ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This is D3DES (V5.09) by Richard Outerbridge with the double and |
| 3 | * triple-length support removed for use in VNC. Also the bytebit[] array |
| 4 | * has been reversed so that the most significant bit in each byte of the |
| 5 | * key is ignored, not the least significant. |
| 6 | * |
| 7 | * These changes are: |
| 8 | * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. |
| 9 | * |
| 10 | * This software is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 13 | */ |
| 14 | |
| 15 | /* D3DES (V5.09) - |
| 16 | * |
| 17 | * A portable, public domain, version of the Data Encryption Standard. |
| 18 | * |
| 19 | * Written with Symantec's THINK (Lightspeed) C by Richard Outerbridge. |
| 20 | * Thanks to: Dan Hoey for his excellent Initial and Inverse permutation |
| 21 | * code; Jim Gillogly & Phil Karn for the DES key schedule code; Dennis |
| 22 | * Ferguson, Eric Young and Dana How for comparing notes; and Ray Lau, |
| 23 | * for humouring me on. |
| 24 | * |
| 25 | * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge. |
| 26 | * (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992. |
| 27 | */ |
| 28 | |
Peter Maydell | 42f7a44 | 2016-01-26 18:16:55 +0000 | [diff] [blame] | 29 | #include "qemu/osdep.h" |
Daniel P. Berrange | 9fd7246 | 2015-07-01 18:10:31 +0100 | [diff] [blame] | 30 | #include "crypto/desrfb.h" |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 31 | |
| 32 | static void scrunch(unsigned char *, unsigned long *); |
| 33 | static void unscrun(unsigned long *, unsigned char *); |
| 34 | static void desfunc(unsigned long *, unsigned long *); |
| 35 | static void cookey(unsigned long *); |
| 36 | |
| 37 | static unsigned long KnL[32] = { 0L }; |
| 38 | |
aurel32 | 5bfd552 | 2008-09-06 16:31:30 +0000 | [diff] [blame] | 39 | static const unsigned short bytebit[8] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 40 | 01, 02, 04, 010, 020, 040, 0100, 0200 }; |
| 41 | |
aurel32 | 5bfd552 | 2008-09-06 16:31:30 +0000 | [diff] [blame] | 42 | static const unsigned long bigbyte[24] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 43 | 0x800000L, 0x400000L, 0x200000L, 0x100000L, |
| 44 | 0x80000L, 0x40000L, 0x20000L, 0x10000L, |
| 45 | 0x8000L, 0x4000L, 0x2000L, 0x1000L, |
| 46 | 0x800L, 0x400L, 0x200L, 0x100L, |
| 47 | 0x80L, 0x40L, 0x20L, 0x10L, |
| 48 | 0x8L, 0x4L, 0x2L, 0x1L }; |
| 49 | |
| 50 | /* Use the key schedule specified in the Standard (ANSI X3.92-1981). */ |
| 51 | |
aurel32 | 5bfd552 | 2008-09-06 16:31:30 +0000 | [diff] [blame] | 52 | static const unsigned char pc1[56] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 53 | 56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17, |
| 54 | 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, |
| 55 | 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, |
| 56 | 13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3 }; |
| 57 | |
aurel32 | 5bfd552 | 2008-09-06 16:31:30 +0000 | [diff] [blame] | 58 | static const unsigned char totrot[16] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 59 | 1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28 }; |
| 60 | |
aurel32 | 5bfd552 | 2008-09-06 16:31:30 +0000 | [diff] [blame] | 61 | static const unsigned char pc2[48] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 62 | 13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9, |
| 63 | 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1, |
| 64 | 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47, |
| 65 | 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31 }; |
| 66 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 67 | /* Thanks to James Gillogly & Phil Karn! */ |
| 68 | void deskey(unsigned char *key, int edf) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 69 | { |
| 70 | register int i, j, l, m, n; |
| 71 | unsigned char pc1m[56], pcr[56]; |
| 72 | unsigned long kn[32]; |
| 73 | |
| 74 | for ( j = 0; j < 56; j++ ) { |
| 75 | l = pc1[j]; |
| 76 | m = l & 07; |
| 77 | pc1m[j] = (key[l >> 3] & bytebit[m]) ? 1 : 0; |
| 78 | } |
| 79 | for( i = 0; i < 16; i++ ) { |
| 80 | if( edf == DE1 ) m = (15 - i) << 1; |
| 81 | else m = i << 1; |
| 82 | n = m + 1; |
| 83 | kn[m] = kn[n] = 0L; |
| 84 | for( j = 0; j < 28; j++ ) { |
| 85 | l = j + totrot[i]; |
| 86 | if( l < 28 ) pcr[j] = pc1m[l]; |
| 87 | else pcr[j] = pc1m[l - 28]; |
| 88 | } |
| 89 | for( j = 28; j < 56; j++ ) { |
| 90 | l = j + totrot[i]; |
| 91 | if( l < 56 ) pcr[j] = pc1m[l]; |
| 92 | else pcr[j] = pc1m[l - 28]; |
| 93 | } |
| 94 | for( j = 0; j < 24; j++ ) { |
| 95 | if( pcr[pc2[j]] ) kn[m] |= bigbyte[j]; |
| 96 | if( pcr[pc2[j+24]] ) kn[n] |= bigbyte[j]; |
| 97 | } |
| 98 | } |
| 99 | cookey(kn); |
| 100 | return; |
| 101 | } |
| 102 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 103 | static void cookey(register unsigned long *raw1) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 104 | { |
| 105 | register unsigned long *cook, *raw0; |
| 106 | unsigned long dough[32]; |
| 107 | register int i; |
| 108 | |
| 109 | cook = dough; |
| 110 | for( i = 0; i < 16; i++, raw1++ ) { |
| 111 | raw0 = raw1++; |
| 112 | *cook = (*raw0 & 0x00fc0000L) << 6; |
| 113 | *cook |= (*raw0 & 0x00000fc0L) << 10; |
| 114 | *cook |= (*raw1 & 0x00fc0000L) >> 10; |
| 115 | *cook++ |= (*raw1 & 0x00000fc0L) >> 6; |
| 116 | *cook = (*raw0 & 0x0003f000L) << 12; |
| 117 | *cook |= (*raw0 & 0x0000003fL) << 16; |
| 118 | *cook |= (*raw1 & 0x0003f000L) >> 4; |
| 119 | *cook++ |= (*raw1 & 0x0000003fL); |
| 120 | } |
| 121 | usekey(dough); |
| 122 | return; |
| 123 | } |
| 124 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 125 | void usekey(register unsigned long *from) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 126 | { |
| 127 | register unsigned long *to, *endp; |
| 128 | |
| 129 | to = KnL, endp = &KnL[32]; |
| 130 | while( to < endp ) *to++ = *from++; |
| 131 | return; |
| 132 | } |
| 133 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 134 | void des(unsigned char *inblock, unsigned char *outblock) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 135 | { |
| 136 | unsigned long work[2]; |
| 137 | |
| 138 | scrunch(inblock, work); |
| 139 | desfunc(work, KnL); |
| 140 | unscrun(work, outblock); |
| 141 | return; |
| 142 | } |
| 143 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 144 | static void scrunch(register unsigned char *outof, register unsigned long *into) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 145 | { |
| 146 | *into = (*outof++ & 0xffL) << 24; |
| 147 | *into |= (*outof++ & 0xffL) << 16; |
| 148 | *into |= (*outof++ & 0xffL) << 8; |
| 149 | *into++ |= (*outof++ & 0xffL); |
| 150 | *into = (*outof++ & 0xffL) << 24; |
| 151 | *into |= (*outof++ & 0xffL) << 16; |
| 152 | *into |= (*outof++ & 0xffL) << 8; |
| 153 | *into |= (*outof & 0xffL); |
| 154 | return; |
| 155 | } |
| 156 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 157 | static void unscrun(register unsigned long *outof, register unsigned char *into) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 158 | { |
| 159 | *into++ = (unsigned char)((*outof >> 24) & 0xffL); |
| 160 | *into++ = (unsigned char)((*outof >> 16) & 0xffL); |
| 161 | *into++ = (unsigned char)((*outof >> 8) & 0xffL); |
| 162 | *into++ = (unsigned char)(*outof++ & 0xffL); |
| 163 | *into++ = (unsigned char)((*outof >> 24) & 0xffL); |
| 164 | *into++ = (unsigned char)((*outof >> 16) & 0xffL); |
| 165 | *into++ = (unsigned char)((*outof >> 8) & 0xffL); |
| 166 | *into = (unsigned char)(*outof & 0xffL); |
| 167 | return; |
| 168 | } |
| 169 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 170 | static const unsigned long SP1[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 171 | 0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L, |
| 172 | 0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L, |
| 173 | 0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L, |
| 174 | 0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L, |
| 175 | 0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L, |
| 176 | 0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L, |
| 177 | 0x00010004L, 0x01000004L, 0x01000004L, 0x00010004L, |
| 178 | 0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L, |
| 179 | 0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L, |
| 180 | 0x01010400L, 0x01000000L, 0x01000000L, 0x00000400L, |
| 181 | 0x01010004L, 0x00010000L, 0x00010400L, 0x01000004L, |
| 182 | 0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L, |
| 183 | 0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L, |
| 184 | 0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L, |
| 185 | 0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L, |
| 186 | 0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L }; |
| 187 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 188 | static const unsigned long SP2[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 189 | 0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L, |
| 190 | 0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L, |
| 191 | 0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L, |
| 192 | 0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L, |
| 193 | 0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L, |
| 194 | 0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L, |
| 195 | 0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L, |
| 196 | 0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L, |
| 197 | 0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L, |
| 198 | 0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L, |
| 199 | 0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L, |
| 200 | 0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L, |
| 201 | 0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L, |
| 202 | 0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L, |
| 203 | 0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L, |
| 204 | 0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L }; |
| 205 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 206 | static const unsigned long SP3[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 207 | 0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L, |
| 208 | 0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L, |
| 209 | 0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L, |
| 210 | 0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L, |
| 211 | 0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L, |
| 212 | 0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L, |
| 213 | 0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L, |
| 214 | 0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L, |
| 215 | 0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L, |
| 216 | 0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L, |
| 217 | 0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L, |
| 218 | 0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L, |
| 219 | 0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L, |
| 220 | 0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L, |
| 221 | 0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L, |
| 222 | 0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L }; |
| 223 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 224 | static const unsigned long SP4[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 225 | 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, |
| 226 | 0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L, |
| 227 | 0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L, |
| 228 | 0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L, |
| 229 | 0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L, |
| 230 | 0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L, |
| 231 | 0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L, |
| 232 | 0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L, |
| 233 | 0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L, |
| 234 | 0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L, |
| 235 | 0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L, |
| 236 | 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, |
| 237 | 0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L, |
| 238 | 0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L, |
| 239 | 0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L, |
| 240 | 0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L }; |
| 241 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 242 | static const unsigned long SP5[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 243 | 0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L, |
| 244 | 0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L, |
| 245 | 0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L, |
| 246 | 0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L, |
| 247 | 0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L, |
| 248 | 0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L, |
| 249 | 0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L, |
| 250 | 0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L, |
| 251 | 0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L, |
| 252 | 0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L, |
| 253 | 0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L, |
| 254 | 0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L, |
| 255 | 0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L, |
| 256 | 0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L, |
| 257 | 0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L, |
| 258 | 0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L }; |
| 259 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 260 | static const unsigned long SP6[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 261 | 0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L, |
| 262 | 0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L, |
| 263 | 0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L, |
| 264 | 0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L, |
| 265 | 0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L, |
| 266 | 0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L, |
| 267 | 0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L, |
| 268 | 0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L, |
| 269 | 0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L, |
| 270 | 0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L, |
| 271 | 0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L, |
| 272 | 0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L, |
| 273 | 0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L, |
| 274 | 0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L, |
| 275 | 0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L, |
| 276 | 0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L }; |
| 277 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 278 | static const unsigned long SP7[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 279 | 0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L, |
| 280 | 0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L, |
| 281 | 0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L, |
| 282 | 0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L, |
| 283 | 0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L, |
| 284 | 0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L, |
| 285 | 0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L, |
| 286 | 0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L, |
| 287 | 0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L, |
| 288 | 0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L, |
| 289 | 0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L, |
| 290 | 0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L, |
| 291 | 0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L, |
| 292 | 0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L, |
| 293 | 0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L, |
| 294 | 0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L }; |
| 295 | |
blueswir1 | 968467e | 2008-10-26 16:40:27 +0000 | [diff] [blame] | 296 | static const unsigned long SP8[64] = { |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 297 | 0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L, |
| 298 | 0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L, |
| 299 | 0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L, |
| 300 | 0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L, |
| 301 | 0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L, |
| 302 | 0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L, |
| 303 | 0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L, |
| 304 | 0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L, |
| 305 | 0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L, |
| 306 | 0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L, |
| 307 | 0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L, |
| 308 | 0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L, |
| 309 | 0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L, |
| 310 | 0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L, |
| 311 | 0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L, |
| 312 | 0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L }; |
| 313 | |
blueswir1 | 780e264 | 2008-10-27 19:49:12 +0000 | [diff] [blame] | 314 | static void desfunc(register unsigned long *block, register unsigned long *keys) |
ths | 6fd2740 | 2007-08-25 02:09:50 +0000 | [diff] [blame] | 315 | { |
| 316 | register unsigned long fval, work, right, leftt; |
| 317 | register int round; |
| 318 | |
| 319 | leftt = block[0]; |
| 320 | right = block[1]; |
| 321 | work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL; |
| 322 | right ^= work; |
| 323 | leftt ^= (work << 4); |
| 324 | work = ((leftt >> 16) ^ right) & 0x0000ffffL; |
| 325 | right ^= work; |
| 326 | leftt ^= (work << 16); |
| 327 | work = ((right >> 2) ^ leftt) & 0x33333333L; |
| 328 | leftt ^= work; |
| 329 | right ^= (work << 2); |
| 330 | work = ((right >> 8) ^ leftt) & 0x00ff00ffL; |
| 331 | leftt ^= work; |
| 332 | right ^= (work << 8); |
| 333 | right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL; |
| 334 | work = (leftt ^ right) & 0xaaaaaaaaL; |
| 335 | leftt ^= work; |
| 336 | right ^= work; |
| 337 | leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL; |
| 338 | |
| 339 | for( round = 0; round < 8; round++ ) { |
| 340 | work = (right << 28) | (right >> 4); |
| 341 | work ^= *keys++; |
| 342 | fval = SP7[ work & 0x3fL]; |
| 343 | fval |= SP5[(work >> 8) & 0x3fL]; |
| 344 | fval |= SP3[(work >> 16) & 0x3fL]; |
| 345 | fval |= SP1[(work >> 24) & 0x3fL]; |
| 346 | work = right ^ *keys++; |
| 347 | fval |= SP8[ work & 0x3fL]; |
| 348 | fval |= SP6[(work >> 8) & 0x3fL]; |
| 349 | fval |= SP4[(work >> 16) & 0x3fL]; |
| 350 | fval |= SP2[(work >> 24) & 0x3fL]; |
| 351 | leftt ^= fval; |
| 352 | work = (leftt << 28) | (leftt >> 4); |
| 353 | work ^= *keys++; |
| 354 | fval = SP7[ work & 0x3fL]; |
| 355 | fval |= SP5[(work >> 8) & 0x3fL]; |
| 356 | fval |= SP3[(work >> 16) & 0x3fL]; |
| 357 | fval |= SP1[(work >> 24) & 0x3fL]; |
| 358 | work = leftt ^ *keys++; |
| 359 | fval |= SP8[ work & 0x3fL]; |
| 360 | fval |= SP6[(work >> 8) & 0x3fL]; |
| 361 | fval |= SP4[(work >> 16) & 0x3fL]; |
| 362 | fval |= SP2[(work >> 24) & 0x3fL]; |
| 363 | right ^= fval; |
| 364 | } |
| 365 | |
| 366 | right = (right << 31) | (right >> 1); |
| 367 | work = (leftt ^ right) & 0xaaaaaaaaL; |
| 368 | leftt ^= work; |
| 369 | right ^= work; |
| 370 | leftt = (leftt << 31) | (leftt >> 1); |
| 371 | work = ((leftt >> 8) ^ right) & 0x00ff00ffL; |
| 372 | right ^= work; |
| 373 | leftt ^= (work << 8); |
| 374 | work = ((leftt >> 2) ^ right) & 0x33333333L; |
| 375 | right ^= work; |
| 376 | leftt ^= (work << 2); |
| 377 | work = ((right >> 16) ^ leftt) & 0x0000ffffL; |
| 378 | leftt ^= work; |
| 379 | right ^= (work << 16); |
| 380 | work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL; |
| 381 | leftt ^= work; |
| 382 | right ^= (work << 4); |
| 383 | *block++ = right; |
| 384 | *block = leftt; |
| 385 | return; |
| 386 | } |
| 387 | |
| 388 | /* Validation sets: |
| 389 | * |
| 390 | * Single-length key, single-length plaintext - |
| 391 | * Key : 0123 4567 89ab cdef |
| 392 | * Plain : 0123 4567 89ab cde7 |
| 393 | * Cipher : c957 4425 6a5e d31d |
| 394 | * |
| 395 | * Double-length key, single-length plaintext - |
| 396 | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 |
| 397 | * Plain : 0123 4567 89ab cde7 |
| 398 | * Cipher : 7f1d 0a77 826b 8aff |
| 399 | * |
| 400 | * Double-length key, double-length plaintext - |
| 401 | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 |
| 402 | * Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff |
| 403 | * Cipher : 27a0 8440 406a df60 278f 47cf 42d6 15d7 |
| 404 | * |
| 405 | * Triple-length key, single-length plaintext - |
| 406 | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567 |
| 407 | * Plain : 0123 4567 89ab cde7 |
| 408 | * Cipher : de0b 7c06 ae5e 0ed5 |
| 409 | * |
| 410 | * Triple-length key, double-length plaintext - |
| 411 | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567 |
| 412 | * Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff |
| 413 | * Cipher : ad0d 1b30 ac17 cf07 0ed1 1c63 81e4 4de5 |
| 414 | * |
| 415 | * d3des V5.0a rwo 9208.07 18:44 Graven Imagery |
| 416 | **********************************************************************/ |