(* plaintext: array of bytes rks: expanded round keys, array of Int32 *)
Parameter mbed_tls_initial_add_round_key: list Z -> list Z -> four_ints.

Axiom mbed_tls_initial_add_round_key_def: mbed_tls_initial_add_round_key =
fun (plaintext : list Z) (rks : list Z) =>
((mbed_tls_initial_add_round_key_col 0 plaintext rks),
((mbed_tls_initial_add_round_key_col 1 plaintext rks),
((mbed_tls_initial_add_round_key_col 2 plaintext rks),
((mbed_tls_initial_add_round_key_col 3 plaintext rks))))).