLS; add OIDs that were still missing.
- +) 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]
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
- +) 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]
+ *) Extend the EC library for elliptic curves over binary fields
+ (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
+ New EC_METHOD:
- *) 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.
+ EC_GF2m_simple_method
- Also avoid some overhead by not calling ssl_init_wbio_buffer()
- before just sending a HelloRequest.
- [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
+ New API functions:
- *) 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.)
+ EC_GROUP_new_curve_GF2m
+ EC_GROUP_set_curve_GF2m
+ EC_GROUP_get_curve_GF2m
+ EC_POINT_set_affine_coordinates_GF2m
+ EC_POINT_get_affine_coordinates_GF2m
+ EC_POINT_set_compressed_coordinates_GF2m
- 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]
+ Point compression for binary fields is disabled by default for
+ patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
+ enable it).
- +) Add some demos for certificate and certificate request creation.
- [Steve Henson]
+ As binary polynomials are represented as BIGNUMs, various members
+ of the EC_GROUP and EC_POINT data structures can be shared
+ between the implementations for prime fields and binary fields;
+ the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
+ are essentially identical to their ..._GFp counterparts.
+ (For simplicity, the '..._GFp' prefix has been dropped from
+ various internal method names.)
- +) 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]
+ An internal 'field_div' method (similar to 'field_mul' and
+ 'field_sqr') has been added; this is used only for binary fields.
- +) Add support for shared libraries for Unixware-7
- (Boyd Lynn Gerber <gerberb@zenez.com>).
- [Lutz Jaenicke]
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
- *) Add OpenUNIX-8 support including shared libraries
- (Boyd Lynn Gerber <gerberb@zenez.com>).
- [Lutz Jaenicke]
+ *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
+ through methods ('mul', 'precompute_mult').
+
+ The generic implementations (now internally called 'ec_wNAF_mul'
+ and 'ec_wNAF_precomputed_mult') remain the default if these
+ methods are undefined.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) New function EC_GROUP_get_degree, which is defined through
+ EC_METHOD. For curves over prime fields, this returns the bit
+ length of the modulus.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) New functions EC_GROUP_dup, EC_POINT_dup.
+ (These simply call ..._new and ..._copy).
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
+ Polynomials are represented as BIGNUMs (where the sign bit is not
+ used) in the following functions [macros]:
+
+ BN_GF2m_add
+ BN_GF2m_sub [= BN_GF2m_add]
+ BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
+ BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
+ BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
+ BN_GF2m_mod_inv
+ BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
+ BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
+ BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
+ BN_GF2m_cmp [= BN_ucmp]
+
+ (Note that only the 'mod' functions are actually for fields GF(2^m).
+ BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
+
+ For some functions, an the irreducible polynomial defining a
+ field can be given as an 'unsigned int[]' with strictly
+ decreasing elements giving the indices of those bits that are set;
+ i.e., p[] represents the polynomial
+ f(t) = t^p[0] + t^p[1] + ... + t^p[k]
+ where
+ p[0] > p[1] > ... > p[k] = 0.
+ This applies to the following functions:
+
+ BN_GF2m_mod_arr
+ BN_GF2m_mod_mul_arr
+ BN_GF2m_mod_sqr_arr
+ BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
+ BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
+ BN_GF2m_mod_exp_arr
+ BN_GF2m_mod_sqrt_arr
+ BN_GF2m_mod_solve_quad_arr
+ BN_GF2m_poly2arr
+ BN_GF2m_arr2poly
+
+ Conversion can be performed by the following functions:
+
+ BN_GF2m_poly2arr
+ BN_GF2m_arr2poly
+
+ bntest.c has additional tests for binary polynomial arithmetic.
+
+ Two implementations for BN_GF2m_mod_div() are available.
+ The default algorithm simply uses BN_GF2m_mod_inv() and
+ BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
+ if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
+ copyright notice in crypto/bn/bn_gf2m.c before enabling it).
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Add new error code 'ERR_R_DISABLED' that can be used when some
+ functionality is disabled at compile-time.
+ [Douglas Stebila <douglas.stebila@sun.com>]
+
+ *) Change default behaviour of 'openssl asn1parse' so that more
+ information is visible when viewing, e.g., a certificate:
+
+ Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
+ mode the content of non-printable OCTET STRINGs is output in a
+ style similar to INTEGERs, but with '[HEX DUMP]' prepended to
+ avoid the appearance of a printable string.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
+ functions
+ EC_GROUP_set_asn1_flag()
+ EC_GROUP_get_asn1_flag()
+ EC_GROUP_set_point_conversion_form()
+ EC_GROUP_get_point_conversion_form()
+ These control ASN1 encoding details:
+ - Curves (i.e., groups) are encoded explicitly unless asn1_flag
+ has been set to OPENSSL_EC_NAMED_CURVE.
+ - Points are encoded in uncompressed form by default; options for
+ asn1_for are as for point2oct, namely
+ POINT_CONVERSION_COMPRESSED
+ POINT_CONVERSION_UNCOMPRESSED
+ POINT_CONVERSION_HYBRID
+
+ Also add 'seed' and 'seed_len' members to EC_GROUP with access
+ functions
+ EC_GROUP_set_seed()
+ EC_GROUP_get0_seed()
+ EC_GROUP_get_seed_len()
+ This is used only for ASN1 purposes (so far).
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add 'field_type' member to EC_METHOD, which holds the NID
+ of the appropriate field type OID. The new function
+ EC_METHOD_get_field_type() returns this value.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add functions
+ EC_POINT_point2bn()
+ EC_POINT_bn2point()
+ EC_POINT_point2hex()
+ EC_POINT_hex2point()
+ providing useful interfaces to EC_POINT_point2oct() and
+ EC_POINT_oct2point().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Change internals of the EC library so that the functions
+ EC_GROUP_set_generator()
+ EC_GROUP_get_generator()
+ EC_GROUP_get_order()
+ EC_GROUP_get_cofactor()
+ are implemented directly in crypto/ec/ec_lib.c and not dispatched
+ to methods, which would lead to unnecessary code duplication when
+ adding different types of curves.
+ [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
+
+ *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
+ arithmetic, and such that modified wNAFs are generated
+ (which avoid length expansion in many cases).
+ [Bodo Moeller]
+
+ *) 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 ecparam' and 'openssl ecdsa'
+ (these are based on '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;
+ - ECDSA engine support has been added.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Include some named elliptic curves, and add OIDs from X9.62,
+ SECG, and WAP/WTLS. Each curve can be obtained from the new
+ function
+ EC_GROUP_new_by_nid(),
+ and the list of available named curves can be obtained with
+ EC_get_builtin_curves().
+ Also add a 'curve_name' member to EC_GROUP objects, which can be
+ accessed via
+ EC_GROUP_set_nid()
+ EC_GROUP_get_nid()
+ [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
+
+ *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
+ was actually never needed) and in BN_mul(). The removal in BN_mul()
+ required a small change in bn_mul_part_recursive() and the addition
+ of the functions bn_cmp_part_words(), bn_sub_part_words() and
+ bn_add_part_words(), which do the same thing as bn_cmp_words(),
+ bn_sub_words() and bn_add_words() except they take arrays with
+ differing sizes.
+ [Richard Levitte]
- *) 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]
+ Changes between 0.9.7b and 0.9.7c [xx XXX 2003]
- +) 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]
+ *) New -ignore_err option in ocsp application to stop the server
+ exiting on the first error in a request.
+ [Steve Henson]
- +) 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]
+ *) 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]
- +) 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]
+ *) Change X509_certificate_type() to mark the key as exported/exportable
+ when it's 512 *bits* long, not 512 bytes.
+ [Richard Levitte]
- *) BN_sqr() bug fix.
- [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
+ *) Change AES_cbc_encrypt() so it outputs exact multiple of
+ blocks during encryption.
+ [Richard Levitte]
- +) Make it possible to unload ranges of ERR strings with a new
- "ERR_unload_strings" function.
- [Geoff Thorpe]
+ *) 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]
- *) 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>]
+ *) 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]
- *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
- equivalent based on BN_pseudo_rand() instead of BN_rand().
+ Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
+
+ *) 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]
- +) Add a copy() function to EVP_MD.
- [Ben Laurie]
+ *) 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]
- +) Make EVP_MD routines take a context pointer instead of just the
- md_data void pointer.
- [Ben Laurie]
+ *) 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]
- +) 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]
+yet to be integrated into this CVS branch:
+- Geoff's ENGINE_set_default() fix
- +) 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.
+ *) Target "mingw" now allows native Windows code to be generated in
+ the Cygwin environment as well as with the MinGW compiler.
+ [Ulf Moeller]
- 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]
+ Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
- +) 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]
+ *) 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. (CAN-2003-0078)
- +) 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.
+ [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
+ Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
+ Martin Vuagnoux (EPFL, Ilion)]
- Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
- [Geoff Thorpe]
+ *) 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.
- *) 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]
+ 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 alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
- [Lutz Jaenicke]
+ *) Add support for FreeBSD on IA64.
+ [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
- +) Add EVP test program.
- [Ben Laurie]
+ *) 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]
- +) Add symmetric cipher support to ENGINE. Expect the API to change!
- [Ben Laurie]
+ *) 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.
- +) 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]
+ Now the chain builder is disabled if either:
- *) 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]
+ 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
- *) 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]
+ 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
- *) 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>]
+ 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]
- +) 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]
+ *) Add the possibility to build without the ENGINE framework.
+ [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
- +) 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.
- [Ben Laurie]
+ *) Under Win32 gmtime() can return NULL: check return value in
+ OPENSSL_gmtime(). Add error code for case where gmtime() fails.
+ [Steve Henson]
- +) 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).
- [Ben Laurie]
+ *) 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]
- *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
+ *) 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]
- *) 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.
+ *) 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]
- +) 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.
+ *) 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
+ 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]
- *) 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]
+ *) 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]
- *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
- dh->length and always used
+ *) 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]
- BN_rand_range(priv_key, dh->p).
+ *) 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]
- 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.
+ *) Introduce safe string copy and catenation functions
+ (BUF_strlcpy() and BUF_strlcat()).
+ [Ben Laurie (CHATS) and Richard Levitte]
- So switch back to
+ *) Avoid using fixed-size buffers for one-line DNs.
+ [Ben Laurie (CHATS)]
- BN_rand(priv_key, l, ...)
+ *) Add BUF_MEM_grow_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
- where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
- otherwise.
- [Bodo Moeller]
+ *) Avoid using fixed size buffers for configuration file location.
+ [Ben Laurie (CHATS)]
- *) In
+ *) Avoid filename truncation for various CA files.
+ [Ben Laurie (CHATS)]
- RSA_eay_public_encrypt
- RSA_eay_private_decrypt
- RSA_eay_private_encrypt (signing)
- RSA_eay_public_decrypt (signature verification)
+ *) Use sizeof in preference to magic numbers.
+ [Ben Laurie (CHATS)]
- (default implementations for RSA_public_encrypt,
- RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
- always reject numbers >= n.
- [Bodo Moeller]
+ *) Avoid filename truncation in cert requests.
+ [Ben Laurie (CHATS)]
- *) 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]
+ *) Add assertions to check for (supposedly impossible) buffer
+ overflows.
+ [Ben Laurie (CHATS)]
- *) 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>]
+ *) Don't cache truncated DNS entries in the local cache (this could
+ potentially lead to a spoofing attack).
+ [Ben Laurie (CHATS)]
- +) Cleanup of EVP macros.
- [Ben Laurie]
+ *) Fix various buffers to be large enough for hex/decimal
+ representations in a platform independent manner.
+ [Ben Laurie (CHATS)]
- +) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
- correct _ecb suffix.
- [Ben Laurie]
+ *) Add CRYPTO_realloc_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
- +) 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 BIO_indent() to avoid much slightly worrying code to do
+ indents.
+ [Ben Laurie (CHATS)]
- +) Add configuration choices to get zlib compression for TLS.
- [Richard Levitte]
+ *) Convert sprintf()/BIO_puts() to BIO_printf().
+ [Ben Laurie (CHATS)]
- +) 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.
+ *) buffer_gets() could terminate with the buffer only half
+ full. Fixed.
+ [Ben Laurie (CHATS)]
- Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
- and authenticator structs; see crypto/krb5/.
+ *) Add assertions to prevent user-supplied crypto functions from
+ overflowing internal buffers by having large block sizes, etc.
+ [Ben Laurie (CHATS)]
- Generalized Kerberos calls to support multiple Kerberos libraries.
- [Vern Staats <staatsvr@asc.hpc.mil>,
- Jeffrey Altman <jaltman@columbia.edu>
- via Richard Levitte]
+ *) New OPENSSL_assert() macro (similar to assert(), but enabled
+ unconditionally).
+ [Ben Laurie (CHATS)]
- +) 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]
+ *) Eliminate unused copy of key in RC4.
+ [Ben Laurie (CHATS)]
- *) Add support for shared libraries under Irix.
- [Albert Chin-A-Young <china@thewrittenword.com>]
+ *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
+ [Ben Laurie (CHATS)]
- *) Add configuration option to build on Linux on both big-endian and
- little-endian MIPS.
- [Ralf Baechle <ralf@uni-koblenz.de>]
+ *) Fix off-by-one error in EGD path.
+ [Ben Laurie (CHATS)]
- *) Add the possibility to create shared libraries on HP-UX.
+ *) 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.
+ (CAN-2002-0657)
+ [Ben Laurie (CHATS)]
+
+ *) Change the SSL kerb5 codes to match RFC 2712.
[Richard Levitte]
- -) OpenSSL 0.9.6b released [9 July 2001]
+ *) Make -nameopt work fully for req and add -reqopt switch.
+ [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
- *) 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'.
+ *) The "block size" for block ciphers in CFB and OFB mode should be 1.
+ [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
- 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.
+ *) 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>]
- 2. Make the number of bytes from 'state' included into the hash
- independent from the number of PRNG bytes requested.
+ *) 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.
- 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]
-
- +) 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
+ (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>)
+ [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]
+
+ *) 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]
+
+ *) 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]
+
+ *) 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.
+
+ 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).
+ [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 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 */
+
+ [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.
+ [Steve Henson]
+
+ *) Allow multiple 'certopt' and 'nameopt' options to be separated
+ by commas. Add 'namopt' and 'certopt' options to the 'ca' config
+ file: this allows the display of the certificate about to be
+ signed to be customised, to allow certain fields to be included
+ or excluded and extension details. The old system didn't display
+ multicharacter strings properly, omitted fields not in the policy
+ and couldn't display additional details such as extensions.
+ [Steve Henson]
+
+ *) 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].
+
+ EC_POINT_mul is a simple wrapper function for the typical case
+ that the point list has just one item (besides the optional
+ generator).
+ [Bodo Moeller]
+
+ *) First EC_METHODs for curves over GF(p):
+
+ EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
+ operations and provides various method functions that can also
+ operate with faster implementations of modular arithmetic.
+
+ EC_GFp_mont_method() reuses most functions that are part of
+ EC_GFp_simple_method, but uses Montgomery arithmetic.
+
+ [Bodo Moeller; point addition and point doubling
+ implementation directly derived from source code provided by
+ Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
+
+ *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
+ crypto/ec/ec_lib.c):
+
+ Curves are EC_GROUP objects (with an optional group generator)
+ based on EC_METHODs that are built into the library.
+
+ Points are EC_POINT objects based on EC_GROUP objects.
+
+ Most of the framework would be able to handle curves over arbitrary
+ finite fields, but as there are no obvious types for fields other
+ than GF(p), some functions are limited to that for now.
+ [Bodo Moeller]
+
+ *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
+ that the file contains a complete HTTP response.
+ [Richard Levitte]
+
+ *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
+ change the def and num file printf format specifier from "%-40sXXX"
+ to "%-39s XXX". The latter will always guarantee a space after the
+ field while the former will cause them to run together if the field
+ is 40 of more characters long.
+ [Steve Henson]
+
+ *) Constify the cipher and digest 'method' functions and structures
+ and modify related functions to take constant EVP_MD and EVP_CIPHER
+ pointers.
+ [Steve Henson]
+
+ *) 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]
+
+ *) Modify EVP_Digest*() routines so they now return values. Although the
+ internal software routines can never fail additional hardware versions
+ might.
+ [Steve Henson]
+
+ *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
+
+ Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
+ (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
+
+ ASN1 error codes
+ ERR_R_NESTED_ASN1_ERROR
+ ...
+ ERR_R_MISSING_ASN1_EOS
+ were 4 .. 9, conflicting with
+ ERR_LIB_RSA (= ERR_R_RSA_LIB)
+ ...
+ ERR_LIB_PEM (= ERR_R_PEM_LIB).
+ They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
+
+ Add new error code 'ERR_R_INTERNAL_ERROR'.
+ [Bodo Moeller]
+
+ *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
+ suffices.
+ [Bodo Moeller]
+
+ *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
+ sets the subject name for a new request or supersedes the
+ subject name in a given request. Formats that can be parsed are
+ 'CN=Some Name, OU=myOU, C=IT'
+ and
+ 'CN=Some Name/OU=myOU/C=IT'.
+
+ Add options '-batch' and '-verbose' to 'openssl req'.
+ [Massimiliano Pala <madwolf@hackmasters.net>]
+
+ *) 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,
+ one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
+ "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
+ is normally done by Configure or something similar).
+
+ To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
+ in the source file (foo.c) like this:
+
+ OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
+ OPENSSL_IMPLEMENT_GLOBAL(double,bar);
+
+ To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
+ and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
+
+ OPENSSL_DECLARE_GLOBAL(int,foo);
+ #define foo OPENSSL_GLOBAL_REF(foo)
+ OPENSSL_DECLARE_GLOBAL(double,bar);
+ #define bar OPENSSL_GLOBAL_REF(bar)
+
+ The #defines are very important, and therefore so is including the
+ 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 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
+ go into the Windows .def files as well as a number of fixes and code
+ cleanup (among others, algorithm keywords are now sorted
+ lexicographically to avoid constant rewrites).
+ [Richard Levitte]
+
+ *) 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
+ problems with BN_mod() and BN_nnmod().
+ [Steve Henson]
+
+ *) Function OCSP_request_verify(). This checks the signature on an
+ OCSP request and verifies the signer certificate. The signer
+ certificate is just checked for a generic purpose and OCSP request
+ trust settings.
+ [Steve Henson]
+
+ *) Add OCSP_check_validity() function to check the validity of OCSP
+ 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 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
+ ocsp utility.
+ [Steve Henson]
+
+ *) If signature or public key algorithm is unrecognized print out its
+ OID rather that just UNKNOWN.
+ [Steve Henson]
+
+ *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
+ OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
+ ID to be generated from the issuer certificate alone which can then be
+ passed to OCSP_id_issuer_cmp().
+ [Steve Henson]
+
+ *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
+ ASN1 modules to export functions returning ASN1_ITEM pointers
+ instead of the ASN1_ITEM structures themselves. This adds several
+ new macros which allow the underlying ASN1 function/structure to
+ be accessed transparently. As a result code should not use ASN1_ITEM
+ references directly (such as &X509_it) but instead use the relevant
+ macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
+ use of the new ASN1 code on platforms where exporting structures
+ is problematical (for example in shared libraries) but exporting
+ functions returning pointers to structures is not.
+ [Steve Henson]
+
+ *) Add support for overriding the generation of SSL/TLS session IDs.
+ These callbacks can be registered either in an SSL_CTX or per SSL.
+ The purpose of this is to allow applications to control, if they wish,
+ the arbitrary values chosen for use as session IDs, particularly as it
+ can be useful for session caching in multiple-server environments. A
+ command-line switch for testing this (and any client code that wishes
+ to use such a feature) has been added to "s_server".
+ [Geoff Thorpe, Lutz Jaenicke]
+
+ *) 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]
+
+ *) 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
+ sure e_os2.h will cover all platform-specific cases together with
+ opensslconf.h.
+ Additionally, it is now possible to define configuration/platform-
+ specific names (called "system identities"). In the C code, these
+ are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
+ macro with the name beginning with "OPENSSL_SYS_", which is determined
+ from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
+ what is available.
+ [Richard Levitte]
+
+ *) New option -set_serial to 'req' and 'x509' this allows the serial
+ number to use to be specified on the command line. Previously self
+ signed certificates were hard coded with serial number 0 and the
+ CA options of 'x509' had to use a serial number in a file which was
+ auto incremented.
+ [Steve Henson]
+
+ *) 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]
+
+ *) 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
+ not padded in any way and so the total length much be a multiple
+ of the block size, otherwise an error occurs.
+ [Steve Henson]
+
+ *) Initial (incomplete) OCSP SSL support.
+ [Steve Henson]
+
+ *) 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.
+ [Steve Henson]
+
+ *) New nonce behavior. The return value of OCSP_check_nonce() now
+ reflects the various checks performed. Applications can decide
+ whether to tolerate certain situations such as an absent nonce
+ in a response when one was present in a request: the ocsp application
+ just prints out a warning. New function OCSP_add1_basic_nonce()
+ this is to allow responders to include a nonce in a response even if
+ the request is nonce-less.
+ [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".
+ [Bodo Moeller]
+
+ *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
+ set string type: to handle setting ASN1_TIME structures. Fix ca
+ utility to correctly initialize revocation date of CRLs.
+ [Steve Henson]
+
+ *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
+ 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
+ to aes and add a new 'exist' option to print out symbols that don't
+ appear to exist.
+ [Steve Henson]
+
+ *) Additional options to ocsp utility to allow flags to be set and
+ additional certificates supplied.
+ [Steve Henson]
+
+ *) Add the option -VAfile to 'openssl ocsp', so the user can give the
+ OCSP client a number of certificate to only verify the response
+ signature against.
+ [Richard Levitte]
+
+ *) 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 RFC3268, "Advanced
+ Encryption Standard (AES) Ciphersuites for Transport Layer
+ Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
+ not enabled by default and were not part of the "ALL" ciphersuite
+ alias because they were not yet official; they could be
+ explicitly requested by specifying the "AESdraft" ciphersuite
+ group alias. In the final release of OpenSSL 0.9.7, the group
+ alias is called "AES" and is part of "ALL".)
+ [Ben Laurie, Steve Henson, Bodo Moeller]
+
+ *) New function OCSP_copy_nonce() to copy nonce value (if present) from
+ request to response.
+ [Steve Henson]
+
+ *) Functions for OCSP responders. OCSP_request_onereq_count(),
+ OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
+ 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
+ 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()
+ (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
+ (converts ASN1_TIME to GeneralizedTime).
+ [Steve Henson]
+
+ *) 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 the public_key
+ contents: this is used in various key identifiers.
+ [Steve Henson]
+
+ *) 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
+ 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
+ to data. This was previously part of the PKCS7 ASN1 code. This
+ was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
+ [Steve Henson, reported by Kenneth R. Robinette
+ <support@securenetterm.com>]
+
+ *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
+ routines: without these tracing memory leaks is very painful.
+ Fix leaks in PKCS12 and PKCS7 routines.
+ [Steve Henson]
+
+ *) 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
+ is initialised to -1 but X509_time_adj() now has to check the value
+ and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
+ V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
+ [Steve Henson, reported by Kenneth R. Robinette
+ <support@securenetterm.com>]
+
+ *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
+ result in a zero length in the ASN1_INTEGER structure which was
+ not consistent with the structure when d2i_ASN1_INTEGER() was used
+ and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
+ to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
+ where it did not print out a minus for negative ASN1_INTEGER.
+ [Steve Henson]
+
+ *) 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
+ OCSP_crl_reason_str() and are no longer static. New options
+ to verify nonce values and to disable verification. OCSP response
+ printout format cleaned up.
+ [Steve Henson]
+
+ *) Add additional OCSP certificate checks. These are those specified
+ in RFC2560. This consists of two separate checks: the CA of the
+ certificate being checked must either be the OCSP signer certificate
+ or the issuer of the OCSP signer certificate. In the latter case the
+ OCSP signer certificate must contain the OCSP signing extended key
+ usage. This check is performed by attempting to match the OCSP
+ signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
+ in the OCSP_CERTID structures of the response.
+ [Steve Henson]
+
+ *) Initial OCSP certificate verification added to OCSP_basic_verify()
+ and related routines. This uses the standard OpenSSL certificate
+ verify routines to perform initial checks (just CA validity) and
+ to obtain the certificate chain. Then additional checks will be
+ performed on the chain. Currently the root CA is checked to see
+ if it is explicitly trusted for OCSP signing. This is used to set
+ a root CA as a global signing root: that is any certificate that
+ chains to that CA is an acceptable OCSP signing certificate.
+ [Steve Henson]
+
+ *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
+ extensions from a separate configuration file.
+ As when reading extensions from the main configuration file,
+ the '-extensions ...' option may be used for specifying the
+ section to use.
+ [Massimiliano Pala <madwolf@comune.modena.it>]
+
+ *) 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:
+ still needs to check the OCSP response validity.
+ [Steve Henson]
+
+ *) New subcommands for 'openssl ca':
+ 'openssl ca -status <serial>' prints the status of the cert with
+ the given serial number (according to the index file).
+ 'openssl ca -updatedb' updates the expiry status of certificates
+ in the index file.
+ [Massimiliano Pala <madwolf@comune.modena.it>]
+
+ *) New '-newreq-nodes' command option to CA.pl. This is like
+ '-newreq', but calls 'openssl req' with the '-nodes' option
+ so that the resulting key is not encrypted.
+ [Damien Miller <djm@mindrot.org>]
+
+ *) New configuration for the GNU Hurd.
+ [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
+
+ *) Initial code to implement OCSP basic response verify. This
+ is currently incomplete. Currently just finds the signer's
+ certificate and verifies the signature on the response.
+ [Steve Henson]
+
+ *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
+ value of OPENSSLDIR. This is available via the new '-d' option
+ to 'openssl version', and is also included in 'openssl version -a'.
+ [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
+ well as the original possibility to just replace malloc(),
+ realloc() and free() by functions that do not know about these
+ additional arguments. To register and find out the current
+ settings for extended allocation functions, the following
+ functions are provided:
+
+ CRYPTO_set_mem_ex_functions
+ CRYPTO_set_locked_mem_ex_functions
+ CRYPTO_get_mem_ex_functions
+ CRYPTO_get_locked_mem_ex_functions
+
+ These work the same way as CRYPTO_set_mem_functions and friends.
+ CRYPTO_get_[locked_]mem_functions now writes 0 where such an
+ extended allocation function is enabled.
+ Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
+ a conventional allocation function is enabled.
+ [Richard Levitte, Bodo Moeller]
+
+ *) 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
+ the callback types and macros at the head of lhash.h for details
+ (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
+ [Geoff Thorpe]
+
+ *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
+ 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
+ random devices, as specified by DEVRANDOM, until a sufficient amount
+ of data has been collected. We spend at most 10 ms on each file
+ (select timeout) and read in non-blocking mode. DEVRANDOM now
+ defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
+ (previously it was just the string "/dev/urandom"), so on typical
+ platforms the 10 ms delay will never occur.
+ Also separate out the Unix variant to its own file, rand_unix.c.
+ For VMS, there's a currently-empty rand_vms.c.
+ [Richard Levitte]
+
+ *) Move OCSP client related routines to ocsp_cl.c. These
+ provide utility functions which an application needing
+ to issue a request to an OCSP responder and analyse the
+ response will typically need: as opposed to those which an
+ OCSP responder itself would need which will be added later.
+
+ OCSP_request_sign() signs an OCSP request with an API similar
+ to PKCS7_sign(). OCSP_response_status() returns status of OCSP
+ response. OCSP_response_get1_basic() extracts basic response
+ from response. OCSP_resp_find_status(): finds and extracts status
+ information from an OCSP_CERTID structure (which will be created
+ when the request structure is built). These are built from lower
+ level functions which work on OCSP_SINGLERESP structures but
+ wont normally be used unless the application wishes to examine
+ extensions in the OCSP response for example.
+
+ Replace nonce routines with a pair of functions.
+ OCSP_request_add1_nonce() adds a nonce value and optionally
+ generates a random value. OCSP_check_nonce() checks the
+ validity of the nonce in an OCSP response.
+ [Steve Henson]
+
+ *) Change function OCSP_request_add() to OCSP_request_add0_id().
+ This doesn't copy the supplied OCSP_CERTID and avoids the
+ need to free up the newly created id. Change return type
+ to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
+ This can then be used to add extensions to the request.
+ Deleted OCSP_request_new(), since most of its functionality
+ is now in OCSP_REQUEST_new() (and the case insensitive name
+ clash) apart from the ability to set the request name which
+ will be added elsewhere.
+ [Steve Henson]
+
+ *) Update OCSP API. Remove obsolete extensions argument from
+ various functions. Extensions are now handled using the new
+ OCSP extension code. New simple OCSP HTTP function which
+ can be used to send requests and parse the response.
+ [Steve Henson]
+
+ *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
+ ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
+ uses the special reorder version of SET OF to sort the attributes
+ and reorder them to match the encoded order. This resolves a long
+ standing problem: a verify on a PKCS7 structure just after signing
+ it used to fail because the attribute order did not match the
+ encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
+ it uses the received order. This is necessary to tolerate some broken
+ software that does not order SET OF. This is handled by encoding
+ as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
+ to produce the required SET OF.
+ [Steve Henson]
+
+ *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
+ OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
+ files to get correct declarations of the ASN.1 item variables.
+ [Richard Levitte]
+
+ *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
+ PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
+ asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
+ NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
+ New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
+ ASN1_ITEM and no wrapper functions.
+ [Steve Henson]
+
+ *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
+ replace the old function pointer based I/O routines. Change most of
+ the *_d2i_bio() and *_d2i_fp() functions to use these.
+ [Steve Henson]
+
+ *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
+ lines, recognice more "algorithms" that can be deselected, and make
+ it complain about algorithm deselection that isn't recognised.
+ [Richard Levitte]
+
+ *) New ASN1 functions to handle dup, sign, verify, digest, pack and
+ unpack operations in terms of ASN1_ITEM. Modify existing wrappers
+ to use new functions. Add NO_ASN1_OLD which can be set to remove
+ some old style ASN1 functions: this can be used to determine if old
+ code will still work when these eventually go away.
+ [Steve Henson]
+
+ *) New extension functions for OCSP structures, these follow the
+ same conventions as certificates and CRLs.
+ [Steve Henson]
+
+ *) New function X509V3_add1_i2d(). This automatically encodes and
+ adds an extension. Its behaviour can be customised with various
+ flags to append, replace or delete. Various wrappers added for
+ certifcates and CRLs.
+ [Steve Henson]
+
+ *) Fix to avoid calling the underlying ASN1 print routine when
+ an extension cannot be parsed. Correct a typo in the
+ OCSP_SERVICELOC extension. Tidy up print OCSP format.
+ [Steve Henson]
+
+ *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
+ entries for variables.
+ [Steve Henson]
+
+ *) 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
+ storing which locks are currently held by the program.
+ [Bodo Moeller]
+
+ *) Use a lock around the call to CRYPTO_get_ex_new_index() in
+ SSL_get_ex_data_X509_STORE_idx(), which is used in
+ ssl_verify_cert_chain() and thus can be called at any time
+ during TLS/SSL handshakes so that thread-safety is essential.
+ Unfortunately, the ex_data design is not at all suited
+ for multi-threaded use, so it probably should be abolished.
+ [Bodo Moeller]
+
+ *) Added Broadcom "ubsec" ENGINE to OpenSSL.
+ [Broadcom, tweaked and integrated by Geoff Thorpe]
+
+ *) Move common extension printing code to new function
+ X509V3_print_extensions(). Reorganise OCSP print routines and
+ implement some needed OCSP ASN1 functions. Add OCSP extensions.
+ [Steve Henson]
+
+ *) New function X509_signature_print() to remove duplication in some
+ print routines.
+ [Steve Henson]
+
+ *) Add a special meaning when SET OF and SEQUENCE OF flags are both
+ set (this was treated exactly the same as SET OF previously). This
+ is used to reorder the STACK representing the structure to match the
+ encoding. This will be used to get round a problem where a PKCS7
+ structure which was signed could not be verified because the STACK
+ order did not reflect the encoded order.
+ [Steve Henson]
+
+ *) Reimplement the OCSP ASN1 module using the new code.
+ [Steve Henson]
+
+ *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
+ for its ASN1 operations. The old style function pointers still exist
+ for now but they will eventually go away.
+ [Steve Henson]
+
+ *) Merge in replacement ASN1 code from the ASN1 branch. This almost
+ completely replaces the old ASN1 functionality with a table driven
+ encoder and decoder which interprets an ASN1_ITEM structure describing
+ the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
+ largely maintained. Almost all of the old asn1_mac.h macro based ASN1
+ has also been converted to the new form.
+ [Steve Henson]
+
+ *) Change BN_mod_exp_recp so that negative moduli are tolerated
+ (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
+ so that BN_mod_exp_mont and BN_mod_exp_mont_word work
+ for negative moduli.
+ [Bodo Moeller]
+
+ *) Fix BN_uadd and BN_usub: Always return non-negative results instead
+ of not touching the result's sign bit.
+ [Bodo Moeller]
+
+ *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
+ set.
+ [Bodo Moeller]
+
+ *) Changed the LHASH code to use prototypes for callbacks, and created
+ macros to declare and implement thin (optionally static) functions
+ that provide type-safety and avoid function pointer casting for the
+ type-specific callbacks.
+ [Geoff Thorpe]
+
+ *) 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]
+
+ *) Reformat the FAQ so the different questions and answers can be divided
+ in sections depending on the subject.
+ [Richard Levitte]
+
+ *) Have the zlib compression code load ZLIB.DLL dynamically under
+ Windows.
+ [Richard Levitte]
+
+ *) New function BN_mod_sqrt for computing square roots modulo a prime
+ (using the probabilistic Tonelli-Shanks algorithm unless
+ p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
+ be handled deterministically).
+ [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
+
+ *) 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]
+
+ *) New function BN_kronecker.
+ [Bodo Moeller]
+
+ *) Fix BN_gcd so that it works on negative inputs; the result is
+ positive unless both parameters are zero.
+ Previously something reasonably close to an infinite loop was
+ possible because numbers could be growing instead of shrinking
+ in the implementation of Euclid's algorithm.
+ [Bodo Moeller]
+
+ *) Fix BN_is_word() and BN_is_one() macros to take into account the
+ sign of the number in question.
+
+ Fix BN_is_word(a,w) to work correctly for w == 0.
+
+ The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
+ because its test if the absolute value of 'a' equals 'w'.
+ Note that BN_abs_is_word does *not* handle w == 0 reliably;
+ it exists mostly for use in the implementations of BN_is_zero(),
+ BN_is_one(), and BN_is_word().
+ [Bodo Moeller]
+
+ *) New function BN_swap.
+ [Bodo Moeller]
+
+ *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
+ the exponentiation functions are more likely to produce reasonable
+ results on negative inputs.
+ [Bodo Moeller]
+
+ *) Change BN_mod_mul so that the result is always non-negative.
+ Previously, it could be negative if one of the factors was negative;
+ I don't think anyone really wanted that behaviour.
+ [Bodo Moeller]
+
+ *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
+ (except for exponentiation, which stays in crypto/bn/bn_exp.c,
+ and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
+ and add new functions:
+
+ BN_nnmod
+ BN_mod_sqr
+ BN_mod_add
+ BN_mod_add_quick
+ BN_mod_sub
+ BN_mod_sub_quick
+ BN_mod_lshift1
+ BN_mod_lshift1_quick
+ BN_mod_lshift
+ BN_mod_lshift_quick
+
+ These functions always generate non-negative results.
+
+ BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
+ such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
+
+ BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
+ BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
+ be reduced modulo m.
+ [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
+
+#if 0
+ The following entry accidentily appeared in the CHANGES file
+ distributed with OpenSSL 0.9.7. The modifications described in
+ it do *not* apply to OpenSSL 0.9.7.
+
+ *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
+ was actually never needed) and in BN_mul(). The removal in BN_mul()
+ required a small change in bn_mul_part_recursive() and the addition
+ of the functions bn_cmp_part_words(), bn_sub_part_words() and
+ bn_add_part_words(), which do the same thing as bn_cmp_words(),
+ bn_sub_words() and bn_add_words() except they take arrays with
+ differing sizes.
+ [Richard Levitte]
+#endif
+
+ *) In 'openssl passwd', verify passwords read from the terminal
+ unless the '-salt' option is used (which usually means that
+ verification would just waste user's time since the resulting
+ hash is going to be compared with some given password hash)
+ or the new '-noverify' option is used.
+
+ This is an incompatible change, but it does not affect
+ non-interactive use of 'openssl passwd' (passwords on the command
+ line, '-stdin' option, '-in ...' option) and thus should not
+ cause any problems.
+ [Bodo Moeller]
+
+ *) Remove all references to RSAref, since there's no more need for it.
+ [Richard Levitte]
+
+ *) Make DSO load along a path given through an environment variable
+ (SHLIB_PATH) with shl_load().
+ [Richard Levitte]
+
+ *) Constify the ENGINE code as a result of BIGNUM constification.
+ Also constify the RSA code and most things related to it. In a
+ few places, most notable in the depth of the ASN.1 code, ugly
+ casts back to non-const were required (to be solved at a later
+ time)
+ [Richard Levitte]
+
+ *) Make it so the openssl application has all engines loaded by default.
+ [Richard Levitte]
+
+ *) Constify the BIGNUM routines a little more.
+ [Richard Levitte]
+
+ *) Add the following functions:
+
+ ENGINE_load_cswift()
+ ENGINE_load_chil()
+ ENGINE_load_atalla()
+ ENGINE_load_nuron()
+ ENGINE_load_builtin_engines()
+
+ That way, an application can itself choose if external engines that
+ are built-in in OpenSSL shall ever be used or not. The benefit is
+ that applications won't have to be linked with libdl or other dso
+ libraries unless it's really needed.
+
+ Changed 'openssl engine' to load all engines on demand.
+ Changed the engine header files to avoid the duplication of some
+ declarations (they differed!).
+ [Richard Levitte]
+
+ *) 'openssl engine' can now list capabilities.
+ [Richard Levitte]
+
+ *) Better error reporting in 'openssl engine'.
+ [Richard Levitte]
+
+ *) Never call load_dh_param(NULL) in s_server.
+ [Bodo Moeller]
+
+ *) Add engine application. It can currently list engines by name and
+ identity, and test if they are actually available.
+ [Richard Levitte]
+
+ *) 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>]
+
+ *) Give the OpenSSL applications more possibilities to make use of
+ keys (public as well as private) handled by engines.
+ [Richard Levitte]
+
+ *) Add OCSP code that comes from CertCo.
+ [Richard Levitte]
+
+ *) Add VMS support for the Rijndael code.
+ [Richard Levitte]
+
+ *) Added untested support for Nuron crypto accelerator.
+ [Ben Laurie]
+
+ *) Add support for external cryptographic devices. This code was
+ previously distributed separately as the "engine" branch.
+ [Geoff Thorpe, Richard Levitte]
+
+ *) Rework the filename-translation in the DSO code. It is now possible to
+ have far greater control over how a "name" is turned into a filename
+ depending on the operating environment and any oddities about the
+ different shared library filenames on each system.
+ [Geoff Thorpe]
+
+ *) Support threads on FreeBSD-elf in Configure.
+ [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
+ of two sections.
+ [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
+
+ *) NCONF changes.
+ NCONF_get_number() has no error checking at all. As a replacement,
+ NCONF_get_number_e() is defined (_e for "error checking") and is
+ promoted strongly. The old NCONF_get_number is kept around for
+ binary backward compatibility.
+ Make it possible for methods to load from something other than a BIO,
+ by providing a function pointer that is given a name instead of a BIO.
+ For example, this could be used to load configuration data from an
+ LDAP server.
+ [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
+ implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
+ this case.
+ [Steve Henson]
+
+ *) Added the beginnings of Rijndael support.
+ [Ben Laurie]
+
+ *) Fix for bug in DirectoryString mask setting. Add support for
+ X509_NAME_print_ex() in 'req' and X509_print_ex() function
+ to allow certificate printing to more controllable, additional
+ 'certopt' option to 'x509' to allow new printing options to be
+ set.
+ [Steve Henson]
+
+ *) Clean old EAY MD5 hack from e_os.h.
+ [Richard Levitte]
+
+ Changes between 0.9.6j and 0.9.6k [xx XXX 2003]
+
+ *) 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]
+
+ Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
+
+ *) 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]
+
+ Changes between 0.9.6h and 0.9.6i [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. (CAN-2003-0078)
+
+ [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
+ Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
+ Martin Vuagnoux (EPFL, Ilion)]
+
+ Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
+
+ *) New function OPENSSL_cleanse(), which is used to cleanse a section of
+ memory from it's contents. This is done with a counter that will
+ place alternating values in each byte. This can be used to solve
+ two issues: 1) the removal of calls to memset() by highly optimizing
+ compilers, and 2) cleansing with other values than 0, since those can
+ be read through on certain media, for example a swap space on disk.
+ [Geoff Thorpe]
+
+ *) Bugfix: client side session caching did not work with external caching,
+ because the session->cipher setting was not restored when reloading
+ from the external cache. This problem was masked, when
+ SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
+ (Found by Steve Haslam <steve@araqnid.ddts.net>.)
+ [Lutz Jaenicke]
+
+ *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
+ length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
+ [Zeev Lieber <zeev-l@yahoo.com>]
+
+ *) Undo an undocumented change introduced in 0.9.6e which caused
+ repeated calls to OpenSSL_add_all_ciphers() and
+ OpenSSL_add_all_digests() to be ignored, even after calling
+ EVP_cleanup().
+ [Richard Levitte]
+
+ *) Change the default configuration reader to deal with last line not
+ being properly terminated.
+ [Richard Levitte]
+
+ *) Change X509_NAME_cmp() so it applies the special rules on handling
+ DN values that are of type PrintableString, as well as RDNs of type
+ emailAddress where the value has the type ia5String.
+ [stefank@valicert.com via Richard Levitte]
+
+ *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
+ the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
+ doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
+ the bitwise-OR of the two for use by the majority of applications
+ wanting this behaviour, and update the docs. The documented
+ behaviour and actual behaviour were inconsistent and had been
+ changing anyway, so this is more a bug-fix than a behavioural
+ change.
+ [Geoff Thorpe, diagnosed by Nadav Har'El]
+
+ *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
+ (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
+ [Bodo Moeller]
+
+ *) Fix initialization code race conditions in
+ SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
+ SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
+ SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
+ TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
+ ssl2_get_cipher_by_char(),
+ ssl3_get_cipher_by_char().
+ [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
+
+ *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
+ the cached sessions are flushed, as the remove_cb() might use ex_data
+ contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
+ (see [openssl.org #212]).
+ [Geoff Thorpe, Lutz Jaenicke]
+
+ *) Fix typo in OBJ_txt2obj which incorrectly passed the content
+ length, instead of the encoding length to d2i_ASN1_OBJECT.
+ [Steve Henson]
+
+ Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
+
+ *) [In 0.9.6g-engine release:]
+ Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
+ [Lynn Gazis <lgazis@rainbow.com>]
+
+ Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
+
+ *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
+ and get fix the header length calculation.
+ [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
+ Alon Kantor <alonk@checkpoint.com> (and others),
+ Steve Henson]
+
+ *) Use proper error handling instead of 'assertions' in buffer
+ overflow checks added in 0.9.6e. This prevents DoS (the
+ assertions could call abort()).
+ [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
+
+ Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
+
+ *) Add various sanity checks to asn1_get_length() to reject
+ the ASN1 length bytes if they exceed sizeof(long), will appear
+ negative or the content length exceeds the length of the
+ supplied buffer.
+ [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
+
+ *) Fix cipher selection routines: ciphers without encryption had no flags
+ for the cipher strength set and where therefore not handled correctly
+ by the selection routines (PR #130).
+ [Lutz Jaenicke]
+
+ *) Fix EVP_dsa_sha macro.
+ [Nils Larsch]
+
+ *) New option
+ SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
+ for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
+ that was added in OpenSSL 0.9.6d.
+
+ As the countermeasure turned out to be incompatible with some
+ broken SSL implementations, the new option is part of SSL_OP_ALL.
+ SSL_OP_ALL is usually employed when compatibility with weird SSL
+ implementations is desired (e.g. '-bugs' option to 's_client' and
+ 's_server'), so the new option is automatically set in many
+ applications.
+ [Bodo Moeller]
+
+ *) Changes in security patch:
+
+ Changes marked "(CHATS)" were sponsored by the Defense Advanced
+ Research Projects Agency (DARPA) and Air Force Research Laboratory,
+ Air Force Materiel Command, USAF, under agreement number
+ F30602-01-2-0537.
+
+ *) Add various sanity checks to asn1_get_length() to reject
+ the ASN1 length bytes if they exceed sizeof(long), will appear
+ negative or the content length exceeds the length of the
+ supplied buffer. (CAN-2002-0659)
+ [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
+
+ *) Assertions for various potential buffer overflows, not known to
+ happen in practice.
+ [Ben Laurie (CHATS)]
+
+ *) Various temporary buffers to hold ASCII versions of integers were
+ too small for 64 bit platforms. (CAN-2002-0655)
+ [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
+
+ *) Remote buffer overflow in SSL3 protocol - an attacker could
+ supply an oversized session ID to a client. (CAN-2002-0656)
+ [Ben Laurie (CHATS)]
+
+ *) Remote buffer overflow in SSL2 protocol - an attacker could
+ supply an oversized client master key. (CAN-2002-0656)
+ [Ben Laurie (CHATS)]
+
+ Changes between 0.9.6c and 0.9.6d [9 May 2002]
+
+ *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
+ encoded as NULL) with id-dsa-with-sha1.
+ [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
+
+ *) Check various X509_...() return values in apps/req.c.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
+ an end-of-file condition would erronously be flagged, when the CRLF
+ was just at the end of a processed block. The bug was discovered when
+ processing data through a buffering memory BIO handing the data to a
+ BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
+ <ptsekov@syntrex.com> and Nedelcho Stanev.
+ [Lutz Jaenicke]
+
+ *) Implement a countermeasure against a vulnerability recently found
+ in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
+ before application data chunks to avoid the use of known IVs
+ with data potentially chosen by the attacker.
+ [Bodo Moeller]
+
+ *) Fix length checks in ssl3_get_client_hello().
+ [Bodo Moeller]
+
+ *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
+ to prevent ssl3_read_internal() from incorrectly assuming that
+ ssl3_read_bytes() found application data while handshake
+ processing was enabled when in fact s->s3->in_read_app_data was
+ merely automatically cleared during the initial handshake.
+ [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Fix object definitions for Private and Enterprise: they were not
+ recognized in their shortname (=lowercase) representation. Extend
+ obj_dat.pl to issue an error when using undefined keywords instead
+ of silently ignoring the problem (Svenning Sorensen
+ <sss@sss.dnsalias.net>).
+ [Lutz Jaenicke]
+
+ *) Fix DH_generate_parameters() so that it works for 'non-standard'
+ generators, i.e. generators other than 2 and 5. (Previously, the
+ code did not properly initialise the 'add' and 'rem' values to
+ BN_generate_prime().)
+
+ In the new general case, we do not insist that 'generator' is
+ actually a primitive root: This requirement is rather pointless;
+ a generator of the order-q subgroup is just as good, if not
+ better.
+ [Bodo Moeller]
+
+ *) Map new X509 verification errors to alerts. Discovered and submitted by
+ Tom Wu <tom@arcot.com>.
+ [Lutz Jaenicke]
+
+ *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
+ returning non-zero before the data has been completely received
+ when using non-blocking I/O.
+ [Bodo Moeller; problem pointed out by John Hughes]
+
+ *) Some of the ciphers missed the strength entry (SSL_LOW etc).
+ [Ben Laurie, Lutz Jaenicke]
+
+ *) Fix bug in SSL_clear(): bad sessions were not removed (found by
+ Yoram Zahavi <YoramZ@gilian.com>).
+ [Lutz Jaenicke]
+
+ *) Add information about CygWin 1.3 and on, and preserve proper
+ configuration for the versions before that.
+ [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
+
+ *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
+ check whether we deal with a copy of a session and do not delete from
+ the cache in this case. Problem reported by "Izhar Shoshani Levi"
+ <izhar@checkpoint.com>.
+ [Lutz Jaenicke]
+
+ *) Do not store session data into the internal session cache, if it
+ is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
+ flag is set). Proposed by Aslam <aslam@funk.com>.
+ [Lutz Jaenicke]
+
+ *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
+ value is 0.
+ [Richard Levitte]
+
+ *) [In 0.9.6d-engine release:]
+ Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ *) Add the configuration target linux-s390x.
+ [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
+
+ *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
+ ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
+ variable as an indication that a ClientHello message has been
+ received. As the flag value will be lost between multiple
+ invocations of ssl3_accept when using non-blocking I/O, the
+ function may not be aware that a handshake has actually taken
+ place, thus preventing a new session from being added to the
+ session cache.
+
+ To avoid this problem, we now set s->new_session to 2 instead of
+ using a local variable.
+ [Lutz Jaenicke, Bodo Moeller]
+
+ *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
+ if the SSL_R_LENGTH_MISMATCH error is detected.
+ [Geoff Thorpe, Bodo Moeller]
+
+ *) New 'shared_ldflag' column in Configure platform table.
+ [Richard Levitte]
+
+ *) Fix EVP_CIPHER_mode macro.
+ ["Dan S. Camper" <dan@bti.net>]
+
+ *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
+ type, we must throw them away by setting rr->length to 0.
+ [D P Chang <dpc@qualys.com>]
+
+ Changes between 0.9.6b and 0.9.6c [21 dec 2001]
+
+ *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
+ <Dominikus.Scherkl@biodata.com>. (The previous implementation
+ worked incorrectly for those cases where range = 10..._2 and
+ 3*range is two bits longer than range.)
+ [Bodo Moeller]
+
+ *) Only add signing time to PKCS7 structures if it is not already
+ present.
+ [Steve Henson]
+
+ *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
+ OBJ_ld_ce should be OBJ_id_ce.
+ Also some ip-pda OIDs in crypto/objects/objects.txt were
+ incorrect (cf. RFC 3039).
+ [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
+
+ *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
+ returns early because it has nothing to do.
+ [Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) [In 0.9.6c-engine release:]
+ Fix mutex callback return values in crypto/engine/hw_ncipher.c.
+ [Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for Cryptographic Appliance's keyserver technology.
+ (Use engine 'keyclient')
+ [Cryptographic Appliances and Geoff Thorpe]
+
+ *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
+ is called via tools/c89.sh because arguments have to be
+ rearranged (all '-L' options must appear before the first object
+ modules).
+ [Richard Shapiro <rshapiro@abinitio.com>]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for Broadcom crypto accelerator cards, backported
+ from 0.9.7.
+ [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for SureWare crypto accelerator cards from
+ Baltimore Technologies. (Use engine 'sureware')
+ [Baltimore Technologies and Mark Cox]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for crypto accelerator cards from Accelerated
+ Encryption Processing, www.aep.ie. (Use engine 'aep')
+ [AEP Inc. and Mark Cox]
+
+ *) Add a configuration entry for gcc on UnixWare.
+ [Gary Benson <gbenson@redhat.com>]
+
+ *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
+ messages are stored in a single piece (fixed-length part and
+ variable-length part combined) and fix various bugs found on the way.
+ [Bodo Moeller]
+
+ *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
+ instead. BIO_gethostbyname() does not know what timeouts are
+ appropriate, so entries would stay in cache even when they have
+ become invalid.
+ [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
+
+ *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
+ faced with a pathologically small ClientHello fragment that does
+ not contain client_version: Instead of aborting with an error,
+ simply choose the highest available protocol version (i.e.,
+ TLS 1.0 unless it is disabled). In practice, ClientHello
+ messages are never sent like this, but this change gives us
+ strictly correct behaviour at least for TLS.
+ [Bodo Moeller]
+
+ *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
+ never resets s->method to s->ctx->method when called from within
+ one of the SSL handshake functions.
+ [Bodo Moeller; problem pointed out by Niko Baric]
+
+ *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
+ (sent using the client's version number) if client_version is
+ smaller than the protocol version in use. Also change
+ ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
+ the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
+ the client will at least see that alert.
+ [Bodo Moeller]
+
+ *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
+ correctly.
+ [Bodo Moeller]
+
+ *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
+ client receives HelloRequest while in a handshake.
+ [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
+ should end in 'break', not 'goto end' which circuments various
+ cleanups done in state SSL_ST_OK. But session related stuff
+ must be disabled for SSL_ST_OK in the case that we just sent a
+ HelloRequest.
+
+ Also avoid some overhead by not calling ssl_init_wbio_buffer()
+ before just sending a HelloRequest.
+ [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
+
+ *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
+ reveal whether illegal block cipher padding was found or a MAC
+ verification error occured. (Neither SSLerr() codes nor alerts
+ are directly visible to potential attackers, but the information
+ may leak via logfiles.)
+
+ Similar changes are not required for the SSL 2.0 implementation
+ because the number of padding bytes is sent in clear for SSL 2.0,
+ and the extra bytes are just ignored. However ssl/s2_pkt.c
+ failed to verify that the purported number of padding bytes is in
+ the legal range.
+ [Bodo Moeller]
+
+ *) Add OpenUNIX-8 support including shared libraries
+ (Boyd Lynn Gerber <gerberb@zenez.com>).
+ [Lutz Jaenicke]
+
+ *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
+ 'wristwatch attack' using huge encoding parameters (cf.
+ James H. Manger's CRYPTO 2001 paper). Note that the
+ RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
+ encoding parameters and hence was not vulnerable.
+ [Bodo Moeller]
+
+ *) BN_sqr() bug fix.
+ [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
+
+ *) Rabin-Miller test analyses assume uniformly distributed witnesses,
+ so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
+ followed by modular reduction.
+ [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
+
+ *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
+ equivalent based on BN_pseudo_rand() instead of BN_rand().
+ [Bodo Moeller]
+
+ *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
+ This function was broken, as the check for a new client hello message
+ to handle SGC did not allow these large messages.
+ (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
+ [Lutz Jaenicke]
+
+ *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
+ [Lutz Jaenicke]
+
+ *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
+ for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
+ [Lutz Jaenicke]
+
+ *) Rework the configuration and shared library support for Tru64 Unix.
+ The configuration part makes use of modern compiler features and
+ still retains old compiler behavior for those that run older versions
+ of the OS. The shared library support part includes a variant that
+ uses the RPATH feature, and is available through the special
+ configuration target "alpha-cc-rpath", which will never be selected
+ automatically.
+ [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
+
+ *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
+ with the same message size as in ssl3_get_certificate_request().
+ Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
+ messages might inadvertently be reject as too long.
+ [Petr Lampa <lampa@fee.vutbr.cz>]
+
+ *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
+ [Andy Polyakov]
+
+ *) Modified SSL library such that the verify_callback that has been set
+ specificly for an SSL object with SSL_set_verify() is actually being
+ used. Before the change, a verify_callback set with this function was
+ ignored and the verify_callback() set in the SSL_CTX at the time of
+ the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
+ to allow the necessary settings.
+ [Lutz Jaenicke]
+
+ *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
+ explicitly to NULL, as at least on Solaris 8 this seems not always to be
+ done automatically (in contradiction to the requirements of the C
+ standard). This made problems when used from OpenSSH.
+ [Lutz Jaenicke]
+
+ *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
+ dh->length and always used
+
+ BN_rand_range(priv_key, dh->p).
+
+ BN_rand_range() is not necessary for Diffie-Hellman, and this
+ specific range makes Diffie-Hellman unnecessarily inefficient if
+ dh->length (recommended exponent length) is much smaller than the
+ length of dh->p. We could use BN_rand_range() if the order of
+ the subgroup was stored in the DH structure, but we only have
+ dh->length.
+
+ So switch back to
+
+ BN_rand(priv_key, l, ...)
+
+ where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
+ otherwise.
+ [Bodo Moeller]
+
+ *) In
+
+ RSA_eay_public_encrypt
+ RSA_eay_private_decrypt
+ RSA_eay_private_encrypt (signing)
+ RSA_eay_public_decrypt (signature verification)
+
+ (default implementations for RSA_public_encrypt,
+ RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
+ always reject numbers >= n.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
+ to synchronize access to 'locking_thread'. This is necessary on
+ systems where access to 'locking_thread' (an 'unsigned long'
+ variable) is not atomic.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
+ *before* setting the 'crypto_lock_rand' flag. The previous code had
+ a race condition if 0 is a valid thread ID.
+ [Travis Vitek <vitek@roguewave.com>]
+
+ *) Add support for shared libraries under Irix.
+ [Albert Chin-A-Young <china@thewrittenword.com>]
+
+ *) Add configuration option to build on Linux on both big-endian and
+ little-endian MIPS.
+ [Ralf Baechle <ralf@uni-koblenz.de>]
+
+ *) Add the possibility to create shared libraries on HP-UX.
+ [Richard Levitte]
+
+ Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
+
+ *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
+ to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
+ Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
+ PRNG state recovery was possible based on the output of
+ one PRNG request appropriately sized to gain knowledge on
+ 'md' followed by enough consecutive 1-byte PRNG requests
+ to traverse all of 'state'.
+
+ 1. When updating 'md_local' (the current thread's copy of 'md')
+ during PRNG output generation, hash all of the previous
+ 'md_local' value, not just the half used for PRNG output.
+
+ 2. Make the number of bytes from 'state' included into the hash
+ independent from the number of PRNG bytes requested.
+
+ The first measure alone would be sufficient to avoid
+ Markku-Juhani's attack. (Actually it had never occurred
+ to me that the half of 'md_local' used for chaining was the
+ half from which PRNG output bytes were taken -- I had always
+ assumed that the secret half would be used.) The second
+ measure makes sure that additional data from 'state' is never
+ mixed into 'md_local' in small portions; this heuristically
+ further strengthens the PRNG.
+ [Bodo Moeller]
+
*) Fix crypto/bn/asm/mips3.s.
[Andy Polyakov]
an error message in this case.
[Lutz Jaenicke]
- +) 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]
-
*) Handle special case when X509_NAME is empty in X509 printing routines.
[Steve Henson]
positive and less than q.
[Bodo Moeller]
- +) 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]
-
*) 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.
ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
[Bodo Moeller]
- +) 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 OAEP check.
[Ulf Möller, Bodo Möller]
(previously it was 1024).
[Bodo Moeller]
- +) 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]
-
*) 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]
- +) 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]
-
*) 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.
For Windows, we use "C:"; on other platforms, we still require
environment variables.
- +) 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]
-
*) 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]
-
- +) 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]
-
+ *) 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]
- -) OpenSSL 0.9.6a released [5 Apr 2001]
+ 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>]
CygWin.
[Richard Levitte]
- +) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
- could not support the combine flag in choice fields.
- [Steve Henson]
-
- -) Fix for asn1_GetSequence() for indefinite length constructed data.
+ *) 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]
*) Disabled incorrect Alpha assembler code.
[Richard Levitte]
- -) Fix PKCS#7 decode routines so they correctly update the length
+ *) 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.]
it when found.
[Tim Rice <tim@multitalents.net> via Richard Levitte]
- +) Add a 'copy_extensions' option to the 'ca' utility. This copies
- extensions from a certificate request to the certificate.
- [Steve Henson]
-
- +) Allow multiple 'certopt' and 'nameopt' options to be separated
- by commas. Add 'namopt' and 'certopt' options to the 'ca' config
- file: this allows the display of the certificate about to be
- signed to be customised, to allow certain fields to be included
- or excluded and extension details. The old system didn't display
- multicharacter strings properly, omitted fields not in the policy
- 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].
-
- EC_POINT_mul is a simple wrapper function for the typical case
- that the point list has just one item (besides the optional
- generator).
- [Bodo Moeller]
-
- +) First EC_METHODs for curves over GF(p):
-
- EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
- operations and provides various method functions that can also
- operate with faster implementations of modular arithmetic.
-
- EC_GFp_mont_method() reuses most functions that are part of
- EC_GFp_simple_method, but uses Montgomery arithmetic.
-
- [Bodo Moeller; point addition and point doubling
- implementation directly derived from source code provided by
- Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
-
- +) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
- crypto/ec/ec_lib.c):
-
- Curves are EC_GROUP objects (with an optional group generator)
- based on EC_METHODs that are built into the library.
-
- Points are EC_POINT objects based on EC_GROUP objects.
-
- Most of the framework would be able to handle curves over arbitrary
- finite fields, but as there are no obvious types for fields other
- than GF(p), some functions are limited to that for now.
- [Bodo Moeller]
-
- +) Add the -HTTP option to s_server. It is similar to -WWW, but requires
- that the file contains a complete HTTP response.
- [Richard Levitte]
-
- +) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
- change the def and num file printf format specifier from "%-40sXXX"
- to "%-39s XXX". The latter will always guarantee a space after the
- field while the former will cause them to run together if the field
- is 40 of more characters long.
- [Steve Henson]
-
- +) Constify the cipher and digest 'method' functions and structures
- and modify related functions to take constant EVP_MD and EVP_CIPHER
- 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]
-
- +) Modify EVP_Digest*() routines so they now return values. Although the
- internal software routines can never fail additional hardware versions
- might.
- [Steve Henson]
-
- +) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
-
- Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
- (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
-
- ASN1 error codes
- ERR_R_NESTED_ASN1_ERROR
- ...
- ERR_R_MISSING_ASN1_EOS
- were 4 .. 9, conflicting with
- ERR_LIB_RSA (= ERR_R_RSA_LIB)
- ...
- ERR_LIB_PEM (= ERR_R_PEM_LIB).
- They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
-
- Add new error code 'ERR_R_INTERNAL_ERROR'.
- [Bodo Moeller]
-
- +) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
- suffices.
- [Bodo Moeller]
-
- +) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
- sets the subject name for a new request or supersedes the
- subject name in a given request. Formats that can be parsed are
- 'CN=Some Name, OU=myOU, C=IT'
- and
- 'CN=Some Name/OU=myOU/C=IT'.
-
- 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,
- one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
- "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
- is normally done by Configure or something similar).
-
- To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
- in the source file (foo.c) like this:
-
- OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
- OPENSSL_IMPLEMENT_GLOBAL(double,bar);
-
- To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
- and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
-
- OPENSSL_DECLARE_GLOBAL(int,foo);
- #define foo OPENSSL_GLOBAL_REF(foo)
- OPENSSL_DECLARE_GLOBAL(double,bar);
- #define bar OPENSSL_GLOBAL_REF(bar)
-
- The #defines are very important, and therefore so is including the
- 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 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
- go into the Windows .def files as well as a number of fixes and code
- cleanup (among others, algorithm keywords are now sorted
- 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
- problems with BN_mod() and BN_nnmod().
- [Steve Henson]
-
- +) Function OCSP_request_verify(). This checks the signature on an
- OCSP request and verifies the signer certificate. The signer
- certificate is just checked for a generic purpose and OCSP request
- trust settings.
- [Steve Henson]
-
- +) Add OCSP_check_validity() function to check the validity of OCSP
- 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 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
- ocsp utility.
- [Steve Henson]
-
- +) If signature or public key algorithm is unrecognized print out its
- OID rather that just UNKNOWN.
- [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.
[Steve Henson]
- +) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
- OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
- ID to be generated from the issuer certificate alone which can then be
- passed to OCSP_id_issuer_cmp().
- [Steve Henson]
-
- +) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
- ASN1 modules to export functions returning ASN1_ITEM pointers
- instead of the ASN1_ITEM structures themselves. This adds several
- new macros which allow the underlying ASN1 function/structure to
- be accessed transparently. As a result code should not use ASN1_ITEM
- references directly (such as &X509_it) but instead use the relevant
- macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
- use of the new ASN1 code on platforms where exporting structures
- is problematical (for example in shared libraries) but exporting
- functions returning pointers to structures is not.
- [Steve Henson]
-
- +) Add support for overriding the generation of SSL/TLS session IDs.
- These callbacks can be registered either in an SSL_CTX or per SSL.
- The purpose of this is to allow applications to control, if they wish,
- the arbitrary values chosen for use as session IDs, particularly as it
- can be useful for session caching in multiple-server environments. A
- command-line switch for testing this (and any client code that wishes
- to use such a feature) has been added to "s_server".
- [Geoff Thorpe, Lutz Jaenicke]
-
- +) 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
- sure e_os2.h will cover all platform-specific cases together with
- opensslconf.h.
- Additionally, it is now possible to define configuration/platform-
- specific names (called "system identities"). In the C code, these
- are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
- macro with the name beginning with "OPENSSL_SYS_", which is determined
- from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
- what is available.
- [Richard Levitte]
-
- +) New option -set_serial to 'req' and 'x509' this allows the serial
- number to use to be specified on the command line. Previously self
- signed certificates were hard coded with serial number 0 and the
- CA options of 'x509' had to use a serial number in a file which was
- auto incremented.
- [Steve Henson]
-
*) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
due to incorrect handling of multi-threading:
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
- not padded in any way and so the total length much be a multiple
- of the block size, otherwise an error occurs.
- [Steve Henson]
-
- +) 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.
- [Steve Henson]
-
- +) New nonce behavior. The return value of OCSP_check_nonce() now
- reflects the various checks performed. Applications can decide
- whether to tolerate certain situations such as an absent nonce
- in a response when one was present in a request: the ocsp application
- just prints out a warning. New function OCSP_add1_basic_nonce()
- this is to allow responders to include a nonce in a response even if
- the request is nonce-less.
- [Steve Henson]
-
- *) 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]
-
- +) 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".
- [Bodo Moeller]
-
- +) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
- set string type: to handle setting ASN1_TIME structures. Fix ca
- utility to correctly initialize revocation date of CRLs.
- [Steve Henson]
-
- +) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
- 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
- to aes and add a new 'exist' option to print out symbols that don't
- appear to exist.
+ *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
+ was empty.
[Steve Henson]
+ [This change does not apply to 0.9.7.]
- +) Additional options to ocsp utility to allow flags to be set and
- additional certificates supplied.
+ *) 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 the option -VAfile to 'openssl ocsp', so the user can give the
- OCSP client a number of certificate to only verify the response
- 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
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
*) 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]
-
- +) Functions for OCSP responders. OCSP_request_onereq_count(),
- OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
- 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
- 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()
- (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
- (converts ASN1_TIME to GeneralizedTime).
- [Steve Henson]
-
- +) 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 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]
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
- response then it is assumed to be valid and is not verified.
- [Steve Henson]
-
- -) Make the CRL encoding routines work with empty SEQUENCE OF. The
+ *) 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]
DH ciphersuites.
[Steve Henson]
- +) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
- to data. This was previously part of the PKCS7 ASN1 code. This
- was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
- [Steve Henson, reported by Kenneth R. Robinette
- <support@securenetterm.com>]
-
- +) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
- routines: without these tracing memory leaks is very painful.
- 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
*) ./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
- is initialised to -1 but X509_time_adj() now has to check the value
- and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
- V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
- [Steve Henson, reported by Kenneth R. Robinette
- <support@securenetterm.com>]
-
- +) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
- result in a zero length in the ASN1_INTEGER structure which was
- not consistent with the structure when d2i_ASN1_INTEGER() was used
- and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
- to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
- 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
- OCSP_crl_reason_str() and are no longer static. New options
- to verify nonce values and to disable verification. OCSP response
- printout format cleaned up.
- [Steve Henson]
-
- +) Add additional OCSP certificate checks. These are those specified
- in RFC2560. This consists of two separate checks: the CA of the
- certificate being checked must either be the OCSP signer certificate
- or the issuer of the OCSP signer certificate. In the latter case the
- OCSP signer certificate must contain the OCSP signing extended key
- usage. This check is performed by attempting to match the OCSP
- signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
- in the OCSP_CERTID structures of the response.
- [Steve Henson]
-
- +) Initial OCSP certificate verification added to OCSP_basic_verify()
- and related routines. This uses the standard OpenSSL certificate
- verify routines to perform initial checks (just CA validity) and
- to obtain the certificate chain. Then additional checks will be
- performed on the chain. Currently the root CA is checked to see
- if it is explicitly trusted for OCSP signing. This is used to set
- a root CA as a global signing root: that is any certificate that
- chains to that CA is an acceptable OCSP signing certificate.
- [Steve Henson]
-
- +) New '-extfile ...' option to 'openssl ca' for reading X.509v3
- extensions from a separate configuration file.
- As when reading extensions from the main configuration file,
- the '-extensions ...' option may be used for specifying the
- 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:
- still needs to check the OCSP response validity.
- [Steve Henson]
-
- +) New subcommands for 'openssl ca':
- 'openssl ca -status <serial>' prints the status of the cert with
- the given serial number (according to the index file).
- 'openssl ca -updatedb' updates the expiry status of certificates
- in the index file.
- [Massimiliano Pala <madwolf@comune.modena.it>]
-
- +) New '-newreq-nodes' command option to CA.pl. This is like
- '-newreq', but calls 'openssl req' with the '-nodes' option
- so that the resulting key is not encrypted.
- [Damien Miller <djm@mindrot.org>]
-
- +) New configuration for the GNU Hurd.
- [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
-
- +) Initial code to implement OCSP basic response verify. This
- is currently incomplete. Currently just finds the signer's
- certificate and verifies the signature on the response.
- [Steve Henson]
-
- +) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
- value of OPENSSLDIR. This is available via the new '-d' option
- 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
- well as the original possibility to just replace malloc(),
- realloc() and free() by functions that do not know about these
- additional arguments. To register and find out the current
- settings for extended allocation functions, the following
- functions are provided:
-
- CRYPTO_set_mem_ex_functions
- CRYPTO_set_locked_mem_ex_functions
- CRYPTO_get_mem_ex_functions
- CRYPTO_get_locked_mem_ex_functions
-
- These work the same way as CRYPTO_set_mem_functions and friends.
- CRYPTO_get_[locked_]mem_functions now writes 0 where such an
- extended allocation function is enabled.
- Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
- 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
- the callback types and macros at the head of lhash.h for details
- (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
- [Geoff Thorpe]
-
- +) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
- 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
- random devices, as specified by DEVRANDOM, until a sufficient amount
- of data has been collected. We spend at most 10 ms on each file
- (select timeout) and read in non-blocking mode. DEVRANDOM now
- defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
- (previously it was just the string "/dev/urandom"), so on typical
- platforms the 10 ms delay will never occur.
- Also separate out the Unix variant to its own file, rand_unix.c.
- For VMS, there's a currently-empty rand_vms.c.
- [Richard Levitte]
-
- +) Move OCSP client related routines to ocsp_cl.c. These
- provide utility functions which an application needing
- to issue a request to an OCSP responder and analyse the
- response will typically need: as opposed to those which an
- OCSP responder itself would need which will be added later.
-
- OCSP_request_sign() signs an OCSP request with an API similar
- to PKCS7_sign(). OCSP_response_status() returns status of OCSP
- response. OCSP_response_get1_basic() extracts basic response
- from response. OCSP_resp_find_status(): finds and extracts status
- information from an OCSP_CERTID structure (which will be created
- when the request structure is built). These are built from lower
- level functions which work on OCSP_SINGLERESP structures but
- wont normally be used unless the application wishes to examine
- extensions in the OCSP response for example.
-
- Replace nonce routines with a pair of functions.
- OCSP_request_add1_nonce() adds a nonce value and optionally
- generates a random value. OCSP_check_nonce() checks the
- validity of the nonce in an OCSP response.
- [Steve Henson]
-
- +) Change function OCSP_request_add() to OCSP_request_add0_id().
- This doesn't copy the supplied OCSP_CERTID and avoids the
- need to free up the newly created id. Change return type
- to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
- This can then be used to add extensions to the request.
- Deleted OCSP_request_new(), since most of its functionality
- is now in OCSP_REQUEST_new() (and the case insensitive name
- clash) apart from the ability to set the request name which
- will be added elsewhere.
- [Steve Henson]
-
- +) Update OCSP API. Remove obsolete extensions argument from
- various functions. Extensions are now handled using the new
- OCSP extension code. New simple OCSP HTTP function which
- can be used to send requests and parse the response.
- [Steve Henson]
-
- +) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
- ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
- uses the special reorder version of SET OF to sort the attributes
- and reorder them to match the encoded order. This resolves a long
- standing problem: a verify on a PKCS7 structure just after signing
- it used to fail because the attribute order did not match the
- encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
- it uses the received order. This is necessary to tolerate some broken
- software that does not order SET OF. This is handled by encoding
- as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
- to produce the required SET OF.
- [Steve Henson]
-
- +) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
- OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
- files to get correct declarations of the ASN.1 item variables.
- [Richard Levitte]
-
- +) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
- PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
- asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
- NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
- New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
- ASN1_ITEM and no wrapper functions.
- [Steve Henson]
-
- +) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
- replace the old function pointer based I/O routines. Change most of
- the *_d2i_bio() and *_d2i_fp() functions to use these.
- [Steve Henson]
-
- +) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
- lines, recognice more "algorithms" that can be deselected, and make
- it complain about algorithm deselection that isn't recognised.
- [Richard Levitte]
-
- +) New ASN1 functions to handle dup, sign, verify, digest, pack and
- unpack operations in terms of ASN1_ITEM. Modify existing wrappers
- to use new functions. Add NO_ASN1_OLD which can be set to remove
- some old style ASN1 functions: this can be used to determine if old
- code will still work when these eventually go away.
- [Steve Henson]
-
- +) New extension functions for OCSP structures, these follow the
- same conventions as certificates and CRLs.
- [Steve Henson]
-
- +) New function X509V3_add1_i2d(). This automatically encodes and
- adds an extension. Its behaviour can be customised with various
- flags to append, replace or delete. Various wrappers added for
- certifcates and CRLs.
- [Steve Henson]
+ by adding an extra length parameter to asc2uni().
+ [Steve Henson, reported by <oddissey@samsung.co.kr>]
- +) Fix to avoid calling the underlying ASN1 print routine when
- an extension cannot be parsed. Correct a typo in the
- OCSP_SERVICELOC extension. Tidy up print OCSP format.
+ *) 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).
[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
- storing which locks are currently held by the program.
- [Bodo Moeller]
-
- +) Use a lock around the call to CRYPTO_get_ex_new_index() in
- SSL_get_ex_data_X509_STORE_idx(), which is used in
- ssl_verify_cert_chain() and thus can be called at any time
- during TLS/SSL handshakes so that thread-safety is essential.
- Unfortunately, the ex_data design is not at all suited
- for multi-threaded use, so it probably should be abolished.
- [Bodo Moeller]
-
- +) Added Broadcom "ubsec" ENGINE to OpenSSL.
- [Broadcom, tweaked and integrated by Geoff Thorpe]
-
- +) Move common extension printing code to new function
- X509V3_print_extensions(). Reorganise OCSP print routines and
- implement some needed OCSP ASN1 functions. Add OCSP extensions.
- [Steve Henson]
-
- +) New function X509_signature_print() to remove duplication in some
- print routines.
- [Steve Henson]
-
- +) Add a special meaning when SET OF and SEQUENCE OF flags are both
- set (this was treated exactly the same as SET OF previously). This
- is used to reorder the STACK representing the structure to match the
- encoding. This will be used to get round a problem where a PKCS7
- structure which was signed could not be verified because the STACK
- order did not reflect the encoded order.
- [Steve Henson]
-
- +) Reimplement the OCSP ASN1 module using the new code.
- [Steve Henson]
-
- +) Update the X509V3 code to permit the use of an ASN1_ITEM structure
- for its ASN1 operations. The old style function pointers still exist
- for now but they will eventually go away.
- [Steve Henson]
-
- +) Merge in replacement ASN1 code from the ASN1 branch. This almost
- completely replaces the old ASN1 functionality with a table driven
- encoder and decoder which interprets an ASN1_ITEM structure describing
- the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
- largely maintained. Almost all of the old asn1_mac.h macro based ASN1
- has also been converted to the new form.
- [Steve Henson]
-
- +) Change BN_mod_exp_recp so that negative moduli are tolerated
- (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
- so that BN_mod_exp_mont and BN_mod_exp_mont_word work
- for negative moduli.
- [Bodo Moeller]
-
- +) Fix BN_uadd and BN_usub: Always return non-negative results instead
- of not touching the result's sign bit.
- [Bodo Moeller]
-
- +) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
- set.
- [Bodo Moeller]
-
- +) Changed the LHASH code to use prototypes for callbacks, and created
- macros to declare and implement thin (optionally static) functions
- that provide type-safety and avoid function pointer casting for the
- 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]
-
- +) Have the zlib compression code load ZLIB.DLL dynamically under
- Windows.
- [Richard Levitte]
-
- +) New function BN_mod_sqrt for computing square roots modulo a prime
- (using the probabilistic Tonelli-Shanks algorithm unless
- p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
- 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]
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.
does the actual work for ssl3_read_internal.
[Bodo Moeller]
- +) New function BN_kronecker.
- [Bodo Moeller]
-
- +) Fix BN_gcd so that it works on negative inputs; the result is
- positive unless both parameters are zero.
- Previously something reasonably close to an infinite loop was
- possible because numbers could be growing instead of shrinking
- in the implementation of Euclid's algorithm.
- [Bodo Moeller]
-
- +) Fix BN_is_word() and BN_is_one() macros to take into account the
- sign of the number in question.
-
- Fix BN_is_word(a,w) to work correctly for w == 0.
-
- The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
- because its test if the absolute value of 'a' equals 'w'.
- Note that BN_abs_is_word does *not* handle w == 0 reliably;
- it exists mostly for use in the implementations of BN_is_zero(),
- 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]
-
- +) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
- the exponentiation functions are more likely to produce reasonable
- results on negative inputs.
- [Bodo Moeller]
-
- +) Change BN_mod_mul so that the result is always non-negative.
- Previously, it could be negative if one of the factors was negative;
- I don't think anyone really wanted that behaviour.
- [Bodo Moeller]
-
- +) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
- (except for exponentiation, which stays in crypto/bn/bn_exp.c,
- and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
- and add new functions:
-
- BN_nnmod
- BN_mod_sqr
- BN_mod_add
- BN_mod_add_quick
- BN_mod_sub
- BN_mod_sub_quick
- BN_mod_lshift1
- BN_mod_lshift1_quick
- BN_mod_lshift
- BN_mod_lshift_quick
-
- These functions always generate non-negative results.
-
- BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
- such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
-
- BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
- BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
- be reduced modulo m.
- [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
-
- +) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
- was actually never needed) and in BN_mul(). The removal in BN_mul()
- required a small change in bn_mul_part_recursive() and the addition
- of the functions bn_cmp_part_words(), bn_sub_part_words() and
- bn_add_part_words(), which do the same thing as bn_cmp_words(),
- bn_sub_words() and bn_add_words() except they take arrays with
- differing sizes.
- [Richard Levitte]
-
- +) In 'openssl passwd', verify passwords read from the terminal
- unless the '-salt' option is used (which usually means that
- verification would just waste user's time since the resulting
- hash is going to be compared with some given password hash)
- or the new '-noverify' option is used.
-
- This is an incompatible change, but it does not affect
- non-interactive use of 'openssl passwd' (passwords on the command
- line, '-stdin' option, '-in ...' option) and thus should not
- cause any problems.
- [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 ENGINE code as a result of BIGNUM constification.
- Also constify the RSA code and most things related to it. In a
- few places, most notable in the depth of the ASN.1 code, ugly
- casts back to non-const were required (to be solved at a later
- time)
- [Richard Levitte]
-
- +) Make it so the openssl application has all engines loaded by default.
- [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()
- ENGINE_load_chil()
- ENGINE_load_atalla()
- ENGINE_load_nuron()
- ENGINE_load_builtin_engines()
-
- That way, an application can itself choose if external engines that
- are built-in in OpenSSL shall ever be used or not. The benefit is
- that applications won't have to be linked with libdl or other dso
- libraries unless it's really needed.
-
- Changed 'openssl engine' to load all engines on demand.
- Changed the engine header files to avoid the duplication of some
- declarations (they differed!).
- [Richard Levitte]
-
- +) 'openssl engine' can now list capabilities.
- [Richard Levitte]
-
- +) Better error reporting in 'openssl engine'.
- [Richard Levitte]
-
- +) Never call load_dh_param(NULL) in s_server.
- [Bodo Moeller]
-
- +) Add engine application. It can currently list engines by name and
- identity, and test if they are actually available.
- [Richard Levitte]
-
- +) 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>]
-
- +) Give the OpenSSL applications more possibilities to make use of
- keys (public as well as private) handled by engines.
- [Richard Levitte]
-
- +) Add OCSP code that comes from CertCo.
- [Richard Levitte]
-
- +) Add VMS support for the Rijndael code.
- [Richard Levitte]
-
- +) Added untested support for Nuron crypto accelerator.
- [Ben Laurie]
-
- +) Add support for external cryptographic devices. This code was
- previously distributed separately as the "engine" branch.
- [Geoff Thorpe, Richard Levitte]
-
- +) Rework the filename-translation in the DSO code. It is now possible to
- have far greater control over how a "name" is turned into a filename
- depending on the operating environment and any oddities about the
- different shared library filenames on each system.
- [Geoff Thorpe]
-
- +) Support threads on FreeBSD-elf in Configure.
- [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
- of two sections.
- [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
-
- +) NCONF changes.
- NCONF_get_number() has no error checking at all. As a replacement,
- NCONF_get_number_e() is defined (_e for "error checking") and is
- promoted strongly. The old NCONF_get_number is kept around for
- binary backward compatibility.
- Make it possible for methods to load from something other than a BIO,
- by providing a function pointer that is given a name instead of a BIO.
- For example, this could be used to load configuration data from an
- LDAP server.
- [Richard Levitte]
-
*) Fix typo in get_cert_by_subject() in by_dir.c
[Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
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
- implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
- this case.
- [Steve Henson]
-
- +) Added the beginnings of Rijndael support.
- [Ben Laurie]
-
- +) Fix for bug in DirectoryString mask setting. Add support for
- X509_NAME_print_ex() in 'req' and X509_print_ex() function
- to allow certificate printing to more controllable, additional
- 'certopt' option to 'x509' to allow new printing options to be
- set.
- [Steve Henson]
-
- +) Clean old EAY MD5 hack from e_os.h.
- [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
projects / openssl.git / blobdiff