Fix exercise_signature_key for ECDSA
mbedtls_ecdsa_verify fails when the input is all-bits-zero (mbedtls
issue Use a different input.
@@ -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 );
