MAX_IV_SIZE
u8 local_iv_ctr[MAX_IV_SIZE];
get_random_bytes(ctx->iv, MAX_IV_SIZE);
flow_dump(" iv: ", ctx->iv, MAX_IV_SIZE);
u8 resp_aad[ALIGN(MAX_ASSOC_SIZE + MAX_IV_SIZE,
u8 iv[MAX_IV_SIZE];
2 * MAX_KEY_SIZE + 2 * MAX_IV_SIZE)
MAX_KEY_SIZE + MAX_IV_SIZE)