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1.1 ! root 1: /* ! 2: --------------------------------------------------------------------------- ! 3: Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved. ! 4: ! 5: LICENSE TERMS ! 6: ! 7: The free distribution and use of this software in both source and binary ! 8: form is allowed (with or without changes) provided that: ! 9: ! 10: 1. distributions of this source code include the above copyright ! 11: notice, this list of conditions and the following disclaimer; ! 12: ! 13: 2. distributions in binary form include the above copyright ! 14: notice, this list of conditions and the following disclaimer ! 15: in the documentation and/or other associated materials; ! 16: ! 17: 3. the copyright holder's name is not used to endorse products ! 18: built using this software without specific written permission. ! 19: ! 20: ALTERNATIVELY, provided that this notice is retained in full, this product ! 21: may be distributed under the terms of the GNU General Public License (GPL), ! 22: in which case the provisions of the GPL apply INSTEAD OF those given above. ! 23: ! 24: DISCLAIMER ! 25: ! 26: This software is provided 'as is' with no explicit or implied warranties ! 27: in respect of its properties, including, but not limited to, correctness ! 28: and/or fitness for purpose. ! 29: --------------------------------------------------------------------------- ! 30: Issue 28/01/2004 ! 31: ! 32: */ ! 33: ! 34: #if defined(__cplusplus) ! 35: extern "C" ! 36: { ! 37: #endif ! 38: ! 39: #define DO_TABLES ! 40: ! 41: #include "aesopt.h" ! 42: ! 43: #if defined(FIXED_TABLES) ! 44: ! 45: #define sb_data(w) {\ ! 46: w(0x63), w(0x7c), w(0x77), w(0x7b), w(0xf2), w(0x6b), w(0x6f), w(0xc5),\ ! 47: w(0x30), w(0x01), w(0x67), w(0x2b), w(0xfe), w(0xd7), w(0xab), w(0x76),\ ! 48: w(0xca), w(0x82), w(0xc9), w(0x7d), w(0xfa), w(0x59), w(0x47), w(0xf0),\ ! 49: w(0xad), w(0xd4), w(0xa2), w(0xaf), w(0x9c), w(0xa4), w(0x72), w(0xc0),\ ! 50: w(0xb7), w(0xfd), w(0x93), w(0x26), w(0x36), w(0x3f), w(0xf7), w(0xcc),\ ! 51: w(0x34), w(0xa5), w(0xe5), w(0xf1), w(0x71), w(0xd8), w(0x31), w(0x15),\ ! 52: w(0x04), w(0xc7), w(0x23), w(0xc3), w(0x18), w(0x96), w(0x05), w(0x9a),\ ! 53: w(0x07), w(0x12), w(0x80), w(0xe2), w(0xeb), w(0x27), w(0xb2), w(0x75),\ ! 54: w(0x09), w(0x83), w(0x2c), w(0x1a), w(0x1b), w(0x6e), w(0x5a), w(0xa0),\ ! 55: w(0x52), w(0x3b), w(0xd6), w(0xb3), w(0x29), w(0xe3), w(0x2f), w(0x84),\ ! 56: w(0x53), w(0xd1), w(0x00), w(0xed), w(0x20), w(0xfc), w(0xb1), w(0x5b),\ ! 57: w(0x6a), w(0xcb), w(0xbe), w(0x39), w(0x4a), w(0x4c), w(0x58), w(0xcf),\ ! 58: w(0xd0), w(0xef), w(0xaa), w(0xfb), w(0x43), w(0x4d), w(0x33), w(0x85),\ ! 59: w(0x45), w(0xf9), w(0x02), w(0x7f), w(0x50), w(0x3c), w(0x9f), w(0xa8),\ ! 60: w(0x51), w(0xa3), w(0x40), w(0x8f), w(0x92), w(0x9d), w(0x38), w(0xf5),\ ! 61: w(0xbc), w(0xb6), w(0xda), w(0x21), w(0x10), w(0xff), w(0xf3), w(0xd2),\ ! 62: w(0xcd), w(0x0c), w(0x13), w(0xec), w(0x5f), w(0x97), w(0x44), w(0x17),\ ! 63: w(0xc4), w(0xa7), w(0x7e), w(0x3d), w(0x64), w(0x5d), w(0x19), w(0x73),\ ! 64: w(0x60), w(0x81), w(0x4f), w(0xdc), w(0x22), w(0x2a), w(0x90), w(0x88),\ ! 65: w(0x46), w(0xee), w(0xb8), w(0x14), w(0xde), w(0x5e), w(0x0b), w(0xdb),\ ! 66: w(0xe0), w(0x32), w(0x3a), w(0x0a), w(0x49), w(0x06), w(0x24), w(0x5c),\ ! 67: w(0xc2), w(0xd3), w(0xac), w(0x62), w(0x91), w(0x95), w(0xe4), w(0x79),\ ! 68: w(0xe7), w(0xc8), w(0x37), w(0x6d), w(0x8d), w(0xd5), w(0x4e), w(0xa9),\ ! 69: w(0x6c), w(0x56), w(0xf4), w(0xea), w(0x65), w(0x7a), w(0xae), w(0x08),\ ! 70: w(0xba), w(0x78), w(0x25), w(0x2e), w(0x1c), w(0xa6), w(0xb4), w(0xc6),\ ! 71: w(0xe8), w(0xdd), w(0x74), w(0x1f), w(0x4b), w(0xbd), w(0x8b), w(0x8a),\ ! 72: w(0x70), w(0x3e), w(0xb5), w(0x66), w(0x48), w(0x03), w(0xf6), w(0x0e),\ ! 73: w(0x61), w(0x35), w(0x57), w(0xb9), w(0x86), w(0xc1), w(0x1d), w(0x9e),\ ! 74: w(0xe1), w(0xf8), w(0x98), w(0x11), w(0x69), w(0xd9), w(0x8e), w(0x94),\ ! 75: w(0x9b), w(0x1e), w(0x87), w(0xe9), w(0xce), w(0x55), w(0x28), w(0xdf),\ ! 76: w(0x8c), w(0xa1), w(0x89), w(0x0d), w(0xbf), w(0xe6), w(0x42), w(0x68),\ ! 77: w(0x41), w(0x99), w(0x2d), w(0x0f), w(0xb0), w(0x54), w(0xbb), w(0x16) } ! 78: ! 79: #define isb_data(w) {\ ! 80: w(0x52), w(0x09), w(0x6a), w(0xd5), w(0x30), w(0x36), w(0xa5), w(0x38),\ ! 81: w(0xbf), w(0x40), w(0xa3), w(0x9e), w(0x81), w(0xf3), w(0xd7), w(0xfb),\ ! 82: w(0x7c), w(0xe3), w(0x39), w(0x82), w(0x9b), w(0x2f), w(0xff), w(0x87),\ ! 83: w(0x34), w(0x8e), w(0x43), w(0x44), w(0xc4), w(0xde), w(0xe9), w(0xcb),\ ! 84: w(0x54), w(0x7b), w(0x94), w(0x32), w(0xa6), w(0xc2), w(0x23), w(0x3d),\ ! 85: w(0xee), w(0x4c), w(0x95), w(0x0b), w(0x42), w(0xfa), w(0xc3), w(0x4e),\ ! 86: w(0x08), w(0x2e), w(0xa1), w(0x66), w(0x28), w(0xd9), w(0x24), w(0xb2),\ ! 87: w(0x76), w(0x5b), w(0xa2), w(0x49), w(0x6d), w(0x8b), w(0xd1), w(0x25),\ ! 88: w(0x72), w(0xf8), w(0xf6), w(0x64), w(0x86), w(0x68), w(0x98), w(0x16),\ ! 89: w(0xd4), w(0xa4), w(0x5c), w(0xcc), w(0x5d), w(0x65), w(0xb6), w(0x92),\ ! 90: w(0x6c), w(0x70), w(0x48), w(0x50), w(0xfd), w(0xed), w(0xb9), w(0xda),\ ! 91: w(0x5e), w(0x15), w(0x46), w(0x57), w(0xa7), w(0x8d), w(0x9d), w(0x84),\ ! 92: w(0x90), w(0xd8), w(0xab), w(0x00), w(0x8c), w(0xbc), w(0xd3), w(0x0a),\ ! 93: w(0xf7), w(0xe4), w(0x58), w(0x05), w(0xb8), w(0xb3), w(0x45), w(0x06),\ ! 94: w(0xd0), w(0x2c), w(0x1e), w(0x8f), w(0xca), w(0x3f), w(0x0f), w(0x02),\ ! 95: w(0xc1), w(0xaf), w(0xbd), w(0x03), w(0x01), w(0x13), w(0x8a), w(0x6b),\ ! 96: w(0x3a), w(0x91), w(0x11), w(0x41), w(0x4f), w(0x67), w(0xdc), w(0xea),\ ! 97: w(0x97), w(0xf2), w(0xcf), w(0xce), w(0xf0), w(0xb4), w(0xe6), w(0x73),\ ! 98: w(0x96), w(0xac), w(0x74), w(0x22), w(0xe7), w(0xad), w(0x35), w(0x85),\ ! 99: w(0xe2), w(0xf9), w(0x37), w(0xe8), w(0x1c), w(0x75), w(0xdf), w(0x6e),\ ! 100: w(0x47), w(0xf1), w(0x1a), w(0x71), w(0x1d), w(0x29), w(0xc5), w(0x89),\ ! 101: w(0x6f), w(0xb7), w(0x62), w(0x0e), w(0xaa), w(0x18), w(0xbe), w(0x1b),\ ! 102: w(0xfc), w(0x56), w(0x3e), w(0x4b), w(0xc6), w(0xd2), w(0x79), w(0x20),\ ! 103: w(0x9a), w(0xdb), w(0xc0), w(0xfe), w(0x78), w(0xcd), w(0x5a), w(0xf4),\ ! 104: w(0x1f), w(0xdd), w(0xa8), w(0x33), w(0x88), w(0x07), w(0xc7), w(0x31),\ ! 105: w(0xb1), w(0x12), w(0x10), w(0x59), w(0x27), w(0x80), w(0xec), w(0x5f),\ ! 106: w(0x60), w(0x51), w(0x7f), w(0xa9), w(0x19), w(0xb5), w(0x4a), w(0x0d),\ ! 107: w(0x2d), w(0xe5), w(0x7a), w(0x9f), w(0x93), w(0xc9), w(0x9c), w(0xef),\ ! 108: w(0xa0), w(0xe0), w(0x3b), w(0x4d), w(0xae), w(0x2a), w(0xf5), w(0xb0),\ ! 109: w(0xc8), w(0xeb), w(0xbb), w(0x3c), w(0x83), w(0x53), w(0x99), w(0x61),\ ! 110: w(0x17), w(0x2b), w(0x04), w(0x7e), w(0xba), w(0x77), w(0xd6), w(0x26),\ ! 111: w(0xe1), w(0x69), w(0x14), w(0x63), w(0x55), w(0x21), w(0x0c), w(0x7d) } ! 112: ! 113: #define mm_data(w) {\ ! 114: w(0x00), w(0x01), w(0x02), w(0x03), w(0x04), w(0x05), w(0x06), w(0x07),\ ! 115: w(0x08), w(0x09), w(0x0a), w(0x0b), w(0x0c), w(0x0d), w(0x0e), w(0x0f),\ ! 116: w(0x10), w(0x11), w(0x12), w(0x13), w(0x14), w(0x15), w(0x16), w(0x17),\ ! 117: w(0x18), w(0x19), w(0x1a), w(0x1b), w(0x1c), w(0x1d), w(0x1e), w(0x1f),\ ! 118: w(0x20), w(0x21), w(0x22), w(0x23), w(0x24), w(0x25), w(0x26), w(0x27),\ ! 119: w(0x28), w(0x29), w(0x2a), w(0x2b), w(0x2c), w(0x2d), w(0x2e), w(0x2f),\ ! 120: w(0x30), w(0x31), w(0x32), w(0x33), w(0x34), w(0x35), w(0x36), w(0x37),\ ! 121: w(0x38), w(0x39), w(0x3a), w(0x3b), w(0x3c), w(0x3d), w(0x3e), w(0x3f),\ ! 122: w(0x40), w(0x41), w(0x42), w(0x43), w(0x44), w(0x45), w(0x46), w(0x47),\ ! 123: w(0x48), w(0x49), w(0x4a), w(0x4b), w(0x4c), w(0x4d), w(0x4e), w(0x4f),\ ! 124: w(0x50), w(0x51), w(0x52), w(0x53), w(0x54), w(0x55), w(0x56), w(0x57),\ ! 125: w(0x58), w(0x59), w(0x5a), w(0x5b), w(0x5c), w(0x5d), w(0x5e), w(0x5f),\ ! 126: w(0x60), w(0x61), w(0x62), w(0x63), w(0x64), w(0x65), w(0x66), w(0x67),\ ! 127: w(0x68), w(0x69), w(0x6a), w(0x6b), w(0x6c), w(0x6d), w(0x6e), w(0x6f),\ ! 128: w(0x70), w(0x71), w(0x72), w(0x73), w(0x74), w(0x75), w(0x76), w(0x77),\ ! 129: w(0x78), w(0x79), w(0x7a), w(0x7b), w(0x7c), w(0x7d), w(0x7e), w(0x7f),\ ! 130: w(0x80), w(0x81), w(0x82), w(0x83), w(0x84), w(0x85), w(0x86), w(0x87),\ ! 131: w(0x88), w(0x89), w(0x8a), w(0x8b), w(0x8c), w(0x8d), w(0x8e), w(0x8f),\ ! 132: w(0x90), w(0x91), w(0x92), w(0x93), w(0x94), w(0x95), w(0x96), w(0x97),\ ! 133: w(0x98), w(0x99), w(0x9a), w(0x9b), w(0x9c), w(0x9d), w(0x9e), w(0x9f),\ ! 134: w(0xa0), w(0xa1), w(0xa2), w(0xa3), w(0xa4), w(0xa5), w(0xa6), w(0xa7),\ ! 135: w(0xa8), w(0xa9), w(0xaa), w(0xab), w(0xac), w(0xad), w(0xae), w(0xaf),\ ! 136: w(0xb0), w(0xb1), w(0xb2), w(0xb3), w(0xb4), w(0xb5), w(0xb6), w(0xb7),\ ! 137: w(0xb8), w(0xb9), w(0xba), w(0xbb), w(0xbc), w(0xbd), w(0xbe), w(0xbf),\ ! 138: w(0xc0), w(0xc1), w(0xc2), w(0xc3), w(0xc4), w(0xc5), w(0xc6), w(0xc7),\ ! 139: w(0xc8), w(0xc9), w(0xca), w(0xcb), w(0xcc), w(0xcd), w(0xce), w(0xcf),\ ! 140: w(0xd0), w(0xd1), w(0xd2), w(0xd3), w(0xd4), w(0xd5), w(0xd6), w(0xd7),\ ! 141: w(0xd8), w(0xd9), w(0xda), w(0xdb), w(0xdc), w(0xdd), w(0xde), w(0xdf),\ ! 142: w(0xe0), w(0xe1), w(0xe2), w(0xe3), w(0xe4), w(0xe5), w(0xe6), w(0xe7),\ ! 143: w(0xe8), w(0xe9), w(0xea), w(0xeb), w(0xec), w(0xed), w(0xee), w(0xef),\ ! 144: w(0xf0), w(0xf1), w(0xf2), w(0xf3), w(0xf4), w(0xf5), w(0xf6), w(0xf7),\ ! 145: w(0xf8), w(0xf9), w(0xfa), w(0xfb), w(0xfc), w(0xfd), w(0xfe), w(0xff) } ! 146: ! 147: #define rc_data(w) {\ ! 148: w(0x01), w(0x02), w(0x04), w(0x08), w(0x10),w(0x20), w(0x40), w(0x80),\ ! 149: w(0x1b), w(0x36) } ! 150: ! 151: #define h0(x) (x) ! 152: ! 153: #define w0(p) bytes2word(p, 0, 0, 0) ! 154: #define w1(p) bytes2word(0, p, 0, 0) ! 155: #define w2(p) bytes2word(0, 0, p, 0) ! 156: #define w3(p) bytes2word(0, 0, 0, p) ! 157: ! 158: #define u0(p) bytes2word(f2(p), p, p, f3(p)) ! 159: #define u1(p) bytes2word(f3(p), f2(p), p, p) ! 160: #define u2(p) bytes2word(p, f3(p), f2(p), p) ! 161: #define u3(p) bytes2word(p, p, f3(p), f2(p)) ! 162: ! 163: #define v0(p) bytes2word(fe(p), f9(p), fd(p), fb(p)) ! 164: #define v1(p) bytes2word(fb(p), fe(p), f9(p), fd(p)) ! 165: #define v2(p) bytes2word(fd(p), fb(p), fe(p), f9(p)) ! 166: #define v3(p) bytes2word(f9(p), fd(p), fb(p), fe(p)) ! 167: ! 168: #endif ! 169: ! 170: #if defined(FIXED_TABLES) || !defined(FF_TABLES) ! 171: ! 172: #define f2(x) ((x<<1) ^ (((x>>7) & 1) * WPOLY)) ! 173: #define f4(x) ((x<<2) ^ (((x>>6) & 1) * WPOLY) ^ (((x>>6) & 2) * WPOLY)) ! 174: #define f8(x) ((x<<3) ^ (((x>>5) & 1) * WPOLY) ^ (((x>>5) & 2) * WPOLY) \ ! 175: ^ (((x>>5) & 4) * WPOLY)) ! 176: #define f3(x) (f2(x) ^ x) ! 177: #define f9(x) (f8(x) ^ x) ! 178: #define fb(x) (f8(x) ^ f2(x) ^ x) ! 179: #define fd(x) (f8(x) ^ f4(x) ^ x) ! 180: #define fe(x) (f8(x) ^ f4(x) ^ f2(x)) ! 181: ! 182: #else ! 183: ! 184: #define f2(x) ((x) ? pow[log[x] + 0x19] : 0) ! 185: #define f3(x) ((x) ? pow[log[x] + 0x01] : 0) ! 186: #define f9(x) ((x) ? pow[log[x] + 0xc7] : 0) ! 187: #define fb(x) ((x) ? pow[log[x] + 0x68] : 0) ! 188: #define fd(x) ((x) ? pow[log[x] + 0xee] : 0) ! 189: #define fe(x) ((x) ? pow[log[x] + 0xdf] : 0) ! 190: #define fi(x) ((x) ? pow[ 255 - log[x]] : 0) ! 191: ! 192: #endif ! 193: ! 194: #include "aestab.h" ! 195: ! 196: #if defined(FIXED_TABLES) ! 197: ! 198: /* implemented in case of wrong call for fixed tables */ ! 199: ! 200: void gen_tabs(void) ! 201: { ! 202: } ! 203: ! 204: #else /* dynamic table generation */ ! 205: ! 206: #if !defined(FF_TABLES) ! 207: ! 208: /* Generate the tables for the dynamic table option ! 209: ! 210: It will generally be sensible to use tables to compute finite ! 211: field multiplies and inverses but where memory is scarse this ! 212: code might sometimes be better. But it only has effect during ! 213: initialisation so its pretty unimportant in overall terms. ! 214: */ ! 215: ! 216: /* return 2 ^ (n - 1) where n is the bit number of the highest bit ! 217: set in x with x in the range 1 < x < 0x00000200. This form is ! 218: used so that locals within fi can be bytes rather than words ! 219: */ ! 220: ! 221: static aes_08t hibit(const aes_32t x) ! 222: { aes_08t r = (aes_08t)((x >> 1) | (x >> 2)); ! 223: ! 224: r |= (r >> 2); ! 225: r |= (r >> 4); ! 226: return (r + 1) >> 1; ! 227: } ! 228: ! 229: /* return the inverse of the finite field element x */ ! 230: ! 231: static aes_08t fi(const aes_08t x) ! 232: { aes_08t p1 = x, p2 = BPOLY, n1 = hibit(x), n2 = 0x80, v1 = 1, v2 = 0; ! 233: ! 234: if(x < 2) return x; ! 235: ! 236: for(;;) ! 237: { ! 238: if(!n1) return v1; ! 239: ! 240: while(n2 >= n1) ! 241: { ! 242: n2 /= n1; p2 ^= p1 * n2; v2 ^= v1 * n2; n2 = hibit(p2); ! 243: } ! 244: ! 245: if(!n2) return v2; ! 246: ! 247: while(n1 >= n2) ! 248: { ! 249: n1 /= n2; p1 ^= p2 * n1; v1 ^= v2 * n1; n1 = hibit(p1); ! 250: } ! 251: } ! 252: } ! 253: ! 254: #endif ! 255: ! 256: /* The forward and inverse affine transformations used in the S-box */ ! 257: ! 258: #define fwd_affine(x) \ ! 259: (w = (aes_32t)x, w ^= (w<<1)^(w<<2)^(w<<3)^(w<<4), 0x63^(aes_08t)(w^(w>>8))) ! 260: ! 261: #define inv_affine(x) \ ! 262: (w = (aes_32t)x, w = (w<<1)^(w<<3)^(w<<6), 0x05^(aes_08t)(w^(w>>8))) ! 263: ! 264: static int init = 0; ! 265: ! 266: void gen_tabs(void) ! 267: { aes_32t i, w; ! 268: ! 269: #if defined(FF_TABLES) ! 270: ! 271: aes_08t pow[512], log[256]; ! 272: ! 273: if(init) return; ! 274: /* log and power tables for GF(2^8) finite field with ! 275: WPOLY as modular polynomial - the simplest primitive ! 276: root is 0x03, used here to generate the tables ! 277: */ ! 278: ! 279: i = 0; w = 1; ! 280: do ! 281: { ! 282: pow[i] = (aes_08t)w; ! 283: pow[i + 255] = (aes_08t)w; ! 284: log[w] = (aes_08t)i++; ! 285: w ^= (w << 1) ^ (w & 0x80 ? WPOLY : 0); ! 286: } ! 287: while (w != 1); ! 288: ! 289: #else ! 290: if(init) return; ! 291: #endif ! 292: ! 293: for(i = 0, w = 1; i < RC_LENGTH; ++i) ! 294: { ! 295: t_set(r,c)[i] = bytes2word(w, 0, 0, 0); ! 296: w = f2(w); ! 297: } ! 298: ! 299: for(i = 0; i < 256; ++i) ! 300: { aes_08t b; ! 301: ! 302: b = fwd_affine(fi((aes_08t)i)); ! 303: w = bytes2word(f2(b), b, b, f3(b)); ! 304: ! 305: #if defined( SBX_SET ) ! 306: t_set(s,box)[i] = b; ! 307: #endif ! 308: ! 309: #if defined( FT1_SET ) /* tables for a normal encryption round */ ! 310: t_set(f,n)[i] = w; ! 311: #endif ! 312: #if defined( FT4_SET ) ! 313: t_set(f,n)[0][i] = w; ! 314: t_set(f,n)[1][i] = upr(w,1); ! 315: t_set(f,n)[2][i] = upr(w,2); ! 316: t_set(f,n)[3][i] = upr(w,3); ! 317: #endif ! 318: w = bytes2word(b, 0, 0, 0); ! 319: ! 320: #if defined( FL1_SET ) /* tables for last encryption round (may also */ ! 321: t_set(f,l)[i] = w; /* be used in the key schedule) */ ! 322: #endif ! 323: #if defined( FL4_SET ) ! 324: t_set(f,l)[0][i] = w; ! 325: t_set(f,l)[1][i] = upr(w,1); ! 326: t_set(f,l)[2][i] = upr(w,2); ! 327: t_set(f,l)[3][i] = upr(w,3); ! 328: #endif ! 329: ! 330: #if defined( LS1_SET ) /* table for key schedule if t_set(f,l) above is */ ! 331: t_set(l,s)[i] = w; /* not of the required form */ ! 332: #endif ! 333: #if defined( LS4_SET ) ! 334: t_set(l,s)[0][i] = w; ! 335: t_set(l,s)[1][i] = upr(w,1); ! 336: t_set(l,s)[2][i] = upr(w,2); ! 337: t_set(l,s)[3][i] = upr(w,3); ! 338: #endif ! 339: ! 340: b = fi(inv_affine((aes_08t)i)); ! 341: w = bytes2word(fe(b), f9(b), fd(b), fb(b)); ! 342: ! 343: #if defined( IM1_SET ) /* tables for the inverse mix column operation */ ! 344: t_set(i,m)[b] = w; ! 345: #endif ! 346: #if defined( IM4_SET ) ! 347: t_set(i,m)[0][b] = w; ! 348: t_set(i,m)[1][b] = upr(w,1); ! 349: t_set(i,m)[2][b] = upr(w,2); ! 350: t_set(i,m)[3][b] = upr(w,3); ! 351: #endif ! 352: ! 353: #if defined( ISB_SET ) ! 354: t_set(i,box)[i] = b; ! 355: #endif ! 356: #if defined( IT1_SET ) /* tables for a normal decryption round */ ! 357: t_set(i,n)[i] = w; ! 358: #endif ! 359: #if defined( IT4_SET ) ! 360: t_set(i,n)[0][i] = w; ! 361: t_set(i,n)[1][i] = upr(w,1); ! 362: t_set(i,n)[2][i] = upr(w,2); ! 363: t_set(i,n)[3][i] = upr(w,3); ! 364: #endif ! 365: w = bytes2word(b, 0, 0, 0); ! 366: #if defined( IL1_SET ) /* tables for last decryption round */ ! 367: t_set(i,l)[i] = w; ! 368: #endif ! 369: #if defined( IL4_SET ) ! 370: t_set(i,l)[0][i] = w; ! 371: t_set(i,l)[1][i] = upr(w,1); ! 372: t_set(i,l)[2][i] = upr(w,2); ! 373: t_set(i,l)[3][i] = upr(w,3); ! 374: #endif ! 375: } ! 376: init = 1; ! 377: } ! 378: ! 379: #endif ! 380: ! 381: #if defined(__cplusplus) ! 382: } ! 383: #endif ! 384:
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