Brian Carlstrom | 221304e | 2010-04-15 14:22:36 -0700 | [diff] [blame] | 1 | /* crypto/aes/aes_core.c -*- mode:C; c-file-style: "eay" -*- */ |
| 2 | /** |
| 3 | * rijndael-alg-fst.c |
| 4 | * |
| 5 | * @version 3.0 (December 2000) |
| 6 | * |
| 7 | * Optimised ANSI C code for the Rijndael cipher (now AES) |
| 8 | * |
| 9 | * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be> |
| 10 | * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be> |
| 11 | * @author Paulo Barreto <paulo.barreto@terra.com.br> |
| 12 | * |
| 13 | * This code is hereby placed in the public domain. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS |
| 16 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE |
| 19 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 22 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 24 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 25 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * This is experimental x86[_64] derivative. It assumes little-endian |
| 30 | * byte order and expects CPU to sustain unaligned memory references. |
| 31 | * It is used as playground for cache-time attack mitigations and |
| 32 | * serves as reference C implementation for x86[_64] assembler. |
| 33 | * |
| 34 | * <appro@fy.chalmers.se> |
| 35 | */ |
| 36 | |
| 37 | |
| 38 | #ifndef AES_DEBUG |
| 39 | # ifndef NDEBUG |
| 40 | # define NDEBUG |
| 41 | # endif |
| 42 | #endif |
| 43 | #include <assert.h> |
| 44 | |
| 45 | #include <stdlib.h> |
| 46 | #include <openssl/aes.h> |
| 47 | #include "aes_locl.h" |
| 48 | |
| 49 | /* |
| 50 | * These two parameters control which table, 256-byte or 2KB, is |
| 51 | * referenced in outer and respectively inner rounds. |
| 52 | */ |
| 53 | #define AES_COMPACT_IN_OUTER_ROUNDS |
| 54 | #ifdef AES_COMPACT_IN_OUTER_ROUNDS |
| 55 | /* AES_COMPACT_IN_OUTER_ROUNDS costs ~30% in performance, while |
| 56 | * adding AES_COMPACT_IN_INNER_ROUNDS reduces benchmark *further* |
| 57 | * by factor of ~2. */ |
| 58 | # undef AES_COMPACT_IN_INNER_ROUNDS |
| 59 | #endif |
| 60 | |
| 61 | #if 1 |
| 62 | static void prefetch256(const void *table) |
| 63 | { |
| 64 | volatile unsigned long *t=(void *)table,ret; |
| 65 | unsigned long sum; |
| 66 | int i; |
| 67 | |
| 68 | /* 32 is common least cache-line size */ |
| 69 | for (sum=0,i=0;i<256/sizeof(t[0]);i+=32/sizeof(t[0])) sum ^= t[i]; |
| 70 | |
| 71 | ret = sum; |
| 72 | } |
| 73 | #else |
| 74 | # define prefetch256(t) |
| 75 | #endif |
| 76 | |
| 77 | #undef GETU32 |
| 78 | #define GETU32(p) (*((u32*)(p))) |
| 79 | |
| 80 | #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) |
| 81 | typedef unsigned __int64 u64; |
| 82 | #define U64(C) C##UI64 |
| 83 | #elif defined(__arch64__) |
| 84 | typedef unsigned long u64; |
| 85 | #define U64(C) C##UL |
| 86 | #else |
| 87 | typedef unsigned long long u64; |
| 88 | #define U64(C) C##ULL |
| 89 | #endif |
| 90 | |
| 91 | #undef ROTATE |
| 92 | #if defined(_MSC_VER) || defined(__ICC) |
| 93 | # define ROTATE(a,n) _lrotl(a,n) |
| 94 | #elif defined(__GNUC__) && __GNUC__>=2 |
| 95 | # if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) |
| 96 | # define ROTATE(a,n) ({ register unsigned int ret; \ |
| 97 | asm ( \ |
| 98 | "roll %1,%0" \ |
| 99 | : "=r"(ret) \ |
| 100 | : "I"(n), "0"(a) \ |
| 101 | : "cc"); \ |
| 102 | ret; \ |
| 103 | }) |
| 104 | # endif |
| 105 | #endif |
| 106 | /* |
| 107 | Te [x] = S [x].[02, 01, 01, 03, 02, 01, 01, 03]; |
| 108 | Te0[x] = S [x].[02, 01, 01, 03]; |
| 109 | Te1[x] = S [x].[03, 02, 01, 01]; |
| 110 | Te2[x] = S [x].[01, 03, 02, 01]; |
| 111 | Te3[x] = S [x].[01, 01, 03, 02]; |
| 112 | */ |
| 113 | #define Te0 (u32)((u64*)((u8*)Te+0)) |
| 114 | #define Te1 (u32)((u64*)((u8*)Te+3)) |
| 115 | #define Te2 (u32)((u64*)((u8*)Te+2)) |
| 116 | #define Te3 (u32)((u64*)((u8*)Te+1)) |
| 117 | /* |
| 118 | Td [x] = Si[x].[0e, 09, 0d, 0b, 0e, 09, 0d, 0b]; |
| 119 | Td0[x] = Si[x].[0e, 09, 0d, 0b]; |
| 120 | Td1[x] = Si[x].[0b, 0e, 09, 0d]; |
| 121 | Td2[x] = Si[x].[0d, 0b, 0e, 09]; |
| 122 | Td3[x] = Si[x].[09, 0d, 0b, 0e]; |
| 123 | Td4[x] = Si[x].[01]; |
| 124 | */ |
| 125 | #define Td0 (u32)((u64*)((u8*)Td+0)) |
| 126 | #define Td1 (u32)((u64*)((u8*)Td+3)) |
| 127 | #define Td2 (u32)((u64*)((u8*)Td+2)) |
| 128 | #define Td3 (u32)((u64*)((u8*)Td+1)) |
| 129 | |
| 130 | static const u64 Te[256] = { |
| 131 | U64(0xa56363c6a56363c6), U64(0x847c7cf8847c7cf8), |
| 132 | U64(0x997777ee997777ee), U64(0x8d7b7bf68d7b7bf6), |
| 133 | U64(0x0df2f2ff0df2f2ff), U64(0xbd6b6bd6bd6b6bd6), |
| 134 | U64(0xb16f6fdeb16f6fde), U64(0x54c5c59154c5c591), |
| 135 | U64(0x5030306050303060), U64(0x0301010203010102), |
| 136 | U64(0xa96767cea96767ce), U64(0x7d2b2b567d2b2b56), |
| 137 | U64(0x19fefee719fefee7), U64(0x62d7d7b562d7d7b5), |
| 138 | U64(0xe6abab4de6abab4d), U64(0x9a7676ec9a7676ec), |
| 139 | U64(0x45caca8f45caca8f), U64(0x9d82821f9d82821f), |
| 140 | U64(0x40c9c98940c9c989), U64(0x877d7dfa877d7dfa), |
| 141 | U64(0x15fafaef15fafaef), U64(0xeb5959b2eb5959b2), |
| 142 | U64(0xc947478ec947478e), U64(0x0bf0f0fb0bf0f0fb), |
| 143 | U64(0xecadad41ecadad41), U64(0x67d4d4b367d4d4b3), |
| 144 | U64(0xfda2a25ffda2a25f), U64(0xeaafaf45eaafaf45), |
| 145 | U64(0xbf9c9c23bf9c9c23), U64(0xf7a4a453f7a4a453), |
| 146 | U64(0x967272e4967272e4), U64(0x5bc0c09b5bc0c09b), |
| 147 | U64(0xc2b7b775c2b7b775), U64(0x1cfdfde11cfdfde1), |
| 148 | U64(0xae93933dae93933d), U64(0x6a26264c6a26264c), |
| 149 | U64(0x5a36366c5a36366c), U64(0x413f3f7e413f3f7e), |
| 150 | U64(0x02f7f7f502f7f7f5), U64(0x4fcccc834fcccc83), |
| 151 | U64(0x5c3434685c343468), U64(0xf4a5a551f4a5a551), |
| 152 | U64(0x34e5e5d134e5e5d1), U64(0x08f1f1f908f1f1f9), |
| 153 | U64(0x937171e2937171e2), U64(0x73d8d8ab73d8d8ab), |
| 154 | U64(0x5331316253313162), U64(0x3f15152a3f15152a), |
| 155 | U64(0x0c0404080c040408), U64(0x52c7c79552c7c795), |
| 156 | U64(0x6523234665232346), U64(0x5ec3c39d5ec3c39d), |
| 157 | U64(0x2818183028181830), U64(0xa1969637a1969637), |
| 158 | U64(0x0f05050a0f05050a), U64(0xb59a9a2fb59a9a2f), |
| 159 | U64(0x0907070e0907070e), U64(0x3612122436121224), |
| 160 | U64(0x9b80801b9b80801b), U64(0x3de2e2df3de2e2df), |
| 161 | U64(0x26ebebcd26ebebcd), U64(0x6927274e6927274e), |
| 162 | U64(0xcdb2b27fcdb2b27f), U64(0x9f7575ea9f7575ea), |
| 163 | U64(0x1b0909121b090912), U64(0x9e83831d9e83831d), |
| 164 | U64(0x742c2c58742c2c58), U64(0x2e1a1a342e1a1a34), |
| 165 | U64(0x2d1b1b362d1b1b36), U64(0xb26e6edcb26e6edc), |
| 166 | U64(0xee5a5ab4ee5a5ab4), U64(0xfba0a05bfba0a05b), |
| 167 | U64(0xf65252a4f65252a4), U64(0x4d3b3b764d3b3b76), |
| 168 | U64(0x61d6d6b761d6d6b7), U64(0xceb3b37dceb3b37d), |
| 169 | U64(0x7b2929527b292952), U64(0x3ee3e3dd3ee3e3dd), |
| 170 | U64(0x712f2f5e712f2f5e), U64(0x9784841397848413), |
| 171 | U64(0xf55353a6f55353a6), U64(0x68d1d1b968d1d1b9), |
| 172 | U64(0x0000000000000000), U64(0x2cededc12cededc1), |
| 173 | U64(0x6020204060202040), U64(0x1ffcfce31ffcfce3), |
| 174 | U64(0xc8b1b179c8b1b179), U64(0xed5b5bb6ed5b5bb6), |
| 175 | U64(0xbe6a6ad4be6a6ad4), U64(0x46cbcb8d46cbcb8d), |
| 176 | U64(0xd9bebe67d9bebe67), U64(0x4b3939724b393972), |
| 177 | U64(0xde4a4a94de4a4a94), U64(0xd44c4c98d44c4c98), |
| 178 | U64(0xe85858b0e85858b0), U64(0x4acfcf854acfcf85), |
| 179 | U64(0x6bd0d0bb6bd0d0bb), U64(0x2aefefc52aefefc5), |
| 180 | U64(0xe5aaaa4fe5aaaa4f), U64(0x16fbfbed16fbfbed), |
| 181 | U64(0xc5434386c5434386), U64(0xd74d4d9ad74d4d9a), |
| 182 | U64(0x5533336655333366), U64(0x9485851194858511), |
| 183 | U64(0xcf45458acf45458a), U64(0x10f9f9e910f9f9e9), |
| 184 | U64(0x0602020406020204), U64(0x817f7ffe817f7ffe), |
| 185 | U64(0xf05050a0f05050a0), U64(0x443c3c78443c3c78), |
| 186 | U64(0xba9f9f25ba9f9f25), U64(0xe3a8a84be3a8a84b), |
| 187 | U64(0xf35151a2f35151a2), U64(0xfea3a35dfea3a35d), |
| 188 | U64(0xc0404080c0404080), U64(0x8a8f8f058a8f8f05), |
| 189 | U64(0xad92923fad92923f), U64(0xbc9d9d21bc9d9d21), |
| 190 | U64(0x4838387048383870), U64(0x04f5f5f104f5f5f1), |
| 191 | U64(0xdfbcbc63dfbcbc63), U64(0xc1b6b677c1b6b677), |
| 192 | U64(0x75dadaaf75dadaaf), U64(0x6321214263212142), |
| 193 | U64(0x3010102030101020), U64(0x1affffe51affffe5), |
| 194 | U64(0x0ef3f3fd0ef3f3fd), U64(0x6dd2d2bf6dd2d2bf), |
| 195 | U64(0x4ccdcd814ccdcd81), U64(0x140c0c18140c0c18), |
| 196 | U64(0x3513132635131326), U64(0x2fececc32fececc3), |
| 197 | U64(0xe15f5fbee15f5fbe), U64(0xa2979735a2979735), |
| 198 | U64(0xcc444488cc444488), U64(0x3917172e3917172e), |
| 199 | U64(0x57c4c49357c4c493), U64(0xf2a7a755f2a7a755), |
| 200 | U64(0x827e7efc827e7efc), U64(0x473d3d7a473d3d7a), |
| 201 | U64(0xac6464c8ac6464c8), U64(0xe75d5dbae75d5dba), |
| 202 | U64(0x2b1919322b191932), U64(0x957373e6957373e6), |
| 203 | U64(0xa06060c0a06060c0), U64(0x9881811998818119), |
| 204 | U64(0xd14f4f9ed14f4f9e), U64(0x7fdcdca37fdcdca3), |
| 205 | U64(0x6622224466222244), U64(0x7e2a2a547e2a2a54), |
| 206 | U64(0xab90903bab90903b), U64(0x8388880b8388880b), |
| 207 | U64(0xca46468cca46468c), U64(0x29eeeec729eeeec7), |
| 208 | U64(0xd3b8b86bd3b8b86b), U64(0x3c1414283c141428), |
| 209 | U64(0x79dedea779dedea7), U64(0xe25e5ebce25e5ebc), |
| 210 | U64(0x1d0b0b161d0b0b16), U64(0x76dbdbad76dbdbad), |
| 211 | U64(0x3be0e0db3be0e0db), U64(0x5632326456323264), |
| 212 | U64(0x4e3a3a744e3a3a74), U64(0x1e0a0a141e0a0a14), |
| 213 | U64(0xdb494992db494992), U64(0x0a06060c0a06060c), |
| 214 | U64(0x6c2424486c242448), U64(0xe45c5cb8e45c5cb8), |
| 215 | U64(0x5dc2c29f5dc2c29f), U64(0x6ed3d3bd6ed3d3bd), |
| 216 | U64(0xefacac43efacac43), U64(0xa66262c4a66262c4), |
| 217 | U64(0xa8919139a8919139), U64(0xa4959531a4959531), |
| 218 | U64(0x37e4e4d337e4e4d3), U64(0x8b7979f28b7979f2), |
| 219 | U64(0x32e7e7d532e7e7d5), U64(0x43c8c88b43c8c88b), |
| 220 | U64(0x5937376e5937376e), U64(0xb76d6ddab76d6dda), |
| 221 | U64(0x8c8d8d018c8d8d01), U64(0x64d5d5b164d5d5b1), |
| 222 | U64(0xd24e4e9cd24e4e9c), U64(0xe0a9a949e0a9a949), |
| 223 | U64(0xb46c6cd8b46c6cd8), U64(0xfa5656acfa5656ac), |
| 224 | U64(0x07f4f4f307f4f4f3), U64(0x25eaeacf25eaeacf), |
| 225 | U64(0xaf6565caaf6565ca), U64(0x8e7a7af48e7a7af4), |
| 226 | U64(0xe9aeae47e9aeae47), U64(0x1808081018080810), |
| 227 | U64(0xd5baba6fd5baba6f), U64(0x887878f0887878f0), |
| 228 | U64(0x6f25254a6f25254a), U64(0x722e2e5c722e2e5c), |
| 229 | U64(0x241c1c38241c1c38), U64(0xf1a6a657f1a6a657), |
| 230 | U64(0xc7b4b473c7b4b473), U64(0x51c6c69751c6c697), |
| 231 | U64(0x23e8e8cb23e8e8cb), U64(0x7cdddda17cdddda1), |
| 232 | U64(0x9c7474e89c7474e8), U64(0x211f1f3e211f1f3e), |
| 233 | U64(0xdd4b4b96dd4b4b96), U64(0xdcbdbd61dcbdbd61), |
| 234 | U64(0x868b8b0d868b8b0d), U64(0x858a8a0f858a8a0f), |
| 235 | U64(0x907070e0907070e0), U64(0x423e3e7c423e3e7c), |
| 236 | U64(0xc4b5b571c4b5b571), U64(0xaa6666ccaa6666cc), |
| 237 | U64(0xd8484890d8484890), U64(0x0503030605030306), |
| 238 | U64(0x01f6f6f701f6f6f7), U64(0x120e0e1c120e0e1c), |
| 239 | U64(0xa36161c2a36161c2), U64(0x5f35356a5f35356a), |
| 240 | U64(0xf95757aef95757ae), U64(0xd0b9b969d0b9b969), |
| 241 | U64(0x9186861791868617), U64(0x58c1c19958c1c199), |
| 242 | U64(0x271d1d3a271d1d3a), U64(0xb99e9e27b99e9e27), |
| 243 | U64(0x38e1e1d938e1e1d9), U64(0x13f8f8eb13f8f8eb), |
| 244 | U64(0xb398982bb398982b), U64(0x3311112233111122), |
| 245 | U64(0xbb6969d2bb6969d2), U64(0x70d9d9a970d9d9a9), |
| 246 | U64(0x898e8e07898e8e07), U64(0xa7949433a7949433), |
| 247 | U64(0xb69b9b2db69b9b2d), U64(0x221e1e3c221e1e3c), |
| 248 | U64(0x9287871592878715), U64(0x20e9e9c920e9e9c9), |
| 249 | U64(0x49cece8749cece87), U64(0xff5555aaff5555aa), |
| 250 | U64(0x7828285078282850), U64(0x7adfdfa57adfdfa5), |
| 251 | U64(0x8f8c8c038f8c8c03), U64(0xf8a1a159f8a1a159), |
| 252 | U64(0x8089890980898909), U64(0x170d0d1a170d0d1a), |
| 253 | U64(0xdabfbf65dabfbf65), U64(0x31e6e6d731e6e6d7), |
| 254 | U64(0xc6424284c6424284), U64(0xb86868d0b86868d0), |
| 255 | U64(0xc3414182c3414182), U64(0xb0999929b0999929), |
| 256 | U64(0x772d2d5a772d2d5a), U64(0x110f0f1e110f0f1e), |
| 257 | U64(0xcbb0b07bcbb0b07b), U64(0xfc5454a8fc5454a8), |
| 258 | U64(0xd6bbbb6dd6bbbb6d), U64(0x3a16162c3a16162c) |
| 259 | }; |
| 260 | |
| 261 | static const u8 Te4[256] = { |
| 262 | 0x63U, 0x7cU, 0x77U, 0x7bU, 0xf2U, 0x6bU, 0x6fU, 0xc5U, |
| 263 | 0x30U, 0x01U, 0x67U, 0x2bU, 0xfeU, 0xd7U, 0xabU, 0x76U, |
| 264 | 0xcaU, 0x82U, 0xc9U, 0x7dU, 0xfaU, 0x59U, 0x47U, 0xf0U, |
| 265 | 0xadU, 0xd4U, 0xa2U, 0xafU, 0x9cU, 0xa4U, 0x72U, 0xc0U, |
| 266 | 0xb7U, 0xfdU, 0x93U, 0x26U, 0x36U, 0x3fU, 0xf7U, 0xccU, |
| 267 | 0x34U, 0xa5U, 0xe5U, 0xf1U, 0x71U, 0xd8U, 0x31U, 0x15U, |
| 268 | 0x04U, 0xc7U, 0x23U, 0xc3U, 0x18U, 0x96U, 0x05U, 0x9aU, |
| 269 | 0x07U, 0x12U, 0x80U, 0xe2U, 0xebU, 0x27U, 0xb2U, 0x75U, |
| 270 | 0x09U, 0x83U, 0x2cU, 0x1aU, 0x1bU, 0x6eU, 0x5aU, 0xa0U, |
| 271 | 0x52U, 0x3bU, 0xd6U, 0xb3U, 0x29U, 0xe3U, 0x2fU, 0x84U, |
| 272 | 0x53U, 0xd1U, 0x00U, 0xedU, 0x20U, 0xfcU, 0xb1U, 0x5bU, |
| 273 | 0x6aU, 0xcbU, 0xbeU, 0x39U, 0x4aU, 0x4cU, 0x58U, 0xcfU, |
| 274 | 0xd0U, 0xefU, 0xaaU, 0xfbU, 0x43U, 0x4dU, 0x33U, 0x85U, |
| 275 | 0x45U, 0xf9U, 0x02U, 0x7fU, 0x50U, 0x3cU, 0x9fU, 0xa8U, |
| 276 | 0x51U, 0xa3U, 0x40U, 0x8fU, 0x92U, 0x9dU, 0x38U, 0xf5U, |
| 277 | 0xbcU, 0xb6U, 0xdaU, 0x21U, 0x10U, 0xffU, 0xf3U, 0xd2U, |
| 278 | 0xcdU, 0x0cU, 0x13U, 0xecU, 0x5fU, 0x97U, 0x44U, 0x17U, |
| 279 | 0xc4U, 0xa7U, 0x7eU, 0x3dU, 0x64U, 0x5dU, 0x19U, 0x73U, |
| 280 | 0x60U, 0x81U, 0x4fU, 0xdcU, 0x22U, 0x2aU, 0x90U, 0x88U, |
| 281 | 0x46U, 0xeeU, 0xb8U, 0x14U, 0xdeU, 0x5eU, 0x0bU, 0xdbU, |
| 282 | 0xe0U, 0x32U, 0x3aU, 0x0aU, 0x49U, 0x06U, 0x24U, 0x5cU, |
| 283 | 0xc2U, 0xd3U, 0xacU, 0x62U, 0x91U, 0x95U, 0xe4U, 0x79U, |
| 284 | 0xe7U, 0xc8U, 0x37U, 0x6dU, 0x8dU, 0xd5U, 0x4eU, 0xa9U, |
| 285 | 0x6cU, 0x56U, 0xf4U, 0xeaU, 0x65U, 0x7aU, 0xaeU, 0x08U, |
| 286 | 0xbaU, 0x78U, 0x25U, 0x2eU, 0x1cU, 0xa6U, 0xb4U, 0xc6U, |
| 287 | 0xe8U, 0xddU, 0x74U, 0x1fU, 0x4bU, 0xbdU, 0x8bU, 0x8aU, |
| 288 | 0x70U, 0x3eU, 0xb5U, 0x66U, 0x48U, 0x03U, 0xf6U, 0x0eU, |
| 289 | 0x61U, 0x35U, 0x57U, 0xb9U, 0x86U, 0xc1U, 0x1dU, 0x9eU, |
| 290 | 0xe1U, 0xf8U, 0x98U, 0x11U, 0x69U, 0xd9U, 0x8eU, 0x94U, |
| 291 | 0x9bU, 0x1eU, 0x87U, 0xe9U, 0xceU, 0x55U, 0x28U, 0xdfU, |
| 292 | 0x8cU, 0xa1U, 0x89U, 0x0dU, 0xbfU, 0xe6U, 0x42U, 0x68U, |
| 293 | 0x41U, 0x99U, 0x2dU, 0x0fU, 0xb0U, 0x54U, 0xbbU, 0x16U |
| 294 | }; |
| 295 | |
| 296 | static const u64 Td[256] = { |
| 297 | U64(0x50a7f45150a7f451), U64(0x5365417e5365417e), |
| 298 | U64(0xc3a4171ac3a4171a), U64(0x965e273a965e273a), |
| 299 | U64(0xcb6bab3bcb6bab3b), U64(0xf1459d1ff1459d1f), |
| 300 | U64(0xab58faacab58faac), U64(0x9303e34b9303e34b), |
| 301 | U64(0x55fa302055fa3020), U64(0xf66d76adf66d76ad), |
| 302 | U64(0x9176cc889176cc88), U64(0x254c02f5254c02f5), |
| 303 | U64(0xfcd7e54ffcd7e54f), U64(0xd7cb2ac5d7cb2ac5), |
| 304 | U64(0x8044352680443526), U64(0x8fa362b58fa362b5), |
| 305 | U64(0x495ab1de495ab1de), U64(0x671bba25671bba25), |
| 306 | U64(0x980eea45980eea45), U64(0xe1c0fe5de1c0fe5d), |
| 307 | U64(0x02752fc302752fc3), U64(0x12f04c8112f04c81), |
| 308 | U64(0xa397468da397468d), U64(0xc6f9d36bc6f9d36b), |
| 309 | U64(0xe75f8f03e75f8f03), U64(0x959c9215959c9215), |
| 310 | U64(0xeb7a6dbfeb7a6dbf), U64(0xda595295da595295), |
| 311 | U64(0x2d83bed42d83bed4), U64(0xd3217458d3217458), |
| 312 | U64(0x2969e0492969e049), U64(0x44c8c98e44c8c98e), |
| 313 | U64(0x6a89c2756a89c275), U64(0x78798ef478798ef4), |
| 314 | U64(0x6b3e58996b3e5899), U64(0xdd71b927dd71b927), |
| 315 | U64(0xb64fe1beb64fe1be), U64(0x17ad88f017ad88f0), |
| 316 | U64(0x66ac20c966ac20c9), U64(0xb43ace7db43ace7d), |
| 317 | U64(0x184adf63184adf63), U64(0x82311ae582311ae5), |
| 318 | U64(0x6033519760335197), U64(0x457f5362457f5362), |
| 319 | U64(0xe07764b1e07764b1), U64(0x84ae6bbb84ae6bbb), |
| 320 | U64(0x1ca081fe1ca081fe), U64(0x942b08f9942b08f9), |
| 321 | U64(0x5868487058684870), U64(0x19fd458f19fd458f), |
| 322 | U64(0x876cde94876cde94), U64(0xb7f87b52b7f87b52), |
| 323 | U64(0x23d373ab23d373ab), U64(0xe2024b72e2024b72), |
| 324 | U64(0x578f1fe3578f1fe3), U64(0x2aab55662aab5566), |
| 325 | U64(0x0728ebb20728ebb2), U64(0x03c2b52f03c2b52f), |
| 326 | U64(0x9a7bc5869a7bc586), U64(0xa50837d3a50837d3), |
| 327 | U64(0xf2872830f2872830), U64(0xb2a5bf23b2a5bf23), |
| 328 | U64(0xba6a0302ba6a0302), U64(0x5c8216ed5c8216ed), |
| 329 | U64(0x2b1ccf8a2b1ccf8a), U64(0x92b479a792b479a7), |
| 330 | U64(0xf0f207f3f0f207f3), U64(0xa1e2694ea1e2694e), |
| 331 | U64(0xcdf4da65cdf4da65), U64(0xd5be0506d5be0506), |
| 332 | U64(0x1f6234d11f6234d1), U64(0x8afea6c48afea6c4), |
| 333 | U64(0x9d532e349d532e34), U64(0xa055f3a2a055f3a2), |
| 334 | U64(0x32e18a0532e18a05), U64(0x75ebf6a475ebf6a4), |
| 335 | U64(0x39ec830b39ec830b), U64(0xaaef6040aaef6040), |
| 336 | U64(0x069f715e069f715e), U64(0x51106ebd51106ebd), |
| 337 | U64(0xf98a213ef98a213e), U64(0x3d06dd963d06dd96), |
| 338 | U64(0xae053eddae053edd), U64(0x46bde64d46bde64d), |
| 339 | U64(0xb58d5491b58d5491), U64(0x055dc471055dc471), |
| 340 | U64(0x6fd406046fd40604), U64(0xff155060ff155060), |
| 341 | U64(0x24fb981924fb9819), U64(0x97e9bdd697e9bdd6), |
| 342 | U64(0xcc434089cc434089), U64(0x779ed967779ed967), |
| 343 | U64(0xbd42e8b0bd42e8b0), U64(0x888b8907888b8907), |
| 344 | U64(0x385b19e7385b19e7), U64(0xdbeec879dbeec879), |
| 345 | U64(0x470a7ca1470a7ca1), U64(0xe90f427ce90f427c), |
| 346 | U64(0xc91e84f8c91e84f8), U64(0x0000000000000000), |
| 347 | U64(0x8386800983868009), U64(0x48ed2b3248ed2b32), |
| 348 | U64(0xac70111eac70111e), U64(0x4e725a6c4e725a6c), |
| 349 | U64(0xfbff0efdfbff0efd), U64(0x5638850f5638850f), |
| 350 | U64(0x1ed5ae3d1ed5ae3d), U64(0x27392d3627392d36), |
| 351 | U64(0x64d90f0a64d90f0a), U64(0x21a65c6821a65c68), |
| 352 | U64(0xd1545b9bd1545b9b), U64(0x3a2e36243a2e3624), |
| 353 | U64(0xb1670a0cb1670a0c), U64(0x0fe757930fe75793), |
| 354 | U64(0xd296eeb4d296eeb4), U64(0x9e919b1b9e919b1b), |
| 355 | U64(0x4fc5c0804fc5c080), U64(0xa220dc61a220dc61), |
| 356 | U64(0x694b775a694b775a), U64(0x161a121c161a121c), |
| 357 | U64(0x0aba93e20aba93e2), U64(0xe52aa0c0e52aa0c0), |
| 358 | U64(0x43e0223c43e0223c), U64(0x1d171b121d171b12), |
| 359 | U64(0x0b0d090e0b0d090e), U64(0xadc78bf2adc78bf2), |
| 360 | U64(0xb9a8b62db9a8b62d), U64(0xc8a91e14c8a91e14), |
| 361 | U64(0x8519f1578519f157), U64(0x4c0775af4c0775af), |
| 362 | U64(0xbbdd99eebbdd99ee), U64(0xfd607fa3fd607fa3), |
| 363 | U64(0x9f2601f79f2601f7), U64(0xbcf5725cbcf5725c), |
| 364 | U64(0xc53b6644c53b6644), U64(0x347efb5b347efb5b), |
| 365 | U64(0x7629438b7629438b), U64(0xdcc623cbdcc623cb), |
| 366 | U64(0x68fcedb668fcedb6), U64(0x63f1e4b863f1e4b8), |
| 367 | U64(0xcadc31d7cadc31d7), U64(0x1085634210856342), |
| 368 | U64(0x4022971340229713), U64(0x2011c6842011c684), |
| 369 | U64(0x7d244a857d244a85), U64(0xf83dbbd2f83dbbd2), |
| 370 | U64(0x1132f9ae1132f9ae), U64(0x6da129c76da129c7), |
| 371 | U64(0x4b2f9e1d4b2f9e1d), U64(0xf330b2dcf330b2dc), |
| 372 | U64(0xec52860dec52860d), U64(0xd0e3c177d0e3c177), |
| 373 | U64(0x6c16b32b6c16b32b), U64(0x99b970a999b970a9), |
| 374 | U64(0xfa489411fa489411), U64(0x2264e9472264e947), |
| 375 | U64(0xc48cfca8c48cfca8), U64(0x1a3ff0a01a3ff0a0), |
| 376 | U64(0xd82c7d56d82c7d56), U64(0xef903322ef903322), |
| 377 | U64(0xc74e4987c74e4987), U64(0xc1d138d9c1d138d9), |
| 378 | U64(0xfea2ca8cfea2ca8c), U64(0x360bd498360bd498), |
| 379 | U64(0xcf81f5a6cf81f5a6), U64(0x28de7aa528de7aa5), |
| 380 | U64(0x268eb7da268eb7da), U64(0xa4bfad3fa4bfad3f), |
| 381 | U64(0xe49d3a2ce49d3a2c), U64(0x0d9278500d927850), |
| 382 | U64(0x9bcc5f6a9bcc5f6a), U64(0x62467e5462467e54), |
| 383 | U64(0xc2138df6c2138df6), U64(0xe8b8d890e8b8d890), |
| 384 | U64(0x5ef7392e5ef7392e), U64(0xf5afc382f5afc382), |
| 385 | U64(0xbe805d9fbe805d9f), U64(0x7c93d0697c93d069), |
| 386 | U64(0xa92dd56fa92dd56f), U64(0xb31225cfb31225cf), |
| 387 | U64(0x3b99acc83b99acc8), U64(0xa77d1810a77d1810), |
| 388 | U64(0x6e639ce86e639ce8), U64(0x7bbb3bdb7bbb3bdb), |
| 389 | U64(0x097826cd097826cd), U64(0xf418596ef418596e), |
| 390 | U64(0x01b79aec01b79aec), U64(0xa89a4f83a89a4f83), |
| 391 | U64(0x656e95e6656e95e6), U64(0x7ee6ffaa7ee6ffaa), |
| 392 | U64(0x08cfbc2108cfbc21), U64(0xe6e815efe6e815ef), |
| 393 | U64(0xd99be7bad99be7ba), U64(0xce366f4ace366f4a), |
| 394 | U64(0xd4099fead4099fea), U64(0xd67cb029d67cb029), |
| 395 | U64(0xafb2a431afb2a431), U64(0x31233f2a31233f2a), |
| 396 | U64(0x3094a5c63094a5c6), U64(0xc066a235c066a235), |
| 397 | U64(0x37bc4e7437bc4e74), U64(0xa6ca82fca6ca82fc), |
| 398 | U64(0xb0d090e0b0d090e0), U64(0x15d8a73315d8a733), |
| 399 | U64(0x4a9804f14a9804f1), U64(0xf7daec41f7daec41), |
| 400 | U64(0x0e50cd7f0e50cd7f), U64(0x2ff691172ff69117), |
| 401 | U64(0x8dd64d768dd64d76), U64(0x4db0ef434db0ef43), |
| 402 | U64(0x544daacc544daacc), U64(0xdf0496e4df0496e4), |
| 403 | U64(0xe3b5d19ee3b5d19e), U64(0x1b886a4c1b886a4c), |
| 404 | U64(0xb81f2cc1b81f2cc1), U64(0x7f5165467f516546), |
| 405 | U64(0x04ea5e9d04ea5e9d), U64(0x5d358c015d358c01), |
| 406 | U64(0x737487fa737487fa), U64(0x2e410bfb2e410bfb), |
| 407 | U64(0x5a1d67b35a1d67b3), U64(0x52d2db9252d2db92), |
| 408 | U64(0x335610e9335610e9), U64(0x1347d66d1347d66d), |
| 409 | U64(0x8c61d79a8c61d79a), U64(0x7a0ca1377a0ca137), |
| 410 | U64(0x8e14f8598e14f859), U64(0x893c13eb893c13eb), |
| 411 | U64(0xee27a9ceee27a9ce), U64(0x35c961b735c961b7), |
| 412 | U64(0xede51ce1ede51ce1), U64(0x3cb1477a3cb1477a), |
| 413 | U64(0x59dfd29c59dfd29c), U64(0x3f73f2553f73f255), |
| 414 | U64(0x79ce141879ce1418), U64(0xbf37c773bf37c773), |
| 415 | U64(0xeacdf753eacdf753), U64(0x5baafd5f5baafd5f), |
| 416 | U64(0x146f3ddf146f3ddf), U64(0x86db447886db4478), |
| 417 | U64(0x81f3afca81f3afca), U64(0x3ec468b93ec468b9), |
| 418 | U64(0x2c3424382c342438), U64(0x5f40a3c25f40a3c2), |
| 419 | U64(0x72c31d1672c31d16), U64(0x0c25e2bc0c25e2bc), |
| 420 | U64(0x8b493c288b493c28), U64(0x41950dff41950dff), |
| 421 | U64(0x7101a8397101a839), U64(0xdeb30c08deb30c08), |
| 422 | U64(0x9ce4b4d89ce4b4d8), U64(0x90c1566490c15664), |
| 423 | U64(0x6184cb7b6184cb7b), U64(0x70b632d570b632d5), |
| 424 | U64(0x745c6c48745c6c48), U64(0x4257b8d04257b8d0) |
| 425 | }; |
| 426 | static const u8 Td4[256] = { |
| 427 | 0x52U, 0x09U, 0x6aU, 0xd5U, 0x30U, 0x36U, 0xa5U, 0x38U, |
| 428 | 0xbfU, 0x40U, 0xa3U, 0x9eU, 0x81U, 0xf3U, 0xd7U, 0xfbU, |
| 429 | 0x7cU, 0xe3U, 0x39U, 0x82U, 0x9bU, 0x2fU, 0xffU, 0x87U, |
| 430 | 0x34U, 0x8eU, 0x43U, 0x44U, 0xc4U, 0xdeU, 0xe9U, 0xcbU, |
| 431 | 0x54U, 0x7bU, 0x94U, 0x32U, 0xa6U, 0xc2U, 0x23U, 0x3dU, |
| 432 | 0xeeU, 0x4cU, 0x95U, 0x0bU, 0x42U, 0xfaU, 0xc3U, 0x4eU, |
| 433 | 0x08U, 0x2eU, 0xa1U, 0x66U, 0x28U, 0xd9U, 0x24U, 0xb2U, |
| 434 | 0x76U, 0x5bU, 0xa2U, 0x49U, 0x6dU, 0x8bU, 0xd1U, 0x25U, |
| 435 | 0x72U, 0xf8U, 0xf6U, 0x64U, 0x86U, 0x68U, 0x98U, 0x16U, |
| 436 | 0xd4U, 0xa4U, 0x5cU, 0xccU, 0x5dU, 0x65U, 0xb6U, 0x92U, |
| 437 | 0x6cU, 0x70U, 0x48U, 0x50U, 0xfdU, 0xedU, 0xb9U, 0xdaU, |
| 438 | 0x5eU, 0x15U, 0x46U, 0x57U, 0xa7U, 0x8dU, 0x9dU, 0x84U, |
| 439 | 0x90U, 0xd8U, 0xabU, 0x00U, 0x8cU, 0xbcU, 0xd3U, 0x0aU, |
| 440 | 0xf7U, 0xe4U, 0x58U, 0x05U, 0xb8U, 0xb3U, 0x45U, 0x06U, |
| 441 | 0xd0U, 0x2cU, 0x1eU, 0x8fU, 0xcaU, 0x3fU, 0x0fU, 0x02U, |
| 442 | 0xc1U, 0xafU, 0xbdU, 0x03U, 0x01U, 0x13U, 0x8aU, 0x6bU, |
| 443 | 0x3aU, 0x91U, 0x11U, 0x41U, 0x4fU, 0x67U, 0xdcU, 0xeaU, |
| 444 | 0x97U, 0xf2U, 0xcfU, 0xceU, 0xf0U, 0xb4U, 0xe6U, 0x73U, |
| 445 | 0x96U, 0xacU, 0x74U, 0x22U, 0xe7U, 0xadU, 0x35U, 0x85U, |
| 446 | 0xe2U, 0xf9U, 0x37U, 0xe8U, 0x1cU, 0x75U, 0xdfU, 0x6eU, |
| 447 | 0x47U, 0xf1U, 0x1aU, 0x71U, 0x1dU, 0x29U, 0xc5U, 0x89U, |
| 448 | 0x6fU, 0xb7U, 0x62U, 0x0eU, 0xaaU, 0x18U, 0xbeU, 0x1bU, |
| 449 | 0xfcU, 0x56U, 0x3eU, 0x4bU, 0xc6U, 0xd2U, 0x79U, 0x20U, |
| 450 | 0x9aU, 0xdbU, 0xc0U, 0xfeU, 0x78U, 0xcdU, 0x5aU, 0xf4U, |
| 451 | 0x1fU, 0xddU, 0xa8U, 0x33U, 0x88U, 0x07U, 0xc7U, 0x31U, |
| 452 | 0xb1U, 0x12U, 0x10U, 0x59U, 0x27U, 0x80U, 0xecU, 0x5fU, |
| 453 | 0x60U, 0x51U, 0x7fU, 0xa9U, 0x19U, 0xb5U, 0x4aU, 0x0dU, |
| 454 | 0x2dU, 0xe5U, 0x7aU, 0x9fU, 0x93U, 0xc9U, 0x9cU, 0xefU, |
| 455 | 0xa0U, 0xe0U, 0x3bU, 0x4dU, 0xaeU, 0x2aU, 0xf5U, 0xb0U, |
| 456 | 0xc8U, 0xebU, 0xbbU, 0x3cU, 0x83U, 0x53U, 0x99U, 0x61U, |
| 457 | 0x17U, 0x2bU, 0x04U, 0x7eU, 0xbaU, 0x77U, 0xd6U, 0x26U, |
| 458 | 0xe1U, 0x69U, 0x14U, 0x63U, 0x55U, 0x21U, 0x0cU, 0x7dU |
| 459 | }; |
| 460 | |
| 461 | static const u32 rcon[] = { |
| 462 | 0x00000001U, 0x00000002U, 0x00000004U, 0x00000008U, |
| 463 | 0x00000010U, 0x00000020U, 0x00000040U, 0x00000080U, |
| 464 | 0x0000001bU, 0x00000036U, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ |
| 465 | }; |
| 466 | |
| 467 | /** |
| 468 | * Expand the cipher key into the encryption key schedule. |
| 469 | */ |
| 470 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits, |
| 471 | AES_KEY *key) { |
| 472 | |
| 473 | u32 *rk; |
| 474 | int i = 0; |
| 475 | u32 temp; |
| 476 | |
| 477 | if (!userKey || !key) |
| 478 | return -1; |
| 479 | if (bits != 128 && bits != 192 && bits != 256) |
| 480 | return -2; |
| 481 | |
| 482 | rk = key->rd_key; |
| 483 | |
| 484 | if (bits==128) |
| 485 | key->rounds = 10; |
| 486 | else if (bits==192) |
| 487 | key->rounds = 12; |
| 488 | else |
| 489 | key->rounds = 14; |
| 490 | |
| 491 | rk[0] = GETU32(userKey ); |
| 492 | rk[1] = GETU32(userKey + 4); |
| 493 | rk[2] = GETU32(userKey + 8); |
| 494 | rk[3] = GETU32(userKey + 12); |
| 495 | if (bits == 128) { |
| 496 | while (1) { |
| 497 | temp = rk[3]; |
| 498 | rk[4] = rk[0] ^ |
| 499 | (Te4[(temp >> 8) & 0xff] ) ^ |
| 500 | (Te4[(temp >> 16) & 0xff] << 8) ^ |
| 501 | (Te4[(temp >> 24) ] << 16) ^ |
| 502 | (Te4[(temp ) & 0xff] << 24) ^ |
| 503 | rcon[i]; |
| 504 | rk[5] = rk[1] ^ rk[4]; |
| 505 | rk[6] = rk[2] ^ rk[5]; |
| 506 | rk[7] = rk[3] ^ rk[6]; |
| 507 | if (++i == 10) { |
| 508 | return 0; |
| 509 | } |
| 510 | rk += 4; |
| 511 | } |
| 512 | } |
| 513 | rk[4] = GETU32(userKey + 16); |
| 514 | rk[5] = GETU32(userKey + 20); |
| 515 | if (bits == 192) { |
| 516 | while (1) { |
| 517 | temp = rk[ 5]; |
| 518 | rk[ 6] = rk[ 0] ^ |
| 519 | (Te4[(temp >> 8) & 0xff] ) ^ |
| 520 | (Te4[(temp >> 16) & 0xff] << 8) ^ |
| 521 | (Te4[(temp >> 24) ] << 16) ^ |
| 522 | (Te4[(temp ) & 0xff] << 24) ^ |
| 523 | rcon[i]; |
| 524 | rk[ 7] = rk[ 1] ^ rk[ 6]; |
| 525 | rk[ 8] = rk[ 2] ^ rk[ 7]; |
| 526 | rk[ 9] = rk[ 3] ^ rk[ 8]; |
| 527 | if (++i == 8) { |
| 528 | return 0; |
| 529 | } |
| 530 | rk[10] = rk[ 4] ^ rk[ 9]; |
| 531 | rk[11] = rk[ 5] ^ rk[10]; |
| 532 | rk += 6; |
| 533 | } |
| 534 | } |
| 535 | rk[6] = GETU32(userKey + 24); |
| 536 | rk[7] = GETU32(userKey + 28); |
| 537 | if (bits == 256) { |
| 538 | while (1) { |
| 539 | temp = rk[ 7]; |
| 540 | rk[ 8] = rk[ 0] ^ |
| 541 | (Te4[(temp >> 8) & 0xff] ) ^ |
| 542 | (Te4[(temp >> 16) & 0xff] << 8) ^ |
| 543 | (Te4[(temp >> 24) ] << 16) ^ |
| 544 | (Te4[(temp ) & 0xff] << 24) ^ |
| 545 | rcon[i]; |
| 546 | rk[ 9] = rk[ 1] ^ rk[ 8]; |
| 547 | rk[10] = rk[ 2] ^ rk[ 9]; |
| 548 | rk[11] = rk[ 3] ^ rk[10]; |
| 549 | if (++i == 7) { |
| 550 | return 0; |
| 551 | } |
| 552 | temp = rk[11]; |
| 553 | rk[12] = rk[ 4] ^ |
| 554 | (Te4[(temp ) & 0xff] ) ^ |
| 555 | (Te4[(temp >> 8) & 0xff] << 8) ^ |
| 556 | (Te4[(temp >> 16) & 0xff] << 16) ^ |
| 557 | (Te4[(temp >> 24) ] << 24); |
| 558 | rk[13] = rk[ 5] ^ rk[12]; |
| 559 | rk[14] = rk[ 6] ^ rk[13]; |
| 560 | rk[15] = rk[ 7] ^ rk[14]; |
| 561 | |
| 562 | rk += 8; |
| 563 | } |
| 564 | } |
| 565 | return 0; |
| 566 | } |
| 567 | |
| 568 | /** |
| 569 | * Expand the cipher key into the decryption key schedule. |
| 570 | */ |
| 571 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits, |
| 572 | AES_KEY *key) { |
| 573 | |
| 574 | u32 *rk; |
| 575 | int i, j, status; |
| 576 | u32 temp; |
| 577 | |
| 578 | /* first, start with an encryption schedule */ |
| 579 | status = AES_set_encrypt_key(userKey, bits, key); |
| 580 | if (status < 0) |
| 581 | return status; |
| 582 | |
| 583 | rk = key->rd_key; |
| 584 | |
| 585 | /* invert the order of the round keys: */ |
| 586 | for (i = 0, j = 4*(key->rounds); i < j; i += 4, j -= 4) { |
| 587 | temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp; |
| 588 | temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp; |
| 589 | temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp; |
| 590 | temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp; |
| 591 | } |
| 592 | /* apply the inverse MixColumn transform to all round keys but the first and the last: */ |
| 593 | for (i = 1; i < (key->rounds); i++) { |
| 594 | rk += 4; |
| 595 | #if 1 |
| 596 | for (j = 0; j < 4; j++) { |
| 597 | u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m; |
| 598 | |
| 599 | tp1 = rk[j]; |
| 600 | m = tp1 & 0x80808080; |
| 601 | tp2 = ((tp1 & 0x7f7f7f7f) << 1) ^ |
| 602 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 603 | m = tp2 & 0x80808080; |
| 604 | tp4 = ((tp2 & 0x7f7f7f7f) << 1) ^ |
| 605 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 606 | m = tp4 & 0x80808080; |
| 607 | tp8 = ((tp4 & 0x7f7f7f7f) << 1) ^ |
| 608 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 609 | tp9 = tp8 ^ tp1; |
| 610 | tpb = tp9 ^ tp2; |
| 611 | tpd = tp9 ^ tp4; |
| 612 | tpe = tp8 ^ tp4 ^ tp2; |
| 613 | #if defined(ROTATE) |
| 614 | rk[j] = tpe ^ ROTATE(tpd,16) ^ |
| 615 | ROTATE(tp9,8) ^ ROTATE(tpb,24); |
| 616 | #else |
| 617 | rk[j] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ |
| 618 | (tp9 >> 24) ^ (tp9 << 8) ^ |
| 619 | (tpb >> 8) ^ (tpb << 24); |
| 620 | #endif |
| 621 | } |
| 622 | #else |
| 623 | rk[0] = |
| 624 | Td0[Te2[(rk[0] ) & 0xff] & 0xff] ^ |
| 625 | Td1[Te2[(rk[0] >> 8) & 0xff] & 0xff] ^ |
| 626 | Td2[Te2[(rk[0] >> 16) & 0xff] & 0xff] ^ |
| 627 | Td3[Te2[(rk[0] >> 24) ] & 0xff]; |
| 628 | rk[1] = |
| 629 | Td0[Te2[(rk[1] ) & 0xff] & 0xff] ^ |
| 630 | Td1[Te2[(rk[1] >> 8) & 0xff] & 0xff] ^ |
| 631 | Td2[Te2[(rk[1] >> 16) & 0xff] & 0xff] ^ |
| 632 | Td3[Te2[(rk[1] >> 24) ] & 0xff]; |
| 633 | rk[2] = |
| 634 | Td0[Te2[(rk[2] ) & 0xff] & 0xff] ^ |
| 635 | Td1[Te2[(rk[2] >> 8) & 0xff] & 0xff] ^ |
| 636 | Td2[Te2[(rk[2] >> 16) & 0xff] & 0xff] ^ |
| 637 | Td3[Te2[(rk[2] >> 24) ] & 0xff]; |
| 638 | rk[3] = |
| 639 | Td0[Te2[(rk[3] ) & 0xff] & 0xff] ^ |
| 640 | Td1[Te2[(rk[3] >> 8) & 0xff] & 0xff] ^ |
| 641 | Td2[Te2[(rk[3] >> 16) & 0xff] & 0xff] ^ |
| 642 | Td3[Te2[(rk[3] >> 24) ] & 0xff]; |
| 643 | #endif |
| 644 | } |
| 645 | return 0; |
| 646 | } |
| 647 | |
| 648 | /* |
| 649 | * Encrypt a single block |
| 650 | * in and out can overlap |
| 651 | */ |
| 652 | void AES_encrypt(const unsigned char *in, unsigned char *out, |
| 653 | const AES_KEY *key) { |
| 654 | |
| 655 | const u32 *rk; |
| 656 | u32 s0, s1, s2, s3, t[4]; |
| 657 | int r; |
| 658 | |
| 659 | assert(in && out && key); |
| 660 | rk = key->rd_key; |
| 661 | |
| 662 | /* |
| 663 | * map byte array block to cipher state |
| 664 | * and add initial round key: |
| 665 | */ |
| 666 | s0 = GETU32(in ) ^ rk[0]; |
| 667 | s1 = GETU32(in + 4) ^ rk[1]; |
| 668 | s2 = GETU32(in + 8) ^ rk[2]; |
| 669 | s3 = GETU32(in + 12) ^ rk[3]; |
| 670 | |
| 671 | #if defined(AES_COMPACT_IN_OUTER_ROUNDS) |
| 672 | prefetch256(Te4); |
| 673 | |
| 674 | t[0] = Te4[(s0 ) & 0xff] ^ |
| 675 | Te4[(s1 >> 8) & 0xff] << 8 ^ |
| 676 | Te4[(s2 >> 16) & 0xff] << 16 ^ |
| 677 | Te4[(s3 >> 24) ] << 24; |
| 678 | t[1] = Te4[(s1 ) & 0xff] ^ |
| 679 | Te4[(s2 >> 8) & 0xff] << 8 ^ |
| 680 | Te4[(s3 >> 16) & 0xff] << 16 ^ |
| 681 | Te4[(s0 >> 24) ] << 24; |
| 682 | t[2] = Te4[(s2 ) & 0xff] ^ |
| 683 | Te4[(s3 >> 8) & 0xff] << 8 ^ |
| 684 | Te4[(s0 >> 16) & 0xff] << 16 ^ |
| 685 | Te4[(s1 >> 24) ] << 24; |
| 686 | t[3] = Te4[(s3 ) & 0xff] ^ |
| 687 | Te4[(s0 >> 8) & 0xff] << 8 ^ |
| 688 | Te4[(s1 >> 16) & 0xff] << 16 ^ |
| 689 | Te4[(s2 >> 24) ] << 24; |
| 690 | |
| 691 | /* now do the linear transform using words */ |
| 692 | { int i; |
| 693 | u32 r0, r1, r2; |
| 694 | |
| 695 | for (i = 0; i < 4; i++) { |
| 696 | r0 = t[i]; |
| 697 | r1 = r0 & 0x80808080; |
| 698 | r2 = ((r0 & 0x7f7f7f7f) << 1) ^ |
| 699 | ((r1 - (r1 >> 7)) & 0x1b1b1b1b); |
| 700 | #if defined(ROTATE) |
| 701 | t[i] = r2 ^ ROTATE(r2,24) ^ ROTATE(r0,24) ^ |
| 702 | ROTATE(r0,16) ^ ROTATE(r0,8); |
| 703 | #else |
| 704 | t[i] = r2 ^ ((r2 ^ r0) << 24) ^ ((r2 ^ r0) >> 8) ^ |
| 705 | (r0 << 16) ^ (r0 >> 16) ^ |
| 706 | (r0 << 8) ^ (r0 >> 24); |
| 707 | #endif |
| 708 | t[i] ^= rk[4+i]; |
| 709 | } |
| 710 | } |
| 711 | #else |
| 712 | t[0] = Te0[(s0 ) & 0xff] ^ |
| 713 | Te1[(s1 >> 8) & 0xff] ^ |
| 714 | Te2[(s2 >> 16) & 0xff] ^ |
| 715 | Te3[(s3 >> 24) ] ^ |
| 716 | rk[4]; |
| 717 | t[1] = Te0[(s1 ) & 0xff] ^ |
| 718 | Te1[(s2 >> 8) & 0xff] ^ |
| 719 | Te2[(s3 >> 16) & 0xff] ^ |
| 720 | Te3[(s0 >> 24) ] ^ |
| 721 | rk[5]; |
| 722 | t[2] = Te0[(s2 ) & 0xff] ^ |
| 723 | Te1[(s3 >> 8) & 0xff] ^ |
| 724 | Te2[(s0 >> 16) & 0xff] ^ |
| 725 | Te3[(s1 >> 24) ] ^ |
| 726 | rk[6]; |
| 727 | t[3] = Te0[(s3 ) & 0xff] ^ |
| 728 | Te1[(s0 >> 8) & 0xff] ^ |
| 729 | Te2[(s1 >> 16) & 0xff] ^ |
| 730 | Te3[(s2 >> 24) ] ^ |
| 731 | rk[7]; |
| 732 | #endif |
| 733 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 734 | |
| 735 | /* |
| 736 | * Nr - 2 full rounds: |
| 737 | */ |
| 738 | for (rk+=8,r=key->rounds-2; r>0; rk+=4,r--) { |
| 739 | #if defined(AES_COMPACT_IN_INNER_ROUNDS) |
| 740 | t[0] = Te4[(s0 ) & 0xff] ^ |
| 741 | Te4[(s1 >> 8) & 0xff] << 8 ^ |
| 742 | Te4[(s2 >> 16) & 0xff] << 16 ^ |
| 743 | Te4[(s3 >> 24) ] << 24; |
| 744 | t[1] = Te4[(s1 ) & 0xff] ^ |
| 745 | Te4[(s2 >> 8) & 0xff] << 8 ^ |
| 746 | Te4[(s3 >> 16) & 0xff] << 16 ^ |
| 747 | Te4[(s0 >> 24) ] << 24; |
| 748 | t[2] = Te4[(s2 ) & 0xff] ^ |
| 749 | Te4[(s3 >> 8) & 0xff] << 8 ^ |
| 750 | Te4[(s0 >> 16) & 0xff] << 16 ^ |
| 751 | Te4[(s1 >> 24) ] << 24; |
| 752 | t[3] = Te4[(s3 ) & 0xff] ^ |
| 753 | Te4[(s0 >> 8) & 0xff] << 8 ^ |
| 754 | Te4[(s1 >> 16) & 0xff] << 16 ^ |
| 755 | Te4[(s2 >> 24) ] << 24; |
| 756 | |
| 757 | /* now do the linear transform using words */ |
| 758 | { int i; |
| 759 | u32 r0, r1, r2; |
| 760 | |
| 761 | for (i = 0; i < 4; i++) { |
| 762 | r0 = t[i]; |
| 763 | r1 = r0 & 0x80808080; |
| 764 | r2 = ((r0 & 0x7f7f7f7f) << 1) ^ |
| 765 | ((r1 - (r1 >> 7)) & 0x1b1b1b1b); |
| 766 | #if defined(ROTATE) |
| 767 | t[i] = r2 ^ ROTATE(r2,24) ^ ROTATE(r0,24) ^ |
| 768 | ROTATE(r0,16) ^ ROTATE(r0,8); |
| 769 | #else |
| 770 | t[i] = r2 ^ ((r2 ^ r0) << 24) ^ ((r2 ^ r0) >> 8) ^ |
| 771 | (r0 << 16) ^ (r0 >> 16) ^ |
| 772 | (r0 << 8) ^ (r0 >> 24); |
| 773 | #endif |
| 774 | t[i] ^= rk[i]; |
| 775 | } |
| 776 | } |
| 777 | #else |
| 778 | t[0] = Te0[(s0 ) & 0xff] ^ |
| 779 | Te1[(s1 >> 8) & 0xff] ^ |
| 780 | Te2[(s2 >> 16) & 0xff] ^ |
| 781 | Te3[(s3 >> 24) ] ^ |
| 782 | rk[0]; |
| 783 | t[1] = Te0[(s1 ) & 0xff] ^ |
| 784 | Te1[(s2 >> 8) & 0xff] ^ |
| 785 | Te2[(s3 >> 16) & 0xff] ^ |
| 786 | Te3[(s0 >> 24) ] ^ |
| 787 | rk[1]; |
| 788 | t[2] = Te0[(s2 ) & 0xff] ^ |
| 789 | Te1[(s3 >> 8) & 0xff] ^ |
| 790 | Te2[(s0 >> 16) & 0xff] ^ |
| 791 | Te3[(s1 >> 24) ] ^ |
| 792 | rk[2]; |
| 793 | t[3] = Te0[(s3 ) & 0xff] ^ |
| 794 | Te1[(s0 >> 8) & 0xff] ^ |
| 795 | Te2[(s1 >> 16) & 0xff] ^ |
| 796 | Te3[(s2 >> 24) ] ^ |
| 797 | rk[3]; |
| 798 | #endif |
| 799 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 800 | } |
| 801 | /* |
| 802 | * apply last round and |
| 803 | * map cipher state to byte array block: |
| 804 | */ |
| 805 | #if defined(AES_COMPACT_IN_OUTER_ROUNDS) |
| 806 | prefetch256(Te4); |
| 807 | |
| 808 | *(u32*)(out+0) = |
| 809 | Te4[(s0 ) & 0xff] ^ |
| 810 | Te4[(s1 >> 8) & 0xff] << 8 ^ |
| 811 | Te4[(s2 >> 16) & 0xff] << 16 ^ |
| 812 | Te4[(s3 >> 24) ] << 24 ^ |
| 813 | rk[0]; |
| 814 | *(u32*)(out+4) = |
| 815 | Te4[(s1 ) & 0xff] ^ |
| 816 | Te4[(s2 >> 8) & 0xff] << 8 ^ |
| 817 | Te4[(s3 >> 16) & 0xff] << 16 ^ |
| 818 | Te4[(s0 >> 24) ] << 24 ^ |
| 819 | rk[1]; |
| 820 | *(u32*)(out+8) = |
| 821 | Te4[(s2 ) & 0xff] ^ |
| 822 | Te4[(s3 >> 8) & 0xff] << 8 ^ |
| 823 | Te4[(s0 >> 16) & 0xff] << 16 ^ |
| 824 | Te4[(s1 >> 24) ] << 24 ^ |
| 825 | rk[2]; |
| 826 | *(u32*)(out+12) = |
| 827 | Te4[(s3 ) & 0xff] ^ |
| 828 | Te4[(s0 >> 8) & 0xff] << 8 ^ |
| 829 | Te4[(s1 >> 16) & 0xff] << 16 ^ |
| 830 | Te4[(s2 >> 24) ] << 24 ^ |
| 831 | rk[3]; |
| 832 | #else |
| 833 | *(u32*)(out+0) = |
| 834 | (Te2[(s0 ) & 0xff] & 0x000000ffU) ^ |
| 835 | (Te3[(s1 >> 8) & 0xff] & 0x0000ff00U) ^ |
| 836 | (Te0[(s2 >> 16) & 0xff] & 0x00ff0000U) ^ |
| 837 | (Te1[(s3 >> 24) ] & 0xff000000U) ^ |
| 838 | rk[0]; |
| 839 | *(u32*)(out+4) = |
| 840 | (Te2[(s1 ) & 0xff] & 0x000000ffU) ^ |
| 841 | (Te3[(s2 >> 8) & 0xff] & 0x0000ff00U) ^ |
| 842 | (Te0[(s3 >> 16) & 0xff] & 0x00ff0000U) ^ |
| 843 | (Te1[(s0 >> 24) ] & 0xff000000U) ^ |
| 844 | rk[1]; |
| 845 | *(u32*)(out+8) = |
| 846 | (Te2[(s2 ) & 0xff] & 0x000000ffU) ^ |
| 847 | (Te3[(s3 >> 8) & 0xff] & 0x0000ff00U) ^ |
| 848 | (Te0[(s0 >> 16) & 0xff] & 0x00ff0000U) ^ |
| 849 | (Te1[(s1 >> 24) ] & 0xff000000U) ^ |
| 850 | rk[2]; |
| 851 | *(u32*)(out+12) = |
| 852 | (Te2[(s3 ) & 0xff] & 0x000000ffU) ^ |
| 853 | (Te3[(s0 >> 8) & 0xff] & 0x0000ff00U) ^ |
| 854 | (Te0[(s1 >> 16) & 0xff] & 0x00ff0000U) ^ |
| 855 | (Te1[(s2 >> 24) ] & 0xff000000U) ^ |
| 856 | rk[3]; |
| 857 | #endif |
| 858 | } |
| 859 | |
| 860 | /* |
| 861 | * Decrypt a single block |
| 862 | * in and out can overlap |
| 863 | */ |
| 864 | void AES_decrypt(const unsigned char *in, unsigned char *out, |
| 865 | const AES_KEY *key) { |
| 866 | |
| 867 | const u32 *rk; |
| 868 | u32 s0, s1, s2, s3, t[4]; |
| 869 | int r; |
| 870 | |
| 871 | assert(in && out && key); |
| 872 | rk = key->rd_key; |
| 873 | |
| 874 | /* |
| 875 | * map byte array block to cipher state |
| 876 | * and add initial round key: |
| 877 | */ |
| 878 | s0 = GETU32(in ) ^ rk[0]; |
| 879 | s1 = GETU32(in + 4) ^ rk[1]; |
| 880 | s2 = GETU32(in + 8) ^ rk[2]; |
| 881 | s3 = GETU32(in + 12) ^ rk[3]; |
| 882 | |
| 883 | #if defined(AES_COMPACT_IN_OUTER_ROUNDS) |
| 884 | prefetch256(Td4); |
| 885 | |
| 886 | t[0] = Td4[(s0 ) & 0xff] ^ |
| 887 | Td4[(s3 >> 8) & 0xff] << 8 ^ |
| 888 | Td4[(s2 >> 16) & 0xff] << 16 ^ |
| 889 | Td4[(s1 >> 24) ] << 24; |
| 890 | t[1] = Td4[(s1 ) & 0xff] ^ |
| 891 | Td4[(s0 >> 8) & 0xff] << 8 ^ |
| 892 | Td4[(s3 >> 16) & 0xff] << 16 ^ |
| 893 | Td4[(s2 >> 24) ] << 24; |
| 894 | t[2] = Td4[(s2 ) & 0xff] ^ |
| 895 | Td4[(s1 >> 8) & 0xff] << 8 ^ |
| 896 | Td4[(s0 >> 16) & 0xff] << 16 ^ |
| 897 | Td4[(s3 >> 24) ] << 24; |
| 898 | t[3] = Td4[(s3 ) & 0xff] ^ |
| 899 | Td4[(s2 >> 8) & 0xff] << 8 ^ |
| 900 | Td4[(s1 >> 16) & 0xff] << 16 ^ |
| 901 | Td4[(s0 >> 24) ] << 24; |
| 902 | |
| 903 | /* now do the linear transform using words */ |
| 904 | { int i; |
| 905 | u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m; |
| 906 | |
| 907 | for (i = 0; i < 4; i++) { |
| 908 | tp1 = t[i]; |
| 909 | m = tp1 & 0x80808080; |
| 910 | tp2 = ((tp1 & 0x7f7f7f7f) << 1) ^ |
| 911 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 912 | m = tp2 & 0x80808080; |
| 913 | tp4 = ((tp2 & 0x7f7f7f7f) << 1) ^ |
| 914 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 915 | m = tp4 & 0x80808080; |
| 916 | tp8 = ((tp4 & 0x7f7f7f7f) << 1) ^ |
| 917 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 918 | tp9 = tp8 ^ tp1; |
| 919 | tpb = tp9 ^ tp2; |
| 920 | tpd = tp9 ^ tp4; |
| 921 | tpe = tp8 ^ tp4 ^ tp2; |
| 922 | #if defined(ROTATE) |
| 923 | t[i] = tpe ^ ROTATE(tpd,16) ^ |
| 924 | ROTATE(tp9,8) ^ ROTATE(tpb,24); |
| 925 | #else |
| 926 | t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ |
| 927 | (tp9 >> 24) ^ (tp9 << 8) ^ |
| 928 | (tpb >> 8) ^ (tpb << 24); |
| 929 | #endif |
| 930 | t[i] ^= rk[4+i]; |
| 931 | } |
| 932 | } |
| 933 | #else |
| 934 | t[0] = Td0[(s0 ) & 0xff] ^ |
| 935 | Td1[(s3 >> 8) & 0xff] ^ |
| 936 | Td2[(s2 >> 16) & 0xff] ^ |
| 937 | Td3[(s1 >> 24) ] ^ |
| 938 | rk[4]; |
| 939 | t[1] = Td0[(s1 ) & 0xff] ^ |
| 940 | Td1[(s0 >> 8) & 0xff] ^ |
| 941 | Td2[(s3 >> 16) & 0xff] ^ |
| 942 | Td3[(s2 >> 24) ] ^ |
| 943 | rk[5]; |
| 944 | t[2] = Td0[(s2 ) & 0xff] ^ |
| 945 | Td1[(s1 >> 8) & 0xff] ^ |
| 946 | Td2[(s0 >> 16) & 0xff] ^ |
| 947 | Td3[(s3 >> 24) ] ^ |
| 948 | rk[6]; |
| 949 | t[3] = Td0[(s3 ) & 0xff] ^ |
| 950 | Td1[(s2 >> 8) & 0xff] ^ |
| 951 | Td2[(s1 >> 16) & 0xff] ^ |
| 952 | Td3[(s0 >> 24) ] ^ |
| 953 | rk[7]; |
| 954 | #endif |
| 955 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 956 | |
| 957 | /* |
| 958 | * Nr - 2 full rounds: |
| 959 | */ |
| 960 | for (rk+=8,r=key->rounds-2; r>0; rk+=4,r--) { |
| 961 | #if defined(AES_COMPACT_IN_INNER_ROUNDS) |
| 962 | t[0] = Td4[(s0 ) & 0xff] ^ |
| 963 | Td4[(s3 >> 8) & 0xff] << 8 ^ |
| 964 | Td4[(s2 >> 16) & 0xff] << 16 ^ |
| 965 | Td4[(s1 >> 24) ] << 24; |
| 966 | t[1] = Td4[(s1 ) & 0xff] ^ |
| 967 | Td4[(s0 >> 8) & 0xff] << 8 ^ |
| 968 | Td4[(s3 >> 16) & 0xff] << 16 ^ |
| 969 | Td4[(s2 >> 24) ] << 24; |
| 970 | t[2] = Td4[(s2 ) & 0xff] ^ |
| 971 | Td4[(s1 >> 8) & 0xff] << 8 ^ |
| 972 | Td4[(s0 >> 16) & 0xff] << 16 ^ |
| 973 | Td4[(s3 >> 24) ] << 24; |
| 974 | t[3] = Td4[(s3 ) & 0xff] ^ |
| 975 | Td4[(s2 >> 8) & 0xff] << 8 ^ |
| 976 | Td4[(s1 >> 16) & 0xff] << 16 ^ |
| 977 | Td4[(s0 >> 24) ] << 24; |
| 978 | |
| 979 | /* now do the linear transform using words */ |
| 980 | { int i; |
| 981 | u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m; |
| 982 | |
| 983 | for (i = 0; i < 4; i++) { |
| 984 | tp1 = t[i]; |
| 985 | m = tp1 & 0x80808080; |
| 986 | tp2 = ((tp1 & 0x7f7f7f7f) << 1) ^ |
| 987 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 988 | m = tp2 & 0x80808080; |
| 989 | tp4 = ((tp2 & 0x7f7f7f7f) << 1) ^ |
| 990 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 991 | m = tp4 & 0x80808080; |
| 992 | tp8 = ((tp4 & 0x7f7f7f7f) << 1) ^ |
| 993 | ((m - (m >> 7)) & 0x1b1b1b1b); |
| 994 | tp9 = tp8 ^ tp1; |
| 995 | tpb = tp9 ^ tp2; |
| 996 | tpd = tp9 ^ tp4; |
| 997 | tpe = tp8 ^ tp4 ^ tp2; |
| 998 | #if defined(ROTATE) |
| 999 | t[i] = tpe ^ ROTATE(tpd,16) ^ |
| 1000 | ROTATE(tp9,8) ^ ROTATE(tpb,24); |
| 1001 | #else |
| 1002 | t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ |
| 1003 | (tp9 >> 24) ^ (tp9 << 8) ^ |
| 1004 | (tpb >> 8) ^ (tpb << 24); |
| 1005 | #endif |
| 1006 | t[i] ^= rk[i]; |
| 1007 | } |
| 1008 | } |
| 1009 | #else |
| 1010 | t[0] = Td0[(s0 ) & 0xff] ^ |
| 1011 | Td1[(s3 >> 8) & 0xff] ^ |
| 1012 | Td2[(s2 >> 16) & 0xff] ^ |
| 1013 | Td3[(s1 >> 24) ] ^ |
| 1014 | rk[0]; |
| 1015 | t[1] = Td0[(s1 ) & 0xff] ^ |
| 1016 | Td1[(s0 >> 8) & 0xff] ^ |
| 1017 | Td2[(s3 >> 16) & 0xff] ^ |
| 1018 | Td3[(s2 >> 24) ] ^ |
| 1019 | rk[1]; |
| 1020 | t[2] = Td0[(s2 ) & 0xff] ^ |
| 1021 | Td1[(s1 >> 8) & 0xff] ^ |
| 1022 | Td2[(s0 >> 16) & 0xff] ^ |
| 1023 | Td3[(s3 >> 24) ] ^ |
| 1024 | rk[2]; |
| 1025 | t[3] = Td0[(s3 ) & 0xff] ^ |
| 1026 | Td1[(s2 >> 8) & 0xff] ^ |
| 1027 | Td2[(s1 >> 16) & 0xff] ^ |
| 1028 | Td3[(s0 >> 24) ] ^ |
| 1029 | rk[3]; |
| 1030 | #endif |
| 1031 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 1032 | } |
| 1033 | /* |
| 1034 | * apply last round and |
| 1035 | * map cipher state to byte array block: |
| 1036 | */ |
| 1037 | prefetch256(Td4); |
| 1038 | |
| 1039 | *(u32*)(out+0) = |
| 1040 | (Td4[(s0 ) & 0xff]) ^ |
| 1041 | (Td4[(s3 >> 8) & 0xff] << 8) ^ |
| 1042 | (Td4[(s2 >> 16) & 0xff] << 16) ^ |
| 1043 | (Td4[(s1 >> 24) ] << 24) ^ |
| 1044 | rk[0]; |
| 1045 | *(u32*)(out+4) = |
| 1046 | (Td4[(s1 ) & 0xff]) ^ |
| 1047 | (Td4[(s0 >> 8) & 0xff] << 8) ^ |
| 1048 | (Td4[(s3 >> 16) & 0xff] << 16) ^ |
| 1049 | (Td4[(s2 >> 24) ] << 24) ^ |
| 1050 | rk[1]; |
| 1051 | *(u32*)(out+8) = |
| 1052 | (Td4[(s2 ) & 0xff]) ^ |
| 1053 | (Td4[(s1 >> 8) & 0xff] << 8) ^ |
| 1054 | (Td4[(s0 >> 16) & 0xff] << 16) ^ |
| 1055 | (Td4[(s3 >> 24) ] << 24) ^ |
| 1056 | rk[2]; |
| 1057 | *(u32*)(out+12) = |
| 1058 | (Td4[(s3 ) & 0xff]) ^ |
| 1059 | (Td4[(s2 >> 8) & 0xff] << 8) ^ |
| 1060 | (Td4[(s1 >> 16) & 0xff] << 16) ^ |
| 1061 | (Td4[(s0 >> 24) ] << 24) ^ |
| 1062 | rk[3]; |
| 1063 | } |