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MySQL 5.1: mysql/src/5.1-dbg/extra/yassl/taocrypt/include/des.hpp Source File
mysql/src/5.1-dbg/extra/yassl/taocrypt/include/des.hpp

00001 /* des.hpp                                
00002  *
00003  * Copyright (C) 2003 Sawtooth Consulting Ltd.
00004  *
00005  * This file is part of yaSSL.
00006  *
00007  * yaSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * There are special exceptions to the terms and conditions of the GPL as it
00013  * is applied to yaSSL. View the full text of the exception in the file
00014  * FLOSS-EXCEPTIONS in the directory of this software distribution.
00015  *
00016  * yaSSL is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU General Public License
00022  * along with this program; if not, write to the Free Software
00023  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
00024  */
00025 
00026 /* des.hpp defines DES, DES_EDE2, and DES_EDE3
00027    see FIPS 46-2 and FIPS 81
00028 */
00029 
00030 
00031 #ifndef TAO_CRYPT_DES_HPP
00032 #define TAO_CRYPT_DES_HPP
00033 
00034 #include "misc.hpp"
00035 #include "modes.hpp"
00036 
00037 namespace TaoCrypt {
00038 
00039 
00040 enum { DES_BLOCK_SIZE = 8, DES_KEY_SIZE = 32 };
00041 
00042 
00043 class BasicDES {
00044 public:
00045     void SetKey(const byte*, word32, CipherDir dir);
00046     void RawProcessBlock(word32&, word32&) const;
00047 protected:
00048     word32 k_[DES_KEY_SIZE];
00049 };
00050 
00051 
00052 // DES 
00053 class DES : public Mode_BASE, public BasicDES {
00054 public:
00055     DES(CipherDir DIR, Mode MODE) 
00056         : Mode_BASE(DES_BLOCK_SIZE), dir_(DIR), mode_(MODE) {}
00057 
00058     void Process(byte*, const byte*, word32);
00059 private:
00060     CipherDir dir_;
00061     Mode      mode_;
00062 
00063     void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
00064 
00065     DES(const DES&);              // hide copy
00066     DES& operator=(const DES&);   // and assign
00067 };
00068 
00069 
00070 // DES_EDE2
00071 class DES_EDE2 : public Mode_BASE {
00072 public:
00073     DES_EDE2(CipherDir DIR, Mode MODE) 
00074         : Mode_BASE(DES_BLOCK_SIZE), dir_(DIR), mode_(MODE) {}
00075 
00076     void SetKey(const byte*, word32, CipherDir dir);
00077     void Process(byte*, const byte*, word32);
00078 private:
00079     CipherDir dir_;
00080     Mode      mode_;
00081 
00082     BasicDES  des1_;
00083     BasicDES  des2_;
00084 
00085     void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
00086 
00087     DES_EDE2(const DES_EDE2&);              // hide copy
00088     DES_EDE2& operator=(const DES_EDE2&);   // and assign
00089 };
00090 
00091 
00092 
00093 // DES_EDE3
00094 class DES_EDE3 : public Mode_BASE {
00095 public:
00096     DES_EDE3(CipherDir DIR, Mode MODE) 
00097         : Mode_BASE(DES_BLOCK_SIZE), dir_(DIR), mode_(MODE) {}
00098 
00099     void SetKey(const byte*, word32, CipherDir dir);
00100     void SetIV(const byte* iv) { memcpy(r_, iv, DES_BLOCK_SIZE); }
00101     void Process(byte*, const byte*, word32);
00102 private:
00103     CipherDir dir_;
00104     Mode      mode_;
00105 
00106     BasicDES  des1_;
00107     BasicDES  des2_;
00108     BasicDES  des3_;
00109 
00110     void AsmProcess(const byte* in, byte* out, void* box) const;
00111     void ProcessAndXorBlock(const byte*, const byte*, byte*) const;
00112 
00113     DES_EDE3(const DES_EDE3&);              // hide copy
00114     DES_EDE3& operator=(const DES_EDE3&);   // and assign
00115 };
00116 
00117 
00118 typedef BlockCipher<ENCRYPTION, DES, ECB> DES_ECB_Encryption;
00119 typedef BlockCipher<DECRYPTION, DES, ECB> DES_ECB_Decryption;
00120 
00121 typedef BlockCipher<ENCRYPTION, DES, CBC> DES_CBC_Encryption;
00122 typedef BlockCipher<DECRYPTION, DES, CBC> DES_CBC_Decryption;
00123 
00124 typedef BlockCipher<ENCRYPTION, DES_EDE2, ECB> DES_EDE2_ECB_Encryption;
00125 typedef BlockCipher<DECRYPTION, DES_EDE2, ECB> DES_EDE2_ECB_Decryption;
00126 
00127 typedef BlockCipher<ENCRYPTION, DES_EDE2, CBC> DES_EDE2_CBC_Encryption;
00128 typedef BlockCipher<DECRYPTION, DES_EDE2, CBC> DES_EDE2_CBC_Decryption;
00129 
00130 typedef BlockCipher<ENCRYPTION, DES_EDE3, ECB> DES_EDE3_ECB_Encryption;
00131 typedef BlockCipher<DECRYPTION, DES_EDE3, ECB> DES_EDE3_ECB_Decryption;
00132 
00133 typedef BlockCipher<ENCRYPTION, DES_EDE3, CBC> DES_EDE3_CBC_Encryption;
00134 typedef BlockCipher<DECRYPTION, DES_EDE3, CBC> DES_EDE3_CBC_Decryption;
00135 
00136 
00137 } // namespace
00138 
00139 
00140 #endif // TAO_CRYPT_DES_HPP
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