ecc: Fix _gcry_mpi_ec_p_new to allow secp256k1.

* mpi/ec.c (_gcry_mpi_ec_p_new): Remove checking a!=0.
* tests/t-mpi-point.c (context_alloc): Remove two spurious tests.

--

It is no problem when a==0.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mpi/ec.c b/mpi/ec.c
index 9e007cd9..4f35de04 100644
--- a/mpi/ec.c
+++ b/mpi/ec.c
@@ -495,7 +495,7 @@ _gcry_mpi_ec_p_new (gcry_ctx_t *r_ctx,
   mpi_ec_t ec;
 
   *r_ctx = NULL;
-  if (!p || !a || !mpi_cmp_ui (a, 0))
+  if (!p || !a)
     return GPG_ERR_EINVAL;
 
   ctx = _gcry_ctx_alloc (CONTEXT_TYPE_EC, sizeof *ec, ec_deinit);