CAST_set_key
LCRYPTO_ALIAS(CAST_set_key);
void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
CAST_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
LCRYPTO_USED(CAST_set_key);
CAST_set_key(&key, k_len[z], k);
CAST_set_key(&key_b, 16, out_b);
CAST_set_key(&key, 16, out_a);
CAST_set_key(&ks->ks_cast, len, key);
CAST_set_key(&cast_ks, 16, key16);