make RSA blinding thread-safe

[openssl.git] / CHANGES

diff --git a/CHANGES b/CHANGES
index 749bc19f7e97bfde9c2021a3a18a6521de44f5c6..77da6273c440c033692f9f885abd706e16448ce9 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -4,6 +4,32 @@
 
  Changes between 0.9.7a and 0.9.8  [xx XXX xxxx]
 
+  *) Generate muti valued AVAs using '+' notation in config files for
+     req and dirName.
+     [Steve Henson]
+
+  *) Support for nameConstraints certificate extension.
+     [Steve Henson]
+
+  *) Support for policyConstraints certificate extension.
+     [Steve Henson]
+
+  *) Support for policyMappings certificate extension.
+     [Steve Henson]
+
+  *) 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]
+
+  *) 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]
+
   *) Support for directoryName in GeneralName related extensions
      in config files.
      [Steve Henson]
@@ -208,8 +234,6 @@
      [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
 
   *) Add ECDH in new directory crypto/ecdh/.
-TODO: more general interface (return  x  coordinate, not its hash)
-TODO: bug: pad  x  with leading zeros if necessary
      [Douglas Stebila (Sun Microsystems Laboratories)]
 
   *) Let BN_rand_range() abort with an error after 100 iterations
@@ -449,6 +473,32 @@ TODO: bug: pad  x  with leading zeros if necessary
 
  Changes between 0.9.7a and 0.9.7b  [xx XXX 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]
+
+yet to be integrated into this CVS branch:
+- Geoff's ENGINE_set_default() fix
+
   *) Target "mingw" now allows native Windows code to be generated in
      the Cygwin environment as well as with the MinGW compiler.
      [Ulf Moeller]