// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#pragma once

#include <string>

#include "kudu/util/status.h"

namespace kudu {
namespace security {

// An interface for encrypting and decrypting Kudu's server keys.
class KeyProvider {
 public:
  virtual ~KeyProvider() = default;

  // Decrypts the server key.
  virtual Status DecryptServerKey(const std::string& encrypted_server_key,
                                  const std::string& iv,
                                  const std::string& key_version,
                                  std::string* server_key) = 0;

  // Generates an encrypted server key.
  virtual Status GenerateEncryptedServerKey(std::string* encrypted_server_key,
                                            std::string* iv,
                                            std::string* key_version) = 0;

};
} // namespace security
} // namespace kudu