From ce746936b6c210e602d106cfbf45cf60b408d871 Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Mon, 10 Aug 2015 19:09:16 +0900
Subject: ecc: fix Montgomery curve bugs.

* cipher/ecc.c (check_secret_key): Y1 should not be NULL when check.
(ecc_check_secret_key): Support Montgomery curve.
* mpi/ec.c (_gcry_mpi_ec_curve_point): Fix condition.
---
 mpi/ec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mpi/ec.c')

diff --git a/mpi/ec.c b/mpi/ec.c
index 0b7c7a71..7266f2a6 100644
--- a/mpi/ec.c
+++ b/mpi/ec.c
@@ -1470,7 +1470,7 @@ _gcry_mpi_ec_curve_point (gcry_mpi_point_t point, mpi_ec_t ctx)
         mpi_rshift (p_minus1, p_minus1, 1);
         ec_powm (w, w, p_minus1, ctx);
 
-        res = mpi_cmp_ui (w, 1);
+        res = !mpi_cmp_ui (w, 1);
 #undef p_minus1
       }
       break;
-- 
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