| /* |
| * 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 "qemu/osdep.h" |
| #include "crypto/desrfb.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 const unsigned short bytebit[8] = { |
| 01, 02, 04, 010, 020, 040, 0100, 0200 }; |
| |
| static const 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 const 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 const unsigned char totrot[16] = { |
| 1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28 }; |
| |
| static const 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 deskey(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); |
| } |
| usekey(dough); |
| return; |
| } |
| |
| void usekey(register unsigned long *from) |
| { |
| register unsigned long *to, *endp; |
| |
| to = KnL, endp = &KnL[32]; |
| while( to < endp ) *to++ = *from++; |
| return; |
| } |
| |
| void des(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 const 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 const 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 const 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 const 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 const 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 const 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 const 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 const 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 |
| **********************************************************************/ |
