projects / proxmark3-svn / blame
| Commit | Line | Data |
|---|---|---|
| 700d8687 OM |
1 | /* |
| 2 | * FIPS-197 compliant AES implementation | |
| 3 | * | |
| 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved | |
| 5 | * SPDX-License-Identifier: GPL-2.0 | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License along | |
| 18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | * | |
| 21 | * This file is part of mbed TLS (https://tls.mbed.org) | |
| 22 | */ | |
| 23 | /* | |
| 24 | * The AES block cipher was designed by Vincent Rijmen and Joan Daemen. | |
| 25 | * | |
| 26 | * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf | |
| 27 | * http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf | |
| 28 | */ | |
| 29 | ||
| 30 | #if !defined(MBEDTLS_CONFIG_FILE) | |
| 31 | #include "mbedtls/config.h" | |
| 32 | #else | |
| 33 | #include MBEDTLS_CONFIG_FILE | |
| 34 | #endif | |
| 35 | ||
| 36 | #if defined(MBEDTLS_AES_C) | |
| 37 | ||
| 38 | #include <string.h> | |
| 39 | ||
| 40 | #include "mbedtls/aes.h" | |
| 41 | #include "mbedtls/platform_util.h" | |
| 42 | #if defined(MBEDTLS_PADLOCK_C) | |
| 43 | #include "mbedtls/padlock.h" | |
| 44 | #endif | |
| 45 | #if defined(MBEDTLS_AESNI_C) | |
| 46 | #include "mbedtls/aesni.h" | |
| 47 | #endif | |
| 48 | ||
| 49 | #if defined(MBEDTLS_SELF_TEST) | |
| 50 | #if defined(MBEDTLS_PLATFORM_C) | |
| 51 | #include "mbedtls/platform.h" | |
| 52 | #else | |
| 53 | #include <stdio.h> | |
| 54 | #define mbedtls_printf printf | |
| 55 | #endif /* MBEDTLS_PLATFORM_C */ | |
| 56 | #endif /* MBEDTLS_SELF_TEST */ | |
| 57 | ||
| 58 | #if !defined(MBEDTLS_AES_ALT) | |
| 59 | ||
| 60 | /* | |
| 61 | * 32-bit integer manipulation macros (little endian) | |
| 62 | */ | |
| 63 | #ifndef GET_UINT32_LE | |
| 64 | #define GET_UINT32_LE(n,b,i) \ | |
| 65 | { \ | |
| 66 | (n) = ( (uint32_t) (b)[(i) ] ) \ | |
| 67 | | ( (uint32_t) (b)[(i) + 1] << 8 ) \ | |
| 68 | | ( (uint32_t) (b)[(i) + 2] << 16 ) \ | |
| 69 | | ( (uint32_t) (b)[(i) + 3] << 24 ); \ | |
| 70 | } | |
| 71 | #endif | |
| 72 | ||
| 73 | #ifndef PUT_UINT32_LE | |
| 74 | #define PUT_UINT32_LE(n,b,i) \ | |
| 75 | { \ | |
| 76 | (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \ | |
| 77 | (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \ | |
| 78 | (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \ | |
| 79 | (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \ | |
| 80 | } | |
| 81 | #endif | |
| 82 | ||
| 83 | #if defined(MBEDTLS_PADLOCK_C) && \ | |
| 84 | ( defined(MBEDTLS_HAVE_X86) || defined(MBEDTLS_PADLOCK_ALIGN16) ) | |
| 85 | static int aes_padlock_ace = -1; | |
| 86 | #endif | |
| 87 | ||
| 88 | #if defined(MBEDTLS_AES_ROM_TABLES) | |
| 89 | /* | |
| 90 | * Forward S-box | |
| 91 | */ | |
| 92 | static const unsigned char FSb[256] = | |
| 93 | { | |
| 94 | 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, | |
| 95 | 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76, | |
| 96 | 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, | |
| 97 | 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0, | |
| 98 | 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, | |
| 99 | 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15, | |
| 100 | 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, | |
| 101 | 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75, | |
| 102 | 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, | |
| 103 | 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84, | |
| 104 | 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, | |
| 105 | 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF, | |
| 106 | 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, | |
| 107 | 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8, | |
| 108 | 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, | |
| 109 | 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2, | |
| 110 | 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, | |
| 111 | 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73, | |
| 112 | 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, | |
| 113 | 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB, | |
| 114 | 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, | |
| 115 | 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79, | |
| 116 | 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, | |
| 117 | 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08, | |
| 118 | 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, | |
| 119 | 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A, | |
| 120 | 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, | |
| 121 | 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E, | |
| 122 | 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, | |
| 123 | 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF, | |
| 124 | 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, | |
| 125 | 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16 | |
| 126 | }; | |
| 127 | ||
| 128 | /* | |
| 129 | * Forward tables | |
| 130 | */ | |
| 131 | #define FT \ | |
| 132 | \ | |
| 133 | V(A5,63,63,C6), V(84,7C,7C,F8), V(99,77,77,EE), V(8D,7B,7B,F6), \ | |
| 134 | V(0D,F2,F2,FF), V(BD,6B,6B,D6), V(B1,6F,6F,DE), V(54,C5,C5,91), \ | |
| 135 | V(50,30,30,60), V(03,01,01,02), V(A9,67,67,CE), V(7D,2B,2B,56), \ | |
| 136 | V(19,FE,FE,E7), V(62,D7,D7,B5), V(E6,AB,AB,4D), V(9A,76,76,EC), \ | |
| 137 | V(45,CA,CA,8F), V(9D,82,82,1F), V(40,C9,C9,89), V(87,7D,7D,FA), \ | |
| 138 | V(15,FA,FA,EF), V(EB,59,59,B2), V(C9,47,47,8E), V(0B,F0,F0,FB), \ | |
| 139 | V(EC,AD,AD,41), V(67,D4,D4,B3), V(FD,A2,A2,5F), V(EA,AF,AF,45), \ | |
| 140 | V(BF,9C,9C,23), V(F7,A4,A4,53), V(96,72,72,E4), V(5B,C0,C0,9B), \ | |
| 141 | V(C2,B7,B7,75), V(1C,FD,FD,E1), V(AE,93,93,3D), V(6A,26,26,4C), \ | |
| 142 | V(5A,36,36,6C), V(41,3F,3F,7E), V(02,F7,F7,F5), V(4F,CC,CC,83), \ | |
| 143 | V(5C,34,34,68), V(F4,A5,A5,51), V(34,E5,E5,D1), V(08,F1,F1,F9), \ | |
| 144 | V(93,71,71,E2), V(73,D8,D8,AB), V(53,31,31,62), V(3F,15,15,2A), \ | |
| 145 | V(0C,04,04,08), V(52,C7,C7,95), V(65,23,23,46), V(5E,C3,C3,9D), \ | |
| 146 | V(28,18,18,30), V(A1,96,96,37), V(0F,05,05,0A), V(B5,9A,9A,2F), \ | |
| 147 | V(09,07,07,0E), V(36,12,12,24), V(9B,80,80,1B), V(3D,E2,E2,DF), \ | |
| 148 | V(26,EB,EB,CD), V(69,27,27,4E), V(CD,B2,B2,7F), V(9F,75,75,EA), \ | |
| 149 | V(1B,09,09,12), V(9E,83,83,1D), V(74,2C,2C,58), V(2E,1A,1A,34), \ | |
| 150 | V(2D,1B,1B,36), V(B2,6E,6E,DC), V(EE,5A,5A,B4), V(FB,A0,A0,5B), \ | |
| 151 | V(F6,52,52,A4), V(4D,3B,3B,76), V(61,D6,D6,B7), V(CE,B3,B3,7D), \ | |
| 152 | V(7B,29,29,52), V(3E,E3,E3,DD), V(71,2F,2F,5E), V(97,84,84,13), \ | |
| 153 | V(F5,53,53,A6), V(68,D1,D1,B9), V(00,00,00,00), V(2C,ED,ED,C1), \ | |
| 154 | V(60,20,20,40), V(1F,FC,FC,E3), V(C8,B1,B1,79), V(ED,5B,5B,B6), \ | |
| 155 | V(BE,6A,6A,D4), V(46,CB,CB,8D), V(D9,BE,BE,67), V(4B,39,39,72), \ | |
| 156 | V(DE,4A,4A,94), V(D4,4C,4C,98), V(E8,58,58,B0), V(4A,CF,CF,85), \ | |
| 157 | V(6B,D0,D0,BB), V(2A,EF,EF,C5), V(E5,AA,AA,4F), V(16,FB,FB,ED), \ | |
| 158 | V(C5,43,43,86), V(D7,4D,4D,9A), V(55,33,33,66), V(94,85,85,11), \ | |
| 159 | V(CF,45,45,8A), V(10,F9,F9,E9), V(06,02,02,04), V(81,7F,7F,FE), \ | |
| 160 | V(F0,50,50,A0), V(44,3C,3C,78), V(BA,9F,9F,25), V(E3,A8,A8,4B), \ | |
| 161 | V(F3,51,51,A2), V(FE,A3,A3,5D), V(C0,40,40,80), V(8A,8F,8F,05), \ | |
| 162 | V(AD,92,92,3F), V(BC,9D,9D,21), V(48,38,38,70), V(04,F5,F5,F1), \ | |
| 163 | V(DF,BC,BC,63), V(C1,B6,B6,77), V(75,DA,DA,AF), V(63,21,21,42), \ | |
| 164 | V(30,10,10,20), V(1A,FF,FF,E5), V(0E,F3,F3,FD), V(6D,D2,D2,BF), \ | |
| 165 | V(4C,CD,CD,81), V(14,0C,0C,18), V(35,13,13,26), V(2F,EC,EC,C3), \ | |
| 166 | V(E1,5F,5F,BE), V(A2,97,97,35), V(CC,44,44,88), V(39,17,17,2E), \ | |
| 167 | V(57,C4,C4,93), V(F2,A7,A7,55), V(82,7E,7E,FC), V(47,3D,3D,7A), \ | |
| 168 | V(AC,64,64,C8), V(E7,5D,5D,BA), V(2B,19,19,32), V(95,73,73,E6), \ | |
| 169 | V(A0,60,60,C0), V(98,81,81,19), V(D1,4F,4F,9E), V(7F,DC,DC,A3), \ | |
| 170 | V(66,22,22,44), V(7E,2A,2A,54), V(AB,90,90,3B), V(83,88,88,0B), \ | |
| 171 | V(CA,46,46,8C), V(29,EE,EE,C7), V(D3,B8,B8,6B), V(3C,14,14,28), \ | |
| 172 | V(79,DE,DE,A7), V(E2,5E,5E,BC), V(1D,0B,0B,16), V(76,DB,DB,AD), \ | |
| 173 | V(3B,E0,E0,DB), V(56,32,32,64), V(4E,3A,3A,74), V(1E,0A,0A,14), \ | |
| 174 | V(DB,49,49,92), V(0A,06,06,0C), V(6C,24,24,48), V(E4,5C,5C,B8), \ | |
| 175 | V(5D,C2,C2,9F), V(6E,D3,D3,BD), V(EF,AC,AC,43), V(A6,62,62,C4), \ | |
| 176 | V(A8,91,91,39), V(A4,95,95,31), V(37,E4,E4,D3), V(8B,79,79,F2), \ | |
| 177 | V(32,E7,E7,D5), V(43,C8,C8,8B), V(59,37,37,6E), V(B7,6D,6D,DA), \ | |
| 178 | V(8C,8D,8D,01), V(64,D5,D5,B1), V(D2,4E,4E,9C), V(E0,A9,A9,49), \ | |
| 179 | V(B4,6C,6C,D8), V(FA,56,56,AC), V(07,F4,F4,F3), V(25,EA,EA,CF), \ | |
| 180 | V(AF,65,65,CA), V(8E,7A,7A,F4), V(E9,AE,AE,47), V(18,08,08,10), \ | |
| 181 | V(D5,BA,BA,6F), V(88,78,78,F0), V(6F,25,25,4A), V(72,2E,2E,5C), \ | |
| 182 | V(24,1C,1C,38), V(F1,A6,A6,57), V(C7,B4,B4,73), V(51,C6,C6,97), \ | |
| 183 | V(23,E8,E8,CB), V(7C,DD,DD,A1), V(9C,74,74,E8), V(21,1F,1F,3E), \ | |
| 184 | V(DD,4B,4B,96), V(DC,BD,BD,61), V(86,8B,8B,0D), V(85,8A,8A,0F), \ | |
| 185 | V(90,70,70,E0), V(42,3E,3E,7C), V(C4,B5,B5,71), V(AA,66,66,CC), \ | |
| 186 | V(D8,48,48,90), V(05,03,03,06), V(01,F6,F6,F7), V(12,0E,0E,1C), \ | |
| 187 | V(A3,61,61,C2), V(5F,35,35,6A), V(F9,57,57,AE), V(D0,B9,B9,69), \ | |
| 188 | V(91,86,86,17), V(58,C1,C1,99), V(27,1D,1D,3A), V(B9,9E,9E,27), \ | |
| 189 | V(38,E1,E1,D9), V(13,F8,F8,EB), V(B3,98,98,2B), V(33,11,11,22), \ | |
| 190 | V(BB,69,69,D2), V(70,D9,D9,A9), V(89,8E,8E,07), V(A7,94,94,33), \ | |
| 191 | V(B6,9B,9B,2D), V(22,1E,1E,3C), V(92,87,87,15), V(20,E9,E9,C9), \ | |
| 192 | V(49,CE,CE,87), V(FF,55,55,AA), V(78,28,28,50), V(7A,DF,DF,A5), \ | |
| 193 | V(8F,8C,8C,03), V(F8,A1,A1,59), V(80,89,89,09), V(17,0D,0D,1A), \ | |
| 194 | V(DA,BF,BF,65), V(31,E6,E6,D7), V(C6,42,42,84), V(B8,68,68,D0), \ | |
| 195 | V(C3,41,41,82), V(B0,99,99,29), V(77,2D,2D,5A), V(11,0F,0F,1E), \ | |
| 196 | V(CB,B0,B0,7B), V(FC,54,54,A8), V(D6,BB,BB,6D), V(3A,16,16,2C) | |
| 197 | ||
| 198 | #define V(a,b,c,d) 0x##a##b##c##d | |
| 199 | static const uint32_t FT0[256] = { FT }; | |
| 200 | #undef V | |
| 201 | ||
| 202 | #if !defined(MBEDTLS_AES_FEWER_TABLES) | |
| 203 | ||
| 204 | #define V(a,b,c,d) 0x##b##c##d##a | |
| 205 | static const uint32_t FT1[256] = { FT }; | |
| 206 | #undef V | |
| 207 | ||
| 208 | #define V(a,b,c,d) 0x##c##d##a##b | |
| 209 | static const uint32_t FT2[256] = { FT }; | |
| 210 | #undef V | |
| 211 | ||
| 212 | #define V(a,b,c,d) 0x##d##a##b##c | |
| 213 | static const uint32_t FT3[256] = { FT }; | |
| 214 | #undef V | |
| 215 | ||
| 216 | #endif /* !MBEDTLS_AES_FEWER_TABLES */ | |
| 217 | ||
| 218 | #undef FT | |
| 219 | ||
| 220 | /* | |
| 221 | * Reverse S-box | |
| 222 | */ | |
| 223 | static const unsigned char RSb[256] = | |
| 224 | { | |
| 225 | 0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, | |
| 226 | 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB, | |
| 227 | 0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, | |
| 228 | 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB, | |
| 229 | 0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, | |
| 230 | 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E, | |
| 231 | 0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, | |
| 232 | 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25, | |
| 233 | 0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, | |
| 234 | 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92, | |
| 235 | 0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, | |
| 236 | 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84, | |
| 237 | 0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, | |
| 238 | 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06, | |
| 239 | 0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, | |
| 240 | 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B, | |
| 241 | 0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, | |
| 242 | 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73, | |
| 243 | 0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, | |
| 244 | 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E, | |
| 245 | 0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, | |
| 246 | 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B, | |
| 247 | 0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, | |
| 248 | 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4, | |
| 249 | 0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, | |
| 250 | 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F, | |
| 251 | 0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, | |
| 252 | 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF, | |
| 253 | 0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, | |
| 254 | 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61, | |
| 255 | 0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, | |
| 256 | 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D | |
| 257 | }; | |
| 258 | ||
| 259 | /* | |
| 260 | * Reverse tables | |
| 261 | */ | |
| 262 | #define RT \ | |
| 263 | \ | |
| 264 | V(50,A7,F4,51), V(53,65,41,7E), V(C3,A4,17,1A), V(96,5E,27,3A), \ | |
| 265 | V(CB,6B,AB,3B), V(F1,45,9D,1F), V(AB,58,FA,AC), V(93,03,E3,4B), \ | |
| 266 | V(55,FA,30,20), V(F6,6D,76,AD), V(91,76,CC,88), V(25,4C,02,F5), \ | |
| 267 | V(FC,D7,E5,4F), V(D7,CB,2A,C5), V(80,44,35,26), V(8F,A3,62,B5), \ | |
| 268 | V(49,5A,B1,DE), V(67,1B,BA,25), V(98,0E,EA,45), V(E1,C0,FE,5D), \ | |
| 269 | V(02,75,2F,C3), V(12,F0,4C,81), V(A3,97,46,8D), V(C6,F9,D3,6B), \ | |
| 270 | V(E7,5F,8F,03), V(95,9C,92,15), V(EB,7A,6D,BF), V(DA,59,52,95), \ | |
| 271 | V(2D,83,BE,D4), V(D3,21,74,58), V(29,69,E0,49), V(44,C8,C9,8E), \ | |
| 272 | V(6A,89,C2,75), V(78,79,8E,F4), V(6B,3E,58,99), V(DD,71,B9,27), \ | |
| 273 | V(B6,4F,E1,BE), V(17,AD,88,F0), V(66,AC,20,C9), V(B4,3A,CE,7D), \ | |
| 274 | V(18,4A,DF,63), V(82,31,1A,E5), V(60,33,51,97), V(45,7F,53,62), \ | |
| 275 | V(E0,77,64,B1), V(84,AE,6B,BB), V(1C,A0,81,FE), V(94,2B,08,F9), \ | |
| 276 | V(58,68,48,70), V(19,FD,45,8F), V(87,6C,DE,94), V(B7,F8,7B,52), \ | |
| 277 | V(23,D3,73,AB), V(E2,02,4B,72), V(57,8F,1F,E3), V(2A,AB,55,66), \ | |
| 278 | V(07,28,EB,B2), V(03,C2,B5,2F), V(9A,7B,C5,86), V(A5,08,37,D3), \ | |
| 279 | V(F2,87,28,30), V(B2,A5,BF,23), V(BA,6A,03,02), V(5C,82,16,ED), \ | |
| 280 | V(2B,1C,CF,8A), V(92,B4,79,A7), V(F0,F2,07,F3), V(A1,E2,69,4E), \ | |
| 281 | V(CD,F4,DA,65), V(D5,BE,05,06), V(1F,62,34,D1), V(8A,FE,A6,C4), \ | |
| 282 | V(9D,53,2E,34), V(A0,55,F3,A2), V(32,E1,8A,05), V(75,EB,F6,A4), \ | |
| 283 | V(39,EC,83,0B), V(AA,EF,60,40), V(06,9F,71,5E), V(51,10,6E,BD), \ | |
| 284 | V(F9,8A,21,3E), V(3D,06,DD,96), V(AE,05,3E,DD), V(46,BD,E6,4D), \ | |
| 285 | V(B5,8D,54,91), V(05,5D,C4,71), V(6F,D4,06,04), V(FF,15,50,60), \ | |
| 286 | V(24,FB,98,19), V(97,E9,BD,D6), V(CC,43,40,89), V(77,9E,D9,67), \ | |
| 287 | V(BD,42,E8,B0), V(88,8B,89,07), V(38,5B,19,E7), V(DB,EE,C8,79), \ | |
| 288 | V(47,0A,7C,A1), V(E9,0F,42,7C), V(C9,1E,84,F8), V(00,00,00,00), \ | |
| 289 | V(83,86,80,09), V(48,ED,2B,32), V(AC,70,11,1E), V(4E,72,5A,6C), \ | |
| 290 | V(FB,FF,0E,FD), V(56,38,85,0F), V(1E,D5,AE,3D), V(27,39,2D,36), \ | |
| 291 | V(64,D9,0F,0A), V(21,A6,5C,68), V(D1,54,5B,9B), V(3A,2E,36,24), \ | |
| 292 | V(B1,67,0A,0C), V(0F,E7,57,93), V(D2,96,EE,B4), V(9E,91,9B,1B), \ | |
| 293 | V(4F,C5,C0,80), V(A2,20,DC,61), V(69,4B,77,5A), V(16,1A,12,1C), \ | |
| 294 | V(0A,BA,93,E2), V(E5,2A,A0,C0), V(43,E0,22,3C), V(1D,17,1B,12), \ | |
| 295 | V(0B,0D,09,0E), V(AD,C7,8B,F2), V(B9,A8,B6,2D), V(C8,A9,1E,14), \ | |
| 296 | V(85,19,F1,57), V(4C,07,75,AF), V(BB,DD,99,EE), V(FD,60,7F,A3), \ | |
| 297 | V(9F,26,01,F7), V(BC,F5,72,5C), V(C5,3B,66,44), V(34,7E,FB,5B), \ | |
| 298 | V(76,29,43,8B), V(DC,C6,23,CB), V(68,FC,ED,B6), V(63,F1,E4,B8), \ | |
| 299 | V(CA,DC,31,D7), V(10,85,63,42), V(40,22,97,13), V(20,11,C6,84), \ | |
| 300 | V(7D,24,4A,85), V(F8,3D,BB,D2), V(11,32,F9,AE), V(6D,A1,29,C7), \ | |
| 301 | V(4B,2F,9E,1D), V(F3,30,B2,DC), V(EC,52,86,0D), V(D0,E3,C1,77), \ | |
| 302 | V(6C,16,B3,2B), V(99,B9,70,A9), V(FA,48,94,11), V(22,64,E9,47), \ | |
| 303 | V(C4,8C,FC,A8), V(1A,3F,F0,A0), V(D8,2C,7D,56), V(EF,90,33,22), \ | |
| 304 | V(C7,4E,49,87), V(C1,D1,38,D9), V(FE,A2,CA,8C), V(36,0B,D4,98), \ | |
| 305 | V(CF,81,F5,A6), V(28,DE,7A,A5), V(26,8E,B7,DA), V(A4,BF,AD,3F), \ | |
| 306 | V(E4,9D,3A,2C), V(0D,92,78,50), V(9B,CC,5F,6A), V(62,46,7E,54), \ | |
| 307 | V(C2,13,8D,F6), V(E8,B8,D8,90), V(5E,F7,39,2E), V(F5,AF,C3,82), \ | |
| 308 | V(BE,80,5D,9F), V(7C,93,D0,69), V(A9,2D,D5,6F), V(B3,12,25,CF), \ | |
| 309 | V(3B,99,AC,C8), V(A7,7D,18,10), V(6E,63,9C,E8), V(7B,BB,3B,DB), \ | |
| 310 | V(09,78,26,CD), V(F4,18,59,6E), V(01,B7,9A,EC), V(A8,9A,4F,83), \ | |
| 311 | V(65,6E,95,E6), V(7E,E6,FF,AA), V(08,CF,BC,21), V(E6,E8,15,EF), \ | |
| 312 | V(D9,9B,E7,BA), V(CE,36,6F,4A), V(D4,09,9F,EA), V(D6,7C,B0,29), \ | |
| 313 | V(AF,B2,A4,31), V(31,23,3F,2A), V(30,94,A5,C6), V(C0,66,A2,35), \ | |
| 314 | V(37,BC,4E,74), V(A6,CA,82,FC), V(B0,D0,90,E0), V(15,D8,A7,33), \ | |
| 315 | V(4A,98,04,F1), V(F7,DA,EC,41), V(0E,50,CD,7F), V(2F,F6,91,17), \ | |
| 316 | V(8D,D6,4D,76), V(4D,B0,EF,43), V(54,4D,AA,CC), V(DF,04,96,E4), \ | |
| 317 | V(E3,B5,D1,9E), V(1B,88,6A,4C), V(B8,1F,2C,C1), V(7F,51,65,46), \ | |
| 318 | V(04,EA,5E,9D), V(5D,35,8C,01), V(73,74,87,FA), V(2E,41,0B,FB), \ | |
| 319 | V(5A,1D,67,B3), V(52,D2,DB,92), V(33,56,10,E9), V(13,47,D6,6D), \ | |
| 320 | V(8C,61,D7,9A), V(7A,0C,A1,37), V(8E,14,F8,59), V(89,3C,13,EB), \ | |
| 321 | V(EE,27,A9,CE), V(35,C9,61,B7), V(ED,E5,1C,E1), V(3C,B1,47,7A), \ | |
| 322 | V(59,DF,D2,9C), V(3F,73,F2,55), V(79,CE,14,18), V(BF,37,C7,73), \ | |
| 323 | V(EA,CD,F7,53), V(5B,AA,FD,5F), V(14,6F,3D,DF), V(86,DB,44,78), \ | |
| 324 | V(81,F3,AF,CA), V(3E,C4,68,B9), V(2C,34,24,38), V(5F,40,A3,C2), \ | |
| 325 | V(72,C3,1D,16), V(0C,25,E2,BC), V(8B,49,3C,28), V(41,95,0D,FF), \ | |
| 326 | V(71,01,A8,39), V(DE,B3,0C,08), V(9C,E4,B4,D8), V(90,C1,56,64), \ | |
| 327 | V(61,84,CB,7B), V(70,B6,32,D5), V(74,5C,6C,48), V(42,57,B8,D0) | |
| 328 | ||
| 329 | #define V(a,b,c,d) 0x##a##b##c##d | |
| 330 | static const uint32_t RT0[256] = { RT }; | |
| 331 | #undef V | |
| 332 | ||
| 333 | #if !defined(MBEDTLS_AES_FEWER_TABLES) | |
| 334 | ||
| 335 | #define V(a,b,c,d) 0x##b##c##d##a | |
| 336 | static const uint32_t RT1[256] = { RT }; | |
| 337 | #undef V | |
| 338 | ||
| 339 | #define V(a,b,c,d) 0x##c##d##a##b | |
| 340 | static const uint32_t RT2[256] = { RT }; | |
| 341 | #undef V | |
| 342 | ||
| 343 | #define V(a,b,c,d) 0x##d##a##b##c | |
| 344 | static const uint32_t RT3[256] = { RT }; | |
| 345 | #undef V | |
| 346 | ||
| 347 | #endif /* !MBEDTLS_AES_FEWER_TABLES */ | |
| 348 | ||
| 349 | #undef RT | |
| 350 | ||
| 351 | /* | |
| 352 | * Round constants | |
| 353 | */ | |
| 354 | static const uint32_t RCON[10] = | |
| 355 | { | |
| 356 | 0x00000001, 0x00000002, 0x00000004, 0x00000008, | |
| 357 | 0x00000010, 0x00000020, 0x00000040, 0x00000080, | |
| 358 | 0x0000001B, 0x00000036 | |
| 359 | }; | |
| 360 | ||
| 361 | #else /* MBEDTLS_AES_ROM_TABLES */ | |
| 362 | ||
| 363 | /* | |
| 364 | * Forward S-box & tables | |
| 365 | */ | |
| 366 | static unsigned char FSb[256]; | |
| 367 | static uint32_t FT0[256]; | |
| 368 | #if !defined(MBEDTLS_AES_FEWER_TABLES) | |
| 369 | static uint32_t FT1[256]; | |
| 370 | static uint32_t FT2[256]; | |
| 371 | static uint32_t FT3[256]; | |
| 372 | #endif /* !MBEDTLS_AES_FEWER_TABLES */ | |
| 373 | ||
| 374 | /* | |
| 375 | * Reverse S-box & tables | |
| 376 | */ | |
| 377 | static unsigned char RSb[256]; | |
| 378 | static uint32_t RT0[256]; | |
| 379 | #if !defined(MBEDTLS_AES_FEWER_TABLES) | |
| 380 | static uint32_t RT1[256]; | |
| 381 | static uint32_t RT2[256]; | |
| 382 | static uint32_t RT3[256]; | |
| 383 | #endif /* !MBEDTLS_AES_FEWER_TABLES */ | |
| 384 | ||
| 385 | /* | |
| 386 | * Round constants | |
| 387 | */ | |
| 388 | static uint32_t RCON[10]; | |
| 389 | ||
| 390 | /* | |
| 391 | * Tables generation code | |
| 392 | */ | |
| 393 | #define ROTL8(x) ( ( x << 8 ) & 0xFFFFFFFF ) | ( x >> 24 ) | |
| 394 | #define XTIME(x) ( ( x << 1 ) ^ ( ( x & 0x80 ) ? 0x1B : 0x00 ) ) | |
| 395 | #define MUL(x,y) ( ( x && y ) ? pow[(log[x]+log[y]) % 255] : 0 ) | |
| 396 | ||
| 397 | static int aes_init_done = 0; | |
| 398 | ||
| 399 | static void aes_gen_tables( void ) | |
| 400 | { | |
| 401 | int i, x, y, z; | |
| 402 | int pow[256]; | |
| 403 | int log[256]; | |
| 404 | ||
| 405 | /* | |
| 406 | * compute pow and log tables over GF(2^8) | |
| 407 | */ | |
| 408 | for( i = 0, x = 1; i < 256; i++ ) | |
| 409 | { | |
| 410 | pow[i] = x; | |
| 411 | log[x] = i; | |
| 412 | x = ( x ^ XTIME( x ) ) & 0xFF; | |
| 413 | } | |
| 414 | ||
| 415 | /* | |
| 416 | * calculate the round constants | |
| 417 | */ | |
| 418 | for( i = 0, x = 1; i < 10; i++ ) | |
| 419 | { | |
| 420 | RCON[i] = (uint32_t) x; | |
| 421 | x = XTIME( x ) & 0xFF; | |
| 422 | } | |
| 423 | ||
| 424 | /* | |
| 425 | * generate the forward and reverse S-boxes | |
| 426 | */ | |
| 427 | FSb[0x00] = 0x63; | |
| 428 | RSb[0x63] = 0x00; | |
| 429 | ||
| 430 | for( i = 1; i < 256; i++ ) | |
| 431 | { | |
| 432 | x = pow[255 - log[i]]; | |
| 433 | ||
| 434 | y = x; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 435 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 436 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 437 | x ^= y; y = ( ( y << 1 ) | ( y >> 7 ) ) & 0xFF; | |
| 438 | x ^= y ^ 0x63; | |
| 439 | ||
| 440 | FSb[i] = (unsigned char) x; | |
| 441 | RSb[x] = (unsigned char) i; | |
| 442 | } | |
| 443 | ||
| 444 | /* | |
| 445 | * generate the forward and reverse tables | |
| 446 | */ | |
| 447 | for( i = 0; i < 256; i++ ) | |
| 448 | { | |
| 449 | x = FSb[i]; | |
| 450 | y = XTIME( x ) & 0xFF; | |
| 451 | z = ( y ^ x ) & 0xFF; | |
| 452 | ||
| 453 | FT0[i] = ( (uint32_t) y ) ^ | |
| 454 | ( (uint32_t) x << 8 ) ^ | |
| 455 | ( (uint32_t) x << 16 ) ^ | |
| 456 | ( (uint32_t) z << 24 ); | |
| 457 | ||
| 458 | #if !defined(MBEDTLS_AES_FEWER_TABLES) | |
| 459 | FT1[i] = ROTL8( FT0[i] ); | |
| 460 | FT2[i] = ROTL8( FT1[i] ); | |
| 461 | FT3[i] = ROTL8( FT2[i] ); | |
| 462 | #endif /* !MBEDTLS_AES_FEWER_TABLES */ | |
| 463 | ||
| 464 | x = RSb[i]; | |
| 465 | ||
| 466 | RT0[i] = ( (uint32_t) MUL( 0x0E, x ) ) ^ | |
| 467 | ( (uint32_t) MUL( 0x09, x ) << 8 ) ^ | |
| 468 | ( (uint32_t) MUL( 0x0D, x ) << 16 ) ^ | |
| 469 | ( (uint32_t) MUL( 0x0B, x ) << 24 ); | |
| 470 | ||
| 471 | #if !defined(MBEDTLS_AES_FEWER_TABLES) | |
| 472 | RT1[i] = ROTL8( RT0[i] ); | |
| 473 | RT2[i] = ROTL8( RT1[i] ); | |
| 474 | RT3[i] = ROTL8( RT2[i] ); | |
| 475 | #endif /* !MBEDTLS_AES_FEWER_TABLES */ | |
| 476 | } | |
| 477 | } | |
| 478 | ||
| 479 | #undef ROTL8 | |
| 480 | ||
| 481 | #endif /* MBEDTLS_AES_ROM_TABLES */ | |
| 482 | ||
| 483 | #if defined(MBEDTLS_AES_FEWER_TABLES) | |
| 484 | ||
| 485 | #define ROTL8(x) ( (uint32_t)( ( x ) << 8 ) + (uint32_t)( ( x ) >> 24 ) ) | |
| 486 | #define ROTL16(x) ( (uint32_t)( ( x ) << 16 ) + (uint32_t)( ( x ) >> 16 ) ) | |
| 487 | #define ROTL24(x) ( (uint32_t)( ( x ) << 24 ) + (uint32_t)( ( x ) >> 8 ) ) | |
| 488 | ||
| 489 | #define AES_RT0(idx) RT0[idx] | |
| 490 | #define AES_RT1(idx) ROTL8( RT0[idx] ) | |
| 491 | #define AES_RT2(idx) ROTL16( RT0[idx] ) | |
| 492 | #define AES_RT3(idx) ROTL24( RT0[idx] ) | |
| 493 | ||
| 494 | #define AES_FT0(idx) FT0[idx] | |
| 495 | #define AES_FT1(idx) ROTL8( FT0[idx] ) | |
| 496 | #define AES_FT2(idx) ROTL16( FT0[idx] ) | |
| 497 | #define AES_FT3(idx) ROTL24( FT0[idx] ) | |
| 498 | ||
| 499 | #else /* MBEDTLS_AES_FEWER_TABLES */ | |
| 500 | ||
| 501 | #define AES_RT0(idx) RT0[idx] | |
| 502 | #define AES_RT1(idx) RT1[idx] | |
| 503 | #define AES_RT2(idx) RT2[idx] | |
| 504 | #define AES_RT3(idx) RT3[idx] | |
| 505 | ||
| 506 | #define AES_FT0(idx) FT0[idx] | |
| 507 | #define AES_FT1(idx) FT1[idx] | |
| 508 | #define AES_FT2(idx) FT2[idx] | |
| 509 | #define AES_FT3(idx) FT3[idx] | |
| 510 | ||
| 511 | #endif /* MBEDTLS_AES_FEWER_TABLES */ | |
| 512 | ||
| 513 | void mbedtls_aes_init( mbedtls_aes_context *ctx ) | |
| 514 | { | |
| 515 | memset( ctx, 0, sizeof( mbedtls_aes_context ) ); | |
| 516 | } | |
| 517 | ||
| 518 | void mbedtls_aes_free( mbedtls_aes_context *ctx ) | |
| 519 | { | |
| 520 | if( ctx == NULL ) | |
| 521 | return; | |
| 522 | ||
| 523 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_aes_context ) ); | |
| 524 | } | |
| 525 | ||
| 526 | #if defined(MBEDTLS_CIPHER_MODE_XTS) | |
| 527 | void mbedtls_aes_xts_init( mbedtls_aes_xts_context *ctx ) | |
| 528 | { | |
| 529 | mbedtls_aes_init( &ctx->crypt ); | |
| 530 | mbedtls_aes_init( &ctx->tweak ); | |
| 531 | } | |
| 532 | ||
| 533 | void mbedtls_aes_xts_free( mbedtls_aes_xts_context *ctx ) | |
| 534 | { | |
| 535 | mbedtls_aes_free( &ctx->crypt ); | |
| 536 | mbedtls_aes_free( &ctx->tweak ); | |
| 537 | } | |
| 538 | #endif /* MBEDTLS_CIPHER_MODE_XTS */ | |
| 539 | ||
| 540 | /* | |
| 541 | * AES key schedule (encryption) | |
| 542 | */ | |
| 543 | #if !defined(MBEDTLS_AES_SETKEY_ENC_ALT) | |
| 544 | int mbedtls_aes_setkey_enc( mbedtls_aes_context *ctx, const unsigned char *key, | |
| 545 | unsigned int keybits ) | |
| 546 | { | |
| 547 | unsigned int i; | |
| 548 | uint32_t *RK; | |
| 549 | ||
| 550 | #if !defined(MBEDTLS_AES_ROM_TABLES) | |
| 551 | if( aes_init_done == 0 ) | |
| 552 | { | |
| 553 | aes_gen_tables(); | |
| 554 | aes_init_done = 1; | |
| 555 | ||
| 556 | } | |
| 557 | #endif | |
| 558 | ||
| 559 | switch( keybits ) | |
| 560 | { | |
| 561 | case 128: ctx->nr = 10; break; | |
| 562 | case 192: ctx->nr = 12; break; | |
| 563 | case 256: ctx->nr = 14; break; | |
| 564 | default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH ); | |
| 565 | } | |
| 566 | ||
| 567 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16) | |
| 568 | if( aes_padlock_ace == -1 ) | |
| 569 | aes_padlock_ace = mbedtls_padlock_has_support( MBEDTLS_PADLOCK_ACE ); | |
| 570 | ||
| 571 | if( aes_padlock_ace ) | |
| 572 | ctx->rk = RK = MBEDTLS_PADLOCK_ALIGN16( ctx->buf ); | |
| 573 | else | |
| 574 | #endif | |
| 575 | ctx->rk = RK = ctx->buf; | |
| 576 | ||
| 577 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) | |
| 578 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) ) | |
| 579 | return( mbedtls_aesni_setkey_enc( (unsigned char *) ctx->rk, key, keybits ) ); | |
| 580 | #endif | |
| 581 | ||
| 582 | for( i = 0; i < ( keybits >> 5 ); i++ ) | |
| 583 | { | |
| 584 | GET_UINT32_LE( RK[i], key, i << 2 ); | |
| 585 | } | |
| 586 | ||
| 587 | switch( ctx->nr ) | |
| 588 | { | |
| 589 | case 10: | |
| 590 | ||
| 591 | for( i = 0; i < 10; i++, RK += 4 ) | |
| 592 | { | |
| 593 | RK[4] = RK[0] ^ RCON[i] ^ | |
| 594 | ( (uint32_t) FSb[ ( RK[3] >> 8 ) & 0xFF ] ) ^ | |
| 595 | ( (uint32_t) FSb[ ( RK[3] >> 16 ) & 0xFF ] << 8 ) ^ | |
| 596 | ( (uint32_t) FSb[ ( RK[3] >> 24 ) & 0xFF ] << 16 ) ^ | |
| 597 | ( (uint32_t) FSb[ ( RK[3] ) & 0xFF ] << 24 ); | |
| 598 | ||
| 599 | RK[5] = RK[1] ^ RK[4]; | |
| 600 | RK[6] = RK[2] ^ RK[5]; | |
| 601 | RK[7] = RK[3] ^ RK[6]; | |
| 602 | } | |
| 603 | break; | |
| 604 | ||
| 605 | case 12: | |
| 606 | ||
| 607 | for( i = 0; i < 8; i++, RK += 6 ) | |
| 608 | { | |
| 609 | RK[6] = RK[0] ^ RCON[i] ^ | |
| 610 | ( (uint32_t) FSb[ ( RK[5] >> 8 ) & 0xFF ] ) ^ | |
| 611 | ( (uint32_t) FSb[ ( RK[5] >> 16 ) & 0xFF ] << 8 ) ^ | |
| 612 | ( (uint32_t) FSb[ ( RK[5] >> 24 ) & 0xFF ] << 16 ) ^ | |
| 613 | ( (uint32_t) FSb[ ( RK[5] ) & 0xFF ] << 24 ); | |
| 614 | ||
| 615 | RK[7] = RK[1] ^ RK[6]; | |
| 616 | RK[8] = RK[2] ^ RK[7]; | |
| 617 | RK[9] = RK[3] ^ RK[8]; | |
| 618 | RK[10] = RK[4] ^ RK[9]; | |
| 619 | RK[11] = RK[5] ^ RK[10]; | |
| 620 | } | |
| 621 | break; | |
| 622 | ||
| 623 | case 14: | |
| 624 | ||
| 625 | for( i = 0; i < 7; i++, RK += 8 ) | |
| 626 | { | |
| 627 | RK[8] = RK[0] ^ RCON[i] ^ | |
| 628 | ( (uint32_t) FSb[ ( RK[7] >> 8 ) & 0xFF ] ) ^ | |
| 629 | ( (uint32_t) FSb[ ( RK[7] >> 16 ) & 0xFF ] << 8 ) ^ | |
| 630 | ( (uint32_t) FSb[ ( RK[7] >> 24 ) & 0xFF ] << 16 ) ^ | |
| 631 | ( (uint32_t) FSb[ ( RK[7] ) & 0xFF ] << 24 ); | |
| 632 | ||
| 633 | RK[9] = RK[1] ^ RK[8]; | |
| 634 | RK[10] = RK[2] ^ RK[9]; | |
| 635 | RK[11] = RK[3] ^ RK[10]; | |
| 636 | ||
| 637 | RK[12] = RK[4] ^ | |
| 638 | ( (uint32_t) FSb[ ( RK[11] ) & 0xFF ] ) ^ | |
| 639 | ( (uint32_t) FSb[ ( RK[11] >> 8 ) & 0xFF ] << 8 ) ^ | |
| 640 | ( (uint32_t) FSb[ ( RK[11] >> 16 ) & 0xFF ] << 16 ) ^ | |
| 641 | ( (uint32_t) FSb[ ( RK[11] >> 24 ) & 0xFF ] << 24 ); | |
| 642 | ||
| 643 | RK[13] = RK[5] ^ RK[12]; | |
| 644 | RK[14] = RK[6] ^ RK[13]; | |
| 645 | RK[15] = RK[7] ^ RK[14]; | |
| 646 | } | |
| 647 | break; | |
| 648 | } | |
| 649 | ||
| 650 | return( 0 ); | |
| 651 | } | |
| 652 | #endif /* !MBEDTLS_AES_SETKEY_ENC_ALT */ | |
| 653 | ||
| 654 | /* | |
| 655 | * AES key schedule (decryption) | |
| 656 | */ | |
| 657 | #if !defined(MBEDTLS_AES_SETKEY_DEC_ALT) | |
| 658 | int mbedtls_aes_setkey_dec( mbedtls_aes_context *ctx, const unsigned char *key, | |
| 659 | unsigned int keybits ) | |
| 660 | { | |
| 661 | int i, j, ret; | |
| 662 | mbedtls_aes_context cty; | |
| 663 | uint32_t *RK; | |
| 664 | uint32_t *SK; | |
| 665 | ||
| 666 | mbedtls_aes_init( &cty ); | |
| 667 | ||
| 668 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16) | |
| 669 | if( aes_padlock_ace == -1 ) | |
| 670 | aes_padlock_ace = mbedtls_padlock_has_support( MBEDTLS_PADLOCK_ACE ); | |
| 671 | ||
| 672 | if( aes_padlock_ace ) | |
| 673 | ctx->rk = RK = MBEDTLS_PADLOCK_ALIGN16( ctx->buf ); | |
| 674 | else | |
| 675 | #endif | |
| 676 | ctx->rk = RK = ctx->buf; | |
| 677 | ||
| 678 | /* Also checks keybits */ | |
| 679 | if( ( ret = mbedtls_aes_setkey_enc( &cty, key, keybits ) ) != 0 ) | |
| 680 | goto exit; | |
| 681 | ||
| 682 | ctx->nr = cty.nr; | |
| 683 | ||
| 684 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) | |
| 685 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) ) | |
| 686 | { | |
| 687 | mbedtls_aesni_inverse_key( (unsigned char *) ctx->rk, | |
| 688 | (const unsigned char *) cty.rk, ctx->nr ); | |
| 689 | goto exit; | |
| 690 | } | |
| 691 | #endif | |
| 692 | ||
| 693 | SK = cty.rk + cty.nr * 4; | |
| 694 | ||
| 695 | *RK++ = *SK++; | |
| 696 | *RK++ = *SK++; | |
| 697 | *RK++ = *SK++; | |
| 698 | *RK++ = *SK++; | |
| 699 | ||
| 700 | for( i = ctx->nr - 1, SK -= 8; i > 0; i--, SK -= 8 ) | |
| 701 | { | |
| 702 | for( j = 0; j < 4; j++, SK++ ) | |
| 703 | { | |
| 704 | *RK++ = AES_RT0( FSb[ ( *SK ) & 0xFF ] ) ^ | |
| 705 | AES_RT1( FSb[ ( *SK >> 8 ) & 0xFF ] ) ^ | |
| 706 | AES_RT2( FSb[ ( *SK >> 16 ) & 0xFF ] ) ^ | |
| 707 | AES_RT3( FSb[ ( *SK >> 24 ) & 0xFF ] ); | |
| 708 | } | |
| 709 | } | |
| 710 | ||
| 711 | *RK++ = *SK++; | |
| 712 | *RK++ = *SK++; | |
| 713 | *RK++ = *SK++; | |
| 714 | *RK++ = *SK++; | |
| 715 | ||
| 716 | exit: | |
| 717 | mbedtls_aes_free( &cty ); | |
| 718 | ||
| 719 | return( ret ); | |
| 720 | } | |
| 721 | ||
| 722 | #if defined(MBEDTLS_CIPHER_MODE_XTS) | |
| 723 | static int mbedtls_aes_xts_decode_keys( const unsigned char *key, | |
| 724 | unsigned int keybits, | |
| 725 | const unsigned char **key1, | |
| 726 | unsigned int *key1bits, | |
| 727 | const unsigned char **key2, | |
| 728 | unsigned int *key2bits ) | |
| 729 | { | |
| 730 | const unsigned int half_keybits = keybits / 2; | |
| 731 | const unsigned int half_keybytes = half_keybits / 8; | |
| 732 | ||
| 733 | switch( keybits ) | |
| 734 | { | |
| 735 | case 256: break; | |
| 736 | case 512: break; | |
| 737 | default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH ); | |
| 738 | } | |
| 739 | ||
| 740 | *key1bits = half_keybits; | |
| 741 | *key2bits = half_keybits; | |
| 742 | *key1 = &key[0]; | |
| 743 | *key2 = &key[half_keybytes]; | |
| 744 | ||
| 745 | return 0; | |
| 746 | } | |
| 747 | ||
| 748 | int mbedtls_aes_xts_setkey_enc( mbedtls_aes_xts_context *ctx, | |
| 749 | const unsigned char *key, | |
| 750 | unsigned int keybits) | |
| 751 | { | |
| 752 | int ret; | |
| 753 | const unsigned char *key1, *key2; | |
| 754 | unsigned int key1bits, key2bits; | |
| 755 | ||
| 756 | ret = mbedtls_aes_xts_decode_keys( key, keybits, &key1, &key1bits, | |
| 757 | &key2, &key2bits ); | |
| 758 | if( ret != 0 ) | |
| 759 | return( ret ); | |
| 760 | ||
| 761 | /* Set the tweak key. Always set tweak key for the encryption mode. */ | |
| 762 | ret = mbedtls_aes_setkey_enc( &ctx->tweak, key2, key2bits ); | |
| 763 | if( ret != 0 ) | |
| 764 | return( ret ); | |
| 765 | ||
| 766 | /* Set crypt key for encryption. */ | |
| 767 | return mbedtls_aes_setkey_enc( &ctx->crypt, key1, key1bits ); | |
| 768 | } | |
| 769 | ||
| 770 | int mbedtls_aes_xts_setkey_dec( mbedtls_aes_xts_context *ctx, | |
| 771 | const unsigned char *key, | |
| 772 | unsigned int keybits) | |
| 773 | { | |
| 774 | int ret; | |
| 775 | const unsigned char *key1, *key2; | |
| 776 | unsigned int key1bits, key2bits; | |
| 777 | ||
| 778 | ret = mbedtls_aes_xts_decode_keys( key, keybits, &key1, &key1bits, | |
| 779 | &key2, &key2bits ); | |
| 780 | if( ret != 0 ) | |
| 781 | return( ret ); | |
| 782 | ||
| 783 | /* Set the tweak key. Always set tweak key for encryption. */ | |
| 784 | ret = mbedtls_aes_setkey_enc( &ctx->tweak, key2, key2bits ); | |
| 785 | if( ret != 0 ) | |
| 786 | return( ret ); | |
| 787 | ||
| 788 | /* Set crypt key for decryption. */ | |
| 789 | return mbedtls_aes_setkey_dec( &ctx->crypt, key1, key1bits ); | |
| 790 | } | |
| 791 | #endif /* MBEDTLS_CIPHER_MODE_XTS */ | |
| 792 | ||
| 793 | #endif /* !MBEDTLS_AES_SETKEY_DEC_ALT */ | |
| 794 | ||
| 795 | #define AES_FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \ | |
| 796 | { \ | |
| 797 | X0 = *RK++ ^ AES_FT0( ( Y0 ) & 0xFF ) ^ \ | |
| 798 | AES_FT1( ( Y1 >> 8 ) & 0xFF ) ^ \ | |
| 799 | AES_FT2( ( Y2 >> 16 ) & 0xFF ) ^ \ | |
| 800 | AES_FT3( ( Y3 >> 24 ) & 0xFF ); \ | |
| 801 | \ | |
| 802 | X1 = *RK++ ^ AES_FT0( ( Y1 ) & 0xFF ) ^ \ | |
| 803 | AES_FT1( ( Y2 >> 8 ) & 0xFF ) ^ \ | |
| 804 | AES_FT2( ( Y3 >> 16 ) & 0xFF ) ^ \ | |
| 805 | AES_FT3( ( Y0 >> 24 ) & 0xFF ); \ | |
| 806 | \ | |
| 807 | X2 = *RK++ ^ AES_FT0( ( Y2 ) & 0xFF ) ^ \ | |
| 808 | AES_FT1( ( Y3 >> 8 ) & 0xFF ) ^ \ | |
| 809 | AES_FT2( ( Y0 >> 16 ) & 0xFF ) ^ \ | |
| 810 | AES_FT3( ( Y1 >> 24 ) & 0xFF ); \ | |
| 811 | \ | |
| 812 | X3 = *RK++ ^ AES_FT0( ( Y3 ) & 0xFF ) ^ \ | |
| 813 | AES_FT1( ( Y0 >> 8 ) & 0xFF ) ^ \ | |
| 814 | AES_FT2( ( Y1 >> 16 ) & 0xFF ) ^ \ | |
| 815 | AES_FT3( ( Y2 >> 24 ) & 0xFF ); \ | |
| 816 | } | |
| 817 | ||
| 818 | #define AES_RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3) \ | |
| 819 | { \ | |
| 820 | X0 = *RK++ ^ AES_RT0( ( Y0 ) & 0xFF ) ^ \ | |
| 821 | AES_RT1( ( Y3 >> 8 ) & 0xFF ) ^ \ | |
| 822 | AES_RT2( ( Y2 >> 16 ) & 0xFF ) ^ \ | |
| 823 | AES_RT3( ( Y1 >> 24 ) & 0xFF ); \ | |
| 824 | \ | |
| 825 | X1 = *RK++ ^ AES_RT0( ( Y1 ) & 0xFF ) ^ \ | |
| 826 | AES_RT1( ( Y0 >> 8 ) & 0xFF ) ^ \ | |
| 827 | AES_RT2( ( Y3 >> 16 ) & 0xFF ) ^ \ | |
| 828 | AES_RT3( ( Y2 >> 24 ) & 0xFF ); \ | |
| 829 | \ | |
| 830 | X2 = *RK++ ^ AES_RT0( ( Y2 ) & 0xFF ) ^ \ | |
| 831 | AES_RT1( ( Y1 >> 8 ) & 0xFF ) ^ \ | |
| 832 | AES_RT2( ( Y0 >> 16 ) & 0xFF ) ^ \ | |
| 833 | AES_RT3( ( Y3 >> 24 ) & 0xFF ); \ | |
| 834 | \ | |
| 835 | X3 = *RK++ ^ AES_RT0( ( Y3 ) & 0xFF ) ^ \ | |
| 836 | AES_RT1( ( Y2 >> 8 ) & 0xFF ) ^ \ | |
| 837 | AES_RT2( ( Y1 >> 16 ) & 0xFF ) ^ \ | |
| 838 | AES_RT3( ( Y0 >> 24 ) & 0xFF ); \ | |
| 839 | } | |
| 840 | ||
| 841 | /* | |
| 842 | * AES-ECB block encryption | |
| 843 | */ | |
| 844 | #if !defined(MBEDTLS_AES_ENCRYPT_ALT) | |
| 845 | int mbedtls_internal_aes_encrypt( mbedtls_aes_context *ctx, | |
| 846 | const unsigned char input[16], | |
| 847 | unsigned char output[16] ) | |
| 848 | { | |
| 849 | int i; | |
| 850 | uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3; | |
| 851 | ||
| 852 | RK = ctx->rk; | |
| 853 | ||
| 854 | GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++; | |
| 855 | GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++; | |
| 856 | GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++; | |
| 857 | GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++; | |
| 858 | ||
| 859 | for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- ) | |
| 860 | { | |
| 861 | AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 862 | AES_FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 ); | |
| 863 | } | |
| 864 | ||
| 865 | AES_FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 866 | ||
| 867 | X0 = *RK++ ^ \ | |
| 868 | ( (uint32_t) FSb[ ( Y0 ) & 0xFF ] ) ^ | |
| 869 | ( (uint32_t) FSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 870 | ( (uint32_t) FSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 871 | ( (uint32_t) FSb[ ( Y3 >> 24 ) & 0xFF ] << 24 ); | |
| 872 | ||
| 873 | X1 = *RK++ ^ \ | |
| 874 | ( (uint32_t) FSb[ ( Y1 ) & 0xFF ] ) ^ | |
| 875 | ( (uint32_t) FSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 876 | ( (uint32_t) FSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 877 | ( (uint32_t) FSb[ ( Y0 >> 24 ) & 0xFF ] << 24 ); | |
| 878 | ||
| 879 | X2 = *RK++ ^ \ | |
| 880 | ( (uint32_t) FSb[ ( Y2 ) & 0xFF ] ) ^ | |
| 881 | ( (uint32_t) FSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 882 | ( (uint32_t) FSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 883 | ( (uint32_t) FSb[ ( Y1 >> 24 ) & 0xFF ] << 24 ); | |
| 884 | ||
| 885 | X3 = *RK++ ^ \ | |
| 886 | ( (uint32_t) FSb[ ( Y3 ) & 0xFF ] ) ^ | |
| 887 | ( (uint32_t) FSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 888 | ( (uint32_t) FSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 889 | ( (uint32_t) FSb[ ( Y2 >> 24 ) & 0xFF ] << 24 ); | |
| 890 | ||
| 891 | PUT_UINT32_LE( X0, output, 0 ); | |
| 892 | PUT_UINT32_LE( X1, output, 4 ); | |
| 893 | PUT_UINT32_LE( X2, output, 8 ); | |
| 894 | PUT_UINT32_LE( X3, output, 12 ); | |
| 895 | ||
| 896 | return( 0 ); | |
| 897 | } | |
| 898 | #endif /* !MBEDTLS_AES_ENCRYPT_ALT */ | |
| 899 | ||
| 900 | #if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
| 901 | void mbedtls_aes_encrypt( mbedtls_aes_context *ctx, | |
| 902 | const unsigned char input[16], | |
| 903 | unsigned char output[16] ) | |
| 904 | { | |
| 905 | mbedtls_internal_aes_encrypt( ctx, input, output ); | |
| 906 | } | |
| 907 | #endif /* !MBEDTLS_DEPRECATED_REMOVED */ | |
| 908 | ||
| 909 | /* | |
| 910 | * AES-ECB block decryption | |
| 911 | */ | |
| 912 | #if !defined(MBEDTLS_AES_DECRYPT_ALT) | |
| 913 | int mbedtls_internal_aes_decrypt( mbedtls_aes_context *ctx, | |
| 914 | const unsigned char input[16], | |
| 915 | unsigned char output[16] ) | |
| 916 | { | |
| 917 | int i; | |
| 918 | uint32_t *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3; | |
| 919 | ||
| 920 | RK = ctx->rk; | |
| 921 | ||
| 922 | GET_UINT32_LE( X0, input, 0 ); X0 ^= *RK++; | |
| 923 | GET_UINT32_LE( X1, input, 4 ); X1 ^= *RK++; | |
| 924 | GET_UINT32_LE( X2, input, 8 ); X2 ^= *RK++; | |
| 925 | GET_UINT32_LE( X3, input, 12 ); X3 ^= *RK++; | |
| 926 | ||
| 927 | for( i = ( ctx->nr >> 1 ) - 1; i > 0; i-- ) | |
| 928 | { | |
| 929 | AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 930 | AES_RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 ); | |
| 931 | } | |
| 932 | ||
| 933 | AES_RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 ); | |
| 934 | ||
| 935 | X0 = *RK++ ^ \ | |
| 936 | ( (uint32_t) RSb[ ( Y0 ) & 0xFF ] ) ^ | |
| 937 | ( (uint32_t) RSb[ ( Y3 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 938 | ( (uint32_t) RSb[ ( Y2 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 939 | ( (uint32_t) RSb[ ( Y1 >> 24 ) & 0xFF ] << 24 ); | |
| 940 | ||
| 941 | X1 = *RK++ ^ \ | |
| 942 | ( (uint32_t) RSb[ ( Y1 ) & 0xFF ] ) ^ | |
| 943 | ( (uint32_t) RSb[ ( Y0 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 944 | ( (uint32_t) RSb[ ( Y3 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 945 | ( (uint32_t) RSb[ ( Y2 >> 24 ) & 0xFF ] << 24 ); | |
| 946 | ||
| 947 | X2 = *RK++ ^ \ | |
| 948 | ( (uint32_t) RSb[ ( Y2 ) & 0xFF ] ) ^ | |
| 949 | ( (uint32_t) RSb[ ( Y1 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 950 | ( (uint32_t) RSb[ ( Y0 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 951 | ( (uint32_t) RSb[ ( Y3 >> 24 ) & 0xFF ] << 24 ); | |
| 952 | ||
| 953 | X3 = *RK++ ^ \ | |
| 954 | ( (uint32_t) RSb[ ( Y3 ) & 0xFF ] ) ^ | |
| 955 | ( (uint32_t) RSb[ ( Y2 >> 8 ) & 0xFF ] << 8 ) ^ | |
| 956 | ( (uint32_t) RSb[ ( Y1 >> 16 ) & 0xFF ] << 16 ) ^ | |
| 957 | ( (uint32_t) RSb[ ( Y0 >> 24 ) & 0xFF ] << 24 ); | |
| 958 | ||
| 959 | PUT_UINT32_LE( X0, output, 0 ); | |
| 960 | PUT_UINT32_LE( X1, output, 4 ); | |
| 961 | PUT_UINT32_LE( X2, output, 8 ); | |
| 962 | PUT_UINT32_LE( X3, output, 12 ); | |
| 963 | ||
| 964 | return( 0 ); | |
| 965 | } | |
| 966 | #endif /* !MBEDTLS_AES_DECRYPT_ALT */ | |
| 967 | ||
| 968 | #if !defined(MBEDTLS_DEPRECATED_REMOVED) | |
| 969 | void mbedtls_aes_decrypt( mbedtls_aes_context *ctx, | |
| 970 | const unsigned char input[16], | |
| 971 | unsigned char output[16] ) | |
| 972 | { | |
| 973 | mbedtls_internal_aes_decrypt( ctx, input, output ); | |
| 974 | } | |
| 975 | #endif /* !MBEDTLS_DEPRECATED_REMOVED */ | |
| 976 | ||
| 977 | /* | |
| 978 | * AES-ECB block encryption/decryption | |
| 979 | */ | |
| 980 | int mbedtls_aes_crypt_ecb( mbedtls_aes_context *ctx, | |
| 981 | int mode, | |
| 982 | const unsigned char input[16], | |
| 983 | unsigned char output[16] ) | |
| 984 | { | |
| 985 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) | |
| 986 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_AES ) ) | |
| 987 | return( mbedtls_aesni_crypt_ecb( ctx, mode, input, output ) ); | |
| 988 | #endif | |
| 989 | ||
| 990 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86) | |
| 991 | if( aes_padlock_ace ) | |
| 992 | { | |
| 993 | if( mbedtls_padlock_xcryptecb( ctx, mode, input, output ) == 0 ) | |
| 994 | return( 0 ); | |
| 995 | ||
| 996 | // If padlock data misaligned, we just fall back to | |
| 997 | // unaccelerated mode | |
| 998 | // | |
| 999 | } | |
| 1000 | #endif | |
| 1001 | ||
| 1002 | if( mode == MBEDTLS_AES_ENCRYPT ) | |
| 1003 | return( mbedtls_internal_aes_encrypt( ctx, input, output ) ); | |
| 1004 | else | |
| 1005 | return( mbedtls_internal_aes_decrypt( ctx, input, output ) ); | |
| 1006 | } | |
| 1007 | ||
| 1008 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
| 1009 | /* | |
| 1010 | * AES-CBC buffer encryption/decryption | |
| 1011 | */ | |
| 1012 | int mbedtls_aes_crypt_cbc( mbedtls_aes_context *ctx, | |
| 1013 | int mode, | |
| 1014 | size_t length, | |
| 1015 | unsigned char iv[16], | |
| 1016 | const unsigned char *input, | |
| 1017 | unsigned char *output ) | |
| 1018 | { | |
| 1019 | int i; | |
| 1020 | unsigned char temp[16]; | |
| 1021 | ||
| 1022 | if( length % 16 ) | |
| 1023 | return( MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH ); | |
| 1024 | ||
| 1025 | #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86) | |
| 1026 | if( aes_padlock_ace ) | |
| 1027 | { | |
| 1028 | if( mbedtls_padlock_xcryptcbc( ctx, mode, length, iv, input, output ) == 0 ) | |
| 1029 | return( 0 ); | |
| 1030 | ||
| 1031 | // If padlock data misaligned, we just fall back to | |
| 1032 | // unaccelerated mode | |
| 1033 | // | |
| 1034 | } | |
| 1035 | #endif | |
| 1036 | ||
| 1037 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1038 | { | |
| 1039 | while( length > 0 ) | |
| 1040 | { | |
| 1041 | memcpy( temp, input, 16 ); | |
| 1042 | mbedtls_aes_crypt_ecb( ctx, mode, input, output ); | |
| 1043 | ||
| 1044 | for( i = 0; i < 16; i++ ) | |
| 1045 | output[i] = (unsigned char)( output[i] ^ iv[i] ); | |
| 1046 | ||
| 1047 | memcpy( iv, temp, 16 ); | |
| 1048 | ||
| 1049 | input += 16; | |
| 1050 | output += 16; | |
| 1051 | length -= 16; | |
| 1052 | } | |
| 1053 | } | |
| 1054 | else | |
| 1055 | { | |
| 1056 | while( length > 0 ) | |
| 1057 | { | |
| 1058 | for( i = 0; i < 16; i++ ) | |
| 1059 | output[i] = (unsigned char)( input[i] ^ iv[i] ); | |
| 1060 | ||
| 1061 | mbedtls_aes_crypt_ecb( ctx, mode, output, output ); | |
| 1062 | memcpy( iv, output, 16 ); | |
| 1063 | ||
| 1064 | input += 16; | |
| 1065 | output += 16; | |
| 1066 | length -= 16; | |
| 1067 | } | |
| 1068 | } | |
| 1069 | ||
| 1070 | return( 0 ); | |
| 1071 | } | |
| 1072 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | |
| 1073 | ||
| 1074 | #if defined(MBEDTLS_CIPHER_MODE_XTS) | |
| 1075 | ||
| 1076 | /* Endianess with 64 bits values */ | |
| 1077 | #ifndef GET_UINT64_LE | |
| 1078 | #define GET_UINT64_LE(n,b,i) \ | |
| 1079 | { \ | |
| 1080 | (n) = ( (uint64_t) (b)[(i) + 7] << 56 ) \ | |
| 1081 | | ( (uint64_t) (b)[(i) + 6] << 48 ) \ | |
| 1082 | | ( (uint64_t) (b)[(i) + 5] << 40 ) \ | |
| 1083 | | ( (uint64_t) (b)[(i) + 4] << 32 ) \ | |
| 1084 | | ( (uint64_t) (b)[(i) + 3] << 24 ) \ | |
| 1085 | | ( (uint64_t) (b)[(i) + 2] << 16 ) \ | |
| 1086 | | ( (uint64_t) (b)[(i) + 1] << 8 ) \ | |
| 1087 | | ( (uint64_t) (b)[(i) ] ); \ | |
| 1088 | } | |
| 1089 | #endif | |
| 1090 | ||
| 1091 | #ifndef PUT_UINT64_LE | |
| 1092 | #define PUT_UINT64_LE(n,b,i) \ | |
| 1093 | { \ | |
| 1094 | (b)[(i) + 7] = (unsigned char) ( (n) >> 56 ); \ | |
| 1095 | (b)[(i) + 6] = (unsigned char) ( (n) >> 48 ); \ | |
| 1096 | (b)[(i) + 5] = (unsigned char) ( (n) >> 40 ); \ | |
| 1097 | (b)[(i) + 4] = (unsigned char) ( (n) >> 32 ); \ | |
| 1098 | (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \ | |
| 1099 | (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \ | |
| 1100 | (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \ | |
| 1101 | (b)[(i) ] = (unsigned char) ( (n) ); \ | |
| 1102 | } | |
| 1103 | #endif | |
| 1104 | ||
| 1105 | typedef unsigned char mbedtls_be128[16]; | |
| 1106 | ||
| 1107 | /* | |
| 1108 | * GF(2^128) multiplication function | |
| 1109 | * | |
| 1110 | * This function multiplies a field element by x in the polynomial field | |
| 1111 | * representation. It uses 64-bit word operations to gain speed but compensates | |
| 1112 | * for machine endianess and hence works correctly on both big and little | |
| 1113 | * endian machines. | |
| 1114 | */ | |
| 1115 | static void mbedtls_gf128mul_x_ble( unsigned char r[16], | |
| 1116 | const unsigned char x[16] ) | |
| 1117 | { | |
| 1118 | uint64_t a, b, ra, rb; | |
| 1119 | ||
| 1120 | GET_UINT64_LE( a, x, 0 ); | |
| 1121 | GET_UINT64_LE( b, x, 8 ); | |
| 1122 | ||
| 1123 | ra = ( a << 1 ) ^ 0x0087 >> ( 8 - ( ( b >> 63 ) << 3 ) ); | |
| 1124 | rb = ( a >> 63 ) | ( b << 1 ); | |
| 1125 | ||
| 1126 | PUT_UINT64_LE( ra, r, 0 ); | |
| 1127 | PUT_UINT64_LE( rb, r, 8 ); | |
| 1128 | } | |
| 1129 | ||
| 1130 | /* | |
| 1131 | * AES-XTS buffer encryption/decryption | |
| 1132 | */ | |
| 1133 | int mbedtls_aes_crypt_xts( mbedtls_aes_xts_context *ctx, | |
| 1134 | int mode, | |
| 1135 | size_t length, | |
| 1136 | const unsigned char data_unit[16], | |
| 1137 | const unsigned char *input, | |
| 1138 | unsigned char *output ) | |
| 1139 | { | |
| 1140 | int ret; | |
| 1141 | size_t blocks = length / 16; | |
| 1142 | size_t leftover = length % 16; | |
| 1143 | unsigned char tweak[16]; | |
| 1144 | unsigned char prev_tweak[16]; | |
| 1145 | unsigned char tmp[16]; | |
| 1146 | ||
| 1147 | /* Sectors must be at least 16 bytes. */ | |
| 1148 | if( length < 16 ) | |
| 1149 | return MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH; | |
| 1150 | ||
| 1151 | /* NIST SP 80-38E disallows data units larger than 2**20 blocks. */ | |
| 1152 | if( length > ( 1 << 20 ) * 16 ) | |
| 1153 | return MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH; | |
| 1154 | ||
| 1155 | /* Compute the tweak. */ | |
| 1156 | ret = mbedtls_aes_crypt_ecb( &ctx->tweak, MBEDTLS_AES_ENCRYPT, | |
| 1157 | data_unit, tweak ); | |
| 1158 | if( ret != 0 ) | |
| 1159 | return( ret ); | |
| 1160 | ||
| 1161 | while( blocks-- ) | |
| 1162 | { | |
| 1163 | size_t i; | |
| 1164 | ||
| 1165 | if( leftover && ( mode == MBEDTLS_AES_DECRYPT ) && blocks == 0 ) | |
| 1166 | { | |
| 1167 | /* We are on the last block in a decrypt operation that has | |
| 1168 | * leftover bytes, so we need to use the next tweak for this block, | |
| 1169 | * and this tweak for the lefover bytes. Save the current tweak for | |
| 1170 | * the leftovers and then update the current tweak for use on this, | |
| 1171 | * the last full block. */ | |
| 1172 | memcpy( prev_tweak, tweak, sizeof( tweak ) ); | |
| 1173 | mbedtls_gf128mul_x_ble( tweak, tweak ); | |
| 1174 | } | |
| 1175 | ||
| 1176 | for( i = 0; i < 16; i++ ) | |
| 1177 | tmp[i] = input[i] ^ tweak[i]; | |
| 1178 | ||
| 1179 | ret = mbedtls_aes_crypt_ecb( &ctx->crypt, mode, tmp, tmp ); | |
| 1180 | if( ret != 0 ) | |
| 1181 | return( ret ); | |
| 1182 | ||
| 1183 | for( i = 0; i < 16; i++ ) | |
| 1184 | output[i] = tmp[i] ^ tweak[i]; | |
| 1185 | ||
| 1186 | /* Update the tweak for the next block. */ | |
| 1187 | mbedtls_gf128mul_x_ble( tweak, tweak ); | |
| 1188 | ||
| 1189 | output += 16; | |
| 1190 | input += 16; | |
| 1191 | } | |
| 1192 | ||
| 1193 | if( leftover ) | |
| 1194 | { | |
| 1195 | /* If we are on the leftover bytes in a decrypt operation, we need to | |
| 1196 | * use the previous tweak for these bytes (as saved in prev_tweak). */ | |
| 1197 | unsigned char *t = mode == MBEDTLS_AES_DECRYPT ? prev_tweak : tweak; | |
| 1198 | ||
| 1199 | /* We are now on the final part of the data unit, which doesn't divide | |
| 1200 | * evenly by 16. It's time for ciphertext stealing. */ | |
| 1201 | size_t i; | |
| 1202 | unsigned char *prev_output = output - 16; | |
| 1203 | ||
| 1204 | /* Copy ciphertext bytes from the previous block to our output for each | |
| 1205 | * byte of cyphertext we won't steal. At the same time, copy the | |
| 1206 | * remainder of the input for this final round (since the loop bounds | |
| 1207 | * are the same). */ | |
| 1208 | for( i = 0; i < leftover; i++ ) | |
| 1209 | { | |
| 1210 | output[i] = prev_output[i]; | |
| 1211 | tmp[i] = input[i] ^ t[i]; | |
| 1212 | } | |
| 1213 | ||
| 1214 | /* Copy ciphertext bytes from the previous block for input in this | |
| 1215 | * round. */ | |
| 1216 | for( ; i < 16; i++ ) | |
| 1217 | tmp[i] = prev_output[i] ^ t[i]; | |
| 1218 | ||
| 1219 | ret = mbedtls_aes_crypt_ecb( &ctx->crypt, mode, tmp, tmp ); | |
| 1220 | if( ret != 0 ) | |
| 1221 | return ret; | |
| 1222 | ||
| 1223 | /* Write the result back to the previous block, overriding the previous | |
| 1224 | * output we copied. */ | |
| 1225 | for( i = 0; i < 16; i++ ) | |
| 1226 | prev_output[i] = tmp[i] ^ t[i]; | |
| 1227 | } | |
| 1228 | ||
| 1229 | return( 0 ); | |
| 1230 | } | |
| 1231 | #endif /* MBEDTLS_CIPHER_MODE_XTS */ | |
| 1232 | ||
| 1233 | #if defined(MBEDTLS_CIPHER_MODE_CFB) | |
| 1234 | /* | |
| 1235 | * AES-CFB128 buffer encryption/decryption | |
| 1236 | */ | |
| 1237 | int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx, | |
| 1238 | int mode, | |
| 1239 | size_t length, | |
| 1240 | size_t *iv_off, | |
| 1241 | unsigned char iv[16], | |
| 1242 | const unsigned char *input, | |
| 1243 | unsigned char *output ) | |
| 1244 | { | |
| 1245 | int c; | |
| 1246 | size_t n = *iv_off; | |
| 1247 | ||
| 1248 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1249 | { | |
| 1250 | while( length-- ) | |
| 1251 | { | |
| 1252 | if( n == 0 ) | |
| 1253 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); | |
| 1254 | ||
| 1255 | c = *input++; | |
| 1256 | *output++ = (unsigned char)( c ^ iv[n] ); | |
| 1257 | iv[n] = (unsigned char) c; | |
| 1258 | ||
| 1259 | n = ( n + 1 ) & 0x0F; | |
| 1260 | } | |
| 1261 | } | |
| 1262 | else | |
| 1263 | { | |
| 1264 | while( length-- ) | |
| 1265 | { | |
| 1266 | if( n == 0 ) | |
| 1267 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); | |
| 1268 | ||
| 1269 | iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ ); | |
| 1270 | ||
| 1271 | n = ( n + 1 ) & 0x0F; | |
| 1272 | } | |
| 1273 | } | |
| 1274 | ||
| 1275 | *iv_off = n; | |
| 1276 | ||
| 1277 | return( 0 ); | |
| 1278 | } | |
| 1279 | ||
| 1280 | /* | |
| 1281 | * AES-CFB8 buffer encryption/decryption | |
| 1282 | */ | |
| 1283 | int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx, | |
| 1284 | int mode, | |
| 1285 | size_t length, | |
| 1286 | unsigned char iv[16], | |
| 1287 | const unsigned char *input, | |
| 1288 | unsigned char *output ) | |
| 1289 | { | |
| 1290 | unsigned char c; | |
| 1291 | unsigned char ov[17]; | |
| 1292 | ||
| 1293 | while( length-- ) | |
| 1294 | { | |
| 1295 | memcpy( ov, iv, 16 ); | |
| 1296 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); | |
| 1297 | ||
| 1298 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1299 | ov[16] = *input; | |
| 1300 | ||
| 1301 | c = *output++ = (unsigned char)( iv[0] ^ *input++ ); | |
| 1302 | ||
| 1303 | if( mode == MBEDTLS_AES_ENCRYPT ) | |
| 1304 | ov[16] = c; | |
| 1305 | ||
| 1306 | memcpy( iv, ov + 1, 16 ); | |
| 1307 | } | |
| 1308 | ||
| 1309 | return( 0 ); | |
| 1310 | } | |
| 1311 | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | |
| 1312 | ||
| 1313 | #if defined(MBEDTLS_CIPHER_MODE_OFB) | |
| 1314 | /* | |
| 1315 | * AES-OFB (Output Feedback Mode) buffer encryption/decryption | |
| 1316 | */ | |
| 1317 | int mbedtls_aes_crypt_ofb( mbedtls_aes_context *ctx, | |
| 1318 | size_t length, | |
| 1319 | size_t *iv_off, | |
| 1320 | unsigned char iv[16], | |
| 1321 | const unsigned char *input, | |
| 1322 | unsigned char *output ) | |
| 1323 | { | |
| 1324 | int ret = 0; | |
| 1325 | size_t n = *iv_off; | |
| 1326 | ||
| 1327 | while( length-- ) | |
| 1328 | { | |
| 1329 | if( n == 0 ) | |
| 1330 | { | |
| 1331 | ret = mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv ); | |
| 1332 | if( ret != 0 ) | |
| 1333 | goto exit; | |
| 1334 | } | |
| 1335 | *output++ = *input++ ^ iv[n]; | |
| 1336 | ||
| 1337 | n = ( n + 1 ) & 0x0F; | |
| 1338 | } | |
| 1339 | ||
| 1340 | *iv_off = n; | |
| 1341 | ||
| 1342 | exit: | |
| 1343 | return( ret ); | |
| 1344 | } | |
| 1345 | #endif /* MBEDTLS_CIPHER_MODE_OFB */ | |
| 1346 | ||
| 1347 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
| 1348 | /* | |
| 1349 | * AES-CTR buffer encryption/decryption | |
| 1350 | */ | |
| 1351 | int mbedtls_aes_crypt_ctr( mbedtls_aes_context *ctx, | |
| 1352 | size_t length, | |
| 1353 | size_t *nc_off, | |
| 1354 | unsigned char nonce_counter[16], | |
| 1355 | unsigned char stream_block[16], | |
| 1356 | const unsigned char *input, | |
| 1357 | unsigned char *output ) | |
| 1358 | { | |
| 1359 | int c, i; | |
| 1360 | size_t n = *nc_off; | |
| 1361 | ||
| 1362 | if ( n > 0x0F ) | |
| 1363 | return( MBEDTLS_ERR_AES_BAD_INPUT_DATA ); | |
| 1364 | ||
| 1365 | while( length-- ) | |
| 1366 | { | |
| 1367 | if( n == 0 ) { | |
| 1368 | mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, nonce_counter, stream_block ); | |
| 1369 | ||
| 1370 | for( i = 16; i > 0; i-- ) | |
| 1371 | if( ++nonce_counter[i - 1] != 0 ) | |
| 1372 | break; | |
| 1373 | } | |
| 1374 | c = *input++; | |
| 1375 | *output++ = (unsigned char)( c ^ stream_block[n] ); | |
| 1376 | ||
| 1377 | n = ( n + 1 ) & 0x0F; | |
| 1378 | } | |
| 1379 | ||
| 1380 | *nc_off = n; | |
| 1381 | ||
| 1382 | return( 0 ); | |
| 1383 | } | |
| 1384 | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | |
| 1385 | ||
| 1386 | #endif /* !MBEDTLS_AES_ALT */ | |
| 1387 | ||
| 1388 | #if defined(MBEDTLS_SELF_TEST) | |
| 1389 | /* | |
| 1390 | * AES test vectors from: | |
| 1391 | * | |
| 1392 | * http://csrc.nist.gov/archive/aes/rijndael/rijndael-vals.zip | |
| 1393 | */ | |
| 1394 | static const unsigned char aes_test_ecb_dec[3][16] = | |
| 1395 | { | |
| 1396 | { 0x44, 0x41, 0x6A, 0xC2, 0xD1, 0xF5, 0x3C, 0x58, | |
| 1397 | 0x33, 0x03, 0x91, 0x7E, 0x6B, 0xE9, 0xEB, 0xE0 }, | |
| 1398 | { 0x48, 0xE3, 0x1E, 0x9E, 0x25, 0x67, 0x18, 0xF2, | |
| 1399 | 0x92, 0x29, 0x31, 0x9C, 0x19, 0xF1, 0x5B, 0xA4 }, | |
| 1400 | { 0x05, 0x8C, 0xCF, 0xFD, 0xBB, 0xCB, 0x38, 0x2D, | |
| 1401 | 0x1F, 0x6F, 0x56, 0x58, 0x5D, 0x8A, 0x4A, 0xDE } | |
| 1402 | }; | |
| 1403 | ||
| 1404 | static const unsigned char aes_test_ecb_enc[3][16] = | |
| 1405 | { | |
| 1406 | { 0xC3, 0x4C, 0x05, 0x2C, 0xC0, 0xDA, 0x8D, 0x73, | |
| 1407 | 0x45, 0x1A, 0xFE, 0x5F, 0x03, 0xBE, 0x29, 0x7F }, | |
| 1408 | { 0xF3, 0xF6, 0x75, 0x2A, 0xE8, 0xD7, 0x83, 0x11, | |
| 1409 | 0x38, 0xF0, 0x41, 0x56, 0x06, 0x31, 0xB1, 0x14 }, | |
| 1410 | { 0x8B, 0x79, 0xEE, 0xCC, 0x93, 0xA0, 0xEE, 0x5D, | |
| 1411 | 0xFF, 0x30, 0xB4, 0xEA, 0x21, 0x63, 0x6D, 0xA4 } | |
| 1412 | }; | |
| 1413 | ||
| 1414 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
| 1415 | static const unsigned char aes_test_cbc_dec[3][16] = | |
| 1416 | { | |
| 1417 | { 0xFA, 0xCA, 0x37, 0xE0, 0xB0, 0xC8, 0x53, 0x73, | |
| 1418 | 0xDF, 0x70, 0x6E, 0x73, 0xF7, 0xC9, 0xAF, 0x86 }, | |
| 1419 | { 0x5D, 0xF6, 0x78, 0xDD, 0x17, 0xBA, 0x4E, 0x75, | |
| 1420 | 0xB6, 0x17, 0x68, 0xC6, 0xAD, 0xEF, 0x7C, 0x7B }, | |
| 1421 | { 0x48, 0x04, 0xE1, 0x81, 0x8F, 0xE6, 0x29, 0x75, | |
| 1422 | 0x19, 0xA3, 0xE8, 0x8C, 0x57, 0x31, 0x04, 0x13 } | |
| 1423 | }; | |
| 1424 | ||
| 1425 | static const unsigned char aes_test_cbc_enc[3][16] = | |
| 1426 | { | |
| 1427 | { 0x8A, 0x05, 0xFC, 0x5E, 0x09, 0x5A, 0xF4, 0x84, | |
| 1428 | 0x8A, 0x08, 0xD3, 0x28, 0xD3, 0x68, 0x8E, 0x3D }, | |
| 1429 | { 0x7B, 0xD9, 0x66, 0xD5, 0x3A, 0xD8, 0xC1, 0xBB, | |
| 1430 | 0x85, 0xD2, 0xAD, 0xFA, 0xE8, 0x7B, 0xB1, 0x04 }, | |
| 1431 | { 0xFE, 0x3C, 0x53, 0x65, 0x3E, 0x2F, 0x45, 0xB5, | |
| 1432 | 0x6F, 0xCD, 0x88, 0xB2, 0xCC, 0x89, 0x8F, 0xF0 } | |
| 1433 | }; | |
| 1434 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | |
| 1435 | ||
| 1436 | #if defined(MBEDTLS_CIPHER_MODE_CFB) | |
| 1437 | /* | |
| 1438 | * AES-CFB128 test vectors from: | |
| 1439 | * | |
| 1440 | * http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf | |
| 1441 | */ | |
| 1442 | static const unsigned char aes_test_cfb128_key[3][32] = | |
| 1443 | { | |
| 1444 | { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, | |
| 1445 | 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }, | |
| 1446 | { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52, | |
| 1447 | 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5, | |
| 1448 | 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B }, | |
| 1449 | { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE, | |
| 1450 | 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81, | |
| 1451 | 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7, | |
| 1452 | 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 } | |
| 1453 | }; | |
| 1454 | ||
| 1455 | static const unsigned char aes_test_cfb128_iv[16] = | |
| 1456 | { | |
| 1457 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1458 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F | |
| 1459 | }; | |
| 1460 | ||
| 1461 | static const unsigned char aes_test_cfb128_pt[64] = | |
| 1462 | { | |
| 1463 | 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96, | |
| 1464 | 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A, | |
| 1465 | 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C, | |
| 1466 | 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51, | |
| 1467 | 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11, | |
| 1468 | 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF, | |
| 1469 | 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17, | |
| 1470 | 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10 | |
| 1471 | }; | |
| 1472 | ||
| 1473 | static const unsigned char aes_test_cfb128_ct[3][64] = | |
| 1474 | { | |
| 1475 | { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20, | |
| 1476 | 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A, | |
| 1477 | 0xC8, 0xA6, 0x45, 0x37, 0xA0, 0xB3, 0xA9, 0x3F, | |
| 1478 | 0xCD, 0xE3, 0xCD, 0xAD, 0x9F, 0x1C, 0xE5, 0x8B, | |
| 1479 | 0x26, 0x75, 0x1F, 0x67, 0xA3, 0xCB, 0xB1, 0x40, | |
| 1480 | 0xB1, 0x80, 0x8C, 0xF1, 0x87, 0xA4, 0xF4, 0xDF, | |
| 1481 | 0xC0, 0x4B, 0x05, 0x35, 0x7C, 0x5D, 0x1C, 0x0E, | |
| 1482 | 0xEA, 0xC4, 0xC6, 0x6F, 0x9F, 0xF7, 0xF2, 0xE6 }, | |
| 1483 | { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB, | |
| 1484 | 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74, | |
| 1485 | 0x67, 0xCE, 0x7F, 0x7F, 0x81, 0x17, 0x36, 0x21, | |
| 1486 | 0x96, 0x1A, 0x2B, 0x70, 0x17, 0x1D, 0x3D, 0x7A, | |
| 1487 | 0x2E, 0x1E, 0x8A, 0x1D, 0xD5, 0x9B, 0x88, 0xB1, | |
| 1488 | 0xC8, 0xE6, 0x0F, 0xED, 0x1E, 0xFA, 0xC4, 0xC9, | |
| 1489 | 0xC0, 0x5F, 0x9F, 0x9C, 0xA9, 0x83, 0x4F, 0xA0, | |
| 1490 | 0x42, 0xAE, 0x8F, 0xBA, 0x58, 0x4B, 0x09, 0xFF }, | |
| 1491 | { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B, | |
| 1492 | 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60, | |
| 1493 | 0x39, 0xFF, 0xED, 0x14, 0x3B, 0x28, 0xB1, 0xC8, | |
| 1494 | 0x32, 0x11, 0x3C, 0x63, 0x31, 0xE5, 0x40, 0x7B, | |
| 1495 | 0xDF, 0x10, 0x13, 0x24, 0x15, 0xE5, 0x4B, 0x92, | |
| 1496 | 0xA1, 0x3E, 0xD0, 0xA8, 0x26, 0x7A, 0xE2, 0xF9, | |
| 1497 | 0x75, 0xA3, 0x85, 0x74, 0x1A, 0xB9, 0xCE, 0xF8, | |
| 1498 | 0x20, 0x31, 0x62, 0x3D, 0x55, 0xB1, 0xE4, 0x71 } | |
| 1499 | }; | |
| 1500 | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | |
| 1501 | ||
| 1502 | #if defined(MBEDTLS_CIPHER_MODE_OFB) | |
| 1503 | /* | |
| 1504 | * AES-OFB test vectors from: | |
| 1505 | * | |
| 1506 | * https://csrc.nist.gov/publications/detail/sp/800-38a/final | |
| 1507 | */ | |
| 1508 | static const unsigned char aes_test_ofb_key[3][32] = | |
| 1509 | { | |
| 1510 | { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, | |
| 1511 | 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }, | |
| 1512 | { 0x8E, 0x73, 0xB0, 0xF7, 0xDA, 0x0E, 0x64, 0x52, | |
| 1513 | 0xC8, 0x10, 0xF3, 0x2B, 0x80, 0x90, 0x79, 0xE5, | |
| 1514 | 0x62, 0xF8, 0xEA, 0xD2, 0x52, 0x2C, 0x6B, 0x7B }, | |
| 1515 | { 0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE, | |
| 1516 | 0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81, | |
| 1517 | 0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7, | |
| 1518 | 0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4 } | |
| 1519 | }; | |
| 1520 | ||
| 1521 | static const unsigned char aes_test_ofb_iv[16] = | |
| 1522 | { | |
| 1523 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1524 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F | |
| 1525 | }; | |
| 1526 | ||
| 1527 | static const unsigned char aes_test_ofb_pt[64] = | |
| 1528 | { | |
| 1529 | 0x6B, 0xC1, 0xBE, 0xE2, 0x2E, 0x40, 0x9F, 0x96, | |
| 1530 | 0xE9, 0x3D, 0x7E, 0x11, 0x73, 0x93, 0x17, 0x2A, | |
| 1531 | 0xAE, 0x2D, 0x8A, 0x57, 0x1E, 0x03, 0xAC, 0x9C, | |
| 1532 | 0x9E, 0xB7, 0x6F, 0xAC, 0x45, 0xAF, 0x8E, 0x51, | |
| 1533 | 0x30, 0xC8, 0x1C, 0x46, 0xA3, 0x5C, 0xE4, 0x11, | |
| 1534 | 0xE5, 0xFB, 0xC1, 0x19, 0x1A, 0x0A, 0x52, 0xEF, | |
| 1535 | 0xF6, 0x9F, 0x24, 0x45, 0xDF, 0x4F, 0x9B, 0x17, | |
| 1536 | 0xAD, 0x2B, 0x41, 0x7B, 0xE6, 0x6C, 0x37, 0x10 | |
| 1537 | }; | |
| 1538 | ||
| 1539 | static const unsigned char aes_test_ofb_ct[3][64] = | |
| 1540 | { | |
| 1541 | { 0x3B, 0x3F, 0xD9, 0x2E, 0xB7, 0x2D, 0xAD, 0x20, | |
| 1542 | 0x33, 0x34, 0x49, 0xF8, 0xE8, 0x3C, 0xFB, 0x4A, | |
| 1543 | 0x77, 0x89, 0x50, 0x8d, 0x16, 0x91, 0x8f, 0x03, | |
| 1544 | 0xf5, 0x3c, 0x52, 0xda, 0xc5, 0x4e, 0xd8, 0x25, | |
| 1545 | 0x97, 0x40, 0x05, 0x1e, 0x9c, 0x5f, 0xec, 0xf6, | |
| 1546 | 0x43, 0x44, 0xf7, 0xa8, 0x22, 0x60, 0xed, 0xcc, | |
| 1547 | 0x30, 0x4c, 0x65, 0x28, 0xf6, 0x59, 0xc7, 0x78, | |
| 1548 | 0x66, 0xa5, 0x10, 0xd9, 0xc1, 0xd6, 0xae, 0x5e }, | |
| 1549 | { 0xCD, 0xC8, 0x0D, 0x6F, 0xDD, 0xF1, 0x8C, 0xAB, | |
| 1550 | 0x34, 0xC2, 0x59, 0x09, 0xC9, 0x9A, 0x41, 0x74, | |
| 1551 | 0xfc, 0xc2, 0x8b, 0x8d, 0x4c, 0x63, 0x83, 0x7c, | |
| 1552 | 0x09, 0xe8, 0x17, 0x00, 0xc1, 0x10, 0x04, 0x01, | |
| 1553 | 0x8d, 0x9a, 0x9a, 0xea, 0xc0, 0xf6, 0x59, 0x6f, | |
| 1554 | 0x55, 0x9c, 0x6d, 0x4d, 0xaf, 0x59, 0xa5, 0xf2, | |
| 1555 | 0x6d, 0x9f, 0x20, 0x08, 0x57, 0xca, 0x6c, 0x3e, | |
| 1556 | 0x9c, 0xac, 0x52, 0x4b, 0xd9, 0xac, 0xc9, 0x2a }, | |
| 1557 | { 0xDC, 0x7E, 0x84, 0xBF, 0xDA, 0x79, 0x16, 0x4B, | |
| 1558 | 0x7E, 0xCD, 0x84, 0x86, 0x98, 0x5D, 0x38, 0x60, | |
| 1559 | 0x4f, 0xeb, 0xdc, 0x67, 0x40, 0xd2, 0x0b, 0x3a, | |
| 1560 | 0xc8, 0x8f, 0x6a, 0xd8, 0x2a, 0x4f, 0xb0, 0x8d, | |
| 1561 | 0x71, 0xab, 0x47, 0xa0, 0x86, 0xe8, 0x6e, 0xed, | |
| 1562 | 0xf3, 0x9d, 0x1c, 0x5b, 0xba, 0x97, 0xc4, 0x08, | |
| 1563 | 0x01, 0x26, 0x14, 0x1d, 0x67, 0xf3, 0x7b, 0xe8, | |
| 1564 | 0x53, 0x8f, 0x5a, 0x8b, 0xe7, 0x40, 0xe4, 0x84 } | |
| 1565 | }; | |
| 1566 | #endif /* MBEDTLS_CIPHER_MODE_OFB */ | |
| 1567 | ||
| 1568 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
| 1569 | /* | |
| 1570 | * AES-CTR test vectors from: | |
| 1571 | * | |
| 1572 | * http://www.faqs.org/rfcs/rfc3686.html | |
| 1573 | */ | |
| 1574 | ||
| 1575 | static const unsigned char aes_test_ctr_key[3][16] = | |
| 1576 | { | |
| 1577 | { 0xAE, 0x68, 0x52, 0xF8, 0x12, 0x10, 0x67, 0xCC, | |
| 1578 | 0x4B, 0xF7, 0xA5, 0x76, 0x55, 0x77, 0xF3, 0x9E }, | |
| 1579 | { 0x7E, 0x24, 0x06, 0x78, 0x17, 0xFA, 0xE0, 0xD7, | |
| 1580 | 0x43, 0xD6, 0xCE, 0x1F, 0x32, 0x53, 0x91, 0x63 }, | |
| 1581 | { 0x76, 0x91, 0xBE, 0x03, 0x5E, 0x50, 0x20, 0xA8, | |
| 1582 | 0xAC, 0x6E, 0x61, 0x85, 0x29, 0xF9, 0xA0, 0xDC } | |
| 1583 | }; | |
| 1584 | ||
| 1585 | static const unsigned char aes_test_ctr_nonce_counter[3][16] = | |
| 1586 | { | |
| 1587 | { 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, | |
| 1588 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, | |
| 1589 | { 0x00, 0x6C, 0xB6, 0xDB, 0xC0, 0x54, 0x3B, 0x59, | |
| 1590 | 0xDA, 0x48, 0xD9, 0x0B, 0x00, 0x00, 0x00, 0x01 }, | |
| 1591 | { 0x00, 0xE0, 0x01, 0x7B, 0x27, 0x77, 0x7F, 0x3F, | |
| 1592 | 0x4A, 0x17, 0x86, 0xF0, 0x00, 0x00, 0x00, 0x01 } | |
| 1593 | }; | |
| 1594 | ||
| 1595 | static const unsigned char aes_test_ctr_pt[3][48] = | |
| 1596 | { | |
| 1597 | { 0x53, 0x69, 0x6E, 0x67, 0x6C, 0x65, 0x20, 0x62, | |
| 1598 | 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x6D, 0x73, 0x67 }, | |
| 1599 | ||
| 1600 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1601 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | |
| 1602 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
| 1603 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F }, | |
| 1604 | ||
| 1605 | { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, | |
| 1606 | 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, | |
| 1607 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, | |
| 1608 | 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, | |
| 1609 | 0x20, 0x21, 0x22, 0x23 } | |
| 1610 | }; | |
| 1611 | ||
| 1612 | static const unsigned char aes_test_ctr_ct[3][48] = | |
| 1613 | { | |
| 1614 | { 0xE4, 0x09, 0x5D, 0x4F, 0xB7, 0xA7, 0xB3, 0x79, | |
| 1615 | 0x2D, 0x61, 0x75, 0xA3, 0x26, 0x13, 0x11, 0xB8 }, | |
| 1616 | { 0x51, 0x04, 0xA1, 0x06, 0x16, 0x8A, 0x72, 0xD9, | |
| 1617 | 0x79, 0x0D, 0x41, 0xEE, 0x8E, 0xDA, 0xD3, 0x88, | |
| 1618 | 0xEB, 0x2E, 0x1E, 0xFC, 0x46, 0xDA, 0x57, 0xC8, | |
| 1619 | 0xFC, 0xE6, 0x30, 0xDF, 0x91, 0x41, 0xBE, 0x28 }, | |
| 1620 | { 0xC1, 0xCF, 0x48, 0xA8, 0x9F, 0x2F, 0xFD, 0xD9, | |
| 1621 | 0xCF, 0x46, 0x52, 0xE9, 0xEF, 0xDB, 0x72, 0xD7, | |
| 1622 | 0x45, 0x40, 0xA4, 0x2B, 0xDE, 0x6D, 0x78, 0x36, | |
| 1623 | 0xD5, 0x9A, 0x5C, 0xEA, 0xAE, 0xF3, 0x10, 0x53, | |
| 1624 | 0x25, 0xB2, 0x07, 0x2F } | |
| 1625 | }; | |
| 1626 | ||
| 1627 | static const int aes_test_ctr_len[3] = | |
| 1628 | { 16, 32, 36 }; | |
| 1629 | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | |
| 1630 | ||
| 1631 | #if defined(MBEDTLS_CIPHER_MODE_XTS) | |
| 1632 | /* | |
| 1633 | * AES-XTS test vectors from: | |
| 1634 | * | |
| 1635 | * IEEE P1619/D16 Annex B | |
| 1636 | * https://web.archive.org/web/20150629024421/http://grouper.ieee.org/groups/1619/email/pdf00086.pdf | |
| 1637 | * (Archived from original at http://grouper.ieee.org/groups/1619/email/pdf00086.pdf) | |
| 1638 | */ | |
| 1639 | static const unsigned char aes_test_xts_key[][32] = | |
| 1640 | { | |
| 1641 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1642 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1643 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1644 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
| 1645 | { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, | |
| 1646 | 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, | |
| 1647 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, | |
| 1648 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22 }, | |
| 1649 | { 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, | |
| 1650 | 0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0, | |
| 1651 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, | |
| 1652 | 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22 }, | |
| 1653 | }; | |
| 1654 | ||
| 1655 | static const unsigned char aes_test_xts_pt32[][32] = | |
| 1656 | { | |
| 1657 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1658 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1659 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1660 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
| 1661 | { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, | |
| 1662 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, | |
| 1663 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, | |
| 1664 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 }, | |
| 1665 | { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, | |
| 1666 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, | |
| 1667 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, | |
| 1668 | 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 }, | |
| 1669 | }; | |
| 1670 | ||
| 1671 | static const unsigned char aes_test_xts_ct32[][32] = | |
| 1672 | { | |
| 1673 | { 0x91, 0x7c, 0xf6, 0x9e, 0xbd, 0x68, 0xb2, 0xec, | |
| 1674 | 0x9b, 0x9f, 0xe9, 0xa3, 0xea, 0xdd, 0xa6, 0x92, | |
| 1675 | 0xcd, 0x43, 0xd2, 0xf5, 0x95, 0x98, 0xed, 0x85, | |
| 1676 | 0x8c, 0x02, 0xc2, 0x65, 0x2f, 0xbf, 0x92, 0x2e }, | |
| 1677 | { 0xc4, 0x54, 0x18, 0x5e, 0x6a, 0x16, 0x93, 0x6e, | |
| 1678 | 0x39, 0x33, 0x40, 0x38, 0xac, 0xef, 0x83, 0x8b, | |
| 1679 | 0xfb, 0x18, 0x6f, 0xff, 0x74, 0x80, 0xad, 0xc4, | |
| 1680 | 0x28, 0x93, 0x82, 0xec, 0xd6, 0xd3, 0x94, 0xf0 }, | |
| 1681 | { 0xaf, 0x85, 0x33, 0x6b, 0x59, 0x7a, 0xfc, 0x1a, | |
| 1682 | 0x90, 0x0b, 0x2e, 0xb2, 0x1e, 0xc9, 0x49, 0xd2, | |
| 1683 | 0x92, 0xdf, 0x4c, 0x04, 0x7e, 0x0b, 0x21, 0x53, | |
| 1684 | 0x21, 0x86, 0xa5, 0x97, 0x1a, 0x22, 0x7a, 0x89 }, | |
| 1685 | }; | |
| 1686 | ||
| 1687 | static const unsigned char aes_test_xts_data_unit[][16] = | |
| 1688 | { | |
| 1689 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 1690 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
| 1691 | { 0x33, 0x33, 0x33, 0x33, 0x33, 0x00, 0x00, 0x00, | |
| 1692 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
| 1693 | { 0x33, 0x33, 0x33, 0x33, 0x33, 0x00, 0x00, 0x00, | |
| 1694 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, | |
| 1695 | }; | |
| 1696 | ||
| 1697 | #endif /* MBEDTLS_CIPHER_MODE_XTS */ | |
| 1698 | ||
| 1699 | /* | |
| 1700 | * Checkup routine | |
| 1701 | */ | |
| 1702 | int mbedtls_aes_self_test( int verbose ) | |
| 1703 | { | |
| 1704 | int ret = 0, i, j, u, mode; | |
| 1705 | unsigned int keybits; | |
| 1706 | unsigned char key[32]; | |
| 1707 | unsigned char buf[64]; | |
| 1708 | const unsigned char *aes_tests; | |
| 1709 | #if defined(MBEDTLS_CIPHER_MODE_CBC) || defined(MBEDTLS_CIPHER_MODE_CFB) | |
| 1710 | unsigned char iv[16]; | |
| 1711 | #endif | |
| 1712 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
| 1713 | unsigned char prv[16]; | |
| 1714 | #endif | |
| 1715 | #if defined(MBEDTLS_CIPHER_MODE_CTR) || defined(MBEDTLS_CIPHER_MODE_CFB) || \ | |
| 1716 | defined(MBEDTLS_CIPHER_MODE_OFB) | |
| 1717 | size_t offset; | |
| 1718 | #endif | |
| 1719 | #if defined(MBEDTLS_CIPHER_MODE_CTR) || defined(MBEDTLS_CIPHER_MODE_XTS) | |
| 1720 | int len; | |
| 1721 | #endif | |
| 1722 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
| 1723 | unsigned char nonce_counter[16]; | |
| 1724 | unsigned char stream_block[16]; | |
| 1725 | #endif | |
| 1726 | mbedtls_aes_context ctx; | |
| 1727 | ||
| 1728 | memset( key, 0, 32 ); | |
| 1729 | mbedtls_aes_init( &ctx ); | |
| 1730 | ||
| 1731 | /* | |
| 1732 | * ECB mode | |
| 1733 | */ | |
| 1734 | for( i = 0; i < 6; i++ ) | |
| 1735 | { | |
| 1736 | u = i >> 1; | |
| 1737 | keybits = 128 + u * 64; | |
| 1738 | mode = i & 1; | |
| 1739 | ||
| 1740 | if( verbose != 0 ) | |
| 1741 | mbedtls_printf( " AES-ECB-%3d (%s): ", keybits, | |
| 1742 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1743 | ||
| 1744 | memset( buf, 0, 16 ); | |
| 1745 | ||
| 1746 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1747 | { | |
| 1748 | ret = mbedtls_aes_setkey_dec( &ctx, key, keybits ); | |
| 1749 | aes_tests = aes_test_ecb_dec[u]; | |
| 1750 | } | |
| 1751 | else | |
| 1752 | { | |
| 1753 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits ); | |
| 1754 | aes_tests = aes_test_ecb_enc[u]; | |
| 1755 | } | |
| 1756 | ||
| 1757 | /* | |
| 1758 | * AES-192 is an optional feature that may be unavailable when | |
| 1759 | * there is an alternative underlying implementation i.e. when | |
| 1760 | * MBEDTLS_AES_ALT is defined. | |
| 1761 | */ | |
| 1762 | if( ret == MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE && keybits == 192 ) | |
| 1763 | { | |
| 1764 | mbedtls_printf( "skipped\n" ); | |
| 1765 | continue; | |
| 1766 | } | |
| 1767 | else if( ret != 0 ) | |
| 1768 | { | |
| 1769 | goto exit; | |
| 1770 | } | |
| 1771 | ||
| 1772 | for( j = 0; j < 10000; j++ ) | |
| 1773 | { | |
| 1774 | ret = mbedtls_aes_crypt_ecb( &ctx, mode, buf, buf ); | |
| 1775 | if( ret != 0 ) | |
| 1776 | goto exit; | |
| 1777 | } | |
| 1778 | ||
| 1779 | if( memcmp( buf, aes_tests, 16 ) != 0 ) | |
| 1780 | { | |
| 1781 | ret = 1; | |
| 1782 | goto exit; | |
| 1783 | } | |
| 1784 | ||
| 1785 | if( verbose != 0 ) | |
| 1786 | mbedtls_printf( "passed\n" ); | |
| 1787 | } | |
| 1788 | ||
| 1789 | if( verbose != 0 ) | |
| 1790 | mbedtls_printf( "\n" ); | |
| 1791 | ||
| 1792 | #if defined(MBEDTLS_CIPHER_MODE_CBC) | |
| 1793 | /* | |
| 1794 | * CBC mode | |
| 1795 | */ | |
| 1796 | for( i = 0; i < 6; i++ ) | |
| 1797 | { | |
| 1798 | u = i >> 1; | |
| 1799 | keybits = 128 + u * 64; | |
| 1800 | mode = i & 1; | |
| 1801 | ||
| 1802 | if( verbose != 0 ) | |
| 1803 | mbedtls_printf( " AES-CBC-%3d (%s): ", keybits, | |
| 1804 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1805 | ||
| 1806 | memset( iv , 0, 16 ); | |
| 1807 | memset( prv, 0, 16 ); | |
| 1808 | memset( buf, 0, 16 ); | |
| 1809 | ||
| 1810 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1811 | { | |
| 1812 | ret = mbedtls_aes_setkey_dec( &ctx, key, keybits ); | |
| 1813 | aes_tests = aes_test_cbc_dec[u]; | |
| 1814 | } | |
| 1815 | else | |
| 1816 | { | |
| 1817 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits ); | |
| 1818 | aes_tests = aes_test_cbc_enc[u]; | |
| 1819 | } | |
| 1820 | ||
| 1821 | /* | |
| 1822 | * AES-192 is an optional feature that may be unavailable when | |
| 1823 | * there is an alternative underlying implementation i.e. when | |
| 1824 | * MBEDTLS_AES_ALT is defined. | |
| 1825 | */ | |
| 1826 | if( ret == MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE && keybits == 192 ) | |
| 1827 | { | |
| 1828 | mbedtls_printf( "skipped\n" ); | |
| 1829 | continue; | |
| 1830 | } | |
| 1831 | else if( ret != 0 ) | |
| 1832 | { | |
| 1833 | goto exit; | |
| 1834 | } | |
| 1835 | ||
| 1836 | for( j = 0; j < 10000; j++ ) | |
| 1837 | { | |
| 1838 | if( mode == MBEDTLS_AES_ENCRYPT ) | |
| 1839 | { | |
| 1840 | unsigned char tmp[16]; | |
| 1841 | ||
| 1842 | memcpy( tmp, prv, 16 ); | |
| 1843 | memcpy( prv, buf, 16 ); | |
| 1844 | memcpy( buf, tmp, 16 ); | |
| 1845 | } | |
| 1846 | ||
| 1847 | ret = mbedtls_aes_crypt_cbc( &ctx, mode, 16, iv, buf, buf ); | |
| 1848 | if( ret != 0 ) | |
| 1849 | goto exit; | |
| 1850 | ||
| 1851 | } | |
| 1852 | ||
| 1853 | if( memcmp( buf, aes_tests, 16 ) != 0 ) | |
| 1854 | { | |
| 1855 | ret = 1; | |
| 1856 | goto exit; | |
| 1857 | } | |
| 1858 | ||
| 1859 | if( verbose != 0 ) | |
| 1860 | mbedtls_printf( "passed\n" ); | |
| 1861 | } | |
| 1862 | ||
| 1863 | if( verbose != 0 ) | |
| 1864 | mbedtls_printf( "\n" ); | |
| 1865 | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | |
| 1866 | ||
| 1867 | #if defined(MBEDTLS_CIPHER_MODE_CFB) | |
| 1868 | /* | |
| 1869 | * CFB128 mode | |
| 1870 | */ | |
| 1871 | for( i = 0; i < 6; i++ ) | |
| 1872 | { | |
| 1873 | u = i >> 1; | |
| 1874 | keybits = 128 + u * 64; | |
| 1875 | mode = i & 1; | |
| 1876 | ||
| 1877 | if( verbose != 0 ) | |
| 1878 | mbedtls_printf( " AES-CFB128-%3d (%s): ", keybits, | |
| 1879 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1880 | ||
| 1881 | memcpy( iv, aes_test_cfb128_iv, 16 ); | |
| 1882 | memcpy( key, aes_test_cfb128_key[u], keybits / 8 ); | |
| 1883 | ||
| 1884 | offset = 0; | |
| 1885 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits ); | |
| 1886 | /* | |
| 1887 | * AES-192 is an optional feature that may be unavailable when | |
| 1888 | * there is an alternative underlying implementation i.e. when | |
| 1889 | * MBEDTLS_AES_ALT is defined. | |
| 1890 | */ | |
| 1891 | if( ret == MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE && keybits == 192 ) | |
| 1892 | { | |
| 1893 | mbedtls_printf( "skipped\n" ); | |
| 1894 | continue; | |
| 1895 | } | |
| 1896 | else if( ret != 0 ) | |
| 1897 | { | |
| 1898 | goto exit; | |
| 1899 | } | |
| 1900 | ||
| 1901 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1902 | { | |
| 1903 | memcpy( buf, aes_test_cfb128_ct[u], 64 ); | |
| 1904 | aes_tests = aes_test_cfb128_pt; | |
| 1905 | } | |
| 1906 | else | |
| 1907 | { | |
| 1908 | memcpy( buf, aes_test_cfb128_pt, 64 ); | |
| 1909 | aes_tests = aes_test_cfb128_ct[u]; | |
| 1910 | } | |
| 1911 | ||
| 1912 | ret = mbedtls_aes_crypt_cfb128( &ctx, mode, 64, &offset, iv, buf, buf ); | |
| 1913 | if( ret != 0 ) | |
| 1914 | goto exit; | |
| 1915 | ||
| 1916 | if( memcmp( buf, aes_tests, 64 ) != 0 ) | |
| 1917 | { | |
| 1918 | ret = 1; | |
| 1919 | goto exit; | |
| 1920 | } | |
| 1921 | ||
| 1922 | if( verbose != 0 ) | |
| 1923 | mbedtls_printf( "passed\n" ); | |
| 1924 | } | |
| 1925 | ||
| 1926 | if( verbose != 0 ) | |
| 1927 | mbedtls_printf( "\n" ); | |
| 1928 | #endif /* MBEDTLS_CIPHER_MODE_CFB */ | |
| 1929 | ||
| 1930 | #if defined(MBEDTLS_CIPHER_MODE_OFB) | |
| 1931 | /* | |
| 1932 | * OFB mode | |
| 1933 | */ | |
| 1934 | for( i = 0; i < 6; i++ ) | |
| 1935 | { | |
| 1936 | u = i >> 1; | |
| 1937 | keybits = 128 + u * 64; | |
| 1938 | mode = i & 1; | |
| 1939 | ||
| 1940 | if( verbose != 0 ) | |
| 1941 | mbedtls_printf( " AES-OFB-%3d (%s): ", keybits, | |
| 1942 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); | |
| 1943 | ||
| 1944 | memcpy( iv, aes_test_ofb_iv, 16 ); | |
| 1945 | memcpy( key, aes_test_ofb_key[u], keybits / 8 ); | |
| 1946 | ||
| 1947 | offset = 0; | |
| 1948 | ret = mbedtls_aes_setkey_enc( &ctx, key, keybits ); | |
| 1949 | /* | |
| 1950 | * AES-192 is an optional feature that may be unavailable when | |
| 1951 | * there is an alternative underlying implementation i.e. when | |
| 1952 | * MBEDTLS_AES_ALT is defined. | |
| 1953 | */ | |
| 1954 | if( ret == MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE && keybits == 192 ) | |
| 1955 | { | |
| 1956 | mbedtls_printf( "skipped\n" ); | |
| 1957 | continue; | |
| 1958 | } | |
| 1959 | else if( ret != 0 ) | |
| 1960 | { | |
| 1961 | goto exit; | |
| 1962 | } | |
| 1963 | ||
| 1964 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 1965 | { | |
| 1966 | memcpy( buf, aes_test_ofb_ct[u], 64 ); | |
| 1967 | aes_tests = aes_test_ofb_pt; | |
| 1968 | } | |
| 1969 | else | |
| 1970 | { | |
| 1971 | memcpy( buf, aes_test_ofb_pt, 64 ); | |
| 1972 | aes_tests = aes_test_ofb_ct[u]; | |
| 1973 | } | |
| 1974 | ||
| 1975 | ret = mbedtls_aes_crypt_ofb( &ctx, 64, &offset, iv, buf, buf ); | |
| 1976 | if( ret != 0 ) | |
| 1977 | goto exit; | |
| 1978 | ||
| 1979 | if( memcmp( buf, aes_tests, 64 ) != 0 ) | |
| 1980 | { | |
| 1981 | ret = 1; | |
| 1982 | goto exit; | |
| 1983 | } | |
| 1984 | ||
| 1985 | if( verbose != 0 ) | |
| 1986 | mbedtls_printf( "passed\n" ); | |
| 1987 | } | |
| 1988 | ||
| 1989 | if( verbose != 0 ) | |
| 1990 | mbedtls_printf( "\n" ); | |
| 1991 | #endif /* MBEDTLS_CIPHER_MODE_OFB */ | |
| 1992 | ||
| 1993 | #if defined(MBEDTLS_CIPHER_MODE_CTR) | |
| 1994 | /* | |
| 1995 | * CTR mode | |
| 1996 | */ | |
| 1997 | for( i = 0; i < 6; i++ ) | |
| 1998 | { | |
| 1999 | u = i >> 1; | |
| 2000 | mode = i & 1; | |
| 2001 | ||
| 2002 | if( verbose != 0 ) | |
| 2003 | mbedtls_printf( " AES-CTR-128 (%s): ", | |
| 2004 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); | |
| 2005 | ||
| 2006 | memcpy( nonce_counter, aes_test_ctr_nonce_counter[u], 16 ); | |
| 2007 | memcpy( key, aes_test_ctr_key[u], 16 ); | |
| 2008 | ||
| 2009 | offset = 0; | |
| 2010 | if( ( ret = mbedtls_aes_setkey_enc( &ctx, key, 128 ) ) != 0 ) | |
| 2011 | goto exit; | |
| 2012 | ||
| 2013 | len = aes_test_ctr_len[u]; | |
| 2014 | ||
| 2015 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 2016 | { | |
| 2017 | memcpy( buf, aes_test_ctr_ct[u], len ); | |
| 2018 | aes_tests = aes_test_ctr_pt[u]; | |
| 2019 | } | |
| 2020 | else | |
| 2021 | { | |
| 2022 | memcpy( buf, aes_test_ctr_pt[u], len ); | |
| 2023 | aes_tests = aes_test_ctr_ct[u]; | |
| 2024 | } | |
| 2025 | ||
| 2026 | ret = mbedtls_aes_crypt_ctr( &ctx, len, &offset, nonce_counter, | |
| 2027 | stream_block, buf, buf ); | |
| 2028 | if( ret != 0 ) | |
| 2029 | goto exit; | |
| 2030 | ||
| 2031 | if( memcmp( buf, aes_tests, len ) != 0 ) | |
| 2032 | { | |
| 2033 | ret = 1; | |
| 2034 | goto exit; | |
| 2035 | } | |
| 2036 | ||
| 2037 | if( verbose != 0 ) | |
| 2038 | mbedtls_printf( "passed\n" ); | |
| 2039 | } | |
| 2040 | ||
| 2041 | if( verbose != 0 ) | |
| 2042 | mbedtls_printf( "\n" ); | |
| 2043 | #endif /* MBEDTLS_CIPHER_MODE_CTR */ | |
| 2044 | ||
| 2045 | #if defined(MBEDTLS_CIPHER_MODE_XTS) | |
| 2046 | { | |
| 2047 | static const int num_tests = | |
| 2048 | sizeof(aes_test_xts_key) / sizeof(*aes_test_xts_key); | |
| 2049 | mbedtls_aes_xts_context ctx_xts; | |
| 2050 | ||
| 2051 | /* | |
| 2052 | * XTS mode | |
| 2053 | */ | |
| 2054 | mbedtls_aes_xts_init( &ctx_xts ); | |
| 2055 | ||
| 2056 | for( i = 0; i < num_tests << 1; i++ ) | |
| 2057 | { | |
| 2058 | const unsigned char *data_unit; | |
| 2059 | u = i >> 1; | |
| 2060 | mode = i & 1; | |
| 2061 | ||
| 2062 | if( verbose != 0 ) | |
| 2063 | mbedtls_printf( " AES-XTS-128 (%s): ", | |
| 2064 | ( mode == MBEDTLS_AES_DECRYPT ) ? "dec" : "enc" ); | |
| 2065 | ||
| 2066 | memset( key, 0, sizeof( key ) ); | |
| 2067 | memcpy( key, aes_test_xts_key[u], 32 ); | |
| 2068 | data_unit = aes_test_xts_data_unit[u]; | |
| 2069 | ||
| 2070 | len = sizeof( *aes_test_xts_ct32 ); | |
| 2071 | ||
| 2072 | if( mode == MBEDTLS_AES_DECRYPT ) | |
| 2073 | { | |
| 2074 | ret = mbedtls_aes_xts_setkey_dec( &ctx_xts, key, 256 ); | |
| 2075 | if( ret != 0) | |
| 2076 | goto exit; | |
| 2077 | memcpy( buf, aes_test_xts_ct32[u], len ); | |
| 2078 | aes_tests = aes_test_xts_pt32[u]; | |
| 2079 | } | |
| 2080 | else | |
| 2081 | { | |
| 2082 | ret = mbedtls_aes_xts_setkey_enc( &ctx_xts, key, 256 ); | |
| 2083 | if( ret != 0) | |
| 2084 | goto exit; | |
| 2085 | memcpy( buf, aes_test_xts_pt32[u], len ); | |
| 2086 | aes_tests = aes_test_xts_ct32[u]; | |
| 2087 | } | |
| 2088 | ||
| 2089 | ||
| 2090 | ret = mbedtls_aes_crypt_xts( &ctx_xts, mode, len, data_unit, | |
| 2091 | buf, buf ); | |
| 2092 | if( ret != 0 ) | |
| 2093 | goto exit; | |
| 2094 | ||
| 2095 | if( memcmp( buf, aes_tests, len ) != 0 ) | |
| 2096 | { | |
| 2097 | ret = 1; | |
| 2098 | goto exit; | |
| 2099 | } | |
| 2100 | ||
| 2101 | if( verbose != 0 ) | |
| 2102 | mbedtls_printf( "passed\n" ); | |
| 2103 | } | |
| 2104 | ||
| 2105 | if( verbose != 0 ) | |
| 2106 | mbedtls_printf( "\n" ); | |
| 2107 | ||
| 2108 | mbedtls_aes_xts_free( &ctx_xts ); | |
| 2109 | } | |
| 2110 | #endif /* MBEDTLS_CIPHER_MODE_XTS */ | |
| 2111 | ||
| 2112 | ret = 0; | |
| 2113 | ||
| 2114 | exit: | |
| 2115 | if( ret != 0 && verbose != 0 ) | |
| 2116 | mbedtls_printf( "failed\n" ); | |
| 2117 | ||
| 2118 | mbedtls_aes_free( &ctx ); | |
| 2119 | ||
| 2120 | return( ret ); | |
| 2121 | } | |
| 2122 | ||
| 2123 | #endif /* MBEDTLS_SELF_TEST */ | |
| 2124 | ||
| 2125 | #endif /* MBEDTLS_AES_C */ |