package/inc/EncryptedDataHeader.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
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   9  * This file incorporates work covered by the following license notice:
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  14  *   ownership. The ASF licenses this file to you under the Apache
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  18  */
  19 #ifndef INCLUDED_PACKAGE_INC_ENCRYPTEDDATAHEADER_HXX
  20 #define INCLUDED_PACKAGE_INC_ENCRYPTEDDATAHEADER_HXX
  21
  22 #include <sal/types.h>
  23
  24 /* The structure of this header is as follows:
  25
  26    Header signature  4 bytes
  27    Version number    2 bytes
  28    Iteration count   4 bytes
  29    Size              4 bytes
  30    EncAlgorithm      4 bytes
  31    DigestAlgorithm   4 bytes
  32    DerivedKeySize    4 bytes
  33    StartKeyAlgorithm 4 bytes
  34    Salt length       2 bytes
  35    IV length         2 bytes
  36    Digest length     2 bytes
  37    MediaType length  2 bytes
  38    Salt content      X bytes
  39    IV content        X bytes
  40    digest content    X bytes
  41    MediaType         X bytes
  42
  43 */
  44 const sal_uInt32 n_ConstHeader = 0x05024d4dL; // "MM\002\005"
  45 const sal_Int32 n_ConstHeaderSize = 38; // + salt length + iv length + digest length + mediatype length
  46 const sal_Int16 n_ConstCurrentVersion = 1;
  47 #endif
  48
  49 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */