Changes between 1.1.1 and 3.0.0 [xx XXX xxxx]
+ *) Early start up entropy quality from the DEVRANDOM seed source has been
+ improved for older Linux systems. The RAND subsystem will wait for
+ /dev/random to be producing output before seeding from /dev/urandom.
+ The seeded state is stored for future library initialisations using
+ a system global shared memory segment. The shared memory identifier
+ can be configured by defining OSSL_SHM_SEEDED to the desired value.
+ The default identifier is 114.
+ [Paul Dale]
+
+ *) Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1
+ when primes for RSA keys are computed.
+ Since we previously always generated primes == 2 (mod 3) for RSA keys,
+ the 2-prime and 3-prime RSA modules were easy to distinguish, since
+ N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting
+ 2-prime vs. 3-prime RSA keys was possible by computing N mod 3.
+ This avoids possible fingerprinting of newly generated RSA modules.
+ [Bernd Edlinger]
+
+ *) Correct the extended master secret constant on EBCDIC systems. Without this
+ fix TLS connections between an EBCDIC system and a non-EBCDIC system that
+ negotiate EMS will fail. Unfortunately this also means that TLS connections
+ between EBCDIC systems with this fix, and EBCDIC systems without this
+ fix will fail if they negotiate EMS.
+ [Matt Caswell]
+
+ *) Changed the library initialisation so that the config file is now loaded
+ by default. This was already the case for libssl. It now occurs for both
+ libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to
+ OPENSSL_init_crypto() to suppress automatic loading of a config file.
+ [Matt Caswell]
+
+ *) Introduced new error raising macros, ERR_raise() and ERR_raise_data(),
+ where the former acts as a replacement for ERR_put_error(), and the
+ latter replaces the combination ERR_put_error()+ERR_add_error_data().
+ ERR_raise_data() adds more flexibility by taking a format string and
+ an arbitrary number of arguments following it, to be processed with
+ BIO_snprintf().
+ [Richard Levitte]
+
+ *) Introduced a new function, OSSL_PROVIDER_available(), which can be used
+ to check if a named provider is loaded and available. When called, it
+ will also activate all fallback providers if such are still present.
+ [Richard Levitte]
+
+ *) Enforce a minimum DH modulus size of 512 bits.
+ [Bernd Edlinger]
+
+ *) 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]
+
+ *) 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,
'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]
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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