ecdsa_ossl: address coverity nit

[openssl.git] / CHANGES

diff --git a/CHANGES b/CHANGES
index c67a9c61ec0a4f3d71fa20a801101f38febde8b1..4cdcf52f31e6c7742f42fe82b986b5c29e1ae602 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -9,6 +9,52 @@
 
  Changes between 1.1.0h and 1.1.1 [xx XXX xxxx]
 
+  *) 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]