include/oox/crypto/CryptTools.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  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_OOX_CRYPTO_CRYPTTOOLS_HXX
  21 #define INCLUDED_OOX_CRYPTO_CRYPTTOOLS_HXX
  22
  23 #include <config_oox.h>
  24
  25 #if USE_TLS_OPENSSL
  26 #include <openssl/evp.h>
  27 #include <openssl/sha.h>
  28 #endif // USE_TLS_OPENSSL
  29
  30 #if USE_TLS_NSS
  31 #include <nss.h>
  32 #include <pk11pub.h>
  33 #include <sechash.h>
  34 #endif // USE_TLS_NSS
  35
  36 #include <vector>
  37
  38 #include <sal/types.h>
  39
  40 namespace oox {
  41 namespace core {
  42
  43 class Crypto
  44 {
  45 public:
  46     enum CryptoType
  47     {
  48         UNKNOWN,
  49         AES_128_ECB,
  50         AES_128_CBC,
  51         AES_256_CBC,
  52     };
  53
  54 protected:
  55 #if USE_TLS_OPENSSL
  56     EVP_CIPHER_CTX mContext;
  57 #endif
  58 #if USE_TLS_NSS
  59     PK11Context* mContext;
  60     SECItem*     mSecParam;
  61     PK11SymKey*  mSymKey;
  62 #endif
  63
  64 #if USE_TLS_OPENSSL
  65     const EVP_CIPHER* getCipher(CryptoType type);
  66 #endif
  67 #if USE_TLS_NSS
  68     void setupContext(
  69             std::vector<sal_uInt8>& key,
  70             std::vector<sal_uInt8>& iv,
  71             CryptoType type,
  72             CK_ATTRIBUTE_TYPE operation);
  73 #endif
  74
  75 protected:
  76     Crypto();
  77
  78 public:
  79     virtual ~Crypto();
  80
  81     virtual sal_uInt32 update(
  82                     std::vector<sal_uInt8>& output,
  83                     std::vector<sal_uInt8>& input,
  84                     sal_uInt32 inputLength = 0) = 0;
  85 };
  86
  87 class Decrypt : public Crypto
  88 {
  89 public:
  90     Decrypt(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv, CryptoType type);
  91
  92     virtual sal_uInt32 update(
  93                     std::vector<sal_uInt8>& output,
  94                     std::vector<sal_uInt8>& input,
  95                     sal_uInt32 inputLength = 0) override;
  96
  97
  98     static sal_uInt32 aes128ecb(
  99                     std::vector<sal_uInt8>& output,
 100                     std::vector<sal_uInt8>& input,
 101                     std::vector<sal_uInt8>& key );
 102
 103 };
 104
 105 class Encrypt : public Crypto
 106 {
 107 public:
 108     Encrypt(std::vector<sal_uInt8>& key, std::vector<sal_uInt8>& iv, CryptoType type);
 109
 110     virtual sal_uInt32 update(
 111                     std::vector<sal_uInt8>& output,
 112                     std::vector<sal_uInt8>& input,
 113                     sal_uInt32 inputLength = 0) override;
 114 };
 115
 116 } // namespace core
 117 } // namespace oox
 118
 119 #endif
 120
 121 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */