[git] GCRYPT - branch, master, updated. libgcrypt-1.5.0-115-g71b25a5

[by Werner Koch]

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- Log -----------------------------------------------------------------
commit 71b25a5562f68aad81eae52cc1bab9ca7731a7e9
Author: Werner Koch <wk at gnupg.org>
Date:   Mon Apr 15 11:11:58 2013 +0200

    Fix addition of EC points.
    
    * mpi/ec.c (_gcry_mpi_ec_add_points): Fix case of P1 given in affine
    coordinates.
    --
    
    This was a plain copy and paste error, which was found due to explicit
    use of affine coordinates by GNUnet's new pseudonyms code.
    
    Signed-off-by: Werner Koch <wk at gnupg.org>

diff --git a/mpi/ec.c b/mpi/ec.c
index c736706..5d2f5c9 100644
--- a/mpi/ec.c
+++ b/mpi/ec.c
@@ -829,7 +829,7 @@ _gcry_mpi_ec_add_points (mpi_point_t result,
           ec_mulm (l1, l1, x1, ctx);
         }
       if (z1_is_one)
-        mpi_set (l2, x1);
+        mpi_set (l2, x2);
       else
         {
           ec_powm (l2, z1, mpi_const (MPI_C_TWO), ctx);

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

Summary of changes:
 mpi/ec.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


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