projects / proxmark3-svn / blame
| Commit | Line | Data |
|---|---|---|
| 89647339 MHS |
1 | /* |
| 2 | * FIPS-197 compliant AES implementation | |
| 3 | * | |
| 4 | * Copyright (C) 2006-2014, Brainspark B.V. | |
| 5 | * | |
| 6 | * This file is part of PolarSSL (http://www.polarssl.org) | |
| 7 | * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> | |
| 8 | * | |
| 9 | * All rights reserved. | |
| 10 | * | |
| 11 | * This program is free software; you can redistribute it and/or modify | |
| 12 | * it under the terms of the GNU General Public License as published by | |
| 13 | * the Free Software Foundation; either version 2 of the License, or | |
| 14 | * (at your option) any later version. | |
| 15 | * | |
| 16 | * This program is distributed in the hope that it will be useful, | |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | * GNU General Public License for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU General Public License along | |
| 22 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 23 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 24 | */ | |
| 25 | /* | |
| 26 | * The AES block cipher was designed by Vincent Rijmen and Joan Daemen. | |
| 27 | * | |
| 28 | * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf | |
| 29 | * http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf | |
| 30 | */ | |
| 31 | ||
| 32 | #if !defined(POLARSSL_CONFIG_FILE) | |
| 33 | #include "polarssl_config.h" | |
| 34 | #else | |
| 35 | #include POLARSSL_CONFIG_FILE | |
| 36 | #endif | |
| 37 | ||
| 38 | #if defined(POLARSSL_AES_C) | |
| 39 | ||
| 40 | #include "aes.h" | |
| 41 | #if defined(POLARSSL_PADLOCK_C) | |
| 42 | #include "polarssl/padlock.h" | |
| 43 | #endif | |
| 44 | #if defined(POLARSSL_AESNI_C) | |
| 45 | #include "polarssl/aesni.h" | |
| 46 | #endif | |
| 47 | ||
| 48 | #if defined(POLARSSL_PLATFORM_C) | |
| 49 | #include "polarssl/platform.h" | |
| 50 | #else | |
| 51 | #define polarssl_printf printf | |
| 52 | #endif | |
| 53 | ||
| 54 | #if !defined(POLARSSL_AES_ALT) | |
| 55 | ||
| 56 | /* Implementation that should never be optimized out by the compiler */ | |
| 57 | static void polarssl_zeroize( void *v, size_t n ) { | |
| 58 | volatile unsigned char *p = v; while( n-- ) *p++ = 0; | |
| 59 | } | |
| 60 | ||
| 61 | /* | |
| 62 | * 32-bit integer manipulation macros (little endian) | |
| 63 | */ | |
| 64 | #ifndef GET_UINT32_LE | |
| 65 | #define GET_UINT32_LE(n,b,i) \ | |
| 66 | { \ | |
| 67 | (n) = ( (uint32_t) (b)[(i) ] ) \ | |
| 68 | | ( (uint32_t) (b)[(i) + 1] << 8 ) \ | |
| 69 | | ( (uint32_t) (b)[(i) + 2] << 16 ) \ | |
| 70 | | ( (uint32_t) (b)[(i) + 3] << 24 ); \ | |
| 71 | } | |
| 72 | #endif | |
| 73 | ||
| 74 | #ifndef PUT_UINT32_LE | |
| 75 | #define PUT_UINT32_LE(n,b,i) \ | |
| 76 | { \ | |
| 77 | (b)[(i) ] = (unsigned char) ( (n) ); \ | |
| 78 | (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \ | |
| 79 | (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \ | |
| 80 | (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \ | |
| 81 | } | |
| 82 | #endif | |
| 83 | ||
| 84 | #if defined(POLARSSL_PADLOCK_C) && \ | |
| 85 | ( defined(POLARSSL_HAVE_X86) || defined(PADLOCK_ALIGN16) ) | |
| 86 | static int aes_padlock_ace = -1; | |
| 87 | #endif | |
| 88 | ||
| 89 | #if defined(POLARSSL_AES_ROM_TABLES) | |
| 90 | /* | |
| 91 | * Forward S-box | |
| 92 | */ | |
| 93 | static const unsigned char FSb[256] = | |
| 94 | { | |
| 95 | 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, | |
| 96 | 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76, | |
| 97 | 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, | |
| 98 | 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0, | |
| 99 | 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, | |
| 100 | 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15, | |
| 101 | 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, | |
| 102 | 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75, | |
| 103 | 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, | |
| 104 | 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84, | |
| 105 | 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, | |
| 106 | 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF, | |
| 107 | 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, | |
| 108 | 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8, | |
| 109 | 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, | |
| 110 | 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2, | |
| 111 | 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, | |
| 112 | 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73, | |
| 113 | 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, | |
| 114 | 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB, | |
| 115 | 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, | |
| 116 | 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79, | |
| 117 | 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, | |
| 118 | 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08, | |
| 119 | 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, | |
| 120 | 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A, | |
| 121 | 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, | |
| 122 | 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E, | |
| 123 | 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, | |
| 124 | 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF, | |
| 125 | 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, | |
| 126 | 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16 | |
| 127 | }; | |
| 128 | ||
| 129 | /* | |
| 130 | * Forward tables | |
| 131 | */ | |
| 132 | #define FT \ | |
| 133 | \ | |
| 134 | V(A5,63,63,C6), V(84,7C,7C,F8), V(99,77,77,EE), V(8D,7B,7B,F6), \ | |
| 135 | V(0D,F2,F2,FF), V(BD,6B,6B,D6), V(B1,6F,6F,DE), V(54,C5,C5,91), \ | |
| 136 | V(50,30,30,60), V(03,01,01,02), V(A9,67,67,CE), V(7D,2B,2B,56), \ | |
| 137 | V(19,FE,FE,E7), V(62,D7,D7,B5), V(E6,AB,AB,4D), V(9A,76,76,EC), \ | |
| 138 | V(45,CA,CA,8F), V(9D,82,82,1F), V(40,C9,C9,89), V(87,7D,7D,FA), \ | |
| 139 | V(15,FA,FA,EF), V(EB,59,59,B2), V(C9,47,47,8E), V(0B,F0,F0,FB), \ | |
| 140 | V(EC,AD,AD,41), V(67,D4,D4,B3), V(FD,A2,A2,5F), V(EA,AF,AF,45), \ | |
| 141 | V(BF,9C,9C,23), V(F7,A4,A4,53), V(96,72,72,E4), V(5B,C0,C0,9B), \ | |
| 142 | V(C2,B7,B7,75), V(1C,FD,FD,E1), V(AE,93,93,3D), V(6A,26,26,4C), \ | |
| 143 | V(5A,36,36,6C), V(41,3F,3F,7E), V(02,F7,F7,F5), V(4F,CC,CC,83), \ | |
| 144 | V(5C,34,34,68), V(F4,A5,A5,51), V(34,E5,E5,D1), V(08,F1,F1,F9), \ | |
| 145 | V(93,71,71,E2), V(73,D8,D8,AB), V(53,31,31,62), V(3F,15,15,2A), \ | |
| 146 | V(0C,04,04,08), V(52,C7,C7,95), V(65,23,23,46), V(5E,C3,C3,9D), \ | |
| 147 | V(28,18,18,30), V(A1,96,96,37), V(0F,05,05,0A), V(B5,9A,9A,2F), \ | |
| 148 | V(09,07,07,0E), V(36,12,12,24), V(9B,80,80,1B), V(3D,E2,E2,DF), \ | |
| 149 | V(26,EB,EB,CD), V(69,27,27,4E), V(CD,B2,B2,7F), V(9F,75,75,EA), \ | |
| 150 | V(1B,09,09,12), V(9E,83,83,1D), V(74,2C,2C,58), V(2E,1A,1A,34), \ | |
| 151 | V(2D,1B,1B,36), V(B2,6E,6E,DC), V(EE,5A,5A,B4), V(FB,A0,A0,5B), \ | |
| 152 | V(F6,52,52,A4), V(4D,3B,3B,76), V(61,D6,D6,B7), V(CE,B3,B3,7D), \ | |
| 153 | V(7B,29,29,52), V(3E,E3,E3,DD), V(71,2F,2F,5E), V(97,84,84,13), \ | |
| 154 | V(F5,53,53,A6), V(68,D1,D1,B9), V(00,00,00,00), V(2C,ED,ED,C1), \ | |
| 155 | V(60,20,20,40), V(1F,FC,FC,E3), V(C8,B1,B1,79), V(ED,5B,5B,B6), \ | |
| 156 | V(BE,6A,6A,D4), V(46,CB,CB,8D), V(D9,BE,BE,67), V(4B,39,39,72), \ | |
| 157 | V(DE,4A,4A,94), V(D4,4C,4C,98), V(E8,58,58,B0), V(4A,CF,CF,85), \ | |
| 158 | V(6B,D0,D0,BB), V(2A,EF,EF,C5), V(E5,AA,AA,4F), V(16,FB,FB,ED), \ | |
| 159 | V(C5,43,43,86), V(D7,4D,4D,9A), V(55,33,33,66), V(94,85,85,11), \ | |
| 160 | V(CF,45,45,8A), V(10,F9,F9,E9), V(06,02,02,04), V(81,7F,7F,FE), \ | |
| 161 | V(F0,50,50,A0), V(44,3C,3C,78), V(BA,9F,9F,25), V(E3,A8,A8,4B), \ | |
| 162 | V(F3,51,51,A2), V(FE,A3,A3,5D), V(C0,40,40,80), V(8A,8F,8F,05), \ | |
| 163 | V(AD,92,92,3F), V(BC,9D,9D,21), V(48,38,38,70), V(04,F5,F5,F1), \ | |
| 164 | V(DF,BC,BC,63), V(C1,B6,B6,77), V(75,DA,DA,AF), V(63,21,21,42), \ | |
| 165 | V(30,10,10,20), V(1A,FF,FF,E5), V(0E,F3,F3,FD), V(6D,D2,D2,BF), \ | |
| 166 | V(4C,CD,CD,81), V(14,0C,0C,18), V(35,13,13,26), V(2F,EC,EC,C3), \ | |
| 167 | V(E1,5F,5F,BE), V(A2,97,97,35), V(CC,44,44,88), V(39,17,17,2E), \ | |
| 168 | V(57,C4,C4,93), V(F2,A7,A7,55), V(82,7E,7E,FC), V(47,3D,3D,7A), \ | |
| 169 | V(AC,64,64,C8), V(E7,5D,5D,BA), V(2B,19,19,32), V(95,73,73,E6), \ | |
| 170 | V(A0,60,60,C0), V(98,81,81,19), V(D1,4F,4F,9E), V(7F,DC,DC,A3), \ | |
| 171 | V(66,22,22,44), V(7E,2A,2A,54), V(AB,90,90,3B), V(83,88,88,0B), \ | |
| 172 | V(CA,46,46,8C), V(29,EE,EE,C7), V(D3,B8,B8,6B), V(3C,14,14,28), \ | |
| 173 | V(79,DE,DE,A7), V(E2,5E,5E,BC), V(1D,0B,0B,16), V(76,DB,DB,AD), \ | |
| 174 | V(3B,E0,E0,DB), V(56,32,32,64), V(4E,3A,3A,74), V(1E,0A,0A,14), \ | |
| 175 | V(DB,49,49,92), V(0A,06,06,0C), V(6C,24,24,48), V(E4,5C,5C,B8), \ | |
| 176 | V(5D,C2,C2,9F), V(6E,D3,D3,BD), V(EF,AC,AC,43), V(A6,62,62,C4), \ | |
| 177 | V(A8,91,91,39), V(A4,95,95,31), V(37,E4,E4,D3), V(8B,79,79,F2), \ | |
| 178 | V(32,E7,E7,D5), V(43,C8,C8,8B), V(59,37,37,6E), V(B7,6D,6D,DA), \ | |
| 179 | V(8C,8D,8D,01), V(64,D5,D5,B1), V(D2,4E,4E,9C), V(E0,A9,A9,49), \ | |
| 180 | V(B4,6C,6C,D8), V(FA,56,56,AC), V(07,F4,F4,F3), V(25,EA,EA,CF), \ | |
| 181 | V(AF,65,65,CA), V(8E,7A,7A,F4), V(E9,AE,AE,47), V(18,08,08,10), \ | |
| 182 | V(D5,BA,BA,6F), V(88,78,78,F0), V(6F,25,25,4A), V(72,2E,2E,5C), \ | |
| 183 | V(24,1C,1C,38), V(F1,A6,A6,57), V(C7,B4,B4,73), V(51,C6,C6,97), \ | |
| 184 | V(23,E8,E8,CB), V(7C,DD,DD,A1), V(9C,74,74,E8), V(21,1F,1F,3E), \ | |
| 185 | V(DD,4B,4B,96), V(DC,BD,BD,61), V(86,8B,8B,0D), V(85,8A,8A,0F), \ | |
| 186 | V(90,70,70,E0), V(42,3E,3E,7C), V(C4,B5,B5,71), V(AA,66,66,CC), \ | |
| 187 | V(D8,48,48,90), V(05,03,03,06), V(01,F6,F6,F7), V(12,0E,0E,1C), \ | |
| 188 | V(A3,61,61,C2), V(5F,35,35,6A), V(F9,57,57,AE), V(D0,B9,B9,69), \ | |
| 189 | V(91,86,86,17), V(58,C1,C1,99), V(27,1D,1D,3A), V(B9,9E,9E,27), \ | |
| 190 | V(38,E1,E1,D9), V(13,F8,F8,EB), V(B3,98,98,2B), V(33,11,11,22), \ | |
| 191 | V(BB,69,69,D2), V(70,D9,D9,A9), V(89,8E,8E,07), V(A7,94,94,33), \ | |
| 192 | V(B6,9B,9B,2D), V(22,1E,1E,3C), V(92,87,87,15), V(20,E9,E9,C9), \ | |
| 193 | V(49,CE,CE,87), V(FF,55,55,AA), V(78,28,28,50), V(7A,DF,DF,A5), \ | |
| 194 | V(8F,8C,8C,03), V(F8,A1,A1,59), V(80,89,89,09), V(17,0D,0D,1A), \ | |
| 195 | V(DA,BF,BF,65), V(31,E6,E6,D7), V(C6,42,42,84), V(B8,68,68,D0), \ | |
| 196 | V(C3,41,41,82), V(B0,99,99,29), V(77,2D,2D,5A), V(11,0F,0F,1E), \ | |
| 197 | V(CB,B0,B0,7B), V(FC,54,54,A8), V(D6,BB,BB,6D), V(3A,16,16,2C) | |
| 198 | ||
| 199 | #define V(a,b,c,d) 0x##a##b##c##d | |
| 200 | static const uint32_t FT0[256] = { FT }; | |
| 201 | #undef V | |
| 202 | ||
| 203 | #define V(a,b,c,d) 0x##b##c##d##a | |
| 204 | static const uint32_t FT1[256] = { FT }; | |
| 205 | #undef V | |
| 206 | ||
| 207 | #define V(a,b,c,d) 0x##c##d##a##b | |
| 208 | static const uint32_t FT2[256] = { FT }; | |
| 209 | #undef V | |
| 210 | ||
| 211 | #define V(a,b,c,d) 0x##d##a##b##c | |
| 212 | static const uint32_t FT3[256] = { FT }; | |
| 213 | #undef V | |
| 214 | ||
| 215 | #undef FT | |
| 216 | ||
| 217 | /* | |
| 218 | * Reverse S-box | |
| 219 | */ | |
| 220 | static const unsigned char RSb[256] = | |
| 221 | { | |
| 222 | 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, | |
| 223 | 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB, | |
| 224 | 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, | |
| 225 | 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB, | |
| 226 | 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, | |
| 227 | 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E, | |
| 228 | 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, | |
| 229 | 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25, | |
| 230 | 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, | |
| 231 | 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92, | |
| 232 | 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, | |
| 233 | 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84, | |
| 234 | 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, | |
| 235 | 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06, | |
| 236 | 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, | |
| 237 | 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B, | |
| 238 | 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, | |
| 239 | 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73, | |
| 240 | 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, | |
| 241 | 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E, | |
| 242 | 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, | |
| 243 | 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B, | |
| 244 | 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, | |
| 245 | 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4, | |
| 246 | 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, | |
| 247 | 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F, | |
| 248 | 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, | |
| 249 | 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF, | |
| 250 | 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, | |
| 251 | 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61, | |
| 252 | 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, | |
| 253 | 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D | |
| 254 | }; | |
| 255 | ||
| 256 | /* | |
| 257 | * Reverse tables | |
| 258 | */ | |
| 259 | #define RT \ | |
| 260 | \ | |
| 261 | V(50,A7,F4,51), V(53,65,41,7E), V(C3,A4,17,1A), V(96,5E,27,3A), \ | |
| 262 | V(CB,6B,AB,3B), V(F1,45,9D,1F), V(AB,58,FA,AC), V(93,03,E3,4B), \ | |
| 263 | V(55,FA,30,20), V(F6,6D,76,AD), V(91,76,CC,88), V(25,4C,02,F5), \ | |
| 264 | V(FC,D7,E5,4F), V(D7,CB,2A,C5), V(80,44,35,26), V(8F,A3,62,B5), \ | |
| 265 | V(49,5A,B1,DE), V(67,1B,BA,25), V(98,0E,EA,45), V(E1,C0,FE,5D), \ | |
| 266 | V(02,75,2F,C3), V(12,F0,4C,81), V(A3,97,46,8D), V(C6,F9,D3,6B), \ | |
| 267 | V(E7,5F,8F,03), V(95,9C,92,15), V(EB,7A,6D,BF), V(DA,59,52,95), \ | |
| 268 | V(2D,83,BE,D4), V(D3,21,74,58), V(29,69,E0,49), V(44,C8,C9,8E), \ | |
| 269 | V(6A,89,C2,75), V(78,79,8E,F4), V(6B,3E,58,99), V(DD,71,B9,27), \ | |
| 270 | V(B6,4F,E1,BE), V(17,AD,88,F0), V(66,AC,20,C9), V(B4,3A,CE,7D), \ | |
| 271 | V(18,4A,DF,63), V(82,31,1A,E5), V(60,33,51,97), V(45,7F,53,62), \ | |
| 272 | V(E0,77,64,B1), V(84,AE,6B,BB), V(1C,A0,81,FE), V(94,2B,08,F9), \ | |
| 273 | V(58,68,48,70), V(19,FD,45,8F), V(87,6C,DE,94), V(B7,F8,7B,52), \ | |
| 274 | V(23,D3,73,AB), V(E2,02,4B,72), V(57,8F,1F,E3), V(2A,AB,55,66), \ | |
| 275 | V(07,28,EB,B2), V(03,C2,B5,2F), V(9A,7B,C5,86), V(A5,08,37,D3), \ | |
| 276 | V(F2,87,28,30), V(B2,A5,BF,23), V(BA,6A,03,02), V(5C,82,16,ED), \ | |
| 277 | V(2B,1C,CF,8A), V(92,B4,79,A7), V(F0,F2,07,F3), V(A1,E2,69,4E), \ | |
| 278 | V(CD,F4,DA,65), V(D5,BE,05,06), V(1F,62,34,D1), V(8A,FE,A6,C4), \ | |
| 279 | V(9D,53,2E,34), V(A0,55,F3,A2), V(32,E1,8A,05), V(75,EB,F6,A4), \ | |
| 280 | V(39,EC,83,0B), V(AA,EF,60,40), V(06,9F,71,5E), V(51,10,6E,BD), \ | |
| 281 | V(F9,8A,21,3E), V(3D,06,DD,96), V(AE,05,3E,DD), V(46,BD,E6,4D), \ | |
| 282 | V(B5,8D,54,91), V(05,5D,C4,71), V(6F,D4,06,04), V(FF,15,50,60), \ | |
| 283 | V(24,FB,98,19), V(97,E9,BD,D6), V(CC,43,40,89), V(77,9E,D9,67), \ | |
| 284 | V(BD,42,E8,B0), V(88,8B,89,07), V(38,5B,19,E7), V(DB,EE,C8,79), \ | |
| 285 | V(47,0A,7C,A1), V(E9,0F,42,7C), V(C9,1E,84,F8), V(00,00,00,00), \ | |
| 286 | V(83,86,80,09), V(48,ED,2B,32), V(AC,70,11,1E), V(4E,72,5A,6C), \ | |
| 287 | V(FB,FF,0E,FD), V(56,38,85,0F), V(1E,D5,AE,3D), V(27,39,2D,36), \ | |
| 288 | V(64,D9,0F,0A), V(21,A6,5C,68), V(D1,54,5B,9B), V(3A,2E,36,24), \ | |
| 289 | V(B1,67,0A,0C), V(0F,E7,57,93), V(D2,96,EE,B4), V(9E,91,9B,1B), \ | |
| 290 | V(4F,C5,C0,80), V(A2,20,DC,61), V(69,4B,77,5A), V(16,1A,12,1C), \ | |
| 291 | V(0A,BA,93,E2), V(E5,2A,A0,C0), V(43,E0,22,3C), V(1D,17,1B,12), \ | |
| 292 | V(0B,0D,09,0E), V(AD,C7,8B,F2), V(B9,A8,B6,2D), V(C8,A9,1E,14), \ | |
| 293 | V(85,19,F1,57), V(4C,07,75,AF), V(BB,DD,99,EE), V(FD,60,7F,A3), \ | |
| 294 | V(9F,26,01,F7), V(BC,F5,72,5C), V(C5,3B,66,44), V(34,7E,FB,5B), \ | |
| 295 | V(76,29,43,8B), V(DC,C6,23,CB), V(68,FC,ED,B6), V(63,F1,E4,B8), \ | |
| 296 | V(CA,DC,31,D7), V(10,85,63,42), V(40,22,97,13), V(20,11,C6,84), \ | |
| 297 | V(7D,24,4A,85), V(F8,3D,BB,D2), V(11,32,F9,AE), V(6D,A1,29,C7), \ | |
| 298 | V(4B,2F,9E,1D), V(F3,30,B2,DC), V(EC,52,86,0D), V(D0,E3,C1,77), \ | |
| 299 | V(6C,16,B3,2B), V(99,B9,70,A9), V(FA,48,94,11), V(22,64,E9,47), \ | |
| 300 | V(C4,8C,FC,A8), V(1A,3F,F0,A0), V(D8,2C,7D,56), V(EF,90,33,22), \ | |
| 301 | V(C7,4E,49,87), V(C1,D1,38,D9), V(FE,A2,CA,8C), V(36,0B,D4,98), \ | |
| 302 | V(CF,81,F5,A6), V(28,DE,7A,A5), V(26,8E,B7,DA), V(A4,BF,AD,3F), \ | |
| 303 | V(E4,9D,3A,2C), V(0D,92,78,50), V(9B,CC,5F,6A), V(62,46,7E,54), \ | |
| 304 | V(C2,13,8D,F6), V(E8,B8,D8,90), V(5E,F7,39,2E), V(F5,AF,C3,82), \ | |
| 305 | V(BE,80,5D,9F), V(7C,93,D0,69), V(A9,2D,D5,6F), V(B3,12,25,CF), \ | |
| 306 | V(3B,99,AC,C8), V(A7,7D,18,10), V(6E,63,9C,E8), V(7B,BB,3B,DB), \ | |
| 307 | V(09,78,26,CD), V(F4,18,59,6E), V(01,B7,9A,EC), V(A8,9A,4F,83), \ | |
| 308 | V(65,6E,95,E6), V(7E,E6,FF,AA), V(08,CF,BC,21), V(E6,E8,15,EF), \ | |
| 309 | V(D9,9B,E7,BA), V(CE,36,6F,4A), V(D4,09,9F,EA), V(D6,7C,B0,29), \ | |
| 310 | V(AF,B2,A4,31), V(31,23,3F,2A), V(30,94,A5,C6), V(C0,66,A2,35), \ | |
| 311 | V(37,BC,4E,74), V(A6,CA,82,FC), V(B0,D0,90,E0), V(15,D8,A7,33), \ | |
| 312 | V(4A,98,04,F1), V(F7,DA,EC,41), V(0E,50,CD,7F), V(2F,F6,91,17), \ | |
| 313 | V(8D,D6,4D,76), V(4D,B0,EF,43), V(54,4D,AA,CC), V(DF,04,96,E4), \ | |
| 314 | V(E3,B5,D1,9E), V(1B,88,6A,4C), V(B8,1F,2C,C1), V(7F,51,65,46), \ | |
| 315 | V(04,EA,5E,9D), V(5D,35,8C,01), V(73,74,87,FA), V(2E,41,0B,FB), \ | |
| 316 | V(5A,1D,67,B3), V(52,D2,DB,92), V(33,56,10,E9), V(13,47,D6,6D), \ | |
| 317 | V(8C,61,D7,9A), V(7A,0C,A1,37), V(8E,14,F8,59), V(89,3C,13,EB), \ | |
| 318 | V(EE,27,A9,CE), V(35,C9,61,B7), V(ED,E5,1C,E1), V(3C,B1,47,7A), \ | |
| 319 | V(59,DF,D2,9C), V(3F,73,F2,55), V(79,CE,14,18), V(BF,37,C7,73), \ | |
| 320 | V(EA,CD,F7,53), V(5B,AA,FD,5F), V(14,6F,3D,DF), V(86,DB,44,78), \ | |
| 321 | V(81,F3,AF,CA), V(3E,C4,68,B9), V(2C,34,24,38), V(5F,40,A3,C2), \ | |
| 322 | V(72,C3,1D,16), V(0C,25,E2,BC), V(8B,49,3C,28), V(41,95,0D,FF), \ | |
| 323 | V(71,01,A8,39), V(DE,B3,0C,08), V(9C,E4,B4,D8), V(90,C1,56,64), \ | |
| 324 | V(61,84,CB,7B), V(70,B6,32,D5), V(74,5C,6C,48), V(42,57,B8,D0) | |
| 325 | ||
| 326 | #define V(a,b,c,d) 0x##a##b##c##d | |
| 327 | static const uint32_t RT0[256] = { RT }; | |
| 328 | #undef V | |
| 329 | ||
| 330 | #define V(a,b,c,d) 0x##b##c##d##a | |
| 331 | static const uint32_t RT1[256] = { RT }; | |
| 332 | #undef V | |
| 333 | ||
| 334 | #define V(a,b,c,d) 0x##c##d##a##b | |
| 335 | static const uint32_t RT2[256] = { RT }; | |
| 336 | #undef V | |
| 337 | ||
| 338 | #define V(a,b,c,d) 0x##d##a##b##c | |
| 339 | static const uint32_t RT3[256] = { RT }; | |
| 340 | #undef V | |
| 341 | ||
| 342 | #undef RT | |
| 343 | ||
| 344 | /* | |
| 345 | * Round constants | |
| 346 | */ | |
| 347 | static const uint32_t RCON[10] = | |
| 348 | { | |
| 349 | 0x00000001, 0x00000002, 0x00000004, 0x00000008, | |
| 350 | 0x00000010, 0x00000020, 0x00000040, 0x00000080, | |
| 351 | 0x0000001B, 0x00000036 | |
| 352 | }; | |
| 353 | ||
| 354 | #else /* POLARSSL_AES_ROM_TABLES */ | |
| 355 | ||
| 356 | /* | |
| 357 | * Forward S-box & tables | |
| 358 | */ | |
| 359 | static unsigned char FSb[256]; | |
| 360 | static uint32_t FT0[256]; | |
| 361 | static uint32_t FT1[256]; | |
| 362 | static uint32_t FT2[256]; | |
| 363 | static uint32_t FT3[256]; | |
| 364 | ||
| 365 | /* | |
| 366 | * Reverse S-box & tables | |
| 367 | */ | |
| 368 | static unsigned char RSb[256]; | |
| 369 | static uint32_t RT0[256]; | |
| 370 | static uint32_t RT1[256]; | |
| 371 | static uint32_t RT2[256]; | |
| 372 | static uint32_t RT3[256]; | |
| 373 | ||
| 374 | /* | |
| 375 | * Round constants | |
| 376 | */ | |
| 377 | static uint32_t RCON[10]; | |
| 378 | ||
| 379 | /* | |
| 380 | * Tables generation code | |
| 381 | */ | |
| 382 | #define ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 ) | |
| 383 | #define XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) ) | |
| 384 | #define MUL(x,y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 ) | |
| 385 | ||
| 386 | static int aes_init_done = 0; | |
| 387 | ||
| 388 | static void aes_gen_tables( void ) | |
| 389 | { | |
| 390 | int i, x, y, z; | |
| 391 | int pow[256]; | |
| 392 | int log[256]; | |
| 393 | ||
| 394 | /* | |
| 395 | * compute pow and log tables over GF(2^8) | |
| 396 | */ | |
| 397 | for( i = 0, x = 1; i < 256; i++ ) | |
| 398 | { | |
| 399 | pow[i] = x; | |
| 400 | log[x] = i; | |
| 401 | x = ( x ^ XTIME( x ) ) & 0xFF; | |
| 402 | } | |
| 403 | ||
| 404 | /* | |
| 405 | * calculate the round constants | |
| 406 | */ | |
| 407 | for( i = 0, x = 1; i < 10; i++ ) | |
| 408 | { | |
| 409 | RCON[i] = (uint32_t) x; | |
| 410 | x = XTIME( x ) & 0xFF; | |
| 411 | } | |
| 412 | ||
| 413 | /* | |
| 414 | * generate the forward and reverse S-boxes | |
| 415 | */ | |
| 416 | FSb[0x00] = 0x63; | |
| 417 | RSb[0x63] = 0x00; | |
| 418 | ||
| 419 | for( i = 1; i < 256; i++ ) | |
| 420 | { | |
| 421 | x = pow[255 - log[i]]; | |
| 422 | ||
| 423 | y = x; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 424 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 425 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 426 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 427 | x ^= y ^ 0x63; | |
| 428 | ||
| 429 | FSb[i] = (unsigned char) x; | |
| 430 | RSb[x] = (unsigned char) i; | |
| 431 | } | |
| 432 | ||
| 433 | /* | |
| 434 | * generate the forward and reverse tables | |
| 435 | */ | |
| 436 | for( i = 0; i < 256; i++ ) | |
| 437 | { | |
| 438 | x = FSb[i]; | |
| 439 | y = XTIME( x ) & 0xFF; | |
| 440 | z = ( y ^ x ) & 0xFF; | |
| 441 | ||
| 442 | FT0[i] = ( (uint32_t) y ) ^ | |
| 443 | ( (uint32_t) x << 8 ) ^ | |
| 444 | ( (uint32_t) x << 16 ) ^ | |
| 445 | ( (uint32_t) z << 24 ); | |
| 446 | ||
| 447 | FT1[i] = ROTL8( FT0[i] ); | |
| 448 | FT2[i] = ROTL8( FT1[i] ); | |
| 449 | FT3[i] = ROTL8( FT2[i] ); | |
| 450 | ||
| 451 | x = RSb[i]; | |
| 452 | ||
| 453 | RT0[i] = ( (uint32_t) MUL( 0x0E, x ) ) ^ | |
| 454 | ( (uint32_t) MUL( 0x09, x ) << 8 ) ^ | |
| 455 | ( (uint32_t) MUL( 0x0D, x ) << 16 ) ^ | |
| 456 | ( (uint32_t) MUL( 0x0B, x ) << 24 ); | |
| 457 | ||
| 458 | RT1[i] = ROTL8( RT0[i] ); | |
| 459 | RT2[i] = ROTL8( RT1[i] ); | |
| 460 | RT3[i] = ROTL8( RT2[i] ); | |
| 461 | } | |
| 462 | } | |
| 463 | ||
| 464 | #endif /* POLARSSL_AES_ROM_TABLES */ | |
| 465 | ||
| 466 | void aes_init( aes_context *ctx ) | |
| 467 | { | |
| 468 | memset( ctx, 0, sizeof( aes_context ) ); | |
| 469 | } | |
| 470 | ||
| 471 | void aes_free( aes_context *ctx ) | |
| 472 | { | |
| 473 | if( ctx == NULL ) | |
| 474 | return; | |
| 475 | ||
| 476 | polarssl_zeroize( ctx, sizeof( aes_context ) ); | |
| 477 | } | |
| 478 | ||
| 479 | /* | |
| 480 | * AES key schedule (encryption) | |
| 481 | */ | |
| 482 | int aes_setkey_enc( aes_context *ctx, const unsigned char *key, | |
| 483 | unsigned int keysize ) | |
| 484 | { | |
| 485 | unsigned int i; | |
| 486 | uint32_t *RK; | |
| 487 | ||
| 488 | #if !defined(POLARSSL_AES_ROM_TABLES) | |
| 489 | if( aes_init_done == 0 ) | |
| 490 | { | |
| 491 | aes_gen_tables(); | |
| 492 | aes_init_done = 1; | |
| 493 | ||
| 494 | } | |
| 495 | #endif | |
| 496 | ||
| 497 | switch( keysize ) | |
| 498 | { | |
| 499 | case 128: ctx->nr = 10; break; | |
| 500 | case 192: ctx->nr = 12; break; | |
| 501 | case 256: ctx->nr = 14; break; | |
| 502 | default : return( POLARSSL_ERR_AES_INVALID_KEY_LENGTH ); | |
| 503 | } | |
| 504 | ||
| 505 | #if defined(POLARSSL_PADLOCK_C) && defined(PADLOCK_ALIGN16) | |
| 506 | if( aes_padlock_ace == -1 ) | |
| 507 | aes_padlock_ace = padlock_supports( PADLOCK_ACE ); | |
| 508 | ||
| 509 | if( aes_padlock_ace ) | |
| 510 | ctx->rk = RK = PADLOCK_ALIGN16( ctx->buf ); | |
| 511 | else | |
| 512 | #endif | |
| 513 | ctx->rk = RK = ctx->buf; | |
| 514 | ||
| 515 | #if defined(POLARSSL_AESNI_C) && defined(POLARSSL_HAVE_X86_64) | |
| 516 | if( aesni_supports( POLARSSL_AESNI_AES ) ) | |
| 517 | return( aesni_setkey_enc( (unsigned char *) ctx->rk, key, keysize ) ); | |
| 518 | #endif | |
| 519 | ||
| 520 | for( i = 0; i < ( keysize >> 5 ); i++ ) | |
| 521 | { | |
| 522 | GET_UINT32_LE( RK[i], key, i << 2 ); | |
| 523 | } | |
| 524 | ||
| 525 | switch( ctx->nr ) | |
| 526 | { | |
| 527 | case 10: | |
| 528 | ||
| 529 | for( i = 0; i < 10; i++, RK += 4 ) | |
| 530 | { | |
| 531 | RK[4] = RK[0] ^ RCON[i] ^ | |
| 532 | ( (uint32_t) FSb[ ( RK[3] >> 8 ) & 0xFF ] ) ^ | |
| 533 | ( (uint32_t) FSb[ ( RK[3] >> 16 ) & 0xFF ] << 8 ) ^ | |
| 534 | ( (uint32_t) FSb[ ( RK[3] >> 24 ) & 0xFF ] << 16 ) ^ | |
| 535 | ( (uint32_t) FSb[ ( RK[3] ) & 0xFF ] << 24 ); | |
| 536 | ||
| 537 | RK[5] = RK[1] ^ RK[4]; | |
| 538 | RK[6] = RK[2] ^ RK[5]; | |
| 539 | RK[7] = RK[3] ^ RK[6]; | |
| 540 | } | |
| 541 | break; | |
| 542 | ||
| 543 | case 12: | |
| 544 | ||
| 545 | for( i = 0; i < 8; i++, RK += 6 ) | |
| 546 | { | |
| 547 | RK[6] = RK[0] ^ RCON[i] ^ | |
| 548 | ( (uint32_t) FSb[ ( RK[5] >> 8 ) & 0xFF ] ) ^ | |
| 549 | ( (uint32_t) FSb[ ( RK[5] >> 16 ) & 0xFF ] << 8 ) ^ | |
| 550 | ( (uint32_t) FSb[ ( RK[5] >> 24 ) & 0xFF ] << 16 ) ^ | |
| 551 | ( (uint32_t) FSb[ ( RK[5] ) & 0xFF ] << 24 ); | |
| 552 | ||
| 553 | RK[7] = RK[1] ^ RK[6]; | |
| 554 | RK[8] = RK[2] ^ RK[7]; | |
| 555 | RK[9] = RK[3] ^ RK[8]; | |
| 556 | RK[10] = RK[4] ^ RK[9]; | |
| 557 | RK[11] = RK[5] ^ RK[10]; | |
| 558 | } | |
| 559 | break; | |
| 560 | ||
| 561 | case 14: | |
| 562 | ||
| 563 | for( i = 0; i < 7; i++, RK += 8 ) | |
| 564 | { | |
| 565 | RK[8] = RK[0] ^ RCON[i] ^ | |
| 566 | ( (uint32_t) FSb[ ( RK[7] >> 8 ) & 0xFF ] ) ^ | |
| 567 | ( (uint32_t) FSb[ ( RK[7] >> 16 ) & 0xFF ] << 8 ) ^ | |
| 568 | ( (uint32_t) FSb[ ( RK[7] >> 24 ) & 0xFF ] << 16 ) ^ | |
| 569 | ( (uint32_t) FSb[ ( RK[7] ) & 0xFF ] << 24 ); | |
| 570 | ||
| 571 | RK[9] = RK[1] ^ RK[8]; | |
| 572 | RK[10] = RK[2] ^ RK[9]; | |
| 573 | RK[11] = RK[3] ^ RK[10]; | |
| 574 | ||
| 575 | RK[12] = RK[4] ^ | |
| 576 | ( (uint32_t) FSb[ ( RK[11] ) & 0xFF ] ) ^ | |
| 577 | ( (uint32_t) FSb[ ( RK[11] >> 8 ) & 0xFF ] << 8 ) ^ | |
| 578 | ( (uint32_t) FSb[ ( RK[11] >> 16 ) & 0xFF ] << 16 ) ^ | |
| 579 | ( (uint32_t) FSb[ ( RK[11] >> 24 ) & 0xFF ] << 24 ); | |
| 580 | ||
| 581 | RK[13] = RK[5] ^ RK[12]; | |
| 582 | RK[14] = RK[6] ^ RK[13]; | |
| 583 | RK[15] = RK[7] ^ RK[14]; | |
| 584 | } | |
| 585 | break; | |
| 586 | } | |
| 587 | ||
| 588 | return( 0 ); | |
| 589 | } | |
| 590 | ||
| 591 | /* | |
| 592 | * AES key schedule (decryption) | |
| 593 | */ | |
| 594 | int aes_setkey_dec( aes_context *ctx, const unsigned char *key, | |
| 595 | unsigned int keysize ) | |
| 596 | { | |
| 597 | int i, j, ret; | |
| 598 | aes_context cty; | |
| 599 | uint32_t *RK; | |
| 600 | uint32_t *SK; | |
| 601 | ||
| 602 | aes_init( &cty ); | |
| 603 | ||
| 604 | #if defined(POLARSSL_PADLOCK_C) && defined(PADLOCK_ALIGN16) | |
| 605 | if( aes_padlock_ace == -1 ) | |
| 606 | aes_padlock_ace = padlock_supports( PADLOCK_ACE ); | |
| 607 | ||
| 608 | if( aes_padlock_ace ) | |
| 609 | ctx->rk = RK = PADLOCK_ALIGN16( ctx->buf ); | |
| 610 | else | |
| 611 | #endif | |
| 612 | ctx->rk = RK = ctx->buf; | |
| 613 | ||
| 614 | /* Also checks keysize */ | |
| 615 | if( ( ret = aes_setkey_enc( &cty, key, keysize ) ) != 0 ) | |
| 616 | goto exit; | |
| 617 | ||
| 618 | ctx->nr = cty.nr; | |
| 619 | ||
| 620 | #if defined(POLARSSL_AESNI_C) && defined(POLARSSL_HAVE_X86_64) | |
| 621 | if( aesni_supports( POLARSSL_AESNI_AES ) ) | |
| 622 | { | |
| 623 | aesni_inverse_key( (unsigned char *) ctx->rk, | |
| 624 | (const unsigned char *) cty.rk, ctx->nr ); | |
| 625 | goto exit; | |
| 626 | } | |
| 627 | #endif | |
| 628 | ||
| 629 | SK = cty.rk + cty.nr * 4; | |
| 630 | ||
| 631 | *RK++ = *SK++; | |
| 632 | *RK++ = *SK++; | |
| 633 | *RK++ = *SK++; | |
| 634 | *RK++ = *SK++; | |
| 635 | ||
| 636 | for( i = ctx->nr - 1, SK -= 8; i > 0; i--, SK -= 8 ) | |
| 637 | { | |
| 638 | for( j = 0; j < 4; j++, SK++ ) | |
| 639 | { | |
| 640 | *RK++ = RT0[ FSb[ ( *SK ) & 0xFF ] ] ^ | |
| 641 | RT1[ FSb[ ( *SK >> 8 ) & 0xFF ] ] ^ | |
| 642 | RT2[ FSb[ ( *SK >> 16 ) & 0xFF ] ] ^ | |
| 643 | RT3[ FSb[ ( *SK >> 24 ) & 0xFF ] ]; | |
| 644 | } | |
| 645 | } | |
| 646 | ||
| 647 | *RK++ = *SK++; | |
| 648 | *RK++ = *SK++; | |
| 649 | *RK++ = *SK++; | |
| 650 | *RK++ = *SK++; | |
| 651 | ||
| 652 | exit: | |
| 653 | aes_free( &cty ); | |
| 654 | ||
| 655 | return( ret ); | |
| 656 | } | |
| 657 | ||
| 658 | #define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \ | |
| 659 | { \ | |
| 660 | X0 = *RK++ ^ FT0[ ( Y0 ) & 0xFF ] ^ \ | |
| 661 | FT1[ ( Y1 >> 8 ) & 0xFF ] ^ \ | |
| 662 | FT2[ ( Y2 >> 16 ) & 0xFF ] ^ \ | |
| 663 | FT3[ ( Y3 >> 24 ) & 0xFF ]; \ | |
| 664 | \ | |
| 665 | X1 = *RK++ ^ FT0[ ( Y1 ) & 0xFF ] ^ \ | |
| 666 | FT1[ ( Y2 >> 8 ) & 0xFF ] ^ \ | |
| 667 | FT2[ ( Y3 >> 16 ) & 0xFF ] ^ \ | |
| 668 | FT3[ ( Y0 >> 24 ) & 0xFF ]; \ | |
| 669 | \ | |
| 670 | X2 = *RK++ ^ FT0[ ( Y2 ) & 0xFF ] ^ \ | |
| 671 | FT1[ ( Y3 >> 8 ) & 0xFF ] ^ \ | |
| 672 | FT2[ ( Y0 >> 16 ) & 0xFF ] ^ \ | |
| 673 | FT3[ ( Y1 >> 24 ) & 0xFF ]; \ | |
| 674 | \ | |
| 675 | X3 = *RK++ ^ FT0[ ( Y3 ) & 0xFF ] ^ \ | |
| 676 | FT1[ ( Y0 >> 8 ) & 0xFF ] ^ \ | |
| 677 | FT2[ ( Y1 >> 16 ) & 0xFF ] ^ \ | |
| 678 | FT3[ ( Y2 >> 24 ) & 0xFF ]; \ | |
| 679 | } | |
| 680 | ||
| 681 | #define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \ | |
| 682 | { \ | |
| 683 | X0 = *RK++ ^ RT0[ ( Y0 ) & 0xFF ] ^ \ | |
| 684 | RT1[ ( Y3 >> 8 ) & 0xFF ] ^ \ | |
| 685 | RT2[ ( Y2 >> 16 ) & 0xFF ] ^ \ | |
| 686 | RT3[ ( Y1 >> 24 ) & 0xFF ]; \ | |
| 687 | \ | |
| 688 | X1 = *RK++ ^ RT0[ ( Y1 ) & 0xFF ] ^ \ | |
| 689 | RT1[ ( Y0 >> 8 ) & 0xFF ] ^ \ | |
| 690 | RT2[ ( Y3 >> 16 ) & 0xFF ] ^ \ | |
| 691 | RT3[ ( Y2 >> 24 ) & 0xFF ]; \ | |
| 692 | \ | |
| 693 | X2 = *RK++ ^ RT0[ ( Y2 ) & 0xFF ] ^ \ | |
| 694 | RT1[ ( Y1 >> 8 ) & 0xFF ] ^ \ | |
| 695 | RT2[ ( Y0 >> 16 ) & 0xFF ] ^ \ | |
| 696 | RT3[ ( Y3 >> 24 ) & 0xFF ]; \ | |
| 697 | \ | |
| 698 | X3 = *RK++ ^ RT0[ ( Y3 ) & 0xFF ] ^ \ | |
| 699 | RT1[ ( Y2 >> 8 ) & 0xFF ] ^ \ | |
| 700 | RT2[ ( Y1 >> 16 ) & 0xFF ] ^ \ | |
| 701 | RT3[ ( Y0 >> 24 ) & 0xFF ]; \ | |
| 702 | } | |
| 703 | ||
| 704 | /* | |
| 705 | * AES-ECB block encryption/decryption | |
| 706 | */ | |
| 707 | int aes_crypt_ecb( aes_context *ctx, | |
| 708 | int mode, | |
| 709 | const unsigned char input[16], | |
| 710 | unsigned char output[16] ) | |
| 711 | { | |
| 712 | int i; | |
| 713 | uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3; | |
| 714 | ||
| 715 | #if defined(POLARSSL_AESNI_C) && defined(POLARSSL_HAVE_X86_64) | |
| 716 | if( aesni_supports( POLARSSL_AESNI_AES ) ) | |
| 717 | return( aesni_crypt_ecb( ctx, mode, input, output ) ); | |
| 718 | #endif | |
| 719 | ||
| 720 | #if defined(POLARSSL_PADLOCK_C) && defined(POLARSSL_HAVE_X86) | |
| 721 | if( aes_padlock_ace ) | |
| 722 | { | |
| 723 | if( padlock_xcryptecb( ctx, mode, input, output ) == 0 ) | |
| 724 | return( 0 ); | |
| 725 | ||
| 726 | // If padlock data misaligned, we just fall back to | |
| 727 | // unaccelerated mode | |
| 728 | // | |
| 729 | } | |
| 730 | #endif | |
| 731 | ||
| 732 | RK = ctx->rk; | |
| 733 | ||
| 734 | GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++; | |
| 735 | GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++; | |
| 736 | GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++; | |
| 737 | GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++; | |
| 738 | ||
| 739 | if( mode == AES_DECRYPT ) | |
| 740 | { | |
| 741 | for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- ) | |
| 742 | { | |
| 743 | AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 744 | AES_RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 ); | |
| 745 | } | |
| 746 | ||
| 747 | AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 748 | ||
| 749 | X0 = *RK++ ^ \ | |
| 750 | ( (uint32_t) RSb[ ( Y0 ) & 0xFF ] ) ^ | |
| 751 | ( (uint32_t) RSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 752 | ( (uint32_t) RSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 753 | ( (uint32_t) RSb[ ( Y1 >> 24 ) & 0xFF ] << 24 ); | |
| 754 | ||
| 755 | X1 = *RK++ ^ \ | |
| 756 | ( (uint32_t) RSb[ ( Y1 ) & 0xFF ] ) ^ | |
| 757 | ( (uint32_t) RSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 758 | ( (uint32_t) RSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 759 | ( (uint32_t) RSb[ ( Y2 >> 24 ) & 0xFF ] << 24 ); | |
| 760 | ||
| 761 | X2 = *RK++ ^ \ | |
| 762 | ( (uint32_t) RSb[ ( Y2 ) & 0xFF ] ) ^ | |
| 763 | ( (uint32_t) RSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 764 | ( (uint32_t) RSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 765 | ( (uint32_t) RSb[ ( Y3 >> 24 ) & 0xFF ] << 24 ); | |
| 766 | ||
| 767 | X3 = *RK++ ^ \ | |
| 768 | ( (uint32_t) RSb[ ( Y3 ) & 0xFF ] ) ^ | |
| 769 | ( (uint32_t) RSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 770 | ( (uint32_t) RSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 771 | ( (uint32_t) RSb[ ( Y0 >> 24 ) & 0xFF ] << 24 ); | |
| 772 | } | |
| 773 | else /* AES_ENCRYPT */ | |
| 774 | { | |
| 775 | for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- ) | |
| 776 | { | |
| 777 | AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 778 | AES_FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 ); | |
| 779 | } | |
| 780 | ||
| 781 | AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 782 | ||
| 783 | X0 = *RK++ ^ \ | |
| 784 | ( (uint32_t) FSb[ ( Y0 ) & 0xFF ] ) ^ | |
| 785 | ( (uint32_t) FSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 786 | ( (uint32_t) FSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 787 | ( (uint32_t) FSb[ ( Y3 >> 24 ) & 0xFF ] << 24 ); | |
| 788 | ||
| 789 | X1 = *RK++ ^ \ | |
| 790 | ( (uint32_t) FSb[ ( Y1 ) & 0xFF ] ) ^ | |
| 791 | ( (uint32_t) FSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 792 | ( (uint32_t) FSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 793 | ( (uint32_t) FSb[ ( Y0 >> 24 ) & 0xFF ] << 24 ); | |
| 794 | ||
| 795 | X2 = *RK++ ^ \ | |
| 796 | ( (uint32_t) FSb[ ( Y2 ) & 0xFF ] ) ^ | |
| 797 | ( (uint32_t) FSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 798 | ( (uint32_t) FSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 799 | ( (uint32_t) FSb[ ( Y1 >> 24 ) & 0xFF ] << 24 ); | |
| 800 | ||
| 801 | X3 = *RK++ ^ \ | |
| 802 | ( (uint32_t) FSb[ ( Y3 ) & 0xFF ] ) ^ | |
| 803 | ( (uint32_t) FSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 804 | ( (uint32_t) FSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 805 | ( (uint32_t) FSb[ ( Y2 >> 24 ) & 0xFF ] << 24 ); | |
| 806 | } | |
| 807 | ||
| 808 | PUT_UINT32_LE( X0, output, 0 ); | |
| 809 | PUT_UINT32_LE( X1, output, 4 ); | |
| 810 | PUT_UINT32_LE( X2, output, 8 ); | |
| 811 | PUT_UINT32_LE( X3, output, 12 ); | |
| 812 | ||
| 813 | return( 0 ); | |
| 814 | } | |
| 815 | ||
| 816 | #if defined(POLARSSL_CIPHER_MODE_CBC) | |
| 817 | /* | |
| 818 | * AES-CBC buffer encryption/decryption | |
| 819 | */ | |
| 820 | int aes_crypt_cbc( aes_context *ctx, | |
| 821 | int mode, | |
| 822 | size_t length, | |
| 823 | unsigned char iv[16], | |
| 824 | const unsigned char *input, | |
| 825 | unsigned char *output ) | |
| 826 | { | |
| 827 | int i; | |
| 828 | unsigned char temp[16]; | |
| 829 | ||
| 830 | if( length % 16 ) | |
| 831 | return( POLARSSL_ERR_AES_INVALID_INPUT_LENGTH ); | |
| 832 | ||
| 833 | #if defined(POLARSSL_PADLOCK_C) && defined(POLARSSL_HAVE_X86) | |
| 834 | if( aes_padlock_ace ) | |
| 835 | { | |
| 836 | if( padlock_xcryptcbc( ctx, mode, length, iv, input, output ) == 0 ) | |
| 837 | return( 0 ); | |
| 838 | ||
| 839 | // If padlock data misaligned, we just fall back to | |
| 840 | // unaccelerated mode | |
| 841 | // | |
| 842 | } | |
| 843 | #endif | |
| 844 | ||
| 845 | if( mode == AES_DECRYPT ) | |
| 846 | { | |
| 847 | while( length > 0 ) | |
| 848 | { | |
| 849 | memcpy( temp, input, 16 ); | |
| 850 | aes_crypt_ecb( ctx, mode, input, output ); | |
| 851 | ||
| 852 | for( i = 0; i < 16; i++ ) | |
| 853 | output[i] = (unsigned char)( output[i] ^ iv[i] ); | |
| 854 | ||
| 855 | memcpy( iv, temp, 16 ); | |
| 856 | ||
| 857 | input += 16; | |
| 858 | output += 16; | |
| 859 | length -= 16; | |
| 860 | } | |
| 861 | } | |
| 862 | else | |
| 863 | { | |
| 864 | while( length > 0 ) | |
| 865 | { | |
| 866 | for( i = 0; i < 16; i++ ) | |
| 867 | output[i] = (unsigned char)( input[i] ^ iv[i] ); | |
| 868 | ||
| 869 | aes_crypt_ecb( ctx, mode, output, output ); | |
| 870 | memcpy( iv, output, 16 ); | |
| 871 | ||
| 872 | input += 16; | |
| 873 | output += 16; | |
| 874 | length -= 16; | |
| 875 | } | |
| 876 | } | |
| 877 | ||
| 878 | return( 0 ); | |
| 879 | } | |
| 880 | #endif /* POLARSSL_CIPHER_MODE_CBC */ | |
| 881 | ||
| 882 | #if defined(POLARSSL_CIPHER_MODE_CFB) | |
| 883 | /* | |
| 884 | * AES-CFB128 buffer encryption/decryption | |
| 885 | */ | |
| 886 | int aes_crypt_cfb128( aes_context *ctx, | |
| 887 | int mode, | |
| 888 | size_t length, | |
| 889 | size_t *iv_off, | |
| 890 | unsigned char iv[16], | |
| 891 | const unsigned char *input, | |
| 892 | unsigned char *output ) | |
| 893 | { | |
| 894 | int c; | |
| 895 | size_t n = *iv_off; | |
| 896 | ||
| 897 | if( mode == AES_DECRYPT ) | |
| 898 | { | |
| 899 | while( length-- ) | |
| 900 | { | |
| 901 | if( n == 0 ) | |
| 902 | aes_crypt_ecb( ctx, AES_ENCRYPT, iv, iv ); | |
| 903 | ||
| 904 | c = *input++; | |
| 905 | *output++ = (unsigned char)( c ^ iv[n] ); | |
| 906 | iv[n] = (unsigned char) c; | |
| 907 | ||
| 908 | n = ( n + 1 ) & 0x0F; | |
| 909 | } | |
| 910 | } | |
| 911 | else | |
| 912 | { | |
| 913 | while( length-- ) | |
| 914 | { | |
| 915 | if( n == 0 ) | |
| 916 | aes_crypt_ecb( ctx, AES_ENCRYPT, iv, iv ); | |
| 917 | ||
| 918 | iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); | |
| 919 | ||
| 920 | n = ( n + 1 ) & 0x0F; | |
| 921 | } | |
| 922 | } | |
| 923 | ||
| 924 | *iv_off = n; | |
| 925 | ||
| 926 | return( 0 ); | |
| 927 | } | |
| 928 | ||
| 929 | /* | |
| 930 | * AES-CFB8 buffer encryption/decryption | |
| 931 | */ | |
| 932 | #include <stdio.h> | |
| 933 | int aes_crypt_cfb8( aes_context *ctx, | |
| 934 | int mode, | |
| 935 | size_t length, | |
| 936 | unsigned char iv[16], | |
| 937 | const unsigned char *input, | |
| 938 | unsigned char *output ) | |
| 939 | { | |
| 940 | unsigned char c; | |
| 941 | unsigned char ov[17]; | |
| 942 | ||
| 943 | while( length-- ) | |
| 944 | { | |
| 945 | memcpy( ov, iv, 16 ); | |
| 946 | aes_crypt_ecb( ctx, AES_ENCRYPT, iv, iv ); | |
| 947 | ||
| 948 | if( mode == AES_DECRYPT ) | |
| 949 | ov[16] = *input; | |
| 950 | ||
| 951 | c = *output++ = (unsigned char)( iv[0] ^ *input++ ); | |
| 952 | ||
| 953 | if( mode == AES_ENCRYPT ) | |
| 954 | ov[16] = c; | |
| 955 | ||
| 956 | memcpy( iv, ov + 1, 16 ); | |
| 957 | } | |
| 958 | ||
| 959 | return( 0 ); | |
| 960 | } | |
| 961 | #endif /*POLARSSL_CIPHER_MODE_CFB */ | |
| 962 | ||
| 963 | #if defined(POLARSSL_CIPHER_MODE_CTR) | |
| 964 | /* | |
| 965 | * AES-CTR buffer encryption/decryption | |
| 966 | */ | |
| 967 | int aes_crypt_ctr( aes_context *ctx, | |
| 968 | size_t length, | |
| 969 | size_t *nc_off, | |
| 970 | unsigned char nonce_counter[16], | |
| 971 | unsigned char stream_block[16], | |
| 972 | const unsigned char *input, | |
| 973 | unsigned char *output ) | |
| 974 | { | |
| 975 | int c, i; | |
| 976 | size_t n = *nc_off; | |
| 977 | ||
| 978 | while( length-- ) | |
| 979 | { | |
| 980 | if( n == 0 ) { | |
| 981 | aes_crypt_ecb( ctx, AES_ENCRYPT, nonce_counter, stream_block ); | |
| 982 | ||
| 983 | for( i = 16; i > 0; i-- ) | |
| 984 | if( ++nonce_counter[i - 1] != 0 ) | |
| 985 | break; | |
| 986 | } | |
| 987 | c = *input++; | |
| 988 | *output++ = (unsigned char)( c ^ stream_block[n] ); | |
| 989 | ||
| 990 | n = ( n + 1 ) & 0x0F; | |
| 991 | } | |
| 992 | ||
| 993 | *nc_off = n; | |
| 994 | ||
| 995 | return( 0 ); | |
| 996 | } | |
| 997 | #endif /* POLARSSL_CIPHER_MODE_CTR */ | |
| 998 | ||
| 999 | #endif /* !POLARSSL_AES_ALT */ | |
| 1000 | ||
| 1001 | #if defined(POLARSSL_SELF_TEST) | |
| 1002 | ||
| 1003 | #include <stdio.h> | |
| 1004 | ||
| 1005 | /* | |
| 1006 | * AES test vectors from: | |
| 1007 | * | |
| 1008 | * http://csrc.nist.gov/archive/aes/rijndael/rijndael-vals.zip | |
| 1009 | */ | |
| 1010 | static const unsigned char aes_test_ecb_dec[3][16] = | |
| 1011 | { | |
| 1012 | { 0x44, 0x41, 0x6A, 0xC2, 0xD1, 0xF5, 0x3C, 0x58, | |
| 1013 | 0x33, 0x03, 0x91, 0x7E, 0x6B, 0xE9, 0xEB, 0xE0 }, | |
| 1014 | { 0x48, 0xE3, 0x1E, 0x9E, 0x25, 0x67, 0x18, 0xF2, | |
| 1015 | 0x92, 0x29, 0x31, 0x9C, 0x19, 0xF1, 0x5B, 0xA4 }, | |
| 1016 | { 0x05, 0x8C, 0xCF, 0xFD, 0xBB, 0xCB, 0x38, 0x2D, | |
| 1017 | 0x1F, 0x6F, 0x56, 0x58, 0x5D, 0x8A, 0x4A, 0xDE } | |
| 1018 | }; | |
| 1019 | ||
| 1020 | static const unsigned char aes_test_ecb_enc[3][16] = | |
| 1021 | { | |
| 1022 | { 0xC3, 0x4C, 0x05, 0x2C, 0xC0, 0xDA, 0x8D, 0x73, | |
| 1023 | 0x45, 0x1A, 0xFE, 0x5F, 0x03, 0xBE, 0x29, 0x7F }, | |
| 1024 | { 0xF3, 0xF6, 0x75, 0x2A, 0xE8, 0xD7, 0x83, 0x11, | |
| 1025 | 0x38, 0xF0, 0x41, 0x56, 0x06, 0x31, 0xB1, 0x14 }, | |
| 1026 | { 0x8B, 0x79, 0xEE, 0xCC, 0x93, 0xA0, 0xEE, 0x5D, | |
| 1027 | 0xFF, 0x30, 0xB4, 0xEA, 0x21, 0x63, 0x6D, 0xA4 } | |
| 1028 | }; | |
| 1029 | ||
| 1030 | #if defined(POLARSSL_CIPHER_MODE_CBC) | |
| 1031 | static const unsigned char aes_test_cbc_dec[3][16] = | |
| 1032 | { | |
| 1033 | { 0xFA, 0xCA, 0x37, 0xE0, 0xB0, 0xC8, 0x53, 0x73, | |
| 1034 | 0xDF, 0x70, 0x6E, 0x73, 0xF7, 0xC9, 0xAF, 0x86 }, | |
| 1035 | { 0x5D, 0xF6, 0x78, 0xDD, 0x17, 0xBA, 0x4E, 0x75, | |
| 1036 | 0xB6, 0x17, 0x68, 0xC6, 0xAD, 0xEF, 0x7C, 0x7B }, | |
| 1037 | { 0x48, 0x04, 0xE1, 0x81, 0x8F, 0xE6, 0x29, 0x75, | |
| 1038 | 0x19, 0xA3, 0xE8, 0x8C, 0x57, 0x31, 0x04, 0x13 } | |
| 1039 | }; | |
| 1040 | ||
| 1041 | static const unsigned char aes_test_cbc_enc[3][16] = | |
| 1042 | { | |
| 1043 | { 0x8A, 0x05, 0xFC, 0x5E, 0x09, 0x5A, 0xF4, 0x84, | |
| 1044 | 0x8A, 0x08, 0xD3, 0x28, 0xD3, 0x68, 0x8E, 0x3D }, | |
| 1045 | { 0x7B, 0xD9, 0x66, 0xD5, 0x3A, 0xD8, 0xC1, 0xBB, | |
| 1046 | 0x85, 0xD2, 0xAD, 0xFA, 0xE8, 0x7B, 0xB1, 0x04 }, | |
| 1047 | { 0xFE, 0x3C, 0x53, 0x65, 0x3E, 0x2F, 0x45, 0xB5, | |
| 1048 | 0x6F, 0xCD, 0x88, 0xB2, 0xCC, 0x89, 0x8F, 0xF0 } | |
| 1049 | }; | |
| 1050 | #endif /* POLARSSL_CIPHER_MODE_CBC */ | |
| 1051 | ||
| 1052 | #if defined(POLARSSL_CIPHER_MODE_CFB) | |
| 1053 | /* | |
| 1054 | * AES-CFB128 test vectors from: | |
| 1055 | * | |
| 1056 | * http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf | |
| 1057 | */ | |
| 1058 | static const unsigned char aes_test_cfb128_key[3][32] = | |
| 1059 | { | |
| 1060 | { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, | |
| 1061 | 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }, | |
| 1062 | { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52, | |
| 1063 | 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5, | |
| 1064 | 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B }, | |
| 1065 | { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE, | |
| 1066 | 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81, | |
| 1067 | 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7, | |
| 1068 | 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 } | |
| 1069 | }; | |
| 1070 | ||
| 1071 | static const unsigned char aes_test_cfb128_iv[16] = | |
| 1072 | { | |
| 1073 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1074 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F | |
| 1075 | }; | |
| 1076 | ||
| 1077 | static const unsigned char aes_test_cfb128_pt[64] = | |
| 1078 | { | |
| 1079 | 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96, | |
| 1080 | 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A, | |
| 1081 | 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C, | |
| 1082 | 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51, | |
| 1083 | 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11, | |
| 1084 | 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF, | |
| 1085 | 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17, | |
| 1086 | 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10 | |
| 1087 | }; | |
| 1088 | ||
| 1089 | static const unsigned char aes_test_cfb128_ct[3][64] = | |
| 1090 | { | |
| 1091 | { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20, | |
| 1092 | 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A, | |
| 1093 | 0xC8, 0xA6, 0x45, 0x37, 0xA0, 0xB3, 0xA9, 0x3F, | |
| 1094 | 0xCD, 0xE3, 0xCD, 0xAD, 0x9F, 0x1C, 0xE5, 0x8B, | |
| 1095 | 0x26, 0x75, 0x1F, 0x67, 0xA3, 0xCB, 0xB1, 0x40, | |
| 1096 | 0xB1, 0x80, 0x8C, 0xF1, 0x87, 0xA4, 0xF4, 0xDF, | |
| 1097 | 0xC0, 0x4B, 0x05, 0x35, 0x7C, 0x5D, 0x1C, 0x0E, | |
| 1098 | 0xEA, 0xC4, 0xC6, 0x6F, 0x9F, 0xF7, 0xF2, 0xE6 }, | |
| 1099 | { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB, | |
| 1100 | 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74, | |
| 1101 | 0x67, 0xCE, 0x7F, 0x7F, 0x81, 0x17, 0x36, 0x21, | |
| 1102 | 0x96, 0x1A, 0x2B, 0x70, 0x17, 0x1D, 0x3D, 0x7A, | |
| 1103 | 0x2E, 0x1E, 0x8A, 0x1D, 0xD5, 0x9B, 0x88, 0xB1, | |
| 1104 | 0xC8, 0xE6, 0x0F, 0xED, 0x1E, 0xFA, 0xC4, 0xC9, | |
| 1105 | 0xC0, 0x5F, 0x9F, 0x9C, 0xA9, 0x83, 0x4F, 0xA0, | |
| 1106 | 0x42, 0xAE, 0x8F, 0xBA, 0x58, 0x4B, 0x09, 0xFF }, | |
| 1107 | { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B, | |
| 1108 | 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60, | |
| 1109 | 0x39, 0xFF, 0xED, 0x14, 0x3B, 0x28, 0xB1, 0xC8, | |
| 1110 | 0x32, 0x11, 0x3C, 0x63, 0x31, 0xE5, 0x40, 0x7B, | |
| 1111 | 0xDF, 0x10, 0x13, 0x24, 0x15, 0xE5, 0x4B, 0x92, | |
| 1112 | 0xA1, 0x3E, 0xD0, 0xA8, 0x26, 0x7A, 0xE2, 0xF9, | |
| 1113 | 0x75, 0xA3, 0x85, 0x74, 0x1A, 0xB9, 0xCE, 0xF8, | |
| 1114 | 0x20, 0x31, 0x62, 0x3D, 0x55, 0xB1, 0xE4, 0x71 } | |
| 1115 | }; | |
| 1116 | #endif /* POLARSSL_CIPHER_MODE_CFB */ | |
| 1117 | ||
| 1118 | #if defined(POLARSSL_CIPHER_MODE_CTR) | |
| 1119 | /* | |
| 1120 | * AES-CTR test vectors from: | |
| 1121 | * | |
| 1122 | * http://www.faqs.org/rfcs/rfc3686.html | |
| 1123 | */ | |
| 1124 | ||
| 1125 | static const unsigned char aes_test_ctr_key[3][16] = | |
| 1126 | { | |
| 1127 | { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC, | |
| 1128 | 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E }, | |
| 1129 | { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7, | |
| 1130 | 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 }, | |
| 1131 | { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8, | |
| 1132 | 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC } | |
| 1133 | }; | |
| 1134 | ||
| 1135 | static const unsigned char aes_test_ctr_nonce_counter[3][16] = | |
| 1136 | { | |
| 1137 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, | |
| 1138 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, | |
| 1139 | { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59, | |
| 1140 | 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 }, | |
| 1141 | { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F, | |
| 1142 | 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 } | |
| 1143 | }; | |
| 1144 | ||
| 1145 | static const unsigned char aes_test_ctr_pt[3][48] = | |
| 1146 | { | |
| 1147 | { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62, | |
| 1148 | 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 }, | |
| 1149 | ||
| 1150 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1151 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | |
| 1152 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
| 1153 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }, | |
| 1154 | ||
| 1155 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1156 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | |
| 1157 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
| 1158 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, | |
| 1159 | 0x20, 0x21, 0x22, 0x23 } | |
| 1160 | }; | |
| 1161 | ||
| 1162 | static const unsigned char aes_test_ctr_ct[3][48] = | |
| 1163 | { | |
| 1164 | { 0xE4, 0x09, 0x5D, 0x4F, 0xB7, 0xA7, 0xB3, 0x79, | |
| 1165 | 0x2D, 0x61, 0x75, 0xA3, 0x26, 0x13, 0x11, 0xB8 }, | |
| 1166 | { 0x51, 0x04, 0xA1, 0x06, 0x16, 0x8A, 0x72, 0xD9, | |
| 1167 | 0x79, 0x0D, 0x41, 0xEE, 0x8E, 0xDA, 0xD3, 0x88, | |
| 1168 | 0xEB, 0x2E, 0x1E, 0xFC, 0x46, 0xDA, 0x57, 0xC8, | |
| 1169 | 0xFC, 0xE6, 0x30, 0xDF, 0x91, 0x41, 0xBE, 0x28 }, | |
| 1170 | { 0xC1, 0xCF, 0x48, 0xA8, 0x9F, 0x2F, 0xFD, 0xD9, | |
| 1171 | 0xCF, 0x46, 0x52, 0xE9, 0xEF, 0xDB, 0x72, 0xD7, | |
| 1172 | 0x45, 0x40, 0xA4, 0x2B, 0xDE, 0x6D, 0x78, 0x36, | |
| 1173 | 0xD5, 0x9A, 0x5C, 0xEA, 0xAE, 0xF3, 0x10, 0x53, | |
| 1174 | 0x25, 0xB2, 0x07, 0x2F } | |
| 1175 | }; | |
| 1176 | ||
| 1177 | static const int aes_test_ctr_len[3] = | |
| 1178 | { 16, 32, 36 }; | |
| 1179 | #endif /* POLARSSL_CIPHER_MODE_CTR */ | |
| 1180 | ||
| 1181 | /* | |
| 1182 | * Checkup routine | |
| 1183 | */ | |
| 1184 | int aes_self_test( int verbose ) | |
| 1185 | { | |
| 1186 | int ret = 0, i, j, u, v; | |
| 1187 | unsigned char key[32]; | |
| 1188 | unsigned char buf[64]; | |
| 1189 | unsigned char iv[16]; | |
| 1190 | #if defined(POLARSSL_CIPHER_MODE_CBC) | |
| 1191 | unsigned char prv[16]; | |
| 1192 | #endif | |
| 1193 | #if defined(POLARSSL_CIPHER_MODE_CTR) || defined(POLARSSL_CIPHER_MODE_CFB) | |
| 1194 | size_t offset; | |
| 1195 | #endif | |
| 1196 | #if defined(POLARSSL_CIPHER_MODE_CTR) | |
| 1197 | int len; | |
| 1198 | unsigned char nonce_counter[16]; | |
| 1199 | unsigned char stream_block[16]; | |
| 1200 | #endif | |
| 1201 | aes_context ctx; | |
| 1202 | ||
| 1203 | memset( key, 0, 32 ); | |
| 1204 | aes_init( &ctx ); | |
| 1205 | ||
| 1206 | /* | |
| 1207 | * ECB mode | |
| 1208 | */ | |
| 1209 | for( i = 0; i < 6; i++ ) | |
| 1210 | { | |
| 1211 | u = i >> 1; | |
| 1212 | v = i & 1; | |
| 1213 | ||
| 1214 | if( verbose != 0 ) | |
| 1215 | polarssl_printf( " AES-ECB-%3d (%s): ", 128 + u * 64, | |
| 1216 | ( v == AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1217 | ||
| 1218 | memset( buf, 0, 16 ); | |
| 1219 | ||
| 1220 | if( v == AES_DECRYPT ) | |
| 1221 | { | |
| 1222 | aes_setkey_dec( &ctx, key, 128 + u * 64 ); | |
| 1223 | ||
| 1224 | for( j = 0; j < 10000; j++ ) | |
| 1225 | aes_crypt_ecb( &ctx, v, buf, buf ); | |
| 1226 | ||
| 1227 | if( memcmp( buf, aes_test_ecb_dec[u], 16 ) != 0 ) | |
| 1228 | { | |
| 1229 | if( verbose != 0 ) | |
| 1230 | polarssl_printf( "failed\n" ); | |
| 1231 | ||
| 1232 | ret = 1; | |
| 1233 | goto exit; | |
| 1234 | } | |
| 1235 | } | |
| 1236 | else | |
| 1237 | { | |
| 1238 | aes_setkey_enc( &ctx, key, 128 + u * 64 ); | |
| 1239 | ||
| 1240 | for( j = 0; j < 10000; j++ ) | |
| 1241 | aes_crypt_ecb( &ctx, v, buf, buf ); | |
| 1242 | ||
| 1243 | if( memcmp( buf, aes_test_ecb_enc[u], 16 ) != 0 ) | |
| 1244 | { | |
| 1245 | if( verbose != 0 ) | |
| 1246 | polarssl_printf( "failed\n" ); | |
| 1247 | ||
| 1248 | ret = 1; | |
| 1249 | goto exit; | |
| 1250 | } | |
| 1251 | } | |
| 1252 | ||
| 1253 | if( verbose != 0 ) | |
| 1254 | polarssl_printf( "passed\n" ); | |
| 1255 | } | |
| 1256 | ||
| 1257 | if( verbose != 0 ) | |
| 1258 | polarssl_printf( "\n" ); | |
| 1259 | ||
| 1260 | #if defined(POLARSSL_CIPHER_MODE_CBC) | |
| 1261 | /* | |
| 1262 | * CBC mode | |
| 1263 | */ | |
| 1264 | for( i = 0; i < 6; i++ ) | |
| 1265 | { | |
| 1266 | u = i >> 1; | |
| 1267 | v = i & 1; | |
| 1268 | ||
| 1269 | if( verbose != 0 ) | |
| 1270 | polarssl_printf( " AES-CBC-%3d (%s): ", 128 + u * 64, | |
| 1271 | ( v == AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1272 | ||
| 1273 | memset( iv , 0, 16 ); | |
| 1274 | memset( prv, 0, 16 ); | |
| 1275 | memset( buf, 0, 16 ); | |
| 1276 | ||
| 1277 | if( v == AES_DECRYPT ) | |
| 1278 | { | |
| 1279 | aes_setkey_dec( &ctx, key, 128 + u * 64 ); | |
| 1280 | ||
| 1281 | for( j = 0; j < 10000; j++ ) | |
| 1282 | aes_crypt_cbc( &ctx, v, 16, iv, buf, buf ); | |
| 1283 | ||
| 1284 | if( memcmp( buf, aes_test_cbc_dec[u], 16 ) != 0 ) | |
| 1285 | { | |
| 1286 | if( verbose != 0 ) | |
| 1287 | polarssl_printf( "failed\n" ); | |
| 1288 | ||
| 1289 | ret = 1; | |
| 1290 | goto exit; | |
| 1291 | } | |
| 1292 | } | |
| 1293 | else | |
| 1294 | { | |
| 1295 | aes_setkey_enc( &ctx, key, 128 + u * 64 ); | |
| 1296 | ||
| 1297 | for( j = 0; j < 10000; j++ ) | |
| 1298 | { | |
| 1299 | unsigned char tmp[16]; | |
| 1300 | ||
| 1301 | aes_crypt_cbc( &ctx, v, 16, iv, buf, buf ); | |
| 1302 | ||
| 1303 | memcpy( tmp, prv, 16 ); | |
| 1304 | memcpy( prv, buf, 16 ); | |
| 1305 | memcpy( buf, tmp, 16 ); | |
| 1306 | } | |
| 1307 | ||
| 1308 | if( memcmp( prv, aes_test_cbc_enc[u], 16 ) != 0 ) | |
| 1309 | { | |
| 1310 | if( verbose != 0 ) | |
| 1311 | polarssl_printf( "failed\n" ); | |
| 1312 | ||
| 1313 | ret = 1; | |
| 1314 | goto exit; | |
| 1315 | } | |
| 1316 | } | |
| 1317 | ||
| 1318 | if( verbose != 0 ) | |
| 1319 | polarssl_printf( "passed\n" ); | |
| 1320 | } | |
| 1321 | ||
| 1322 | if( verbose != 0 ) | |
| 1323 | polarssl_printf( "\n" ); | |
| 1324 | #endif /* POLARSSL_CIPHER_MODE_CBC */ | |
| 1325 | ||
| 1326 | #if defined(POLARSSL_CIPHER_MODE_CFB) | |
| 1327 | /* | |
| 1328 | * CFB128 mode | |
| 1329 | */ | |
| 1330 | for( i = 0; i < 6; i++ ) | |
| 1331 | { | |
| 1332 | u = i >> 1; | |
| 1333 | v = i & 1; | |
| 1334 | ||
| 1335 | if( verbose != 0 ) | |
| 1336 | polarssl_printf( " AES-CFB128-%3d (%s): ", 128 + u * 64, | |
| 1337 | ( v == AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1338 | ||
| 1339 | memcpy( iv, aes_test_cfb128_iv, 16 ); | |
| 1340 | memcpy( key, aes_test_cfb128_key[u], 16 + u * 8 ); | |
| 1341 | ||
| 1342 | offset = 0; | |
| 1343 | aes_setkey_enc( &ctx, key, 128 + u * 64 ); | |
| 1344 | ||
| 1345 | if( v == AES_DECRYPT ) | |
| 1346 | { | |
| 1347 | memcpy( buf, aes_test_cfb128_ct[u], 64 ); | |
| 1348 | aes_crypt_cfb128( &ctx, v, 64, &offset, iv, buf, buf ); | |
| 1349 | ||
| 1350 | if( memcmp( buf, aes_test_cfb128_pt, 64 ) != 0 ) | |
| 1351 | { | |
| 1352 | if( verbose != 0 ) | |
| 1353 | polarssl_printf( "failed\n" ); | |
| 1354 | ||
| 1355 | ret = 1; | |
| 1356 | goto exit; | |
| 1357 | } | |
| 1358 | } | |
| 1359 | else | |
| 1360 | { | |
| 1361 | memcpy( buf, aes_test_cfb128_pt, 64 ); | |
| 1362 | aes_crypt_cfb128( &ctx, v, 64, &offset, iv, buf, buf ); | |
| 1363 | ||
| 1364 | if( memcmp( buf, aes_test_cfb128_ct[u], 64 ) != 0 ) | |
| 1365 | { | |
| 1366 | if( verbose != 0 ) | |
| 1367 | polarssl_printf( "failed\n" ); | |
| 1368 | ||
| 1369 | ret = 1; | |
| 1370 | goto exit; | |
| 1371 | } | |
| 1372 | } | |
| 1373 | ||
| 1374 | if( verbose != 0 ) | |
| 1375 | polarssl_printf( "passed\n" ); | |
| 1376 | } | |
| 1377 | ||
| 1378 | if( verbose != 0 ) | |
| 1379 | polarssl_printf( "\n" ); | |
| 1380 | #endif /* POLARSSL_CIPHER_MODE_CFB */ | |
| 1381 | ||
| 1382 | #if defined(POLARSSL_CIPHER_MODE_CTR) | |
| 1383 | /* | |
| 1384 | * CTR mode | |
| 1385 | */ | |
| 1386 | for( i = 0; i < 6; i++ ) | |
| 1387 | { | |
| 1388 | u = i >> 1; | |
| 1389 | v = i & 1; | |
| 1390 | ||
| 1391 | if( verbose != 0 ) | |
| 1392 | polarssl_printf( " AES-CTR-128 (%s): ", | |
| 1393 | ( v == AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1394 | ||
| 1395 | memcpy( nonce_counter, aes_test_ctr_nonce_counter[u], 16 ); | |
| 1396 | memcpy( key, aes_test_ctr_key[u], 16 ); | |
| 1397 | ||
| 1398 | offset = 0; | |
| 1399 | aes_setkey_enc( &ctx, key, 128 ); | |
| 1400 | ||
| 1401 | if( v == AES_DECRYPT ) | |
| 1402 | { | |
| 1403 | len = aes_test_ctr_len[u]; | |
| 1404 | memcpy( buf, aes_test_ctr_ct[u], len ); | |
| 1405 | ||
| 1406 | aes_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, | |
| 1407 | buf, buf ); | |
| 1408 | ||
| 1409 | if( memcmp( buf, aes_test_ctr_pt[u], len ) != 0 ) | |
| 1410 | { | |
| 1411 | if( verbose != 0 ) | |
| 1412 | polarssl_printf( "failed\n" ); | |
| 1413 | ||
| 1414 | ret = 1; | |
| 1415 | goto exit; | |
| 1416 | } | |
| 1417 | } | |
| 1418 | else | |
| 1419 | { | |
| 1420 | len = aes_test_ctr_len[u]; | |
| 1421 | memcpy( buf, aes_test_ctr_pt[u], len ); | |
| 1422 | ||
| 1423 | aes_crypt_ctr( &ctx, len, &offset, nonce_counter, stream_block, | |
| 1424 | buf, buf ); | |
| 1425 | ||
| 1426 | if( memcmp( buf, aes_test_ctr_ct[u], len ) != 0 ) | |
| 1427 | { | |
| 1428 | if( verbose != 0 ) | |
| 1429 | polarssl_printf( "failed\n" ); | |
| 1430 | ||
| 1431 | ret = 1; | |
| 1432 | goto exit; | |
| 1433 | } | |
| 1434 | } | |
| 1435 | ||
| 1436 | if( verbose != 0 ) | |
| 1437 | polarssl_printf( "passed\n" ); | |
| 1438 | } | |
| 1439 | ||
| 1440 | if( verbose != 0 ) | |
| 1441 | polarssl_printf( "\n" ); | |
| 1442 | #endif /* POLARSSL_CIPHER_MODE_CTR */ | |
| 1443 | ||
| 1444 | ret = 0; | |
| 1445 | ||
| 1446 | exit: | |
| 1447 | aes_free( &ctx ); | |
| 1448 | ||
| 1449 | return( ret ); | |
| 1450 | } | |
| 1451 | ||
| 1452 | #endif /* POLARSSL_SELF_TEST */ | |
| 1453 | ||
| 1454 | #endif /* POLARSSL_AES_C */ |