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[推荐]三重DES算法源代码(C)
2009-5-20 22:00 7000

[推荐]三重DES算法源代码(C)

2009-5-20 22:00
7000
1.头定义
* d3des.h - 
* 
*    Headers and defines for d3des.c 
*    Graven Imagery, 1992. 
* 
* Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge 
*    (GEnie : OUTER; CIS : [71755,204]) 
*/ 
 
#define D2_DES        /* include double-length support */ 
#define D3_DES        /* include triple-length support */ 
 
#ifdef D3_DES 
#ifndef D2_DES 
#define D2_DES        /* D2_DES is needed for D3_DES */ 
#endif 
#endif 
 
#define EN0    0    /* MODE == encrypt */ 
#define DE1    1    /* MODE == decrypt */ 
 
/* A useful alias on 68000-ish machines, but NOT USED HERE. */ 
 
typedef union { 
   unsigned long blok[2]; 
   unsigned short word[4]; 
   unsigned char byte[8]; 
   } M68K; 
 
extern void deskey(unsigned char *, short); 
/*             hexkey[8]   MODE 
* Sets the internal key register according to the hexadecimal 
* key contained in the 8 bytes of hexkey, according to the DES, 
* for encryption or decryption according to MODE. 
*/ 
 
extern void usekey(unsigned long *); 
/*           cookedkey[32] 
* Loads the internal key register with the data in cookedkey. 
*/ 
 
extern void cpkey(unsigned long *); 
/*           cookedkey[32] 
* Copies the contents of the internal key register into the storage 
* located at &cookedkey[0]. 
*/ 
 
extern void des(unsigned char *, unsigned char *); 
/*           from[8]         to[8] 
* Encrypts/Decrypts (according to the key currently loaded in the 
* internal key register) one block of eight bytes at address 'from' 
* into the block at address 'to'. They can be the same. 
*/ 
 
#ifdef D2_DES 
 
#define desDkey(a,b)    des2key((a),(b)) 
extern void des2key(unsigned char *, short); 
/*             hexkey[16]   MODE 
* Sets the internal key registerS according to the hexadecimal 
* keyS contained in the 16 bytes of hexkey, according to the DES, 
* for DOUBLE encryption or decryption according to MODE. 
* NOTE: this clobbers all three key registers! 
*/ 
 
extern void Ddes(unsigned char *, unsigned char *); 
/*           from[8]         to[8] 
* Encrypts/Decrypts (according to the keyS currently loaded in the 
* internal key registerS) one block of eight bytes at address 'from' 
* into the block at address 'to'. They can be the same. 
*/ 
 
extern void D2des(unsigned char *, unsigned char *); 
/*           from[16]         to[16] 
* Encrypts/Decrypts (according to the keyS currently loaded in the 
* internal key registerS) one block of SIXTEEN bytes at address 'from' 
* into the block at address 'to'. They can be the same. 
*/ 
 
extern void makekey(char *, unsigned char *); 
/*        *password,    single-length key[8] 
* With a double-length default key, this routine hashes a NULL-terminated 
* string into an eight-byte random-looking key, suitable for use with the 
* deskey() routine. 
*/ 
 
#define makeDkey(a,b)    make2key((a),(b)) 
extern void make2key(char *, unsigned char *); 
/*        *password,    double-length key[16] 
* With a double-length default key, this routine hashes a NULL-terminated 
* string into a sixteen-byte random-looking key, suitable for use with the 
* des2key() routine. 
*/ 
 
#ifndef D3_DES    /* D2_DES only */ 
 
#define useDkey(a)    use2key((a)) 
#define cpDkey(a)    cp2key((a)) 
 
extern void use2key(unsigned long *); 
/*           cookedkey[64] 
* Loads the internal key registerS with the data in cookedkey. 
* NOTE: this clobbers all three key registers! 
*/ 
 
extern void cp2key(unsigned long *); 
/*           cookedkey[64] 
* Copies the contents of the internal key registerS into the storage 
* located at &cookedkey[0]. 
*/ 
 
#else    /* D3_DES too */ 
 
#define useDkey(a)    use3key((a)) 
#define cpDkey(a)    cp3key((a)) 
 
extern void des3key(unsigned char *, short); 
/*             hexkey[24]   MODE 
* Sets the internal key registerS according to the hexadecimal 
* keyS contained in the 24 bytes of hexkey, according to the DES, 
* for DOUBLE encryption or decryption according to MODE. 
*/ 
 
extern void use3key(unsigned long *); 
/*           cookedkey[96] 
* Loads the 3 internal key registerS with the data in cookedkey. 
*/ 
 
extern void cp3key(unsigned long *); 
/*           cookedkey[96] 
* Copies the contents of the 3 internal key registerS into the storage 
* located at &cookedkey[0]. 
*/ 
 
extern void make3key(char *, unsigned char *); 
/*        *password,    triple-length key[24] 
* With a triple-length default key, this routine hashes a NULL-terminated 
* string into a twenty-four-byte random-looking key, suitable for use with 
* the des3key() routine. 
*/ 
 
#endif    /* D3_DES */ 
#endif    /* D2_DES */ 
 
/* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery 
********************************************************************/ 


2.实现 [/QUOTE]/* D3DES (V5.09) -
/* 
* A portable, public domain, version of the Data Encryption Standard. 
* 
* Written with Symantec's THINK (Lightspeed) C by Richard Outerbridge. 
* Thanks to: Dan Hoey for his excellent Initial and Inverse permutation 
* code; Jim Gillogly & Phil Karn for the DES key schedule code; Dennis 
* Ferguson, Eric Young and Dana How for comparing notes; and Ray Lau, 
* for humouring me on. 
* 
* Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge. 
* (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992. 
*/ 
 
#include "d3des.h" 
 
static void scrunch(unsigned char *, unsigned long *); 
static void unscrun(unsigned long *, unsigned char *); 
static void desfunc(unsigned long *, unsigned long *); 
static void cookey(unsigned long *); 
 
static unsigned long KnL[32] = { 0L }; 
static unsigned long KnR[32] = { 0L }; 
static unsigned long Kn3[32] = { 0L }; 
static unsigned char Df_Key[24] = { 
   0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef, 
   0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10, 
   0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67 }; 
 
static unsigned short bytebit[8]    = { 
   0200, 0100, 040, 020, 010, 04, 02, 01 }; 
 
static unsigned long bigbyte[24] = { 
   0x800000L,    0x400000L,    0x200000L,    0x100000L, 
   0x80000L,    0x40000L,    0x20000L,    0x10000L, 
   0x8000L,    0x4000L,    0x2000L,    0x1000L, 
   0x800L,    0x400L,    0x200L,    0x100L, 
   0x80L,        0x40L,        0x20L,        0x10L, 
   0x8L,        0x4L,        0x2L,        0x1L    }; 
 
/* Use the key schedule specified in the Standard (ANSI X3.92-1981). */ 
 
static unsigned char pc1[56] = { 
   56, 48, 40, 32, 24, 16, 8,     0, 57, 49, 41, 33, 25, 17, 
    9, 1, 58, 50, 42, 34, 26,    18, 10, 2, 59, 51, 43, 35, 
   62, 54, 46, 38, 30, 22, 14,     6, 61, 53, 45, 37, 29, 21, 
   13, 5, 60, 52, 44, 36, 28,    20, 12, 4, 27, 19, 11, 3 }; 
 
static unsigned char totrot[16] = { 
   1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28 }; 
 
static unsigned char pc2[48] = { 
   13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9, 
   22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1, 
   40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47, 
   43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31 }; 
 
void deskey(key, edf)    /* Thanks to James Gillogly & Phil Karn! */ 
unsigned char *key; 
short edf; 
{ 
   register int i, j, l, m, n; 
   unsigned char pc1m[56], pcr[56]; 
   unsigned long kn[32]; 
 
   for ( j = 0; j < 56; j++ ) { 
       l = pc1[j]; 
       m = l & 07; 
       pc1m[j] = (key[l >> 3] & bytebit[m]) ? 1 : 0; 
       } 
   for( i = 0; i < 16; i++ ) { 
       if( edf == DE1 ) m = (15 - i) << 1; 
       else m = i << 1; 
       n = m + 1; 
       kn[m] = kn[n] = 0L; 
       for( j = 0; j < 28; j++ ) { 
           l = j + totrot[i]; 
           if( l < 28 ) pcr[j] = pc1m[l]; 
           else pcr[j] = pc1m[l - 28]; 
           } 
       for( j = 28; j < 56; j++ ) { 
          l = j + totrot[i]; 
          if( l < 56 ) pcr[j] = pc1m[l]; 
          else pcr[j] = pc1m[l - 28]; 
          } 
       for( j = 0; j < 24; j++ ) { 
           if( pcr[pc2[j]] ) kn[m] |= bigbyte[j]; 
           if( pcr[pc2[j+24]] ) kn[n] |= bigbyte[j]; 
           } 
       } 
   cookey(kn); 
   return; 
   } 
 
static void cookey(raw1) 
register unsigned long *raw1; 
{ 
   register unsigned long *cook, *raw0; 
   unsigned long dough[32]; 
   register int i; 
 
   cook = dough; 
   for( i = 0; i < 16; i++, raw1++ ) { 
       raw0 = raw1++; 
       *cook     = (*raw0 & 0x00fc0000L) << 6; 
       *cook    |= (*raw0 & 0x00000fc0L) << 10; 
       *cook    |= (*raw1 & 0x00fc0000L) >> 10; 
       *cook++ |= (*raw1 & 0x00000fc0L) >> 6; 
       *cook     = (*raw0 & 0x0003f000L) << 12; 
       *cook    |= (*raw0 & 0x0000003fL) << 16; 
       *cook    |= (*raw1 & 0x0003f000L) >> 4; 
       *cook++ |= (*raw1 & 0x0000003fL); 
       } 
   usekey(dough); 
   return; 
   } 
 
void cpkey(into) 
register unsigned long *into; 
{ 
   register unsigned long *from, *endp; 
 
   from = KnL, endp = &KnL[32]; 
   while( from < endp ) *into++ = *from++; 
   return; 
   } 
 
void usekey(from) 
register unsigned long *from; 
{ 
   register unsigned long *to, *endp; 
 
   to = KnL, endp = &KnL[32]; 
   while( to < endp ) *to++ = *from++; 
   return; 
   } 
 
void des(inblock, outblock) 
unsigned char *inblock, *outblock; 
{ 
   unsigned long work[2]; 
 
   scrunch(inblock, work); 
   desfunc(work, KnL); 
   unscrun(work, outblock); 
   return; 
   } 
 
static void scrunch(outof, into) 
register unsigned char *outof; 
register unsigned long *into; 
{ 
   *into     = (*outof++ & 0xffL) << 24; 
   *into    |= (*outof++ & 0xffL) << 16; 
   *into    |= (*outof++ & 0xffL) << 8; 
   *into++ |= (*outof++ & 0xffL); 
   *into     = (*outof++ & 0xffL) << 24; 
   *into    |= (*outof++ & 0xffL) << 16; 
   *into    |= (*outof++ & 0xffL) << 8; 
   *into    |= (*outof   & 0xffL); 
   return; 
   } 
 
static void unscrun(outof, into) 
register unsigned long *outof; 
register unsigned char *into; 
{ 
   *into++ = (*outof >> 24) & 0xffL; 
   *into++ = (*outof >> 16) & 0xffL; 
   *into++ = (*outof >> 8) & 0xffL; 
   *into++ = *outof++     & 0xffL; 
   *into++ = (*outof >> 24) & 0xffL; 
   *into++ = (*outof >> 16) & 0xffL; 
   *into++ = (*outof >> 8) & 0xffL; 
   *into    = *outof     & 0xffL; 
   return; 
   } 
 
static unsigned long SP1[64] = { 
   0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L, 
   0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L, 
   0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L, 
   0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L, 
   0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L, 
   0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L, 
   0x00010004L, 0x01000004L, 0x01000004L, 0x00010004L, 
   0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L, 
   0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L, 
   0x01010400L, 0x01000000L, 0x01000000L, 0x00000400L, 
   0x01010004L, 0x00010000L, 0x00010400L, 0x01000004L, 
   0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L, 
   0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L, 
   0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L, 
   0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L, 
   0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L }; 
 
static unsigned long SP2[64] = { 
   0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L, 
   0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L, 
   0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L, 
   0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L, 
   0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L, 
   0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L, 
   0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L, 
   0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L, 
   0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L, 
   0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L, 
   0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L, 
   0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L, 
   0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L, 
   0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L, 
   0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L, 
   0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L }; 
 
static unsigned long SP3[64] = { 
   0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L, 
   0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L, 
   0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L, 
   0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L, 
   0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L, 
   0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L, 
   0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L, 
   0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L, 
   0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L, 
   0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L, 
   0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L, 
   0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L, 
   0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L, 
   0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L, 
   0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L, 
   0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L }; 
 
static unsigned long SP4[64] = { 
   0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, 
   0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L, 
   0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L, 
   0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L, 
   0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L, 
   0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L, 
   0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L, 
   0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L, 
   0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L, 
   0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L, 
   0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L, 
   0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, 
   0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L, 
   0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L, 
   0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L, 
   0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L }; 
 
static unsigned long SP5[64] = { 
   0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L, 
   0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L, 
   0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L, 
   0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L, 
   0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L, 
   0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L, 
   0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L, 
   0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L, 
   0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L, 
   0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L, 
   0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L, 
   0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L, 
   0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L, 
   0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L, 
   0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L, 
   0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L }; 
 
static unsigned long SP6[64] = { 
   0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L, 
   0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L, 
   0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L, 
   0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L, 
   0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L, 
   0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L, 
   0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L, 
   0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L, 
   0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L, 
   0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L, 
   0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L, 
   0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L, 
   0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L, 
   0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L, 
   0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L, 
   0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L }; 
 
static unsigned long SP7[64] = { 
   0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L, 
   0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L, 
   0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L, 
   0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L, 
   0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L, 
   0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L, 
   0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L, 
   0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L, 
   0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L, 
   0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L, 
   0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L, 
   0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L, 
   0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L, 
   0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L, 
   0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L, 
   0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L }; 
 
static unsigned long SP8[64] = { 
   0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L, 
   0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L, 
   0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L, 
   0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L, 
   0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L, 
   0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L, 
   0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L, 
   0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L, 
   0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L, 
   0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L, 
   0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L, 
   0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L, 
   0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L, 
   0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L, 
   0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L, 
   0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L }; 
 
static void desfunc(block, keys) 
register unsigned long *block, *keys; 
{ 
   register unsigned long fval, work, right, leftt; 
   register int round; 
 
   leftt = block[0]; 
   right = block[1]; 
   work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL; 
   right ^= work; 
   leftt ^= (work << 4); 
   work = ((leftt >> 16) ^ right) & 0x0000ffffL; 
   right ^= work; 
   leftt ^= (work << 16); 
   work = ((right >> 2) ^ leftt) & 0x33333333L; 
   leftt ^= work; 
   right ^= (work << 2); 
   work = ((right >> 8) ^ leftt) & 0x00ff00ffL; 
   leftt ^= work; 
   right ^= (work << 8); 
   right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL; 
   work = (leftt ^ right) & 0xaaaaaaaaL; 
   leftt ^= work; 
   right ^= work; 
   leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL; 
 
   for( round = 0; round < 8; round++ ) { 
       work = (right << 28) | (right >> 4); 
       work ^= *keys++; 
       fval = SP7[ work         & 0x3fL]; 
       fval |= SP5[(work >> 8) & 0x3fL]; 
       fval |= SP3[(work >> 16) & 0x3fL]; 
       fval |= SP1[(work >> 24) & 0x3fL]; 
       work = right ^ *keys++; 
       fval |= SP8[ work         & 0x3fL]; 
       fval |= SP6[(work >> 8) & 0x3fL]; 
       fval |= SP4[(work >> 16) & 0x3fL]; 
       fval |= SP2[(work >> 24) & 0x3fL]; 
       leftt ^= fval; 
       work = (leftt << 28) | (leftt >> 4); 
       work ^= *keys++; 
       fval = SP7[ work         & 0x3fL]; 
       fval |= SP5[(work >> 8) & 0x3fL]; 
       fval |= SP3[(work >> 16) & 0x3fL]; 
       fval |= SP1[(work >> 24) & 0x3fL]; 
       work = leftt ^ *keys++; 
       fval |= SP8[ work         & 0x3fL]; 
       fval |= SP6[(work >> 8) & 0x3fL]; 
       fval |= SP4[(work >> 16) & 0x3fL]; 
       fval |= SP2[(work >> 24) & 0x3fL]; 
       right ^= fval; 
       } 
 
   right = (right << 31) | (right >> 1); 
   work = (leftt ^ right) & 0xaaaaaaaaL; 
   leftt ^= work; 
   right ^= work; 
   leftt = (leftt << 31) | (leftt >> 1); 
   work = ((leftt >> 8) ^ right) & 0x00ff00ffL; 
   right ^= work; 
   leftt ^= (work << 8); 
   work = ((leftt >> 2) ^ right) & 0x33333333L; 
   right ^= work; 
   leftt ^= (work << 2); 
   work = ((right >> 16) ^ leftt) & 0x0000ffffL; 
   leftt ^= work; 
   right ^= (work << 16); 
   work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL; 
   leftt ^= work; 
   right ^= (work << 4); 
   *block++ = right; 
   *block = leftt; 
   return; 
   } 
 
#ifdef D2_DES 
 
void des2key(hexkey, mode)        /* stomps on Kn3 too */ 
unsigned char *hexkey;            /* unsigned char[16] */ 
short mode; 
{ 
   short revmod; 
 
   revmod = (mode == EN0) ? DE1 : EN0; 
   deskey(&hexkey[8], revmod); 
   cpkey(KnR); 
   deskey(hexkey, mode); 
   cpkey(Kn3);                    /* Kn3 = KnL */ 
   return; 
   } 
 
void Ddes(from, into) 
unsigned char *from, *into;        /* unsigned char[8] */ 
{ 
   unsigned long work[2]; 
 
   scrunch(from, work); 
   desfunc(work, KnL); 
   desfunc(work, KnR); 
   desfunc(work, Kn3); 
   unscrun(work, into); 
   return; 
   } 
 
void D2des(from, into) 
unsigned char *from;            /* unsigned char[16] */ 
unsigned char *into;            /* unsigned char[16] */ 
{ 
   unsigned long *right, *l1, swap; 
   unsigned long leftt[2], bufR[2]; 
 
   right = bufR; 
   l1 = &leftt[1]; 
   scrunch(from, leftt); 
   scrunch(&from[8], right); 
   desfunc(leftt, KnL); 
   desfunc(right, KnL); 
   swap = *l1; 
   *l1 = *right; 
   *right = swap; 
   desfunc(leftt, KnR); 
   desfunc(right, KnR); 
   swap = *l1; 
   *l1 = *right; 
   *right = swap; 
   desfunc(leftt, Kn3); 
   desfunc(right, Kn3); 
   unscrun(leftt, into); 
   unscrun(right, &into[8]); 
   return; 
   } 
 
void makekey(aptr, kptr) 
register char *aptr;                /* NULL-terminated */ 
register unsigned char *kptr;        /* unsigned char[8] */ 
{ 
   register unsigned char *store; 
   register int first, i; 
   unsigned long savek[96]; 
 
   cpDkey(savek); 
   des2key(Df_Key, EN0); 
   for( i = 0; i < 8; i++ ) kptr[i] = Df_Key[i]; 
   first = 1; 
   while( (*aptr != '\0') || first ) { 
       store = kptr; 
       for( i = 0; i < 8 && (*aptr != '\0'); i++ ) { 
           *store++ ^= *aptr & 0x7f; 
           *aptr++ = '\0'; 
           } 
       Ddes(kptr, kptr); 
       first = 0; 
       } 
   useDkey(savek); 
   return; 
   } 
 
void make2key(aptr, kptr) 
register char *aptr;                /* NULL-terminated   */ 
register unsigned char *kptr;        /* unsigned char[16] */ 
{ 
   register unsigned char *store; 
   register int first, i; 
   unsigned long savek[96]; 
 
   cpDkey(savek); 
   des2key(Df_Key, EN0); 
   for( i = 0; i < 16; i++ ) kptr[i] = Df_Key[i]; 
   first = 1; 
   while( (*aptr != '\0') || first ) { 
       store = kptr; 
       for( i = 0; i < 16 && (*aptr != '\0'); i++ ) { 
           *store++ ^= *aptr & 0x7f; 
           *aptr++ = '\0'; 
           } 
       D2des(kptr, kptr); 
       first = 0; 
       } 
   useDkey(savek); 
   return; 
   } 
 
#ifndef D3_DES    /* D2_DES only */ 
#ifdef    D2_DES    /* iff D2_DES! */ 
 
void cp2key(into) 
register unsigned long *into;    /* unsigned long[64] */ 
{ 
   register unsigned long *from, *endp; 
 
   cpkey(into); 
   into = &into[32]; 
   from = KnR, endp = &KnR[32]; 
   while( from < endp ) *into++ = *from++; 
   return; 
   } 
 
void use2key(from)                /* stomps on Kn3 too */ 
register unsigned long *from;    /* unsigned long[64] */ 
{ 
   register unsigned long *to, *endp; 
 
   usekey(from); 
   from = &from[32]; 
   to = KnR, endp = &KnR[32]; 
   while( to < endp ) *to++ = *from++; 
   cpkey(Kn3);                    /* Kn3 = KnL */ 
   return; 
   } 
 
#endif    /* iff D2_DES */ 
#else    /* D3_DES too */ 
 
static void D3des(unsigned char *, unsigned char *); 
 
void des3key(hexkey, mode) 
unsigned char *hexkey;            /* unsigned char[24] */ 
short mode; 
{ 
   unsigned char *first, *third; 
   short revmod; 
 
   if( mode == EN0 ) { 
       revmod = DE1; 
       first = hexkey; 
       third = &hexkey[16]; 
       } 
   else { 
       revmod = EN0; 
       first = &hexkey[16]; 
       third = hexkey; 
       } 
   deskey(&hexkey[8], revmod); 
   cpkey(KnR); 
   deskey(third, mode); 
   cpkey(Kn3); 
   deskey(first, mode); 
   return; 
   } 
 
void cp3key(into) 
register unsigned long *into;    /* unsigned long[96] */ 
{ 
   register unsigned long *from, *endp; 
 
   cpkey(into); 
   into = &into[32]; 
   from = KnR, endp = &KnR[32]; 
   while( from < endp ) *into++ = *from++; 
   from = Kn3, endp = &Kn3[32]; 
   while( from < endp ) *into++ = *from++; 
   return; 
   } 
 
void use3key(from) 
register unsigned long *from;    /* unsigned long[96] */ 
{ 
   register unsigned long *to, *endp; 
 
   usekey(from); 
   from = &from[32]; 
   to = KnR, endp = &KnR[32]; 
   while( to < endp ) *to++ = *from++; 
   to = Kn3, endp = &Kn3[32]; 
   while( to < endp ) *to++ = *from++; 
   return; 
   } 
 
static void D3des(from, into)    /* amateur theatrics */ 
unsigned char *from;            /* unsigned char[24] */ 
unsigned char *into;            /* unsigned char[24] */ 
{ 
   unsigned long swap, leftt[2], middl[2], right[2]; 
 
   scrunch(from, leftt); 
   scrunch(&from[8], middl); 
   scrunch(&from[16], right); 
   desfunc(leftt, KnL); 
   desfunc(middl, KnL); 
   desfunc(right, KnL); 
   swap = leftt[1]; 
   leftt[1] = middl[0]; 
   middl[0] = swap; 
   swap = middl[1]; 
   middl[1] = right[0]; 
   right[0] = swap; 
   desfunc(leftt, KnR); 
   desfunc(middl, KnR); 
   desfunc(right, KnR); 
   swap = leftt[1]; 
   leftt[1] = middl[0]; 
   middl[0] = swap; 
   swap = middl[1]; 
   middl[1] = right[0]; 
   right[0] = swap; 
   desfunc(leftt, Kn3); 
   desfunc(middl, Kn3); 
   desfunc(right, Kn3); 
   unscrun(leftt, into); 
   unscrun(middl, &into[8]); 
   unscrun(right, &into[16]); 
   return; 
   } 
 
void make3key(aptr, kptr) 
register char *aptr;                /* NULL-terminated   */ 
register unsigned char *kptr;        /* unsigned char[24] */ 
{ 
   register unsigned char *store; 
   register int first, i; 
   unsigned long savek[96]; 
 
   cp3key(savek); 
   des3key(Df_Key, EN0); 
   for( i = 0; i < 24; i++ ) kptr[i] = Df_Key[i]; 
   first = 1; 
   while( (*aptr != '\0') || first ) { 
       store = kptr; 
       for( i = 0; i < 24 && (*aptr != '\0'); i++ ) { 
           *store++ ^= *aptr & 0x7f; 
           *aptr++ = '\0'; 
           } 
       D3des(kptr, kptr); 
       first = 0; 
       } 
   use3key(savek); 
   return; 
   } 
 
#endif    /* D3_DES */ 
#endif    /* D2_DES */ 
 
/* Validation sets: 
* 
* Single-length key, single-length plaintext - 
* Key     : 0123 4567 89ab cdef 
* Plain : 0123 4567 89ab cde7 
* Cipher : c957 4425 6a5e d31d 
* 
* Double-length key, single-length plaintext - 
* Key     : 0123 4567 89ab cdef fedc ba98 7654 3210 
* Plain : 0123 4567 89ab cde7 
* Cipher : 7f1d 0a77 826b 8aff 
* 
* Double-length key, double-length plaintext - 
* Key     : 0123 4567 89ab cdef fedc ba98 7654 3210 
* Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff 
* Cipher : 27a0 8440 406a df60 278f 47cf 42d6 15d7 
* 
* Triple-length key, single-length plaintext - 
* Key     : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567 
* Plain : 0123 4567 89ab cde7 
* Cipher : de0b 7c06 ae5e 0ed5 
* 
* Triple-length key, double-length plaintext - 
* Key     : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567 
* Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff 
* Cipher : ad0d 1b30 ac17 cf07 0ed1 1c63 81e4 4de5 
* 
* d3des V5.0a rwo 9208.07 18:44 Graven Imagery 
**********************************************************************/

[招生]科锐逆向工程师培训46期预科班将于 2023年02月09日 正式开班

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雪    币: 419
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fixfix 活跃值 2009-5-20 22:08
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有没有ASM的
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mizhiwu 活跃值 2009-5-20 22:20
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为什么在我这显示有很多框框?
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kmlch 活跃值 2009-5-21 09:53
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楼主贴了好几个代码。谢谢。
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jxccy 活跃值 1 2009-5-21 10:17
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希望和大家分享一下,呵呵!
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jackozoo 活跃值 14 2009-6-3 19:04
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Thanks for share.
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