Change the bit to flip to guarantee failure
For weistrass curves the pair is encoded as 0x04 || x || y.
Flipping one of the bits in the first byte should be a sure failure.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 2ce2443..c84427c 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -5654,10 +5654,10 @@
/* Save the number of slots in use up to this point.
* With PSA, one can be used for the ECDH private key. */
free_slots_before = stats.empty_slots;
-
+
/* Force a simulated bitflip in the server key. to make the
* raw key agreement in ssl_write_client_key_exchange fail. */
- (client.ssl).handshake->ecdh_psa_peerkey[5] ^= 0x02;
+ (client.ssl).handshake->ecdh_psa_peerkey[0] ^= 0x02;
TEST_ASSERT( mbedtls_move_handshake_to_state( &(client.ssl),
&(server.ssl),
@@ -5672,10 +5672,10 @@
exit:
mbedtls_endpoint_free( &client, &client_context );
mbedtls_endpoint_free( &server, &server_context );
-
+
mbedtls_psa_get_stats( &stats );
TEST_ASSERT( stats.empty_slots == MBEDTLS_PSA_KEY_SLOT_COUNT );
-
+
USE_PSA_DONE( );
}
/* END_CASE */