| 1c1af145 |
1 | /* |
| 2 | * aes.c - implementation of AES / Rijndael |
| 3 | * |
| 4 | * AES is a flexible algorithm as regards endianness: it has no |
| 5 | * inherent preference as to which way round you should form words |
| 6 | * from the input byte stream. It talks endlessly of four-byte |
| 7 | * _vectors_, but never of 32-bit _words_ - there's no 32-bit |
| 8 | * addition at all, which would force an endianness by means of |
| 9 | * which way the carries went. So it would be possible to write a |
| 10 | * working AES that read words big-endian, and another working one |
| 11 | * that read them little-endian, just by computing a different set |
| 12 | * of tables - with no speed drop. |
| 13 | * |
| 14 | * It's therefore tempting to do just that, and remove the overhead |
| 15 | * of GET_32BIT_MSB_FIRST() et al, allowing every system to use its |
| 16 | * own endianness-native code; but I decided not to, partly for |
| 17 | * ease of testing, and mostly because I like the flexibility that |
| 18 | * allows you to encrypt a non-word-aligned block of memory (which |
| 19 | * many systems would stop being able to do if I went the |
| 20 | * endianness-dependent route). |
| 21 | * |
| 22 | * This implementation reads and stores words big-endian, but |
| 23 | * that's a minor implementation detail. By flipping the endianness |
| 24 | * of everything in the E0..E3, D0..D3 tables, and substituting |
| 25 | * GET_32BIT_LSB_FIRST for GET_32BIT_MSB_FIRST, I could create an |
| 26 | * implementation that worked internally little-endian and gave the |
| 27 | * same answers at the same speed. |
| 28 | */ |
| 29 | |
| 30 | #include <assert.h> |
| 31 | #include <stdlib.h> |
| 32 | |
| 33 | #include "ssh.h" |
| 34 | |
| 35 | #define MAX_NR 14 /* max no of rounds */ |
| 36 | #define MAX_NK 8 /* max no of words in input key */ |
| 37 | #define MAX_NB 8 /* max no of words in cipher blk */ |
| 38 | |
| 39 | #define mulby2(x) ( ((x&0x7F) << 1) ^ (x & 0x80 ? 0x1B : 0) ) |
| 40 | |
| 41 | typedef struct AESContext AESContext; |
| 42 | |
| 43 | struct AESContext { |
| 44 | word32 keysched[(MAX_NR + 1) * MAX_NB]; |
| 45 | word32 invkeysched[(MAX_NR + 1) * MAX_NB]; |
| 46 | void (*encrypt) (AESContext * ctx, word32 * block); |
| 47 | void (*decrypt) (AESContext * ctx, word32 * block); |
| 48 | word32 iv[MAX_NB]; |
| 49 | int Nb, Nr; |
| 50 | }; |
| 51 | |
| 52 | static const unsigned char Sbox[256] = { |
| 53 | 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, |
| 54 | 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, |
| 55 | 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, |
| 56 | 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, |
| 57 | 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, |
| 58 | 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, |
| 59 | 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, |
| 60 | 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, |
| 61 | 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, |
| 62 | 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, |
| 63 | 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, |
| 64 | 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, |
| 65 | 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, |
| 66 | 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, |
| 67 | 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, |
| 68 | 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, |
| 69 | 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, |
| 70 | 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, |
| 71 | 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, |
| 72 | 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, |
| 73 | 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, |
| 74 | 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, |
| 75 | 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, |
| 76 | 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, |
| 77 | 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, |
| 78 | 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, |
| 79 | 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, |
| 80 | 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, |
| 81 | 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, |
| 82 | 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, |
| 83 | 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, |
| 84 | 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 |
| 85 | }; |
| 86 | |
| 87 | static const unsigned char Sboxinv[256] = { |
| 88 | 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, |
| 89 | 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, |
| 90 | 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, |
| 91 | 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, |
| 92 | 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, |
| 93 | 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e, |
| 94 | 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, |
| 95 | 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, |
| 96 | 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, |
| 97 | 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, |
| 98 | 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, |
| 99 | 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, |
| 100 | 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, |
| 101 | 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06, |
| 102 | 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, |
| 103 | 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, |
| 104 | 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, |
| 105 | 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73, |
| 106 | 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, |
| 107 | 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, |
| 108 | 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, |
| 109 | 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, |
| 110 | 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, |
| 111 | 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4, |
| 112 | 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, |
| 113 | 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, |
| 114 | 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, |
| 115 | 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, |
| 116 | 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, |
| 117 | 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, |
| 118 | 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, |
| 119 | 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d |
| 120 | }; |
| 121 | |
| 122 | static const word32 E0[256] = { |
| 123 | 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d, |
| 124 | 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554, |
| 125 | 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d, |
| 126 | 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a, |
| 127 | 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87, |
| 128 | 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b, |
| 129 | 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea, |
| 130 | 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b, |
| 131 | 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a, |
| 132 | 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f, |
| 133 | 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108, |
| 134 | 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f, |
| 135 | 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e, |
| 136 | 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5, |
| 137 | 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d, |
| 138 | 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f, |
| 139 | 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e, |
| 140 | 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb, |
| 141 | 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce, |
| 142 | 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497, |
| 143 | 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c, |
| 144 | 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed, |
| 145 | 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b, |
| 146 | 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a, |
| 147 | 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16, |
| 148 | 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594, |
| 149 | 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81, |
| 150 | 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3, |
| 151 | 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a, |
| 152 | 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504, |
| 153 | 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163, |
| 154 | 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d, |
| 155 | 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f, |
| 156 | 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739, |
| 157 | 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47, |
| 158 | 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395, |
| 159 | 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f, |
| 160 | 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883, |
| 161 | 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c, |
| 162 | 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76, |
| 163 | 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e, |
| 164 | 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4, |
| 165 | 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6, |
| 166 | 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b, |
| 167 | 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7, |
| 168 | 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0, |
| 169 | 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25, |
| 170 | 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818, |
| 171 | 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72, |
| 172 | 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651, |
| 173 | 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21, |
| 174 | 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85, |
| 175 | 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa, |
| 176 | 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12, |
| 177 | 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0, |
| 178 | 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9, |
| 179 | 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133, |
| 180 | 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7, |
| 181 | 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920, |
| 182 | 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a, |
| 183 | 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17, |
| 184 | 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8, |
| 185 | 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11, |
| 186 | 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a, |
| 187 | }; |
| 188 | static const word32 E1[256] = { |
| 189 | 0xa5c66363, 0x84f87c7c, 0x99ee7777, 0x8df67b7b, |
| 190 | 0x0dfff2f2, 0xbdd66b6b, 0xb1de6f6f, 0x5491c5c5, |
| 191 | 0x50603030, 0x03020101, 0xa9ce6767, 0x7d562b2b, |
| 192 | 0x19e7fefe, 0x62b5d7d7, 0xe64dabab, 0x9aec7676, |
| 193 | 0x458fcaca, 0x9d1f8282, 0x4089c9c9, 0x87fa7d7d, |
| 194 | 0x15effafa, 0xebb25959, 0xc98e4747, 0x0bfbf0f0, |
| 195 | 0xec41adad, 0x67b3d4d4, 0xfd5fa2a2, 0xea45afaf, |
| 196 | 0xbf239c9c, 0xf753a4a4, 0x96e47272, 0x5b9bc0c0, |
| 197 | 0xc275b7b7, 0x1ce1fdfd, 0xae3d9393, 0x6a4c2626, |
| 198 | 0x5a6c3636, 0x417e3f3f, 0x02f5f7f7, 0x4f83cccc, |
| 199 | 0x5c683434, 0xf451a5a5, 0x34d1e5e5, 0x08f9f1f1, |
| 200 | 0x93e27171, 0x73abd8d8, 0x53623131, 0x3f2a1515, |
| 201 | 0x0c080404, 0x5295c7c7, 0x65462323, 0x5e9dc3c3, |
| 202 | 0x28301818, 0xa1379696, 0x0f0a0505, 0xb52f9a9a, |
| 203 | 0x090e0707, 0x36241212, 0x9b1b8080, 0x3ddfe2e2, |
| 204 | 0x26cdebeb, 0x694e2727, 0xcd7fb2b2, 0x9fea7575, |
| 205 | 0x1b120909, 0x9e1d8383, 0x74582c2c, 0x2e341a1a, |
| 206 | 0x2d361b1b, 0xb2dc6e6e, 0xeeb45a5a, 0xfb5ba0a0, |
| 207 | 0xf6a45252, 0x4d763b3b, 0x61b7d6d6, 0xce7db3b3, |
| 208 | 0x7b522929, 0x3edde3e3, 0x715e2f2f, 0x97138484, |
| 209 | 0xf5a65353, 0x68b9d1d1, 0x00000000, 0x2cc1eded, |
| 210 | 0x60402020, 0x1fe3fcfc, 0xc879b1b1, 0xedb65b5b, |
| 211 | 0xbed46a6a, 0x468dcbcb, 0xd967bebe, 0x4b723939, |
| 212 | 0xde944a4a, 0xd4984c4c, 0xe8b05858, 0x4a85cfcf, |
| 213 | 0x6bbbd0d0, 0x2ac5efef, 0xe54faaaa, 0x16edfbfb, |
| 214 | 0xc5864343, 0xd79a4d4d, 0x55663333, 0x94118585, |
| 215 | 0xcf8a4545, 0x10e9f9f9, 0x06040202, 0x81fe7f7f, |
| 216 | 0xf0a05050, 0x44783c3c, 0xba259f9f, 0xe34ba8a8, |
| 217 | 0xf3a25151, 0xfe5da3a3, 0xc0804040, 0x8a058f8f, |
| 218 | 0xad3f9292, 0xbc219d9d, 0x48703838, 0x04f1f5f5, |
| 219 | 0xdf63bcbc, 0xc177b6b6, 0x75afdada, 0x63422121, |
| 220 | 0x30201010, 0x1ae5ffff, 0x0efdf3f3, 0x6dbfd2d2, |
| 221 | 0x4c81cdcd, 0x14180c0c, 0x35261313, 0x2fc3ecec, |
| 222 | 0xe1be5f5f, 0xa2359797, 0xcc884444, 0x392e1717, |
| 223 | 0x5793c4c4, 0xf255a7a7, 0x82fc7e7e, 0x477a3d3d, |
| 224 | 0xacc86464, 0xe7ba5d5d, 0x2b321919, 0x95e67373, |
| 225 | 0xa0c06060, 0x98198181, 0xd19e4f4f, 0x7fa3dcdc, |
| 226 | 0x66442222, 0x7e542a2a, 0xab3b9090, 0x830b8888, |
| 227 | 0xca8c4646, 0x29c7eeee, 0xd36bb8b8, 0x3c281414, |
| 228 | 0x79a7dede, 0xe2bc5e5e, 0x1d160b0b, 0x76addbdb, |
| 229 | 0x3bdbe0e0, 0x56643232, 0x4e743a3a, 0x1e140a0a, |
| 230 | 0xdb924949, 0x0a0c0606, 0x6c482424, 0xe4b85c5c, |
| 231 | 0x5d9fc2c2, 0x6ebdd3d3, 0xef43acac, 0xa6c46262, |
| 232 | 0xa8399191, 0xa4319595, 0x37d3e4e4, 0x8bf27979, |
| 233 | 0x32d5e7e7, 0x438bc8c8, 0x596e3737, 0xb7da6d6d, |
| 234 | 0x8c018d8d, 0x64b1d5d5, 0xd29c4e4e, 0xe049a9a9, |
| 235 | 0xb4d86c6c, 0xfaac5656, 0x07f3f4f4, 0x25cfeaea, |
| 236 | 0xafca6565, 0x8ef47a7a, 0xe947aeae, 0x18100808, |
| 237 | 0xd56fbaba, 0x88f07878, 0x6f4a2525, 0x725c2e2e, |
| 238 | 0x24381c1c, 0xf157a6a6, 0xc773b4b4, 0x5197c6c6, |
| 239 | 0x23cbe8e8, 0x7ca1dddd, 0x9ce87474, 0x213e1f1f, |
| 240 | 0xdd964b4b, 0xdc61bdbd, 0x860d8b8b, 0x850f8a8a, |
| 241 | 0x90e07070, 0x427c3e3e, 0xc471b5b5, 0xaacc6666, |
| 242 | 0xd8904848, 0x05060303, 0x01f7f6f6, 0x121c0e0e, |
| 243 | 0xa3c26161, 0x5f6a3535, 0xf9ae5757, 0xd069b9b9, |
| 244 | 0x91178686, 0x5899c1c1, 0x273a1d1d, 0xb9279e9e, |
| 245 | 0x38d9e1e1, 0x13ebf8f8, 0xb32b9898, 0x33221111, |
| 246 | 0xbbd26969, 0x70a9d9d9, 0x89078e8e, 0xa7339494, |
| 247 | 0xb62d9b9b, 0x223c1e1e, 0x92158787, 0x20c9e9e9, |
| 248 | 0x4987cece, 0xffaa5555, 0x78502828, 0x7aa5dfdf, |
| 249 | 0x8f038c8c, 0xf859a1a1, 0x80098989, 0x171a0d0d, |
| 250 | 0xda65bfbf, 0x31d7e6e6, 0xc6844242, 0xb8d06868, |
| 251 | 0xc3824141, 0xb0299999, 0x775a2d2d, 0x111e0f0f, |
| 252 | 0xcb7bb0b0, 0xfca85454, 0xd66dbbbb, 0x3a2c1616, |
| 253 | }; |
| 254 | static const word32 E2[256] = { |
| 255 | 0x63a5c663, 0x7c84f87c, 0x7799ee77, 0x7b8df67b, |
| 256 | 0xf20dfff2, 0x6bbdd66b, 0x6fb1de6f, 0xc55491c5, |
| 257 | 0x30506030, 0x01030201, 0x67a9ce67, 0x2b7d562b, |
| 258 | 0xfe19e7fe, 0xd762b5d7, 0xabe64dab, 0x769aec76, |
| 259 | 0xca458fca, 0x829d1f82, 0xc94089c9, 0x7d87fa7d, |
| 260 | 0xfa15effa, 0x59ebb259, 0x47c98e47, 0xf00bfbf0, |
| 261 | 0xadec41ad, 0xd467b3d4, 0xa2fd5fa2, 0xafea45af, |
| 262 | 0x9cbf239c, 0xa4f753a4, 0x7296e472, 0xc05b9bc0, |
| 263 | 0xb7c275b7, 0xfd1ce1fd, 0x93ae3d93, 0x266a4c26, |
| 264 | 0x365a6c36, 0x3f417e3f, 0xf702f5f7, 0xcc4f83cc, |
| 265 | 0x345c6834, 0xa5f451a5, 0xe534d1e5, 0xf108f9f1, |
| 266 | 0x7193e271, 0xd873abd8, 0x31536231, 0x153f2a15, |
| 267 | 0x040c0804, 0xc75295c7, 0x23654623, 0xc35e9dc3, |
| 268 | 0x18283018, 0x96a13796, 0x050f0a05, 0x9ab52f9a, |
| 269 | 0x07090e07, 0x12362412, 0x809b1b80, 0xe23ddfe2, |
| 270 | 0xeb26cdeb, 0x27694e27, 0xb2cd7fb2, 0x759fea75, |
| 271 | 0x091b1209, 0x839e1d83, 0x2c74582c, 0x1a2e341a, |
| 272 | 0x1b2d361b, 0x6eb2dc6e, 0x5aeeb45a, 0xa0fb5ba0, |
| 273 | 0x52f6a452, 0x3b4d763b, 0xd661b7d6, 0xb3ce7db3, |
| 274 | 0x297b5229, 0xe33edde3, 0x2f715e2f, 0x84971384, |
| 275 | 0x53f5a653, 0xd168b9d1, 0x00000000, 0xed2cc1ed, |
| 276 | 0x20604020, 0xfc1fe3fc, 0xb1c879b1, 0x5bedb65b, |
| 277 | 0x6abed46a, 0xcb468dcb, 0xbed967be, 0x394b7239, |
| 278 | 0x4ade944a, 0x4cd4984c, 0x58e8b058, 0xcf4a85cf, |
| 279 | 0xd06bbbd0, 0xef2ac5ef, 0xaae54faa, 0xfb16edfb, |
| 280 | 0x43c58643, 0x4dd79a4d, 0x33556633, 0x85941185, |
| 281 | 0x45cf8a45, 0xf910e9f9, 0x02060402, 0x7f81fe7f, |
| 282 | 0x50f0a050, 0x3c44783c, 0x9fba259f, 0xa8e34ba8, |
| 283 | 0x51f3a251, 0xa3fe5da3, 0x40c08040, 0x8f8a058f, |
| 284 | 0x92ad3f92, 0x9dbc219d, 0x38487038, 0xf504f1f5, |
| 285 | 0xbcdf63bc, 0xb6c177b6, 0xda75afda, 0x21634221, |
| 286 | 0x10302010, 0xff1ae5ff, 0xf30efdf3, 0xd26dbfd2, |
| 287 | 0xcd4c81cd, 0x0c14180c, 0x13352613, 0xec2fc3ec, |
| 288 | 0x5fe1be5f, 0x97a23597, 0x44cc8844, 0x17392e17, |
| 289 | 0xc45793c4, 0xa7f255a7, 0x7e82fc7e, 0x3d477a3d, |
| 290 | 0x64acc864, 0x5de7ba5d, 0x192b3219, 0x7395e673, |
| 291 | 0x60a0c060, 0x81981981, 0x4fd19e4f, 0xdc7fa3dc, |
| 292 | 0x22664422, 0x2a7e542a, 0x90ab3b90, 0x88830b88, |
| 293 | 0x46ca8c46, 0xee29c7ee, 0xb8d36bb8, 0x143c2814, |
| 294 | 0xde79a7de, 0x5ee2bc5e, 0x0b1d160b, 0xdb76addb, |
| 295 | 0xe03bdbe0, 0x32566432, 0x3a4e743a, 0x0a1e140a, |
| 296 | 0x49db9249, 0x060a0c06, 0x246c4824, 0x5ce4b85c, |
| 297 | 0xc25d9fc2, 0xd36ebdd3, 0xacef43ac, 0x62a6c462, |
| 298 | 0x91a83991, 0x95a43195, 0xe437d3e4, 0x798bf279, |
| 299 | 0xe732d5e7, 0xc8438bc8, 0x37596e37, 0x6db7da6d, |
| 300 | 0x8d8c018d, 0xd564b1d5, 0x4ed29c4e, 0xa9e049a9, |
| 301 | 0x6cb4d86c, 0x56faac56, 0xf407f3f4, 0xea25cfea, |
| 302 | 0x65afca65, 0x7a8ef47a, 0xaee947ae, 0x08181008, |
| 303 | 0xbad56fba, 0x7888f078, 0x256f4a25, 0x2e725c2e, |
| 304 | 0x1c24381c, 0xa6f157a6, 0xb4c773b4, 0xc65197c6, |
| 305 | 0xe823cbe8, 0xdd7ca1dd, 0x749ce874, 0x1f213e1f, |
| 306 | 0x4bdd964b, 0xbddc61bd, 0x8b860d8b, 0x8a850f8a, |
| 307 | 0x7090e070, 0x3e427c3e, 0xb5c471b5, 0x66aacc66, |
| 308 | 0x48d89048, 0x03050603, 0xf601f7f6, 0x0e121c0e, |
| 309 | 0x61a3c261, 0x355f6a35, 0x57f9ae57, 0xb9d069b9, |
| 310 | 0x86911786, 0xc15899c1, 0x1d273a1d, 0x9eb9279e, |
| 311 | 0xe138d9e1, 0xf813ebf8, 0x98b32b98, 0x11332211, |
| 312 | 0x69bbd269, 0xd970a9d9, 0x8e89078e, 0x94a73394, |
| 313 | 0x9bb62d9b, 0x1e223c1e, 0x87921587, 0xe920c9e9, |
| 314 | 0xce4987ce, 0x55ffaa55, 0x28785028, 0xdf7aa5df, |
| 315 | 0x8c8f038c, 0xa1f859a1, 0x89800989, 0x0d171a0d, |
| 316 | 0xbfda65bf, 0xe631d7e6, 0x42c68442, 0x68b8d068, |
| 317 | 0x41c38241, 0x99b02999, 0x2d775a2d, 0x0f111e0f, |
| 318 | 0xb0cb7bb0, 0x54fca854, 0xbbd66dbb, 0x163a2c16, |
| 319 | }; |
| 320 | static const word32 E3[256] = { |
| 321 | 0x6363a5c6, 0x7c7c84f8, 0x777799ee, 0x7b7b8df6, |
| 322 | 0xf2f20dff, 0x6b6bbdd6, 0x6f6fb1de, 0xc5c55491, |
| 323 | 0x30305060, 0x01010302, 0x6767a9ce, 0x2b2b7d56, |
| 324 | 0xfefe19e7, 0xd7d762b5, 0xababe64d, 0x76769aec, |
| 325 | 0xcaca458f, 0x82829d1f, 0xc9c94089, 0x7d7d87fa, |
| 326 | 0xfafa15ef, 0x5959ebb2, 0x4747c98e, 0xf0f00bfb, |
| 327 | 0xadadec41, 0xd4d467b3, 0xa2a2fd5f, 0xafafea45, |
| 328 | 0x9c9cbf23, 0xa4a4f753, 0x727296e4, 0xc0c05b9b, |
| 329 | 0xb7b7c275, 0xfdfd1ce1, 0x9393ae3d, 0x26266a4c, |
| 330 | 0x36365a6c, 0x3f3f417e, 0xf7f702f5, 0xcccc4f83, |
| 331 | 0x34345c68, 0xa5a5f451, 0xe5e534d1, 0xf1f108f9, |
| 332 | 0x717193e2, 0xd8d873ab, 0x31315362, 0x15153f2a, |
| 333 | 0x04040c08, 0xc7c75295, 0x23236546, 0xc3c35e9d, |
| 334 | 0x18182830, 0x9696a137, 0x05050f0a, 0x9a9ab52f, |
| 335 | 0x0707090e, 0x12123624, 0x80809b1b, 0xe2e23ddf, |
| 336 | 0xebeb26cd, 0x2727694e, 0xb2b2cd7f, 0x75759fea, |
| 337 | 0x09091b12, 0x83839e1d, 0x2c2c7458, 0x1a1a2e34, |
| 338 | 0x1b1b2d36, 0x6e6eb2dc, 0x5a5aeeb4, 0xa0a0fb5b, |
| 339 | 0x5252f6a4, 0x3b3b4d76, 0xd6d661b7, 0xb3b3ce7d, |
| 340 | 0x29297b52, 0xe3e33edd, 0x2f2f715e, 0x84849713, |
| 341 | 0x5353f5a6, 0xd1d168b9, 0x00000000, 0xeded2cc1, |
| 342 | 0x20206040, 0xfcfc1fe3, 0xb1b1c879, 0x5b5bedb6, |
| 343 | 0x6a6abed4, 0xcbcb468d, 0xbebed967, 0x39394b72, |
| 344 | 0x4a4ade94, 0x4c4cd498, 0x5858e8b0, 0xcfcf4a85, |
| 345 | 0xd0d06bbb, 0xefef2ac5, 0xaaaae54f, 0xfbfb16ed, |
| 346 | 0x4343c586, 0x4d4dd79a, 0x33335566, 0x85859411, |
| 347 | 0x4545cf8a, 0xf9f910e9, 0x02020604, 0x7f7f81fe, |
| 348 | 0x5050f0a0, 0x3c3c4478, 0x9f9fba25, 0xa8a8e34b, |
| 349 | 0x5151f3a2, 0xa3a3fe5d, 0x4040c080, 0x8f8f8a05, |
| 350 | 0x9292ad3f, 0x9d9dbc21, 0x38384870, 0xf5f504f1, |
| 351 | 0xbcbcdf63, 0xb6b6c177, 0xdada75af, 0x21216342, |
| 352 | 0x10103020, 0xffff1ae5, 0xf3f30efd, 0xd2d26dbf, |
| 353 | 0xcdcd4c81, 0x0c0c1418, 0x13133526, 0xecec2fc3, |
| 354 | 0x5f5fe1be, 0x9797a235, 0x4444cc88, 0x1717392e, |
| 355 | 0xc4c45793, 0xa7a7f255, 0x7e7e82fc, 0x3d3d477a, |
| 356 | 0x6464acc8, 0x5d5de7ba, 0x19192b32, 0x737395e6, |
| 357 | 0x6060a0c0, 0x81819819, 0x4f4fd19e, 0xdcdc7fa3, |
| 358 | 0x22226644, 0x2a2a7e54, 0x9090ab3b, 0x8888830b, |
| 359 | 0x4646ca8c, 0xeeee29c7, 0xb8b8d36b, 0x14143c28, |
| 360 | 0xdede79a7, 0x5e5ee2bc, 0x0b0b1d16, 0xdbdb76ad, |
| 361 | 0xe0e03bdb, 0x32325664, 0x3a3a4e74, 0x0a0a1e14, |
| 362 | 0x4949db92, 0x06060a0c, 0x24246c48, 0x5c5ce4b8, |
| 363 | 0xc2c25d9f, 0xd3d36ebd, 0xacacef43, 0x6262a6c4, |
| 364 | 0x9191a839, 0x9595a431, 0xe4e437d3, 0x79798bf2, |
| 365 | 0xe7e732d5, 0xc8c8438b, 0x3737596e, 0x6d6db7da, |
| 366 | 0x8d8d8c01, 0xd5d564b1, 0x4e4ed29c, 0xa9a9e049, |
| 367 | 0x6c6cb4d8, 0x5656faac, 0xf4f407f3, 0xeaea25cf, |
| 368 | 0x6565afca, 0x7a7a8ef4, 0xaeaee947, 0x08081810, |
| 369 | 0xbabad56f, 0x787888f0, 0x25256f4a, 0x2e2e725c, |
| 370 | 0x1c1c2438, 0xa6a6f157, 0xb4b4c773, 0xc6c65197, |
| 371 | 0xe8e823cb, 0xdddd7ca1, 0x74749ce8, 0x1f1f213e, |
| 372 | 0x4b4bdd96, 0xbdbddc61, 0x8b8b860d, 0x8a8a850f, |
| 373 | 0x707090e0, 0x3e3e427c, 0xb5b5c471, 0x6666aacc, |
| 374 | 0x4848d890, 0x03030506, 0xf6f601f7, 0x0e0e121c, |
| 375 | 0x6161a3c2, 0x35355f6a, 0x5757f9ae, 0xb9b9d069, |
| 376 | 0x86869117, 0xc1c15899, 0x1d1d273a, 0x9e9eb927, |
| 377 | 0xe1e138d9, 0xf8f813eb, 0x9898b32b, 0x11113322, |
| 378 | 0x6969bbd2, 0xd9d970a9, 0x8e8e8907, 0x9494a733, |
| 379 | 0x9b9bb62d, 0x1e1e223c, 0x87879215, 0xe9e920c9, |
| 380 | 0xcece4987, 0x5555ffaa, 0x28287850, 0xdfdf7aa5, |
| 381 | 0x8c8c8f03, 0xa1a1f859, 0x89898009, 0x0d0d171a, |
| 382 | 0xbfbfda65, 0xe6e631d7, 0x4242c684, 0x6868b8d0, |
| 383 | 0x4141c382, 0x9999b029, 0x2d2d775a, 0x0f0f111e, |
| 384 | 0xb0b0cb7b, 0x5454fca8, 0xbbbbd66d, 0x16163a2c, |
| 385 | }; |
| 386 | static const word32 D0[256] = { |
| 387 | 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96, |
| 388 | 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393, |
| 389 | 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25, |
| 390 | 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f, |
| 391 | 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1, |
| 392 | 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6, |
| 393 | 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da, |
| 394 | 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844, |
| 395 | 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd, |
| 396 | 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4, |
| 397 | 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45, |
| 398 | 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94, |
| 399 | 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7, |
| 400 | 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a, |
| 401 | 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5, |
| 402 | 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c, |
| 403 | 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1, |
| 404 | 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a, |
| 405 | 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75, |
| 406 | 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051, |
| 407 | 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46, |
| 408 | 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff, |
| 409 | 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77, |
| 410 | 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb, |
| 411 | 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000, |
| 412 | 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e, |
| 413 | 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927, |
| 414 | 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a, |
| 415 | 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e, |
| 416 | 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16, |
| 417 | 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d, |
| 418 | 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8, |
| 419 | 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd, |
| 420 | 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34, |
| 421 | 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163, |
| 422 | 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120, |
| 423 | 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d, |
| 424 | 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0, |
| 425 | 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422, |
| 426 | 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef, |
| 427 | 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36, |
| 428 | 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4, |
| 429 | 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662, |
| 430 | 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5, |
| 431 | 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3, |
| 432 | 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b, |
| 433 | 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8, |
| 434 | 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6, |
| 435 | 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6, |
| 436 | 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0, |
| 437 | 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815, |
| 438 | 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f, |
| 439 | 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df, |
| 440 | 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f, |
| 441 | 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e, |
| 442 | 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713, |
| 443 | 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89, |
| 444 | 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c, |
| 445 | 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf, |
| 446 | 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86, |
| 447 | 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f, |
| 448 | 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541, |
| 449 | 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190, |
| 450 | 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742, |
| 451 | }; |
| 452 | static const word32 D1[256] = { |
| 453 | 0x5051f4a7, 0x537e4165, 0xc31a17a4, 0x963a275e, |
| 454 | 0xcb3bab6b, 0xf11f9d45, 0xabacfa58, 0x934be303, |
| 455 | 0x552030fa, 0xf6ad766d, 0x9188cc76, 0x25f5024c, |
| 456 | 0xfc4fe5d7, 0xd7c52acb, 0x80263544, 0x8fb562a3, |
| 457 | 0x49deb15a, 0x6725ba1b, 0x9845ea0e, 0xe15dfec0, |
| 458 | 0x02c32f75, 0x12814cf0, 0xa38d4697, 0xc66bd3f9, |
| 459 | 0xe7038f5f, 0x9515929c, 0xebbf6d7a, 0xda955259, |
| 460 | 0x2dd4be83, 0xd3587421, 0x2949e069, 0x448ec9c8, |
| 461 | 0x6a75c289, 0x78f48e79, 0x6b99583e, 0xdd27b971, |
| 462 | 0xb6bee14f, 0x17f088ad, 0x66c920ac, 0xb47dce3a, |
| 463 | 0x1863df4a, 0x82e51a31, 0x60975133, 0x4562537f, |
| 464 | 0xe0b16477, 0x84bb6bae, 0x1cfe81a0, 0x94f9082b, |
| 465 | 0x58704868, 0x198f45fd, 0x8794de6c, 0xb7527bf8, |
| 466 | 0x23ab73d3, 0xe2724b02, 0x57e31f8f, 0x2a6655ab, |
| 467 | 0x07b2eb28, 0x032fb5c2, 0x9a86c57b, 0xa5d33708, |
| 468 | 0xf2302887, 0xb223bfa5, 0xba02036a, 0x5ced1682, |
| 469 | 0x2b8acf1c, 0x92a779b4, 0xf0f307f2, 0xa14e69e2, |
| 470 | 0xcd65daf4, 0xd50605be, 0x1fd13462, 0x8ac4a6fe, |
| 471 | 0x9d342e53, 0xa0a2f355, 0x32058ae1, 0x75a4f6eb, |
| 472 | 0x390b83ec, 0xaa4060ef, 0x065e719f, 0x51bd6e10, |
| 473 | 0xf93e218a, 0x3d96dd06, 0xaedd3e05, 0x464de6bd, |
| 474 | 0xb591548d, 0x0571c45d, 0x6f0406d4, 0xff605015, |
| 475 | 0x241998fb, 0x97d6bde9, 0xcc894043, 0x7767d99e, |
| 476 | 0xbdb0e842, 0x8807898b, 0x38e7195b, 0xdb79c8ee, |
| 477 | 0x47a17c0a, 0xe97c420f, 0xc9f8841e, 0x00000000, |
| 478 | 0x83098086, 0x48322bed, 0xac1e1170, 0x4e6c5a72, |
| 479 | 0xfbfd0eff, 0x560f8538, 0x1e3daed5, 0x27362d39, |
| 480 | 0x640a0fd9, 0x21685ca6, 0xd19b5b54, 0x3a24362e, |
| 481 | 0xb10c0a67, 0x0f9357e7, 0xd2b4ee96, 0x9e1b9b91, |
| 482 | 0x4f80c0c5, 0xa261dc20, 0x695a774b, 0x161c121a, |
| 483 | 0x0ae293ba, 0xe5c0a02a, 0x433c22e0, 0x1d121b17, |
| 484 | 0x0b0e090d, 0xadf28bc7, 0xb92db6a8, 0xc8141ea9, |
| 485 | 0x8557f119, 0x4caf7507, 0xbbee99dd, 0xfda37f60, |
| 486 | 0x9ff70126, 0xbc5c72f5, 0xc544663b, 0x345bfb7e, |
| 487 | 0x768b4329, 0xdccb23c6, 0x68b6edfc, 0x63b8e4f1, |
| 488 | 0xcad731dc, 0x10426385, 0x40139722, 0x2084c611, |
| 489 | 0x7d854a24, 0xf8d2bb3d, 0x11aef932, 0x6dc729a1, |
| 490 | 0x4b1d9e2f, 0xf3dcb230, 0xec0d8652, 0xd077c1e3, |
| 491 | 0x6c2bb316, 0x99a970b9, 0xfa119448, 0x2247e964, |
| 492 | 0xc4a8fc8c, 0x1aa0f03f, 0xd8567d2c, 0xef223390, |
| 493 | 0xc787494e, 0xc1d938d1, 0xfe8ccaa2, 0x3698d40b, |
| 494 | 0xcfa6f581, 0x28a57ade, 0x26dab78e, 0xa43fadbf, |
| 495 | 0xe42c3a9d, 0x0d507892, 0x9b6a5fcc, 0x62547e46, |
| 496 | 0xc2f68d13, 0xe890d8b8, 0x5e2e39f7, 0xf582c3af, |
| 497 | 0xbe9f5d80, 0x7c69d093, 0xa96fd52d, 0xb3cf2512, |
| 498 | 0x3bc8ac99, 0xa710187d, 0x6ee89c63, 0x7bdb3bbb, |
| 499 | 0x09cd2678, 0xf46e5918, 0x01ec9ab7, 0xa8834f9a, |
| 500 | 0x65e6956e, 0x7eaaffe6, 0x0821bccf, 0xe6ef15e8, |
| 501 | 0xd9bae79b, 0xce4a6f36, 0xd4ea9f09, 0xd629b07c, |
| 502 | 0xaf31a4b2, 0x312a3f23, 0x30c6a594, 0xc035a266, |
| 503 | 0x37744ebc, 0xa6fc82ca, 0xb0e090d0, 0x1533a7d8, |
| 504 | 0x4af10498, 0xf741ecda, 0x0e7fcd50, 0x2f1791f6, |
| 505 | 0x8d764dd6, 0x4d43efb0, 0x54ccaa4d, 0xdfe49604, |
| 506 | 0xe39ed1b5, 0x1b4c6a88, 0xb8c12c1f, 0x7f466551, |
| 507 | 0x049d5eea, 0x5d018c35, 0x73fa8774, 0x2efb0b41, |
| 508 | 0x5ab3671d, 0x5292dbd2, 0x33e91056, 0x136dd647, |
| 509 | 0x8c9ad761, 0x7a37a10c, 0x8e59f814, 0x89eb133c, |
| 510 | 0xeecea927, 0x35b761c9, 0xede11ce5, 0x3c7a47b1, |
| 511 | 0x599cd2df, 0x3f55f273, 0x791814ce, 0xbf73c737, |
| 512 | 0xea53f7cd, 0x5b5ffdaa, 0x14df3d6f, 0x867844db, |
| 513 | 0x81caaff3, 0x3eb968c4, 0x2c382434, 0x5fc2a340, |
| 514 | 0x72161dc3, 0x0cbce225, 0x8b283c49, 0x41ff0d95, |
| 515 | 0x7139a801, 0xde080cb3, 0x9cd8b4e4, 0x906456c1, |
| 516 | 0x617bcb84, 0x70d532b6, 0x74486c5c, 0x42d0b857, |
| 517 | }; |
| 518 | static const word32 D2[256] = { |
| 519 | 0xa75051f4, 0x65537e41, 0xa4c31a17, 0x5e963a27, |
| 520 | 0x6bcb3bab, 0x45f11f9d, 0x58abacfa, 0x03934be3, |
| 521 | 0xfa552030, 0x6df6ad76, 0x769188cc, 0x4c25f502, |
| 522 | 0xd7fc4fe5, 0xcbd7c52a, 0x44802635, 0xa38fb562, |
| 523 | 0x5a49deb1, 0x1b6725ba, 0x0e9845ea, 0xc0e15dfe, |
| 524 | 0x7502c32f, 0xf012814c, 0x97a38d46, 0xf9c66bd3, |
| 525 | 0x5fe7038f, 0x9c951592, 0x7aebbf6d, 0x59da9552, |
| 526 | 0x832dd4be, 0x21d35874, 0x692949e0, 0xc8448ec9, |
| 527 | 0x896a75c2, 0x7978f48e, 0x3e6b9958, 0x71dd27b9, |
| 528 | 0x4fb6bee1, 0xad17f088, 0xac66c920, 0x3ab47dce, |
| 529 | 0x4a1863df, 0x3182e51a, 0x33609751, 0x7f456253, |
| 530 | 0x77e0b164, 0xae84bb6b, 0xa01cfe81, 0x2b94f908, |
| 531 | 0x68587048, 0xfd198f45, 0x6c8794de, 0xf8b7527b, |
| 532 | 0xd323ab73, 0x02e2724b, 0x8f57e31f, 0xab2a6655, |
| 533 | 0x2807b2eb, 0xc2032fb5, 0x7b9a86c5, 0x08a5d337, |
| 534 | 0x87f23028, 0xa5b223bf, 0x6aba0203, 0x825ced16, |
| 535 | 0x1c2b8acf, 0xb492a779, 0xf2f0f307, 0xe2a14e69, |
| 536 | 0xf4cd65da, 0xbed50605, 0x621fd134, 0xfe8ac4a6, |
| 537 | 0x539d342e, 0x55a0a2f3, 0xe132058a, 0xeb75a4f6, |
| 538 | 0xec390b83, 0xefaa4060, 0x9f065e71, 0x1051bd6e, |
| 539 | 0x8af93e21, 0x063d96dd, 0x05aedd3e, 0xbd464de6, |
| 540 | 0x8db59154, 0x5d0571c4, 0xd46f0406, 0x15ff6050, |
| 541 | 0xfb241998, 0xe997d6bd, 0x43cc8940, 0x9e7767d9, |
| 542 | 0x42bdb0e8, 0x8b880789, 0x5b38e719, 0xeedb79c8, |
| 543 | 0x0a47a17c, 0x0fe97c42, 0x1ec9f884, 0x00000000, |
| 544 | 0x86830980, 0xed48322b, 0x70ac1e11, 0x724e6c5a, |
| 545 | 0xfffbfd0e, 0x38560f85, 0xd51e3dae, 0x3927362d, |
| 546 | 0xd9640a0f, 0xa621685c, 0x54d19b5b, 0x2e3a2436, |
| 547 | 0x67b10c0a, 0xe70f9357, 0x96d2b4ee, 0x919e1b9b, |
| 548 | 0xc54f80c0, 0x20a261dc, 0x4b695a77, 0x1a161c12, |
| 549 | 0xba0ae293, 0x2ae5c0a0, 0xe0433c22, 0x171d121b, |
| 550 | 0x0d0b0e09, 0xc7adf28b, 0xa8b92db6, 0xa9c8141e, |
| 551 | 0x198557f1, 0x074caf75, 0xddbbee99, 0x60fda37f, |
| 552 | 0x269ff701, 0xf5bc5c72, 0x3bc54466, 0x7e345bfb, |
| 553 | 0x29768b43, 0xc6dccb23, 0xfc68b6ed, 0xf163b8e4, |
| 554 | 0xdccad731, 0x85104263, 0x22401397, 0x112084c6, |
| 555 | 0x247d854a, 0x3df8d2bb, 0x3211aef9, 0xa16dc729, |
| 556 | 0x2f4b1d9e, 0x30f3dcb2, 0x52ec0d86, 0xe3d077c1, |
| 557 | 0x166c2bb3, 0xb999a970, 0x48fa1194, 0x642247e9, |
| 558 | 0x8cc4a8fc, 0x3f1aa0f0, 0x2cd8567d, 0x90ef2233, |
| 559 | 0x4ec78749, 0xd1c1d938, 0xa2fe8cca, 0x0b3698d4, |
| 560 | 0x81cfa6f5, 0xde28a57a, 0x8e26dab7, 0xbfa43fad, |
| 561 | 0x9de42c3a, 0x920d5078, 0xcc9b6a5f, 0x4662547e, |
| 562 | 0x13c2f68d, 0xb8e890d8, 0xf75e2e39, 0xaff582c3, |
| 563 | 0x80be9f5d, 0x937c69d0, 0x2da96fd5, 0x12b3cf25, |
| 564 | 0x993bc8ac, 0x7da71018, 0x636ee89c, 0xbb7bdb3b, |
| 565 | 0x7809cd26, 0x18f46e59, 0xb701ec9a, 0x9aa8834f, |
| 566 | 0x6e65e695, 0xe67eaaff, 0xcf0821bc, 0xe8e6ef15, |
| 567 | 0x9bd9bae7, 0x36ce4a6f, 0x09d4ea9f, 0x7cd629b0, |
| 568 | 0xb2af31a4, 0x23312a3f, 0x9430c6a5, 0x66c035a2, |
| 569 | 0xbc37744e, 0xcaa6fc82, 0xd0b0e090, 0xd81533a7, |
| 570 | 0x984af104, 0xdaf741ec, 0x500e7fcd, 0xf62f1791, |
| 571 | 0xd68d764d, 0xb04d43ef, 0x4d54ccaa, 0x04dfe496, |
| 572 | 0xb5e39ed1, 0x881b4c6a, 0x1fb8c12c, 0x517f4665, |
| 573 | 0xea049d5e, 0x355d018c, 0x7473fa87, 0x412efb0b, |
| 574 | 0x1d5ab367, 0xd25292db, 0x5633e910, 0x47136dd6, |
| 575 | 0x618c9ad7, 0x0c7a37a1, 0x148e59f8, 0x3c89eb13, |
| 576 | 0x27eecea9, 0xc935b761, 0xe5ede11c, 0xb13c7a47, |
| 577 | 0xdf599cd2, 0x733f55f2, 0xce791814, 0x37bf73c7, |
| 578 | 0xcdea53f7, 0xaa5b5ffd, 0x6f14df3d, 0xdb867844, |
| 579 | 0xf381caaf, 0xc43eb968, 0x342c3824, 0x405fc2a3, |
| 580 | 0xc372161d, 0x250cbce2, 0x498b283c, 0x9541ff0d, |
| 581 | 0x017139a8, 0xb3de080c, 0xe49cd8b4, 0xc1906456, |
| 582 | 0x84617bcb, 0xb670d532, 0x5c74486c, 0x5742d0b8, |
| 583 | }; |
| 584 | static const word32 D3[256] = { |
| 585 | 0xf4a75051, 0x4165537e, 0x17a4c31a, 0x275e963a, |
| 586 | 0xab6bcb3b, 0x9d45f11f, 0xfa58abac, 0xe303934b, |
| 587 | 0x30fa5520, 0x766df6ad, 0xcc769188, 0x024c25f5, |
| 588 | 0xe5d7fc4f, 0x2acbd7c5, 0x35448026, 0x62a38fb5, |
| 589 | 0xb15a49de, 0xba1b6725, 0xea0e9845, 0xfec0e15d, |
| 590 | 0x2f7502c3, 0x4cf01281, 0x4697a38d, 0xd3f9c66b, |
| 591 | 0x8f5fe703, 0x929c9515, 0x6d7aebbf, 0x5259da95, |
| 592 | 0xbe832dd4, 0x7421d358, 0xe0692949, 0xc9c8448e, |
| 593 | 0xc2896a75, 0x8e7978f4, 0x583e6b99, 0xb971dd27, |
| 594 | 0xe14fb6be, 0x88ad17f0, 0x20ac66c9, 0xce3ab47d, |
| 595 | 0xdf4a1863, 0x1a3182e5, 0x51336097, 0x537f4562, |
| 596 | 0x6477e0b1, 0x6bae84bb, 0x81a01cfe, 0x082b94f9, |
| 597 | 0x48685870, 0x45fd198f, 0xde6c8794, 0x7bf8b752, |
| 598 | 0x73d323ab, 0x4b02e272, 0x1f8f57e3, 0x55ab2a66, |
| 599 | 0xeb2807b2, 0xb5c2032f, 0xc57b9a86, 0x3708a5d3, |
| 600 | 0x2887f230, 0xbfa5b223, 0x036aba02, 0x16825ced, |
| 601 | 0xcf1c2b8a, 0x79b492a7, 0x07f2f0f3, 0x69e2a14e, |
| 602 | 0xdaf4cd65, 0x05bed506, 0x34621fd1, 0xa6fe8ac4, |
| 603 | 0x2e539d34, 0xf355a0a2, 0x8ae13205, 0xf6eb75a4, |
| 604 | 0x83ec390b, 0x60efaa40, 0x719f065e, 0x6e1051bd, |
| 605 | 0x218af93e, 0xdd063d96, 0x3e05aedd, 0xe6bd464d, |
| 606 | 0x548db591, 0xc45d0571, 0x06d46f04, 0x5015ff60, |
| 607 | 0x98fb2419, 0xbde997d6, 0x4043cc89, 0xd99e7767, |
| 608 | 0xe842bdb0, 0x898b8807, 0x195b38e7, 0xc8eedb79, |
| 609 | 0x7c0a47a1, 0x420fe97c, 0x841ec9f8, 0x00000000, |
| 610 | 0x80868309, 0x2bed4832, 0x1170ac1e, 0x5a724e6c, |
| 611 | 0x0efffbfd, 0x8538560f, 0xaed51e3d, 0x2d392736, |
| 612 | 0x0fd9640a, 0x5ca62168, 0x5b54d19b, 0x362e3a24, |
| 613 | 0x0a67b10c, 0x57e70f93, 0xee96d2b4, 0x9b919e1b, |
| 614 | 0xc0c54f80, 0xdc20a261, 0x774b695a, 0x121a161c, |
| 615 | 0x93ba0ae2, 0xa02ae5c0, 0x22e0433c, 0x1b171d12, |
| 616 | 0x090d0b0e, 0x8bc7adf2, 0xb6a8b92d, 0x1ea9c814, |
| 617 | 0xf1198557, 0x75074caf, 0x99ddbbee, 0x7f60fda3, |
| 618 | 0x01269ff7, 0x72f5bc5c, 0x663bc544, 0xfb7e345b, |
| 619 | 0x4329768b, 0x23c6dccb, 0xedfc68b6, 0xe4f163b8, |
| 620 | 0x31dccad7, 0x63851042, 0x97224013, 0xc6112084, |
| 621 | 0x4a247d85, 0xbb3df8d2, 0xf93211ae, 0x29a16dc7, |
| 622 | 0x9e2f4b1d, 0xb230f3dc, 0x8652ec0d, 0xc1e3d077, |
| 623 | 0xb3166c2b, 0x70b999a9, 0x9448fa11, 0xe9642247, |
| 624 | 0xfc8cc4a8, 0xf03f1aa0, 0x7d2cd856, 0x3390ef22, |
| 625 | 0x494ec787, 0x38d1c1d9, 0xcaa2fe8c, 0xd40b3698, |
| 626 | 0xf581cfa6, 0x7ade28a5, 0xb78e26da, 0xadbfa43f, |
| 627 | 0x3a9de42c, 0x78920d50, 0x5fcc9b6a, 0x7e466254, |
| 628 | 0x8d13c2f6, 0xd8b8e890, 0x39f75e2e, 0xc3aff582, |
| 629 | 0x5d80be9f, 0xd0937c69, 0xd52da96f, 0x2512b3cf, |
| 630 | 0xac993bc8, 0x187da710, 0x9c636ee8, 0x3bbb7bdb, |
| 631 | 0x267809cd, 0x5918f46e, 0x9ab701ec, 0x4f9aa883, |
| 632 | 0x956e65e6, 0xffe67eaa, 0xbccf0821, 0x15e8e6ef, |
| 633 | 0xe79bd9ba, 0x6f36ce4a, 0x9f09d4ea, 0xb07cd629, |
| 634 | 0xa4b2af31, 0x3f23312a, 0xa59430c6, 0xa266c035, |
| 635 | 0x4ebc3774, 0x82caa6fc, 0x90d0b0e0, 0xa7d81533, |
| 636 | 0x04984af1, 0xecdaf741, 0xcd500e7f, 0x91f62f17, |
| 637 | 0x4dd68d76, 0xefb04d43, 0xaa4d54cc, 0x9604dfe4, |
| 638 | 0xd1b5e39e, 0x6a881b4c, 0x2c1fb8c1, 0x65517f46, |
| 639 | 0x5eea049d, 0x8c355d01, 0x877473fa, 0x0b412efb, |
| 640 | 0x671d5ab3, 0xdbd25292, 0x105633e9, 0xd647136d, |
| 641 | 0xd7618c9a, 0xa10c7a37, 0xf8148e59, 0x133c89eb, |
| 642 | 0xa927eece, 0x61c935b7, 0x1ce5ede1, 0x47b13c7a, |
| 643 | 0xd2df599c, 0xf2733f55, 0x14ce7918, 0xc737bf73, |
| 644 | 0xf7cdea53, 0xfdaa5b5f, 0x3d6f14df, 0x44db8678, |
| 645 | 0xaff381ca, 0x68c43eb9, 0x24342c38, 0xa3405fc2, |
| 646 | 0x1dc37216, 0xe2250cbc, 0x3c498b28, 0x0d9541ff, |
| 647 | 0xa8017139, 0x0cb3de08, 0xb4e49cd8, 0x56c19064, |
| 648 | 0xcb84617b, 0x32b670d5, 0x6c5c7448, 0xb85742d0, |
| 649 | }; |
| 650 | |
| 651 | /* |
| 652 | * Common macros in both the encryption and decryption routines. |
| 653 | */ |
| 654 | #define ADD_ROUND_KEY_4 (block[0]^=*keysched++, block[1]^=*keysched++, \ |
| 655 | block[2]^=*keysched++, block[3]^=*keysched++) |
| 656 | #define ADD_ROUND_KEY_6 (block[0]^=*keysched++, block[1]^=*keysched++, \ |
| 657 | block[2]^=*keysched++, block[3]^=*keysched++, \ |
| 658 | block[4]^=*keysched++, block[5]^=*keysched++) |
| 659 | #define ADD_ROUND_KEY_8 (block[0]^=*keysched++, block[1]^=*keysched++, \ |
| 660 | block[2]^=*keysched++, block[3]^=*keysched++, \ |
| 661 | block[4]^=*keysched++, block[5]^=*keysched++, \ |
| 662 | block[6]^=*keysched++, block[7]^=*keysched++) |
| 663 | #define MOVEWORD(i) ( block[i] = newstate[i] ) |
| 664 | |
| 665 | /* |
| 666 | * Macros for the encryption routine. There are three encryption |
| 667 | * cores, for Nb=4,6,8. |
| 668 | */ |
| 669 | #define MAKEWORD(i) ( newstate[i] = (E0[(block[i] >> 24) & 0xFF] ^ \ |
| 670 | E1[(block[(i+C1)%Nb] >> 16) & 0xFF] ^ \ |
| 671 | E2[(block[(i+C2)%Nb] >> 8) & 0xFF] ^ \ |
| 672 | E3[block[(i+C3)%Nb] & 0xFF]) ) |
| 673 | #define LASTWORD(i) ( newstate[i] = (Sbox[(block[i] >> 24) & 0xFF] << 24) | \ |
| 674 | (Sbox[(block[(i+C1)%Nb] >> 16) & 0xFF] << 16) | \ |
| 675 | (Sbox[(block[(i+C2)%Nb] >> 8) & 0xFF] << 8) | \ |
| 676 | (Sbox[(block[(i+C3)%Nb] ) & 0xFF] ) ) |
| 677 | |
| 678 | /* |
| 679 | * Core encrypt routines, expecting word32 inputs read big-endian |
| 680 | * from the byte-oriented input stream. |
| 681 | */ |
| 682 | static void aes_encrypt_nb_4(AESContext * ctx, word32 * block) |
| 683 | { |
| 684 | int i; |
| 685 | static const int C1 = 1, C2 = 2, C3 = 3, Nb = 4; |
| 686 | word32 *keysched = ctx->keysched; |
| 687 | word32 newstate[4]; |
| 688 | for (i = 0; i < ctx->Nr - 1; i++) { |
| 689 | ADD_ROUND_KEY_4; |
| 690 | MAKEWORD(0); |
| 691 | MAKEWORD(1); |
| 692 | MAKEWORD(2); |
| 693 | MAKEWORD(3); |
| 694 | MOVEWORD(0); |
| 695 | MOVEWORD(1); |
| 696 | MOVEWORD(2); |
| 697 | MOVEWORD(3); |
| 698 | } |
| 699 | ADD_ROUND_KEY_4; |
| 700 | LASTWORD(0); |
| 701 | LASTWORD(1); |
| 702 | LASTWORD(2); |
| 703 | LASTWORD(3); |
| 704 | MOVEWORD(0); |
| 705 | MOVEWORD(1); |
| 706 | MOVEWORD(2); |
| 707 | MOVEWORD(3); |
| 708 | ADD_ROUND_KEY_4; |
| 709 | } |
| 710 | static void aes_encrypt_nb_6(AESContext * ctx, word32 * block) |
| 711 | { |
| 712 | int i; |
| 713 | static const int C1 = 1, C2 = 2, C3 = 3, Nb = 6; |
| 714 | word32 *keysched = ctx->keysched; |
| 715 | word32 newstate[6]; |
| 716 | for (i = 0; i < ctx->Nr - 1; i++) { |
| 717 | ADD_ROUND_KEY_6; |
| 718 | MAKEWORD(0); |
| 719 | MAKEWORD(1); |
| 720 | MAKEWORD(2); |
| 721 | MAKEWORD(3); |
| 722 | MAKEWORD(4); |
| 723 | MAKEWORD(5); |
| 724 | MOVEWORD(0); |
| 725 | MOVEWORD(1); |
| 726 | MOVEWORD(2); |
| 727 | MOVEWORD(3); |
| 728 | MOVEWORD(4); |
| 729 | MOVEWORD(5); |
| 730 | } |
| 731 | ADD_ROUND_KEY_6; |
| 732 | LASTWORD(0); |
| 733 | LASTWORD(1); |
| 734 | LASTWORD(2); |
| 735 | LASTWORD(3); |
| 736 | LASTWORD(4); |
| 737 | LASTWORD(5); |
| 738 | MOVEWORD(0); |
| 739 | MOVEWORD(1); |
| 740 | MOVEWORD(2); |
| 741 | MOVEWORD(3); |
| 742 | MOVEWORD(4); |
| 743 | MOVEWORD(5); |
| 744 | ADD_ROUND_KEY_6; |
| 745 | } |
| 746 | static void aes_encrypt_nb_8(AESContext * ctx, word32 * block) |
| 747 | { |
| 748 | int i; |
| 749 | static const int C1 = 1, C2 = 3, C3 = 4, Nb = 8; |
| 750 | word32 *keysched = ctx->keysched; |
| 751 | word32 newstate[8]; |
| 752 | for (i = 0; i < ctx->Nr - 1; i++) { |
| 753 | ADD_ROUND_KEY_8; |
| 754 | MAKEWORD(0); |
| 755 | MAKEWORD(1); |
| 756 | MAKEWORD(2); |
| 757 | MAKEWORD(3); |
| 758 | MAKEWORD(4); |
| 759 | MAKEWORD(5); |
| 760 | MAKEWORD(6); |
| 761 | MAKEWORD(7); |
| 762 | MOVEWORD(0); |
| 763 | MOVEWORD(1); |
| 764 | MOVEWORD(2); |
| 765 | MOVEWORD(3); |
| 766 | MOVEWORD(4); |
| 767 | MOVEWORD(5); |
| 768 | MOVEWORD(6); |
| 769 | MOVEWORD(7); |
| 770 | } |
| 771 | ADD_ROUND_KEY_8; |
| 772 | LASTWORD(0); |
| 773 | LASTWORD(1); |
| 774 | LASTWORD(2); |
| 775 | LASTWORD(3); |
| 776 | LASTWORD(4); |
| 777 | LASTWORD(5); |
| 778 | LASTWORD(6); |
| 779 | LASTWORD(7); |
| 780 | MOVEWORD(0); |
| 781 | MOVEWORD(1); |
| 782 | MOVEWORD(2); |
| 783 | MOVEWORD(3); |
| 784 | MOVEWORD(4); |
| 785 | MOVEWORD(5); |
| 786 | MOVEWORD(6); |
| 787 | MOVEWORD(7); |
| 788 | ADD_ROUND_KEY_8; |
| 789 | } |
| 790 | |
| 791 | #undef MAKEWORD |
| 792 | #undef LASTWORD |
| 793 | |
| 794 | /* |
| 795 | * Macros for the decryption routine. There are three decryption |
| 796 | * cores, for Nb=4,6,8. |
| 797 | */ |
| 798 | #define MAKEWORD(i) ( newstate[i] = (D0[(block[i] >> 24) & 0xFF] ^ \ |
| 799 | D1[(block[(i+C1)%Nb] >> 16) & 0xFF] ^ \ |
| 800 | D2[(block[(i+C2)%Nb] >> 8) & 0xFF] ^ \ |
| 801 | D3[block[(i+C3)%Nb] & 0xFF]) ) |
| 802 | #define LASTWORD(i) (newstate[i] = (Sboxinv[(block[i] >> 24) & 0xFF] << 24) | \ |
| 803 | (Sboxinv[(block[(i+C1)%Nb] >> 16) & 0xFF] << 16) | \ |
| 804 | (Sboxinv[(block[(i+C2)%Nb] >> 8) & 0xFF] << 8) | \ |
| 805 | (Sboxinv[(block[(i+C3)%Nb] ) & 0xFF] ) ) |
| 806 | |
| 807 | /* |
| 808 | * Core decrypt routines, expecting word32 inputs read big-endian |
| 809 | * from the byte-oriented input stream. |
| 810 | */ |
| 811 | static void aes_decrypt_nb_4(AESContext * ctx, word32 * block) |
| 812 | { |
| 813 | int i; |
| 814 | static const int C1 = 4 - 1, C2 = 4 - 2, C3 = 4 - 3, Nb = 4; |
| 815 | word32 *keysched = ctx->invkeysched; |
| 816 | word32 newstate[4]; |
| 817 | for (i = 0; i < ctx->Nr - 1; i++) { |
| 818 | ADD_ROUND_KEY_4; |
| 819 | MAKEWORD(0); |
| 820 | MAKEWORD(1); |
| 821 | MAKEWORD(2); |
| 822 | MAKEWORD(3); |
| 823 | MOVEWORD(0); |
| 824 | MOVEWORD(1); |
| 825 | MOVEWORD(2); |
| 826 | MOVEWORD(3); |
| 827 | } |
| 828 | ADD_ROUND_KEY_4; |
| 829 | LASTWORD(0); |
| 830 | LASTWORD(1); |
| 831 | LASTWORD(2); |
| 832 | LASTWORD(3); |
| 833 | MOVEWORD(0); |
| 834 | MOVEWORD(1); |
| 835 | MOVEWORD(2); |
| 836 | MOVEWORD(3); |
| 837 | ADD_ROUND_KEY_4; |
| 838 | } |
| 839 | static void aes_decrypt_nb_6(AESContext * ctx, word32 * block) |
| 840 | { |
| 841 | int i; |
| 842 | static const int C1 = 6 - 1, C2 = 6 - 2, C3 = 6 - 3, Nb = 6; |
| 843 | word32 *keysched = ctx->invkeysched; |
| 844 | word32 newstate[6]; |
| 845 | for (i = 0; i < ctx->Nr - 1; i++) { |
| 846 | ADD_ROUND_KEY_6; |
| 847 | MAKEWORD(0); |
| 848 | MAKEWORD(1); |
| 849 | MAKEWORD(2); |
| 850 | MAKEWORD(3); |
| 851 | MAKEWORD(4); |
| 852 | MAKEWORD(5); |
| 853 | MOVEWORD(0); |
| 854 | MOVEWORD(1); |
| 855 | MOVEWORD(2); |
| 856 | MOVEWORD(3); |
| 857 | MOVEWORD(4); |
| 858 | MOVEWORD(5); |
| 859 | } |
| 860 | ADD_ROUND_KEY_6; |
| 861 | LASTWORD(0); |
| 862 | LASTWORD(1); |
| 863 | LASTWORD(2); |
| 864 | LASTWORD(3); |
| 865 | LASTWORD(4); |
| 866 | LASTWORD(5); |
| 867 | MOVEWORD(0); |
| 868 | MOVEWORD(1); |
| 869 | MOVEWORD(2); |
| 870 | MOVEWORD(3); |
| 871 | MOVEWORD(4); |
| 872 | MOVEWORD(5); |
| 873 | ADD_ROUND_KEY_6; |
| 874 | } |
| 875 | static void aes_decrypt_nb_8(AESContext * ctx, word32 * block) |
| 876 | { |
| 877 | int i; |
| 878 | static const int C1 = 8 - 1, C2 = 8 - 3, C3 = 8 - 4, Nb = 8; |
| 879 | word32 *keysched = ctx->invkeysched; |
| 880 | word32 newstate[8]; |
| 881 | for (i = 0; i < ctx->Nr - 1; i++) { |
| 882 | ADD_ROUND_KEY_8; |
| 883 | MAKEWORD(0); |
| 884 | MAKEWORD(1); |
| 885 | MAKEWORD(2); |
| 886 | MAKEWORD(3); |
| 887 | MAKEWORD(4); |
| 888 | MAKEWORD(5); |
| 889 | MAKEWORD(6); |
| 890 | MAKEWORD(7); |
| 891 | MOVEWORD(0); |
| 892 | MOVEWORD(1); |
| 893 | MOVEWORD(2); |
| 894 | MOVEWORD(3); |
| 895 | MOVEWORD(4); |
| 896 | MOVEWORD(5); |
| 897 | MOVEWORD(6); |
| 898 | MOVEWORD(7); |
| 899 | } |
| 900 | ADD_ROUND_KEY_8; |
| 901 | LASTWORD(0); |
| 902 | LASTWORD(1); |
| 903 | LASTWORD(2); |
| 904 | LASTWORD(3); |
| 905 | LASTWORD(4); |
| 906 | LASTWORD(5); |
| 907 | LASTWORD(6); |
| 908 | LASTWORD(7); |
| 909 | MOVEWORD(0); |
| 910 | MOVEWORD(1); |
| 911 | MOVEWORD(2); |
| 912 | MOVEWORD(3); |
| 913 | MOVEWORD(4); |
| 914 | MOVEWORD(5); |
| 915 | MOVEWORD(6); |
| 916 | MOVEWORD(7); |
| 917 | ADD_ROUND_KEY_8; |
| 918 | } |
| 919 | |
| 920 | #undef MAKEWORD |
| 921 | #undef LASTWORD |
| 922 | |
| 923 | |
| 924 | /* |
| 925 | * Set up an AESContext. `keylen' and `blocklen' are measured in |
| 926 | * bytes; each can be either 16 (128-bit), 24 (192-bit), or 32 |
| 927 | * (256-bit). |
| 928 | */ |
| 929 | static void aes_setup(AESContext * ctx, int blocklen, |
| 930 | unsigned char *key, int keylen) |
| 931 | { |
| 932 | int i, j, Nk, rconst; |
| 933 | |
| 934 | assert(blocklen == 16 || blocklen == 24 || blocklen == 32); |
| 935 | assert(keylen == 16 || keylen == 24 || keylen == 32); |
| 936 | |
| 937 | /* |
| 938 | * Basic parameters. Words per block, words in key, rounds. |
| 939 | */ |
| 940 | Nk = keylen / 4; |
| 941 | ctx->Nb = blocklen / 4; |
| 942 | ctx->Nr = 6 + (ctx->Nb > Nk ? ctx->Nb : Nk); |
| 943 | |
| 944 | /* |
| 945 | * Assign core-function pointers. |
| 946 | */ |
| 947 | if (ctx->Nb == 8) |
| 948 | ctx->encrypt = aes_encrypt_nb_8, ctx->decrypt = aes_decrypt_nb_8; |
| 949 | else if (ctx->Nb == 6) |
| 950 | ctx->encrypt = aes_encrypt_nb_6, ctx->decrypt = aes_decrypt_nb_6; |
| 951 | else if (ctx->Nb == 4) |
| 952 | ctx->encrypt = aes_encrypt_nb_4, ctx->decrypt = aes_decrypt_nb_4; |
| 953 | |
| 954 | /* |
| 955 | * Now do the key setup itself. |
| 956 | */ |
| 957 | rconst = 1; |
| 958 | for (i = 0; i < (ctx->Nr + 1) * ctx->Nb; i++) { |
| 959 | if (i < Nk) |
| 960 | ctx->keysched[i] = GET_32BIT_MSB_FIRST(key + 4 * i); |
| 961 | else { |
| 962 | word32 temp = ctx->keysched[i - 1]; |
| 963 | if (i % Nk == 0) { |
| 964 | int a, b, c, d; |
| 965 | a = (temp >> 16) & 0xFF; |
| 966 | b = (temp >> 8) & 0xFF; |
| 967 | c = (temp >> 0) & 0xFF; |
| 968 | d = (temp >> 24) & 0xFF; |
| 969 | temp = Sbox[a] ^ rconst; |
| 970 | temp = (temp << 8) | Sbox[b]; |
| 971 | temp = (temp << 8) | Sbox[c]; |
| 972 | temp = (temp << 8) | Sbox[d]; |
| 973 | rconst = mulby2(rconst); |
| 974 | } else if (i % Nk == 4 && Nk > 6) { |
| 975 | int a, b, c, d; |
| 976 | a = (temp >> 24) & 0xFF; |
| 977 | b = (temp >> 16) & 0xFF; |
| 978 | c = (temp >> 8) & 0xFF; |
| 979 | d = (temp >> 0) & 0xFF; |
| 980 | temp = Sbox[a]; |
| 981 | temp = (temp << 8) | Sbox[b]; |
| 982 | temp = (temp << 8) | Sbox[c]; |
| 983 | temp = (temp << 8) | Sbox[d]; |
| 984 | } |
| 985 | ctx->keysched[i] = ctx->keysched[i - Nk] ^ temp; |
| 986 | } |
| 987 | } |
| 988 | |
| 989 | /* |
| 990 | * Now prepare the modified keys for the inverse cipher. |
| 991 | */ |
| 992 | for (i = 0; i <= ctx->Nr; i++) { |
| 993 | for (j = 0; j < ctx->Nb; j++) { |
| 994 | word32 temp; |
| 995 | temp = ctx->keysched[(ctx->Nr - i) * ctx->Nb + j]; |
| 996 | if (i != 0 && i != ctx->Nr) { |
| 997 | /* |
| 998 | * Perform the InvMixColumn operation on i. The D |
| 999 | * tables give the result of InvMixColumn applied |
| 1000 | * to Sboxinv on individual bytes, so we should |
| 1001 | * compose Sbox with the D tables for this. |
| 1002 | */ |
| 1003 | int a, b, c, d; |
| 1004 | a = (temp >> 24) & 0xFF; |
| 1005 | b = (temp >> 16) & 0xFF; |
| 1006 | c = (temp >> 8) & 0xFF; |
| 1007 | d = (temp >> 0) & 0xFF; |
| 1008 | temp = D0[Sbox[a]]; |
| 1009 | temp ^= D1[Sbox[b]]; |
| 1010 | temp ^= D2[Sbox[c]]; |
| 1011 | temp ^= D3[Sbox[d]]; |
| 1012 | } |
| 1013 | ctx->invkeysched[i * ctx->Nb + j] = temp; |
| 1014 | } |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | static void aes_encrypt(AESContext * ctx, word32 * block) |
| 1019 | { |
| 1020 | ctx->encrypt(ctx, block); |
| 1021 | } |
| 1022 | |
| 1023 | static void aes_decrypt(AESContext * ctx, word32 * block) |
| 1024 | { |
| 1025 | ctx->decrypt(ctx, block); |
| 1026 | } |
| 1027 | |
| 1028 | static void aes_encrypt_cbc(unsigned char *blk, int len, AESContext * ctx) |
| 1029 | { |
| 1030 | word32 iv[4]; |
| 1031 | int i; |
| 1032 | |
| 1033 | assert((len & 15) == 0); |
| 1034 | |
| 1035 | memcpy(iv, ctx->iv, sizeof(iv)); |
| 1036 | |
| 1037 | while (len > 0) { |
| 1038 | for (i = 0; i < 4; i++) |
| 1039 | iv[i] ^= GET_32BIT_MSB_FIRST(blk + 4 * i); |
| 1040 | aes_encrypt(ctx, iv); |
| 1041 | for (i = 0; i < 4; i++) |
| 1042 | PUT_32BIT_MSB_FIRST(blk + 4 * i, iv[i]); |
| 1043 | blk += 16; |
| 1044 | len -= 16; |
| 1045 | } |
| 1046 | |
| 1047 | memcpy(ctx->iv, iv, sizeof(iv)); |
| 1048 | } |
| 1049 | |
| 1050 | static void aes_decrypt_cbc(unsigned char *blk, int len, AESContext * ctx) |
| 1051 | { |
| 1052 | word32 iv[4], x[4], ct[4]; |
| 1053 | int i; |
| 1054 | |
| 1055 | assert((len & 15) == 0); |
| 1056 | |
| 1057 | memcpy(iv, ctx->iv, sizeof(iv)); |
| 1058 | |
| 1059 | while (len > 0) { |
| 1060 | for (i = 0; i < 4; i++) |
| 1061 | x[i] = ct[i] = GET_32BIT_MSB_FIRST(blk + 4 * i); |
| 1062 | aes_decrypt(ctx, x); |
| 1063 | for (i = 0; i < 4; i++) { |
| 1064 | PUT_32BIT_MSB_FIRST(blk + 4 * i, iv[i] ^ x[i]); |
| 1065 | iv[i] = ct[i]; |
| 1066 | } |
| 1067 | blk += 16; |
| 1068 | len -= 16; |
| 1069 | } |
| 1070 | |
| 1071 | memcpy(ctx->iv, iv, sizeof(iv)); |
| 1072 | } |
| 1073 | |
| 1074 | static void aes_sdctr(unsigned char *blk, int len, AESContext *ctx) |
| 1075 | { |
| 1076 | word32 iv[4], b[4], tmp; |
| 1077 | int i; |
| 1078 | |
| 1079 | assert((len & 15) == 0); |
| 1080 | |
| 1081 | memcpy(iv, ctx->iv, sizeof(iv)); |
| 1082 | |
| 1083 | while (len > 0) { |
| 1084 | memcpy(b, iv, sizeof(b)); |
| 1085 | aes_encrypt(ctx, b); |
| 1086 | for (i = 0; i < 4; i++) { |
| 1087 | tmp = GET_32BIT_MSB_FIRST(blk + 4 * i); |
| 1088 | PUT_32BIT_MSB_FIRST(blk + 4 * i, tmp ^ b[i]); |
| 1089 | } |
| 1090 | for (i = 3; i >= 0; i--) |
| 1091 | if ((iv[i] = (iv[i] + 1) & 0xffffffff) != 0) |
| 1092 | break; |
| 1093 | blk += 16; |
| 1094 | len -= 16; |
| 1095 | } |
| 1096 | |
| 1097 | memcpy(ctx->iv, iv, sizeof(iv)); |
| 1098 | } |
| 1099 | |
| 1100 | void *aes_make_context(void) |
| 1101 | { |
| 1102 | return snew(AESContext); |
| 1103 | } |
| 1104 | |
| 1105 | void aes_free_context(void *handle) |
| 1106 | { |
| 1107 | sfree(handle); |
| 1108 | } |
| 1109 | |
| 1110 | void aes128_key(void *handle, unsigned char *key) |
| 1111 | { |
| 1112 | AESContext *ctx = (AESContext *)handle; |
| 1113 | aes_setup(ctx, 16, key, 16); |
| 1114 | } |
| 1115 | |
| 1116 | void aes192_key(void *handle, unsigned char *key) |
| 1117 | { |
| 1118 | AESContext *ctx = (AESContext *)handle; |
| 1119 | aes_setup(ctx, 16, key, 24); |
| 1120 | } |
| 1121 | |
| 1122 | void aes256_key(void *handle, unsigned char *key) |
| 1123 | { |
| 1124 | AESContext *ctx = (AESContext *)handle; |
| 1125 | aes_setup(ctx, 16, key, 32); |
| 1126 | } |
| 1127 | |
| 1128 | void aes_iv(void *handle, unsigned char *iv) |
| 1129 | { |
| 1130 | AESContext *ctx = (AESContext *)handle; |
| 1131 | int i; |
| 1132 | for (i = 0; i < 4; i++) |
| 1133 | ctx->iv[i] = GET_32BIT_MSB_FIRST(iv + 4 * i); |
| 1134 | } |
| 1135 | |
| 1136 | void aes_ssh2_encrypt_blk(void *handle, unsigned char *blk, int len) |
| 1137 | { |
| 1138 | AESContext *ctx = (AESContext *)handle; |
| 1139 | aes_encrypt_cbc(blk, len, ctx); |
| 1140 | } |
| 1141 | |
| 1142 | void aes_ssh2_decrypt_blk(void *handle, unsigned char *blk, int len) |
| 1143 | { |
| 1144 | AESContext *ctx = (AESContext *)handle; |
| 1145 | aes_decrypt_cbc(blk, len, ctx); |
| 1146 | } |
| 1147 | |
| 1148 | static void aes_ssh2_sdctr(void *handle, unsigned char *blk, int len) |
| 1149 | { |
| 1150 | AESContext *ctx = (AESContext *)handle; |
| 1151 | aes_sdctr(blk, len, ctx); |
| 1152 | } |
| 1153 | |
| 1154 | void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len) |
| 1155 | { |
| 1156 | AESContext ctx; |
| 1157 | aes_setup(&ctx, 16, key, 32); |
| 1158 | memset(ctx.iv, 0, sizeof(ctx.iv)); |
| 1159 | aes_encrypt_cbc(blk, len, &ctx); |
| 1160 | memset(&ctx, 0, sizeof(ctx)); |
| 1161 | } |
| 1162 | |
| 1163 | void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len) |
| 1164 | { |
| 1165 | AESContext ctx; |
| 1166 | aes_setup(&ctx, 16, key, 32); |
| 1167 | memset(ctx.iv, 0, sizeof(ctx.iv)); |
| 1168 | aes_decrypt_cbc(blk, len, &ctx); |
| 1169 | memset(&ctx, 0, sizeof(ctx)); |
| 1170 | } |
| 1171 | |
| 1172 | static const struct ssh2_cipher ssh_aes128_ctr = { |
| 1173 | aes_make_context, aes_free_context, aes_iv, aes128_key, |
| 1174 | aes_ssh2_sdctr, aes_ssh2_sdctr, |
| 1175 | "aes128-ctr", |
| 1176 | 16, 128, 0, "AES-128 SDCTR" |
| 1177 | }; |
| 1178 | |
| 1179 | static const struct ssh2_cipher ssh_aes192_ctr = { |
| 1180 | aes_make_context, aes_free_context, aes_iv, aes192_key, |
| 1181 | aes_ssh2_sdctr, aes_ssh2_sdctr, |
| 1182 | "aes192-ctr", |
| 1183 | 16, 192, 0, "AES-192 SDCTR" |
| 1184 | }; |
| 1185 | |
| 1186 | static const struct ssh2_cipher ssh_aes256_ctr = { |
| 1187 | aes_make_context, aes_free_context, aes_iv, aes256_key, |
| 1188 | aes_ssh2_sdctr, aes_ssh2_sdctr, |
| 1189 | "aes256-ctr", |
| 1190 | 16, 256, 0, "AES-256 SDCTR" |
| 1191 | }; |
| 1192 | |
| 1193 | static const struct ssh2_cipher ssh_aes128 = { |
| 1194 | aes_make_context, aes_free_context, aes_iv, aes128_key, |
| 1195 | aes_ssh2_encrypt_blk, aes_ssh2_decrypt_blk, |
| 1196 | "aes128-cbc", |
| 1197 | 16, 128, SSH_CIPHER_IS_CBC, "AES-128 CBC" |
| 1198 | }; |
| 1199 | |
| 1200 | static const struct ssh2_cipher ssh_aes192 = { |
| 1201 | aes_make_context, aes_free_context, aes_iv, aes192_key, |
| 1202 | aes_ssh2_encrypt_blk, aes_ssh2_decrypt_blk, |
| 1203 | "aes192-cbc", |
| 1204 | 16, 192, SSH_CIPHER_IS_CBC, "AES-192 CBC" |
| 1205 | }; |
| 1206 | |
| 1207 | static const struct ssh2_cipher ssh_aes256 = { |
| 1208 | aes_make_context, aes_free_context, aes_iv, aes256_key, |
| 1209 | aes_ssh2_encrypt_blk, aes_ssh2_decrypt_blk, |
| 1210 | "aes256-cbc", |
| 1211 | 16, 256, SSH_CIPHER_IS_CBC, "AES-256 CBC" |
| 1212 | }; |
| 1213 | |
| 1214 | static const struct ssh2_cipher ssh_rijndael_lysator = { |
| 1215 | aes_make_context, aes_free_context, aes_iv, aes256_key, |
| 1216 | aes_ssh2_encrypt_blk, aes_ssh2_decrypt_blk, |
| 1217 | "rijndael-cbc@lysator.liu.se", |
| 1218 | 16, 256, SSH_CIPHER_IS_CBC, "AES-256 CBC" |
| 1219 | }; |
| 1220 | |
| 1221 | static const struct ssh2_cipher *const aes_list[] = { |
| 1222 | &ssh_aes256_ctr, |
| 1223 | &ssh_aes256, |
| 1224 | &ssh_rijndael_lysator, |
| 1225 | &ssh_aes192_ctr, |
| 1226 | &ssh_aes192, |
| 1227 | &ssh_aes128_ctr, |
| 1228 | &ssh_aes128, |
| 1229 | }; |
| 1230 | |
| 1231 | const struct ssh2_ciphers ssh2_aes = { |
| 1232 | sizeof(aes_list) / sizeof(*aes_list), |
| 1233 | aes_list |
| 1234 | }; |
projects / people / ms / putty.git / blame