OpenSSL CHANGES
_______________
- Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
+ Changes between 1.0.2e and 1.1.0 [xx XXX xxxx]
+
+ *) The return value for SSL_CIPHER_description() for error conditions
+ has changed.
+ [Rich Salz]
+
+ *) Support for RFC6698/RFC7671 DANE TLSA peer authentication.
+
+ Obtaining and performing DNSSEC validation of TLSA records is
+ the application's responsibility. The application provides
+ the TLSA records of its choice to OpenSSL, and these are then
+ used to authenticate the peer.
+
+ The TLSA records need not even come from DNS. They can, for
+ example, be used to implement local end-entity certificate or
+ trust-anchor "pinning", where the "pin" data takes the form
+ of TLSA records, which can augment or replace verification
+ based on the usual WebPKI public certification authorities.
+ [Viktor Dukhovni]
+
+ *) Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL
+ continues to support deprecated interfaces in default builds.
+ However, applications are strongly advised to compile their
+ source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides
+ the declarations of all interfaces deprecated in 0.9.8, 1.0.0
+ or the 1.1.0 releases.
+
+ In environments in which all applications have been ported to
+ not use any deprecated interfaces OpenSSL's Configure script
+ should be used with the --api=1.1.0 option to entirely remove
+ support for the deprecated features from the library and
+ unconditionally disable them in the installed headers.
+ Essentially the same effect can be achieved with the "no-deprecated"
+ argument to Configure, except that this will always restrict
+ the build to just the latest API, rather than a fixed API
+ version.
+
+ As applications are ported to future revisions of the API,
+ they should update their compile-time OPENSSL_API_COMPAT define
+ accordingly, but in most cases should be able to continue to
+ compile with later releases.
+
+ The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are
+ 0x10000000L and 0x00908000L, respectively. However those
+ versions did not support the OPENSSL_API_COMPAT feature, and
+ so applications are not typically tested for explicit support
+ of just the undeprecated features of either release.
+ [Viktor Dukhovni]
+
+ *) Add support for setting the minimum and maximum supported protocol.
+ It can bet set via the SSL_set_min_proto_version() and
+ SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and
+ MaxProtcol. It's recommended to use the new APIs to disable
+ protocols instead of disabling individual protocols using
+ SSL_set_options() or SSL_CONF's Protocol. This change also
+ removes support for disabling TLS 1.2 in the OpenSSL TLS
+ client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT.
+ [Kurt Roeckx]
+
+ *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl.
+ [Andy Polyakov]
+
+ *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD
+ and integrates ECDSA and ECDH functionality into EC. Implementations can
+ now redirect key generation and no longer need to convert to or from
+ ECDSA_SIG format.
+
+ Note: the ecdsa.h and ecdh.h headers are now no longer needed and just
+ include the ec.h header file instead.
+ [Steve Henson]
+
+ *) Remove support for all 40 and 56 bit ciphers. This includes all the export
+ ciphers who are no longer supported and drops support the ephemeral RSA key
+ exchange. The LOW ciphers currently doesn't have any ciphers in it.
+ [Kurt Roeckx]
+
+ *) Make EVP_MD_CTX, EVP_MD and HMAC_CTX opaque. For HMAC_CTX, the
+ following constructors and destructors were added:
+
+ HMAC_CTX *HMAC_CTX_new(void);
+ void HMAC_CTX_free(HMAC_CTX *ctx);
+
+ For EVP_MD, a complete API to create, fill and destroy such
+ methods has been added. See EVP_MD_meth_new(3) for
+ documentation.
+
+ Additional changes:
+ 1) HMAC_CTX_cleanup() and EVP_MD_CTX_cleanup() were removed,
+ HMAC_CTX_init() and EVP_MD_CTX_init() should be called instead
+ to reinitialise and already created structure. Also,
+ HMAC_CTX_init() and EVP_MD_CTX_init() now return 0 for failure
+ and 1 for success (they previously had the return type void).
+ 2) For consistency with the majority of our object creators and
+ destructors, EVP_MD_CTX_(create|destroy) were renamed to
+ EVP_MD_CTX_(new|free). The old names are retained as macros
+ for deprecated builds.
+ [Richard Levitte]
*) Added ASYNC support. Libcrypto now includes the async sub-library to enable
cryptographic operations to be performed asynchronously as long as an
*) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is
always enabled now. If you want to disable the support you should
- exclude it using the list of supported ciphers.
+ exclude it using the list of supported ciphers. This also means that the
+ "-no_ecdhe" option has been removed from s_server.
[Kurt Roeckx]
*) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls
*) The demo files in crypto/threads were moved to demo/threads.
[Rich Salz]
- *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron and sureware.
- [Matt Caswell]
+ *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp,
+ and sureware.
+ [Matt Caswell, Rich Salz]
*) New ASN.1 embed macro.
[Richard Levitte]
+ *) Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT
+ are used; the latter aborts on memory leaks (usually checked on exit).
+ Some undocumented "set malloc, etc., hooks" functions were removed
+ and others were changed. All are now documented.
+ [Rich Salz]
+
*) In DSA_generate_parameters_ex, if the provided seed is too short,
return an error
[Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
*) Added HTTP GET support to the ocsp command.
[Rich Salz]
+ *) Changed default digest for the dgst and enc commands from MD5 to
+ sha256
+ [Rich Salz]
+
*) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
[Matt Caswell]
*) Added support for OCB mode. OpenSSL has been granted a patent license
compatible with the OpenSSL license for use of OCB. Details are available
- at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
+ at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support
for OCB can be removed by calling config with no-ocb.
[Matt Caswell]
whose return value is often ignored.
[Steve Henson]
+ Changes between 1.0.2d and 1.0.2e [3 Dec 2015]
+
+ *) BN_mod_exp may produce incorrect results on x86_64
+
+ There is a carry propagating bug in the x86_64 Montgomery squaring
+ procedure. No EC algorithms are affected. Analysis suggests that attacks
+ against RSA and DSA as a result of this defect would be very difficult to
+ perform and are not believed likely. Attacks against DH are considered just
+ feasible (although very difficult) because most of the work necessary to
+ deduce information about a private key may be performed offline. The amount
+ of resources required for such an attack would be very significant and
+ likely only accessible to a limited number of attackers. An attacker would
+ additionally need online access to an unpatched system using the target
+ private key in a scenario with persistent DH parameters and a private
+ key that is shared between multiple clients. For example this can occur by
+ default in OpenSSL DHE based SSL/TLS ciphersuites.
+
+ This issue was reported to OpenSSL by Hanno Böck.
+ (CVE-2015-3193)
+ [Andy Polyakov]
+
+ *) Certificate verify crash with missing PSS parameter
+
+ The signature verification routines will crash with a NULL pointer
+ dereference if presented with an ASN.1 signature using the RSA PSS
+ algorithm and absent mask generation function parameter. Since these
+ routines are used to verify certificate signature algorithms this can be
+ used to crash any certificate verification operation and exploited in a
+ DoS attack. Any application which performs certificate verification is
+ vulnerable including OpenSSL clients and servers which enable client
+ authentication.
+
+ This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
+ (CVE-2015-3194)
+ [Stephen Henson]
+
+ *) X509_ATTRIBUTE memory leak
+
+ When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
+ memory. This structure is used by the PKCS#7 and CMS routines so any
+ application which reads PKCS#7 or CMS data from untrusted sources is
+ affected. SSL/TLS is not affected.
+
+ This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
+ libFuzzer.
+ (CVE-2015-3195)
+ [Stephen Henson]
+
+ *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
+ This changes the decoding behaviour for some invalid messages,
+ though the change is mostly in the more lenient direction, and
+ legacy behaviour is preserved as much as possible.
+ [Emilia Käsper]
+
+ *) In DSA_generate_parameters_ex, if the provided seed is too short,
+ return an error
+ [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
+
Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
*) Alternate chains certificate forgery
projects / openssl.git / blobdiff