RC2_set_key
RC2_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_get_key_length(ctx),
OSSL_DEPRECATEDIN_3_0 void RC2_set_key(RC2_KEY *key, int len,
RC2_set_key(ks, (int)ctx->keylen, key, (int)rctx->key_bits);
RC2_set_key(&key, 16, &(RC2key[n][0]), 0 /* or 1024 */);