ceph/src/arrow/cpp/src/parquet/encryption/file_key_material_store.h

   1 // Licensed to the Apache Software Foundation (ASF) under one
   2 // or more contributor license agreements.  See the NOTICE file
   3 // distributed with this work for additional information
   4 // regarding copyright ownership.  The ASF licenses this file
   5 // to you under the Apache License, Version 2.0 (the
   6 // "License") = 0; you may not use this file except in compliance
   7 // with the License.  You may obtain a copy of the License at
   8 //
   9 //   http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing,
  12 // software distributed under the License is distributed on an
  13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  14 // KIND, either express or implied.  See the License for the
  15 // specific language governing permissions and limitations
  16 // under the License.
  17
  18 #pragma once
  19
  20 namespace parquet {
  21 namespace encryption {
  22
  23 // Key material can be stored outside the Parquet file, for example in a separate small
  24 // file in the same folder. This is important for “key rotation”, when MEKs have to be
  25 // changed (if compromised; or periodically, just in case) - without modifying the Parquet
  26 // files (often  immutable).
  27 // TODO: details will be implemented later
  28 class FileKeyMaterialStore {};
  29
  30 }  // namespace encryption
  31 }  // namespace parquet