include/oox/crypto/CryptoEngine.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_CRYPTOENGINE_HXX
  12 #define INCLUDED_OOX_CRYPTO_CRYPTOENGINE_HXX
  13
  14 #include <vector>
  15
  16 #include <rtl/ustring.hxx>
  17 #include <sal/types.h>
  18
  19 #include <com/sun/star/io/XInputStream.hpp>
  20 #include <com/sun/star/io/XOutputStream.hpp>
  21
  22 namespace oox {
  23     class BinaryXInputStream;
  24     class BinaryXOutputStream;
  25 }
  26
  27 namespace oox::crypto {
  28
  29 class CryptoEngine
  30 {
  31 protected:
  32     std::vector<sal_uInt8> mKey;
  33
  34 public:
  35     CryptoEngine()
  36     {}
  37
  38     virtual ~CryptoEngine()
  39     {}
  40
  41     // Decryption
  42     virtual bool readEncryptionInfo(css::uno::Reference<css::io::XInputStream> & rxInputStream) = 0;
  43
  44     virtual bool generateEncryptionKey(const OUString& rPassword) = 0;
  45
  46     virtual bool decrypt(
  47                     BinaryXInputStream& aInputStream,
  48                     BinaryXOutputStream& aOutputStream) = 0;
  49
  50     // Encryption
  51     virtual void writeEncryptionInfo(BinaryXOutputStream & rStream) = 0;
  52
  53     virtual bool setupEncryption(const OUString& rPassword) = 0;
  54
  55     virtual void encrypt(const css::uno::Reference<css::io::XInputStream> & rxInputStream,
  56                          css::uno::Reference<css::io::XOutputStream> & rxOutputStream,
  57                          sal_uInt32 nSize) = 0;
  58
  59     virtual bool checkDataIntegrity() = 0;
  60 };
  61
  62 } // namespace oox::crypto
  63
  64 #endif
  65
  66 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */