Changes between 1.1.1 and 3.0.0 [xx XXX xxxx]
+ *) Changed DH parameters to generate the order q subgroup instead of 2q.
+ Previously generated DH parameters are still accepted by DH_check
+ but DH_generate_key works around that by clearing bit 0 of the
+ private key for those. This avoids leaking bit 0 of the private key.
+ [Bernd Edlinger]
+
+ *) Added a new FUNCerr() macro that takes a function name.
+ The macro SYSerr() is deprecated.
+ [Rich Salz]
+
+ *) Significantly reduce secure memory usage by the randomness pools.
+ [Paul Dale]
+
+ *) {CRYPTO,OPENSSL}_mem_debug_{push,pop} are now no-ops and have been
+ deprecated.
+ [Rich Salz]
+
+ *) A new type, EVP_KEYEXCH, has been introduced to represent key exchange
+ algorithms. An implementation of a key exchange algorithm can be obtained
+ by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be
+ used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to
+ the older EVP_PKEY_derive_init() function. See the man pages for the new
+ functions for further details.
+ [Matt Caswell]
+
+ *) The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function.
+ [Matt Caswell]
+
+ *) Removed the function names from error messages and deprecated the
+ xxx_F_xxx define's.
+
+ *) Removed NextStep support and the macro OPENSSL_UNISTD
+ [Rich Salz]
+
+ *) Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL,
+ OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL.
+ Also removed "export var as function" capability; we do not export
+ variables, only functions.
+ [Rich Salz]
+
+ *) RC5_32_set_key has been changed to return an int type, with 0 indicating
+ an error and 1 indicating success. In previous versions of OpenSSL this
+ was a void type. If a key was set longer than the maximum possible this
+ would crash.
+ [Matt Caswell]
+
+ *) Support SM2 signing and verification schemes with X509 certificate.
+ [Paul Yang]
+
+ *) Use SHA256 as the default digest for TS query in the ts app.
+ [Tomas Mraz]
+
+ *) Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898.
+ This checks that the salt length is at least 128 bits, the derived key
+ length is at least 112 bits, and that the iteration count is at least 1000.
+ For backwards compatibility these checks are disabled by default in the
+ default provider, but are enabled by default in the fips provider.
+ To enable or disable these checks use the control
+ EVP_KDF_CTRL_SET_PBKDF2_PKCS5_MODE.
+ [Shane Lontis]
+
+ *) Default cipher lists/suites are now available via a function, the
+ #defines are deprecated.
+ [Todd Short]
+
+ *) Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and
+ VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries
+ for Windows Store apps easier. Also, the "no-uplink" option has been added.
+ [Kenji Mouri]
+
+ *) Join the directories crypto/x509 and crypto/x509v3
+ [Richard Levitte]
+
+ *) Change the default RSA, DSA and DH size to 2048 bit instead of 1024.
+ This changes the size when using the genpkey app when no size is given. It
+ fixes an omission in earlier changes that changed all RSA, DSA and DH
+ generation apps to use 2048 bits by default.
+ [Kurt Roeckx]
+
+ *) Added command 'openssl kdf' that uses the EVP_KDF API.
+ [Shane Lontis]
+
+ *) Added command 'openssl mac' that uses the EVP_MAC API.
+ [Shane Lontis]
+
+ *) Added OPENSSL_info() to get diverse built-in OpenSSL data, such
+ as default directories. Also added the command 'openssl info'
+ for scripting purposes.
+ [Richard Levitte]
+
+ *) The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been
+ deprecated. These undocumented functions were never integrated into the EVP
+ layer and implement the AES Infinite Garble Extension (IGE) mode and AES
+ Bi-directional IGE mode. These modes were never formally standardised and
+ usage of these functions is believed to be very small. In particular
+ AES_bi_ige_encrypt() has a known bug. It accepts 2 AES keys, but only one
+ is ever used. The security implications are believed to be minimal, but
+ this issue was never fixed for backwards compatibility reasons. New code
+ should not use these modes.
+ [Matt Caswell]
+
+ *) Add prediction resistance to the DRBG reseeding process.
+ [Paul Dale]
+
+ *) Limit the number of blocks in a data unit for AES-XTS to 2^20 as
+ mandated by IEEE Std 1619-2018.
+ [Paul Dale]
+
+ *) Added newline escaping functionality to a filename when using openssl dgst.
+ This output format is to replicate the output format found in the '*sum'
+ checksum programs. This aims to preserve backward compatibility.
+ [Matt Eaton, Richard Levitte, and Paul Dale]
+
+ *) Removed the heartbeat message in DTLS feature, as it has very
+ little usage and doesn't seem to fulfill a valuable purpose.
+ The configuration option is now deprecated.
+ [Richard Levitte]
+
+ *) Changed the output of 'openssl {digestname} < file' to display the
+ digest name in its output.
+ [Richard Levitte]
+
+ *) Added a new generic trace API which provides support for enabling
+ instrumentation through trace output. This feature is mainly intended
+ as an aid for developers and is disabled by default. To utilize it,
+ OpenSSL needs to be configured with the `enable-trace` option.
+
+ If the tracing API is enabled, the application can activate trace output
+ by registering BIOs as trace channels for a number of tracing and debugging
+ categories.
+
+ The 'openssl' application has been expanded to enable any of the types
+ available via environment variables defined by the user, and serves as
+ one possible example on how to use this functionality.
+ [Richard Levitte & Matthias St. Pierre]
+
+ *) Added build tests for C++. These are generated files that only do one
+ thing, to include one public OpenSSL head file each. This tests that
+ the public header files can be usefully included in a C++ application.
+
+ This test isn't enabled by default. It can be enabled with the option
+ 'enable-buildtest-c++'.
+ [Richard Levitte]
+
+ *) Add Single Step KDF (EVP_KDF_SS) to EVP_KDF.
+ [Shane Lontis]
+
+ *) Add KMAC to EVP_MAC.
+ [Shane Lontis]
+
+ *) Added property based algorithm implementation selection framework to
+ the core.
+ [Paul Dale]
+
+ *) Added SCA hardening for modular field inversion in EC_GROUP through
+ a new dedicated field_inv() pointer in EC_METHOD.
+ This also addresses a leakage affecting conversions from projective
+ to affine coordinates.
+ [Billy Bob Brumley, Nicola Tuveri]
+
*) Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF
implementations. This includes an EVP_PKEY to EVP_KDF bridge for
those algorithms that were already supported through the EVP_PKEY API
applications with zero-copy system calls such as sendfile and splice.
[Boris Pismenny]
+ Changes between 1.1.1a and 1.1.1b [xx XXX xxxx]
+
+ *) Change the info callback signals for the start and end of a post-handshake
+ message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START
+ and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get
+ confused by this and assume that a TLSv1.2 renegotiation has started. This
+ can break KeyUpdate handling. Instead we no longer signal the start and end
+ of a post handshake message exchange (although the messages themselves are
+ still signalled). This could break some applications that were expecting
+ the old signals. However without this KeyUpdate is not usable for many
+ applications.
+ [Matt Caswell]
+
Changes between 1.1.1 and 1.1.1a [20 Nov 2018]
*) Timing vulnerability in DSA signature generation
SSL_set_ciphersuites()
[Matt Caswell]
- *) Memory allocation failures consistenly add an error to the error
+ *) Memory allocation failures consistently add an error to the error
stack.
[Rich Salz]
reason texts, thereby removing some of the footprint that may not
be interesting if those errors aren't displayed anyway.
- NOTE: it's still possible for any application or module to have it's
+ NOTE: it's still possible for any application or module to have its
own set of error texts inserted. The routines are there, just not
used by default when no-err is given.
[Richard Levitte]
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
+ memory from its 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
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