include/oox/crypto/AgileEngine.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   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
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  */
  10
  11 #ifndef INCLUDED_OOX_CRYPTO_AGILEENGINE_HXX
  12 #define INCLUDED_OOX_CRYPTO_AGILEENGINE_HXX
  13
  14 #include <vector>
  15
  16 #include <oox/crypto/CryptTools.hxx>
  17 #include <oox/crypto/CryptoEngine.hxx>
  18 #include <rtl/ustring.hxx>
  19 #include <sal/types.h>
  20
  21 namespace oox {
  22     class BinaryXInputStream;
  23     class BinaryXOutputStream;
  24 }
  25
  26 namespace oox {
  27 namespace core {
  28
  29 const sal_uInt32 SEGMENT_LENGTH = 4096;
  30
  31 struct AgileEncryptionInfo
  32 {
  33     sal_Int32               spinCount;
  34     sal_Int32               saltSize;
  35     sal_Int32               keyBits;
  36     sal_Int32               hashSize;
  37     sal_Int32               blockSize;
  38
  39     OUString cipherAlgorithm;
  40     OUString cipherChaining;
  41     OUString hashAlgorithm;
  42
  43     std::vector<sal_uInt8>  keyDataSalt;
  44     std::vector<sal_uInt8>  saltValue;
  45     std::vector<sal_uInt8>  encryptedVerifierHashInput;
  46     std::vector<sal_uInt8>  encryptedVerifierHashValue;
  47     std::vector<sal_uInt8>  encryptedKeyValue;
  48 };
  49
  50 class AgileEngine : public CryptoEngine
  51 {
  52     AgileEncryptionInfo mInfo;
  53
  54     void calculateHashFinal(const OUString& rPassword, std::vector<sal_uInt8>& aHashFinal);
  55
  56     void calculateBlock(
  57             const sal_uInt8* rBlock,
  58             sal_uInt32 aBlockSize,
  59             std::vector<sal_uInt8>& rHashFinal,
  60             std::vector<sal_uInt8>& rInput,
  61             std::vector<sal_uInt8>& rOutput);
  62
  63     static Crypto::CryptoType cryptoType(const AgileEncryptionInfo& rInfo);
  64
  65 public:
  66     AgileEngine();
  67     virtual ~AgileEngine();
  68
  69     AgileEncryptionInfo& getInfo() { return mInfo;}
  70
  71     virtual void writeEncryptionInfo(
  72                     const OUString& rPassword,
  73                     BinaryXOutputStream& rStream) override;
  74
  75     virtual bool generateEncryptionKey(const OUString& rPassword) override;
  76
  77     virtual bool decrypt(
  78                     BinaryXInputStream& aInputStream,
  79                     BinaryXOutputStream& aOutputStream) override;
  80
  81     virtual void encrypt(
  82                     BinaryXInputStream& aInputStream,
  83                     BinaryXOutputStream& aOutputStream) override;
  84 };
  85
  86 } // namespace core
  87 } // namespace oox
  88
  89 #endif
  90
  91 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */