src/kudu/fs/ranger_kms_key_provider.h

// 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 <utility>

#include "kudu/fs/key_provider.h"
#include "kudu/ranger-kms/ranger_kms_client.h"
#include "kudu/util/status.h"

namespace kudu {
namespace security {
class RangerKMSKeyProvider : public KeyProvider {
 public:
  ~RangerKMSKeyProvider() override {}

  RangerKMSKeyProvider(std::string kms_url, std::string cluster_key_name)
      : client_(std::move(kms_url), std::move(cluster_key_name)) {}

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

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

 private:
  RangerKMSClient client_;
};
} // namespace security
} // namespace kudu