?? des2.cpp

?? 密碼學中的des算法的C＋＋實現密碼學中的des算法的C＋＋實現
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//  IBM PC Implementation of the DES Cryptographic Algorithm by
//  Dr B. R. Gladman (gladman@seven77.demon.co.uk)
//
//  Some of the techniques in this DES source code are derived 
//  from ideas developed by Richard Outerbridge and Eric Young.  
//  I gratefully acknowledge their contribution.
//
//  DES Timings:
//  Key Setup:    1024 cycles
//  Encrypt:     456.4 cycles =   28.05 mbits/sec
//  Decrypt:     453.1 cycles =   28.25 mbits/sec
//  Mean:        454.8 cycles =   28.15 mbits/sec

#include "stdafx.h"

#define BIG_TABLES

#include "des.h"

#ifdef  BIG_TABLES
#define   TAB_SIZE    256
#else
#define   TAB_SIZE     64
#endif

unsigned long sx_tab[8][TAB_SIZE] =
{
  { 0x00820200L, 0x00020000L, 0x80800000L, 0x80820200L,
    0x00800000L, 0x80020200L, 0x80020000L, 0x80800000L,
    0x80020200L, 0x00820200L, 0x00820000L, 0x80000200L,
    0x80800200L, 0x00800000L, 0x00000000L, 0x80020000L,
    0x00020000L, 0x80000000L, 0x00800200L, 0x00020200L,
    0x80820200L, 0x00820000L, 0x80000200L, 0x00800200L,
    0x80000000L, 0x00000200L, 0x00020200L, 0x80820000L,
    0x00000200L, 0x80800200L, 0x80820000L, 0x00000000L,
    0x00000000L, 0x80820200L, 0x00800200L, 0x80020000L,
    0x00820200L, 0x00020000L, 0x80000200L, 0x00800200L,
    0x80820000L, 0x00000200L, 0x00020200L, 0x80800000L,
    0x80020200L, 0x80000000L, 0x80800000L, 0x00820000L,
    0x80820200L, 0x00020200L, 0x00820000L, 0x80800200L,
    0x00800000L, 0x80000200L, 0x80020000L, 0x00000000L,
    0x00020000L, 0x00800000L, 0x80800200L, 0x00820200L,
    0x80000000L, 0x80820000L, 0x00000200L, 0x80020200L,
#ifdef BIG_TABLES
    0x00820200L, 0x00020000L, 0x80800000L, 0x80820200L,
    0x00800000L, 0x80020200L, 0x80020000L, 0x80800000L,
    0x80020200L, 0x00820200L, 0x00820000L, 0x80000200L,
    0x80800200L, 0x00800000L, 0x00000000L, 0x80020000L,
    0x00020000L, 0x80000000L, 0x00800200L, 0x00020200L,
    0x80820200L, 0x00820000L, 0x80000200L, 0x00800200L,
    0x80000000L, 0x00000200L, 0x00020200L, 0x80820000L,
    0x00000200L, 0x80800200L, 0x80820000L, 0x00000000L,
    0x00000000L, 0x80820200L, 0x00800200L, 0x80020000L,
    0x00820200L, 0x00020000L, 0x80000200L, 0x00800200L,
    0x80820000L, 0x00000200L, 0x00020200L, 0x80800000L,
    0x80020200L, 0x80000000L, 0x80800000L, 0x00820000L,
    0x80820200L, 0x00020200L, 0x00820000L, 0x80800200L,
    0x00800000L, 0x80000200L, 0x80020000L, 0x00000000L,
    0x00020000L, 0x00800000L, 0x80800200L, 0x00820200L,
    0x80000000L, 0x80820000L, 0x00000200L, 0x80020200L,

    0x00820200L, 0x00020000L, 0x80800000L, 0x80820200L,
    0x00800000L, 0x80020200L, 0x80020000L, 0x80800000L,
    0x80020200L, 0x00820200L, 0x00820000L, 0x80000200L,
    0x80800200L, 0x00800000L, 0x00000000L, 0x80020000L,
    0x00020000L, 0x80000000L, 0x00800200L, 0x00020200L,
    0x80820200L, 0x00820000L, 0x80000200L, 0x00800200L,
    0x80000000L, 0x00000200L, 0x00020200L, 0x80820000L,
    0x00000200L, 0x80800200L, 0x80820000L, 0x00000000L,
    0x00000000L, 0x80820200L, 0x00800200L, 0x80020000L,
    0x00820200L, 0x00020000L, 0x80000200L, 0x00800200L,
    0x80820000L, 0x00000200L, 0x00020200L, 0x80800000L,
    0x80020200L, 0x80000000L, 0x80800000L, 0x00820000L,
    0x80820200L, 0x00020200L, 0x00820000L, 0x80800200L,
    0x00800000L, 0x80000200L, 0x80020000L, 0x00000000L,
    0x00020000L, 0x00800000L, 0x80800200L, 0x00820200L,
    0x80000000L, 0x80820000L, 0x00000200L, 0x80020200L,

    0x00820200L, 0x00020000L, 0x80800000L, 0x80820200L,
    0x00800000L, 0x80020200L, 0x80020000L, 0x80800000L,
    0x80020200L, 0x00820200L, 0x00820000L, 0x80000200L,
    0x80800200L, 0x00800000L, 0x00000000L, 0x80020000L,
    0x00020000L, 0x80000000L, 0x00800200L, 0x00020200L,
    0x80820200L, 0x00820000L, 0x80000200L, 0x00800200L,
    0x80000000L, 0x00000200L, 0x00020200L, 0x80820000L,
    0x00000200L, 0x80800200L, 0x80820000L, 0x00000000L,
    0x00000000L, 0x80820200L, 0x00800200L, 0x80020000L,
    0x00820200L, 0x00020000L, 0x80000200L, 0x00800200L,
    0x80820000L, 0x00000200L, 0x00020200L, 0x80800000L,
    0x80020200L, 0x80000000L, 0x80800000L, 0x00820000L,
    0x80820200L, 0x00020200L, 0x00820000L, 0x80800200L,
    0x00800000L, 0x80000200L, 0x80020000L, 0x00000000L,
    0x00020000L, 0x00800000L, 0x80800200L, 0x00820200L,
    0x80000000L, 0x80820000L, 0x00000200L, 0x80020200L,
#endif
  },
  { 0x10042004L, 0x00000000L, 0x00042000L, 0x10040000L,
    0x10000004L, 0x00002004L, 0x10002000L, 0x00042000L,
    0x00002000L, 0x10040004L, 0x00000004L, 0x10002000L,
    0x00040004L, 0x10042000L, 0x10040000L, 0x00000004L,
    0x00040000L, 0x10002004L, 0x10040004L, 0x00002000L,
    0x00042004L, 0x10000000L, 0x00000000L, 0x00040004L,
    0x10002004L, 0x00042004L, 0x10042000L, 0x10000004L,
    0x10000000L, 0x00040000L, 0x00002004L, 0x10042004L,
    0x00040004L, 0x10042000L, 0x10002000L, 0x00042004L,
    0x10042004L, 0x00040004L, 0x10000004L, 0x00000000L,
    0x10000000L, 0x00002004L, 0x00040000L, 0x10040004L,
    0x00002000L, 0x10000000L, 0x00042004L, 0x10002004L,
    0x10042000L, 0x00002000L, 0x00000000L, 0x10000004L,
    0x00000004L, 0x10042004L, 0x00042000L, 0x10040000L,
    0x10040004L, 0x00040000L, 0x00002004L, 0x10002000L,
    0x10002004L, 0x00000004L, 0x10040000L, 0x00042000L,
#ifdef BIG_TABLES
    0x10042004L, 0x00000000L, 0x00042000L, 0x10040000L,
    0x10000004L, 0x00002004L, 0x10002000L, 0x00042000L,
    0x00002000L, 0x10040004L, 0x00000004L, 0x10002000L,
    0x00040004L, 0x10042000L, 0x10040000L, 0x00000004L,
    0x00040000L, 0x10002004L, 0x10040004L, 0x00002000L,
    0x00042004L, 0x10000000L, 0x00000000L, 0x00040004L,
    0x10002004L, 0x00042004L, 0x10042000L, 0x10000004L,
    0x10000000L, 0x00040000L, 0x00002004L, 0x10042004L,
    0x00040004L, 0x10042000L, 0x10002000L, 0x00042004L,
    0x10042004L, 0x00040004L, 0x10000004L, 0x00000000L,
    0x10000000L, 0x00002004L, 0x00040000L, 0x10040004L,
    0x00002000L, 0x10000000L, 0x00042004L, 0x10002004L,
    0x10042000L, 0x00002000L, 0x00000000L, 0x10000004L,
    0x00000004L, 0x10042004L, 0x00042000L, 0x10040000L,
    0x10040004L, 0x00040000L, 0x00002004L, 0x10002000L,
    0x10002004L, 0x00000004L, 0x10040000L, 0x00042000L,

    0x10042004L, 0x00000000L, 0x00042000L, 0x10040000L,
    0x10000004L, 0x00002004L, 0x10002000L, 0x00042000L,
    0x00002000L, 0x10040004L, 0x00000004L, 0x10002000L,
    0x00040004L, 0x10042000L, 0x10040000L, 0x00000004L,
    0x00040000L, 0x10002004L, 0x10040004L, 0x00002000L,
    0x00042004L, 0x10000000L, 0x00000000L, 0x00040004L,
    0x10002004L, 0x00042004L, 0x10042000L, 0x10000004L,
    0x10000000L, 0x00040000L, 0x00002004L, 0x10042004L,
    0x00040004L, 0x10042000L, 0x10002000L, 0x00042004L,
    0x10042004L, 0x00040004L, 0x10000004L, 0x00000000L,
    0x10000000L, 0x00002004L, 0x00040000L, 0x10040004L,
    0x00002000L, 0x10000000L, 0x00042004L, 0x10002004L,
    0x10042000L, 0x00002000L, 0x00000000L, 0x10000004L,
    0x00000004L, 0x10042004L, 0x00042000L, 0x10040000L,
    0x10040004L, 0x00040000L, 0x00002004L, 0x10002000L,
    0x10002004L, 0x00000004L, 0x10040000L, 0x00042000L,

    0x10042004L, 0x00000000L, 0x00042000L, 0x10040000L,
    0x10000004L, 0x00002004L, 0x10002000L, 0x00042000L,
    0x00002000L, 0x10040004L, 0x00000004L, 0x10002000L,
    0x00040004L, 0x10042000L, 0x10040000L, 0x00000004L,
    0x00040000L, 0x10002004L, 0x10040004L, 0x00002000L,
    0x00042004L, 0x10000000L, 0x00000000L, 0x00040004L,
    0x10002004L, 0x00042004L, 0x10042000L, 0x10000004L,
    0x10000000L, 0x00040000L, 0x00002004L, 0x10042004L,
    0x00040004L, 0x10042000L, 0x10002000L, 0x00042004L,
    0x10042004L, 0x00040004L, 0x10000004L, 0x00000000L,
    0x10000000L, 0x00002004L, 0x00040000L, 0x10040004L,
    0x00002000L, 0x10000000L, 0x00042004L, 0x10002004L,
    0x10042000L, 0x00002000L, 0x00000000L, 0x10000004L,
    0x00000004L, 0x10042004L, 0x00042000L, 0x10040000L,
    0x10040004L, 0x00040000L, 0x00002004L, 0x10002000L,
    0x10002004L, 0x00000004L, 0x10040000L, 0x00042000L,
#endif
  },
  { 0x41000000L, 0x01010040L, 0x00000040L, 0x41000040L,
    0x40010000L, 0x01000000L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00010000L, 0x01010000L, 0x40000000L,
    0x41010040L, 0x40000040L, 0x40000000L, 0x41010000L,
    0x00000000L, 0x40010000L, 0x01010040L, 0x00000040L,
    0x40000040L, 0x41010040L, 0x00010000L, 0x41000000L,
    0x41010000L, 0x01000040L, 0x40010040L, 0x01010000L,
    0x00010040L, 0x00000000L, 0x01000000L, 0x40010040L,
    0x01010040L, 0x00000040L, 0x40000000L, 0x00010000L,
    0x40000040L, 0x40010000L, 0x01010000L, 0x41000040L,
    0x00000000L, 0x01010040L, 0x00010040L, 0x41010000L,
    0x40010000L, 0x01000000L, 0x41010040L, 0x40000000L,
    0x40010040L, 0x41000000L, 0x01000000L, 0x41010040L,
    0x00010000L, 0x01000040L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00000000L, 0x41010000L, 0x40000040L,
    0x41000000L, 0x40010040L, 0x00000040L, 0x01010000L,
#ifdef BIG_TABLES
    0x41000000L, 0x01010040L, 0x00000040L, 0x41000040L,
    0x40010000L, 0x01000000L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00010000L, 0x01010000L, 0x40000000L,
    0x41010040L, 0x40000040L, 0x40000000L, 0x41010000L,
    0x00000000L, 0x40010000L, 0x01010040L, 0x00000040L,
    0x40000040L, 0x41010040L, 0x00010000L, 0x41000000L,
    0x41010000L, 0x01000040L, 0x40010040L, 0x01010000L,
    0x00010040L, 0x00000000L, 0x01000000L, 0x40010040L,
    0x01010040L, 0x00000040L, 0x40000000L, 0x00010000L,
    0x40000040L, 0x40010000L, 0x01010000L, 0x41000040L,
    0x00000000L, 0x01010040L, 0x00010040L, 0x41010000L,
    0x40010000L, 0x01000000L, 0x41010040L, 0x40000000L,
    0x40010040L, 0x41000000L, 0x01000000L, 0x41010040L,
    0x00010000L, 0x01000040L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00000000L, 0x41010000L, 0x40000040L,
    0x41000000L, 0x40010040L, 0x00000040L, 0x01010000L,

    0x41000000L, 0x01010040L, 0x00000040L, 0x41000040L,
    0x40010000L, 0x01000000L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00010000L, 0x01010000L, 0x40000000L,
    0x41010040L, 0x40000040L, 0x40000000L, 0x41010000L,
    0x00000000L, 0x40010000L, 0x01010040L, 0x00000040L,
    0x40000040L, 0x41010040L, 0x00010000L, 0x41000000L,
    0x41010000L, 0x01000040L, 0x40010040L, 0x01010000L,
    0x00010040L, 0x00000000L, 0x01000000L, 0x40010040L,
    0x01010040L, 0x00000040L, 0x40000000L, 0x00010000L,
    0x40000040L, 0x40010000L, 0x01010000L, 0x41000040L,
    0x00000000L, 0x01010040L, 0x00010040L, 0x41010000L,
    0x40010000L, 0x01000000L, 0x41010040L, 0x40000000L,
    0x40010040L, 0x41000000L, 0x01000000L, 0x41010040L,
    0x00010000L, 0x01000040L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00000000L, 0x41010000L, 0x40000040L,
    0x41000000L, 0x40010040L, 0x00000040L, 0x01010000L,

    0x41000000L, 0x01010040L, 0x00000040L, 0x41000040L,
    0x40010000L, 0x01000000L, 0x41000040L, 0x00010040L,
    0x01000040L, 0x00010000L, 0x01010000L, 0x40000000L,
    0x41010040L, 0x40000040L, 0x40000000L, 0x41010000L,
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