1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 #ifndef _ENCRYPTED_DATA_HEADER_HXX_ 24 #define _ENCRYPTED_DATA_HEADER_HXX_ 25 26 #include <sal/types.h> 27 28 /* The structure of this header is as follows: 29 30 Header signature 4 bytes 31 Version number 2 bytes 32 Iteraction count 4 bytes 33 Size 4 bytes 34 EncAlgorithm 4 bytes 35 DigestAlgorithm 4 bytes 36 DerivedKeySize 4 bytes 37 StartKeyAlgorithm 4 bytes 38 Salt length 2 bytes 39 IV length 2 bytes 40 Digest length 2 bytes 41 MediaType length 2 bytes 42 Salt content X bytes 43 IV content X bytes 44 digest content X bytes 45 MediaType X bytes 46 47 */ 48 const sal_uInt32 n_ConstHeader = 0x05024d4dL; // "MM\002\005" 49 const sal_Int32 n_ConstHeaderSize = 38; // + salt length + iv length + digest length + mediatype length 50 const sal_Int16 n_ConstCurrentVersion = 1; 51 #endif 52