From ca45c35e65818ec2e2c13291053d2f7a20e709a0 Mon Sep 17 00:00:00 2001
From: Gilles Peskine <Gilles.Peskine@arm.com>
Date: Tue, 26 Jun 2018 16:13:09 +0200
Subject: [PATCH] Fix exercise_signature_key for ECDSA

mbedtls_ecdsa_verify fails when the input is all-bits-zero (mbedtls
issue #1792). Use a different input.
---
 tests/suites/test_suite_psa_crypto.function | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 446af5a19..cb6da7f44 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -189,7 +189,7 @@ static int exercise_signature_key( psa_key_slot_t key,
                                    psa_key_usage_t usage,
                                    psa_algorithm_t alg )
 {
-    unsigned char payload[16] = {0};
+    unsigned char payload[16] = {1};
     size_t payload_length = sizeof( payload );
     unsigned char signature[256] = {0};
     size_t signature_length = sizeof( signature );