diff options
Diffstat (limited to 'common/d3des.c')
| -rw-r--r-- | common/d3des.c | 510 |
1 files changed, 0 insertions, 510 deletions
diff --git a/common/d3des.c b/common/d3des.c deleted file mode 100644 index 16ee7cde..00000000 --- a/common/d3des.c +++ /dev/null @@ -1,510 +0,0 @@ -/* - * This is D3DES (V5.09) by Richard Outerbridge with the double and - * triple-length support removed for use in VNC. Also the bytebit[] array - * has been reversed so that the most significant bit in each byte of the - * key is ignored, not the least significant. - * - * These changes are: - * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. - * - * This software is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - */ - -/* 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] = -{ - 01, 02, 04, 010, 020, 040, 0100, 0200 -}; - -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 -}; - -/* Thanks to James Gillogly & Phil Karn! */ -void rfbDesKey(unsigned char *key, int 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(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); - } - - rfbUseKey(dough); - return; -} - -void rfbCPKey(register unsigned long *into) -{ - register unsigned long *from, *endp; - - from = KnL, endp = &KnL[32]; - - while ( from < endp ) - { - *into++ = *from++; - } - - return; -} - -void rfbUseKey(register unsigned long *from) -{ - register unsigned long *to, *endp; - - to = KnL, endp = &KnL[32]; - - while ( to < endp ) - { - *to++ = *from++; - } - - return; -} - -void rfbDes(unsigned char *inblock, unsigned char *outblock) -{ - unsigned long work[2]; - - scrunch(inblock, work); - desfunc(work, KnL); - unscrun(work, outblock); - return; -} - -static void scrunch(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(register unsigned long *outof, register unsigned char *into) -{ - *into++ = (unsigned char)((*outof >> 24) & 0xffL); - *into++ = (unsigned char)((*outof >> 16) & 0xffL); - *into++ = (unsigned char)((*outof >> 8) & 0xffL); - *into++ = (unsigned char)( *outof++ & 0xffL); - *into++ = (unsigned char)((*outof >> 24) & 0xffL); - *into++ = (unsigned char)((*outof >> 16) & 0xffL); - *into++ = (unsigned char)((*outof >> 8) & 0xffL); - *into = (unsigned char)( *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(register unsigned long *block, register unsigned long *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; -} - -/* 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 - **********************************************************************/ |