[SCM] GNU gnutls branch, gnutls_2_12_x, updated. gnutls_2_12_14a-3-g5557660

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http://git.savannah.gnu.org/cgit/gnutls.git/commit/?id=555766063e08fc675b88e06560f79456c4ba4f24

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      from  cd9596adfd9348b4fab60e8613586597af4c9722 (commit)

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- Log -----------------------------------------------------------------
commit 555766063e08fc675b88e06560f79456c4ba4f24
Author: Nikos Mavrogiannopoulos <[email protected]>
Date:   Thu Jan 5 14:58:16 2012 +0100

    Disable signature algorithms that are not supported for client certificate verification.

-----------------------------------------------------------------------

Summary of changes:
 NEWS                |    3 +++
 lib/ext_signature.c |    6 +++++-
 2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/NEWS b/NEWS
index 182a0cd..0638a51 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,9 @@ See the end for copying conditions.
 
 Version 2.12.15 (unreleased)
 
+** libgnutls: Disable signature algorithms that are not supported
+for client certificate verification.
+
 ** libgnutls: Optimized DH generation process (ported from 3.0.x)
 
 ** API and ABI modifications:
diff --git a/lib/ext_signature.c b/lib/ext_signature.c
index 48eb535..e8d8560 100644
--- a/lib/ext_signature.c
+++ b/lib/ext_signature.c
@@ -127,7 +127,7 @@ int
 _gnutls_sign_algorithm_parse_data (gnutls_session_t session,
                                    const opaque * data, size_t data_size)
 {
-  int sig, i;
+  int sig, i, hash;
   sig_ext_st *priv;
   extension_priv_data_t epriv;
 
@@ -150,6 +150,10 @@ _gnutls_sign_algorithm_parse_data (gnutls_session_t session,
        _gnutls_debug_log ("EXT[SIGA]: rcvd signature algo (%d.%d) %s\n", aid.hash_algorithm, 
          aid.sign_algorithm, gnutls_sign_get_name(sig));
 
+      hash = _gnutls_sign_get_hash_algorithm(sig);
+      if (hash != GNUTLS_DIG_SHA1 && hash != GNUTLS_DIG_SHA256)
+        continue;
+
       if (sig != GNUTLS_SIGN_UNKNOWN)
         {
           priv->sign_algorithms[priv->sign_algorithms_size++] = sig;


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