aes_cipher
EVP_CIPHER *tdes_cipher = NULL, *aes_cipher = NULL;
ret = TEST_ptr(aes_cipher = EVP_CIPHER_fetch(libctx, "AES-256-CBC", NULL))
&& TEST_int_eq(EVP_CIPHER_get_flags(aes_cipher) & EVP_CIPH_RAND_KEY, 0)
EVP_CIPHER_free(aes_cipher);