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@gnupg.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mpi/ec.c b/mpi/ec.c
index c7367069..5d2f5c92 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);