X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=8c67dab6996740eab325e48f315932d9e81da620;hp=e5f6cb6c9d1c0321c5edfaae912982b843ac4d05;hb=cba024dc685d13dbcbd0577bed028ee6b295b56a;hpb=fdb8113daedbcc01e3effc5b0a1ed97558d700a5

diff --git a/CHANGES b/CHANGES
index e5f6cb6c9d..8c67dab699 100644
--- a/CHANGES
+++ b/CHANGES
@@ -9,6 +9,167 @@
 
  Changes between 1.1.0h and 1.1.1 [xx XXX xxxx]
 
+  *) s390x assembly pack: add (improved) hardware-support for the following
+     cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb,
+     aes-cfb/cfb8, aes-ecb.
+     [Patrick Steuer]
+
+  *) Make EVP_PKEY_asn1_new() a bit stricter about its input.  A NULL pem_str
+     parameter is no longer accepted, as it leads to a corrupt table.  NULL
+     pem_str is reserved for alias entries only.
+     [Richard Levitte]
+
+  *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
+     step for prime curves. The new implementation is based on formulae from
+     differential addition-and-doubling in homogeneous projective coordinates
+     from Izu-Takagi "A fast parallel elliptic curve multiplication resistant
+     against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves
+     and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified
+     to work in projective coordinates.
+     [Billy Bob Brumley, Nicola Tuveri]
+
+  *) Change generating and checking of primes so that the error rate of not
+     being prime depends on the intended use based on the size of the input.
+     For larger primes this will result in more rounds of Miller-Rabin.
+     The maximal error rate for primes with more than 1080 bits is lowered
+     to 2^-128.
+     [Kurt Roeckx, Annie Yousar]
+
+  *) Increase the number of Miller-Rabin rounds for DSA key generating to 64.
+     [Kurt Roeckx]
+
+  *) The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when
+     moving between systems, and to avoid confusion when a Windows build is
+     done with mingw vs with MSVC.  For POSIX installs, there's still a
+     symlink or copy named 'tsget' to avoid that confusion as well.
+     [Richard Levitte]
+
+  *) Revert blinding in ECDSA sign and instead make problematic addition
+     length-invariant. Switch even to fixed-length Montgomery multiplication.
+     [Andy Polyakov]
+
+  *) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
+     step for binary curves. The new implementation is based on formulae from
+     differential addition-and-doubling in mixed Lopez-Dahab projective
+     coordinates, modified to independently blind the operands.
+     [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri]
+
+  *) Add a scaffold to optionally enhance the Montgomery ladder implementation
+     for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing
+     EC_METHODs to implement their own specialized "ladder step", to take
+     advantage of more favorable coordinate systems or more efficient
+     differential addition-and-doubling algorithms.
+     [Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri]
+
+  *) Modified the random device based seed sources to keep the relevant
+     file descriptors open rather than reopening them on each access.
+     This allows such sources to operate in a chroot() jail without
+     the associated device nodes being available. This behaviour can be
+     controlled using RAND_keep_random_devices_open().
+     [Paul Dale]
+
+  *) Numerous side-channel attack mitigations have been applied. This may have
+     performance impacts for some algorithms for the benefit of improved
+     security. Specific changes are noted in this change log by their respective
+     authors.
+     [Matt Caswell]
+
+  *) AIX shared library support overhaul. Switch to AIX "natural" way of
+     handling shared libraries, which means collecting shared objects of
+     different versions and bitnesses in one common archive. This allows to
+     mitigate conflict between 1.0 and 1.1 side-by-side installations. It
+     doesn't affect the way 3rd party applications are linked, only how
+     multi-version installation is managed.
+     [Andy Polyakov]
+
+  *) Make ec_group_do_inverse_ord() more robust and available to other
+     EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA
+     mitigations are applied to the fallback BN_mod_inverse().
+     When using this function rather than BN_mod_inverse() directly, new
+     EC cryptosystem implementations are then safer-by-default.
+     [Billy Bob Brumley]
+
+  *) Add coordinate blinding for EC_POINT and implement projective
+     coordinate blinding for generic prime curves as a countermeasure to
+     chosen point SCA attacks.
+     [Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley]
+
+  *) Add blinding to ECDSA and DSA signatures to protect against side channel
+     attacks discovered by Keegan Ryan (NCC Group).
+     [Matt Caswell]
+
+  *) Enforce checking in the pkeyutl command line app to ensure that the input
+     length does not exceed the maximum supported digest length when performing
+     a sign, verify or verifyrecover operation.
+     [Matt Caswell]
+
+  *) SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking
+     I/O in combination with something like select() or poll() will hang. This
+     can be turned off again using SSL_CTX_clear_mode().
+     Many applications do not properly handle non-application data records, and
+     TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works
+     around the problems in those applications, but can also break some.
+     It's recommended to read the manpages about SSL_read(), SSL_write(),
+     SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and
+     SSL_CTX_set_read_ahead() again.
+     [Kurt Roeckx]
+
+  *) When unlocking a pass phrase protected PEM file or PKCS#8 container, we
+     now allow empty (zero character) pass phrases.
+     [Richard Levitte]
+
+  *) Apply blinding to binary field modular inversion and remove patent
+     pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation.
+     [Billy Bob Brumley]
+
+  *) Deprecate ec2_mult.c and unify scalar multiplication code paths for
+     binary and prime elliptic curves.
+     [Billy Bob Brumley]
+
+  *) Remove ECDSA nonce padding: EC_POINT_mul is now responsible for
+     constant time fixed point multiplication.
+     [Billy Bob Brumley]
+
+  *) Revise elliptic curve scalar multiplication with timing attack
+     defenses: ec_wNAF_mul redirects to a constant time implementation
+     when computing fixed point and variable point multiplication (which
+     in OpenSSL are mostly used with secret scalars in keygen, sign,
+     ECDH derive operations).
+     [Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García,
+      Sohaib ul Hassan]
+
+  *) Updated CONTRIBUTING
+     [Rich Salz]
+
+  *) Updated DRBG / RAND to request nonce and additional low entropy
+     randomness from the system.
+     [Matthias St. Pierre]
+
+  *) Updated 'openssl rehash' to use OpenSSL consistent default.
+     [Richard Levitte]
+
+  *) Moved the load of the ssl_conf module to libcrypto, which helps
+     loading engines that libssl uses before libssl is initialised.
+     [Matt Caswell]
+
+  *) Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA
+     [Matt Caswell]
+
+  *) Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases.
+     [Ingo Schwarze, Rich Salz]
+
+  *) Added output of accepting IP address and port for 'openssl s_server'
+     [Richard Levitte]
+
+  *) Added a new API for TLSv1.3 ciphersuites:
+        SSL_CTX_set_ciphersuites()
+        SSL_set_ciphersuites()
+     [Matt Caswell]
+
+  *) Memory allocation failures consistenly add an error to the error
+     stack.
+     [Rich Salz]
+
   *) Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values
      in libcrypto when run as setuid/setgid.
      [Bernd Edlinger]
@@ -33,7 +194,7 @@
      below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3.
      In order to avoid issues where legacy TLSv1.2 ciphersuite configuration
      would otherwise inadvertently disable all TLSv1.3 ciphersuites the
-     configuraton has been separated out. See the ciphers man page or the
+     configuration has been separated out. See the ciphers man page or the
      SSL_CTX_set_ciphersuites() man page for more information.
      [Matt Caswell]
 
@@ -87,12 +248,12 @@
 
      Some of its new features are:
       o Support for multiple DRBG instances with seed chaining.
-      o Add a public DRBG instance for the default RAND method.
-      o Add a dedicated DRBG instance for generating long term private keys.
-      o Make the DRBG instances fork-safe.
+      o The default RAND method makes use of a DRBG.
+      o There is a public and private DRBG instance.
+      o The DRBG instances are fork-safe.
       o Keep all global DRBG instances on the secure heap if it is enabled.
-      o Add a DRBG instance to every SSL instance for lock free operation
-        and to increase unpredictability.
+      o The public and private DRBG instance are per thread for lock free
+        operation
      [Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre]
 
   *) Changed Configure so it only says what it does and doesn't dump