projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| 9c62bca1 AP |
1 | /** |
| 2 | * rijndael-alg-fst.c | |
| 3 | * | |
| 4 | * @version 3.0 (December 2000) | |
| 5 | * | |
| 6 | * Optimised ANSI C code for the Rijndael cipher (now AES) | |
| 7 | * | |
| 8 | * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be> | |
| 9 | * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be> | |
| 10 | * @author Paulo Barreto <paulo.barreto@terra.com.br> | |
| 11 | * | |
| 12 | * This code is hereby placed in the public domain. | |
| 13 | * | |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS | |
| 15 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 16 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE | |
| 18 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 19 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 20 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
| 21 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 22 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | |
| 23 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 24 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 | */ | |
| 26 | ||
| 27 | /* | |
| 28 | * This is experimental x86[_64] derivative. It assumes little-endian | |
| 29 | * byte order and expects CPU to sustain unaligned memory references. | |
| 30 | * It is used as playground for cache-time attack mitigations and | |
| 31 | * serves as reference C implementation for x86[_64] assembler. | |
| 32 | * | |
| 66186aee | 33 | * <appro@fy.chalmers.se> |
| 9c62bca1 AP |
34 | */ |
| 35 | ||
| 36 | ||
| 37 | #ifndef AES_DEBUG | |
| 38 | # ifndef NDEBUG | |
| 39 | # define NDEBUG | |
| 40 | # endif | |
| 41 | #endif | |
| 42 | #include <assert.h> | |
| 43 | ||
| 44 | #include <stdlib.h> | |
| 45 | #include <openssl/aes.h> | |
| 46 | #include "aes_locl.h" | |
| 47 | ||
| dff2922a AP |
48 | /* |
| 49 | * These two parameters control which table, 256-byte or 2KB, is | |
| 50 | * referenced in outer and respectively inner rounds. | |
| 51 | */ | |
| 52 | #define AES_COMPACT_IN_OUTER_ROUNDS | |
| 53 | #ifdef AES_COMPACT_IN_OUTER_ROUNDS | |
| 54 | /* AES_COMPACT_IN_OUTER_ROUNDS costs ~30% in performance, while | |
| 55 | * adding AES_COMPACT_IN_INNER_ROUNDS reduces benchmark *further* | |
| 56 | * by factor of ~2. */ | |
| 57 | # undef AES_COMPACT_IN_INNER_ROUNDS | |
| 58 | #endif | |
| 59 | ||
| 60 | #if 1 | |
| 61 | static void prefetch256(const void *table) | |
| 62 | { | |
| 66186aee MC |
63 | volatile unsigned long *t=(void *)table,ret; |
| 64 | unsigned long sum; | |
| 65 | int i; | |
| dff2922a | 66 | |
| 66186aee MC |
67 | /* 32 is common least cache-line size */ |
| 68 | for (sum=0,i=0;i<256/sizeof(t[0]);i+=32/sizeof(t[0])) sum ^= t[i]; | |
| dff2922a | 69 | |
| 66186aee | 70 | ret = sum; |
| dff2922a AP |
71 | } |
| 72 | #else | |
| 73 | # define prefetch256(t) | |
| 74 | #endif | |
| 75 | ||
| 9c62bca1 AP |
76 | #undef GETU32 |
| 77 | #define GETU32(p) (*((u32*)(p))) | |
| 9c62bca1 AP |
78 | |
| 79 | #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) | |
| 80 | typedef unsigned __int64 u64; | |
| 66186aee | 81 | #define U64(C) C##UI64 |
| 9c62bca1 AP |
82 | #elif defined(__arch64__) |
| 83 | typedef unsigned long u64; | |
| 66186aee | 84 | #define U64(C) C##UL |
| 9c62bca1 AP |
85 | #else |
| 86 | typedef unsigned long long u64; | |
| 66186aee | 87 | #define U64(C) C##ULL |
| 9c62bca1 AP |
88 | #endif |
| 89 | ||
| dff2922a | 90 | #undef ROTATE |
| cf5ecc3e | 91 | #if defined(_MSC_VER) |
| 66186aee | 92 | # define ROTATE(a,n) _lrotl(a,n) |
| cf5ecc3e | 93 | #elif defined(__ICC) |
| 66186aee | 94 | # define ROTATE(a,n) _rotl(a,n) |
| dff2922a AP |
95 | #elif defined(__GNUC__) && __GNUC__>=2 |
| 96 | # if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) | |
| 66186aee MC |
97 | # define ROTATE(a,n) ({ register unsigned int ret; \ |
| 98 | asm ( \ | |
| 99 | "roll %1,%0" \ | |
| 100 | : "=r"(ret) \ | |
| 101 | : "I"(n), "0"(a) \ | |
| 102 | : "cc"); \ | |
| 103 | ret; \ | |
| 104 | }) | |
| dff2922a AP |
105 | # endif |
| 106 | #endif | |
| 1d97c843 | 107 | /*- |
| 9c62bca1 AP |
108 | Te [x] = S [x].[02, 01, 01, 03, 02, 01, 01, 03]; |
| 109 | Te0[x] = S [x].[02, 01, 01, 03]; | |
| 110 | Te1[x] = S [x].[03, 02, 01, 01]; | |
| 111 | Te2[x] = S [x].[01, 03, 02, 01]; | |
| 112 | Te3[x] = S [x].[01, 01, 03, 02]; | |
| 113 | */ | |
| 86bdc0a3 AP |
114 | #define Te0 (u32)((u64*)((u8*)Te+0)) |
| 115 | #define Te1 (u32)((u64*)((u8*)Te+3)) | |
| 116 | #define Te2 (u32)((u64*)((u8*)Te+2)) | |
| 117 | #define Te3 (u32)((u64*)((u8*)Te+1)) | |
| 1d97c843 | 118 | /*- |
| 9c62bca1 AP |
119 | Td [x] = Si[x].[0e, 09, 0d, 0b, 0e, 09, 0d, 0b]; |
| 120 | Td0[x] = Si[x].[0e, 09, 0d, 0b]; | |
| 121 | Td1[x] = Si[x].[0b, 0e, 09, 0d]; | |
| 122 | Td2[x] = Si[x].[0d, 0b, 0e, 09]; | |
| 123 | Td3[x] = Si[x].[09, 0d, 0b, 0e]; | |
| 124 | Td4[x] = Si[x].[01]; | |
| 125 | */ | |
| 86bdc0a3 AP |
126 | #define Td0 (u32)((u64*)((u8*)Td+0)) |
| 127 | #define Td1 (u32)((u64*)((u8*)Td+3)) | |
| 128 | #define Td2 (u32)((u64*)((u8*)Td+2)) | |
| 129 | #define Td3 (u32)((u64*)((u8*)Td+1)) | |
| 9c62bca1 AP |
130 | |
| 131 | static const u64 Te[256] = { | |
| 132 | U64(0xa56363c6a56363c6), U64(0x847c7cf8847c7cf8), | |
| 133 | U64(0x997777ee997777ee), U64(0x8d7b7bf68d7b7bf6), | |
| 134 | U64(0x0df2f2ff0df2f2ff), U64(0xbd6b6bd6bd6b6bd6), | |
| 135 | U64(0xb16f6fdeb16f6fde), U64(0x54c5c59154c5c591), | |
| 136 | U64(0x5030306050303060), U64(0x0301010203010102), | |
| 137 | U64(0xa96767cea96767ce), U64(0x7d2b2b567d2b2b56), | |
| 138 | U64(0x19fefee719fefee7), U64(0x62d7d7b562d7d7b5), | |
| 139 | U64(0xe6abab4de6abab4d), U64(0x9a7676ec9a7676ec), | |
| 140 | U64(0x45caca8f45caca8f), U64(0x9d82821f9d82821f), | |
| 141 | U64(0x40c9c98940c9c989), U64(0x877d7dfa877d7dfa), | |
| 142 | U64(0x15fafaef15fafaef), U64(0xeb5959b2eb5959b2), | |
| 143 | U64(0xc947478ec947478e), U64(0x0bf0f0fb0bf0f0fb), | |
| 144 | U64(0xecadad41ecadad41), U64(0x67d4d4b367d4d4b3), | |
| 145 | U64(0xfda2a25ffda2a25f), U64(0xeaafaf45eaafaf45), | |
| 146 | U64(0xbf9c9c23bf9c9c23), U64(0xf7a4a453f7a4a453), | |
| 147 | U64(0x967272e4967272e4), U64(0x5bc0c09b5bc0c09b), | |
| 148 | U64(0xc2b7b775c2b7b775), U64(0x1cfdfde11cfdfde1), | |
| 149 | U64(0xae93933dae93933d), U64(0x6a26264c6a26264c), | |
| 150 | U64(0x5a36366c5a36366c), U64(0x413f3f7e413f3f7e), | |
| 151 | U64(0x02f7f7f502f7f7f5), U64(0x4fcccc834fcccc83), | |
| 152 | U64(0x5c3434685c343468), U64(0xf4a5a551f4a5a551), | |
| 153 | U64(0x34e5e5d134e5e5d1), U64(0x08f1f1f908f1f1f9), | |
| 154 | U64(0x937171e2937171e2), U64(0x73d8d8ab73d8d8ab), | |
| 155 | U64(0x5331316253313162), U64(0x3f15152a3f15152a), | |
| 156 | U64(0x0c0404080c040408), U64(0x52c7c79552c7c795), | |
| 157 | U64(0x6523234665232346), U64(0x5ec3c39d5ec3c39d), | |
| 158 | U64(0x2818183028181830), U64(0xa1969637a1969637), | |
| 159 | U64(0x0f05050a0f05050a), U64(0xb59a9a2fb59a9a2f), | |
| 160 | U64(0x0907070e0907070e), U64(0x3612122436121224), | |
| 161 | U64(0x9b80801b9b80801b), U64(0x3de2e2df3de2e2df), | |
| 162 | U64(0x26ebebcd26ebebcd), U64(0x6927274e6927274e), | |
| 163 | U64(0xcdb2b27fcdb2b27f), U64(0x9f7575ea9f7575ea), | |
| 164 | U64(0x1b0909121b090912), U64(0x9e83831d9e83831d), | |
| 165 | U64(0x742c2c58742c2c58), U64(0x2e1a1a342e1a1a34), | |
| 166 | U64(0x2d1b1b362d1b1b36), U64(0xb26e6edcb26e6edc), | |
| 167 | U64(0xee5a5ab4ee5a5ab4), U64(0xfba0a05bfba0a05b), | |
| 168 | U64(0xf65252a4f65252a4), U64(0x4d3b3b764d3b3b76), | |
| 169 | U64(0x61d6d6b761d6d6b7), U64(0xceb3b37dceb3b37d), | |
| 170 | U64(0x7b2929527b292952), U64(0x3ee3e3dd3ee3e3dd), | |
| 171 | U64(0x712f2f5e712f2f5e), U64(0x9784841397848413), | |
| 172 | U64(0xf55353a6f55353a6), U64(0x68d1d1b968d1d1b9), | |
| 173 | U64(0x0000000000000000), U64(0x2cededc12cededc1), | |
| 174 | U64(0x6020204060202040), U64(0x1ffcfce31ffcfce3), | |
| 175 | U64(0xc8b1b179c8b1b179), U64(0xed5b5bb6ed5b5bb6), | |
| 176 | U64(0xbe6a6ad4be6a6ad4), U64(0x46cbcb8d46cbcb8d), | |
| 177 | U64(0xd9bebe67d9bebe67), U64(0x4b3939724b393972), | |
| 178 | U64(0xde4a4a94de4a4a94), U64(0xd44c4c98d44c4c98), | |
| 179 | U64(0xe85858b0e85858b0), U64(0x4acfcf854acfcf85), | |
| 180 | U64(0x6bd0d0bb6bd0d0bb), U64(0x2aefefc52aefefc5), | |
| 181 | U64(0xe5aaaa4fe5aaaa4f), U64(0x16fbfbed16fbfbed), | |
| 182 | U64(0xc5434386c5434386), U64(0xd74d4d9ad74d4d9a), | |
| 183 | U64(0x5533336655333366), U64(0x9485851194858511), | |
| 184 | U64(0xcf45458acf45458a), U64(0x10f9f9e910f9f9e9), | |
| 185 | U64(0x0602020406020204), U64(0x817f7ffe817f7ffe), | |
| 186 | U64(0xf05050a0f05050a0), U64(0x443c3c78443c3c78), | |
| 187 | U64(0xba9f9f25ba9f9f25), U64(0xe3a8a84be3a8a84b), | |
| 188 | U64(0xf35151a2f35151a2), U64(0xfea3a35dfea3a35d), | |
| 189 | U64(0xc0404080c0404080), U64(0x8a8f8f058a8f8f05), | |
| 190 | U64(0xad92923fad92923f), U64(0xbc9d9d21bc9d9d21), | |
| 191 | U64(0x4838387048383870), U64(0x04f5f5f104f5f5f1), | |
| 192 | U64(0xdfbcbc63dfbcbc63), U64(0xc1b6b677c1b6b677), | |
| 193 | U64(0x75dadaaf75dadaaf), U64(0x6321214263212142), | |
| 194 | U64(0x3010102030101020), U64(0x1affffe51affffe5), | |
| 195 | U64(0x0ef3f3fd0ef3f3fd), U64(0x6dd2d2bf6dd2d2bf), | |
| 196 | U64(0x4ccdcd814ccdcd81), U64(0x140c0c18140c0c18), | |
| 197 | U64(0x3513132635131326), U64(0x2fececc32fececc3), | |
| 198 | U64(0xe15f5fbee15f5fbe), U64(0xa2979735a2979735), | |
| 199 | U64(0xcc444488cc444488), U64(0x3917172e3917172e), | |
| 200 | U64(0x57c4c49357c4c493), U64(0xf2a7a755f2a7a755), | |
| 201 | U64(0x827e7efc827e7efc), U64(0x473d3d7a473d3d7a), | |
| 202 | U64(0xac6464c8ac6464c8), U64(0xe75d5dbae75d5dba), | |
| 203 | U64(0x2b1919322b191932), U64(0x957373e6957373e6), | |
| 204 | U64(0xa06060c0a06060c0), U64(0x9881811998818119), | |
| 205 | U64(0xd14f4f9ed14f4f9e), U64(0x7fdcdca37fdcdca3), | |
| 206 | U64(0x6622224466222244), U64(0x7e2a2a547e2a2a54), | |
| 207 | U64(0xab90903bab90903b), U64(0x8388880b8388880b), | |
| 208 | U64(0xca46468cca46468c), U64(0x29eeeec729eeeec7), | |
| 209 | U64(0xd3b8b86bd3b8b86b), U64(0x3c1414283c141428), | |
| 210 | U64(0x79dedea779dedea7), U64(0xe25e5ebce25e5ebc), | |
| 211 | U64(0x1d0b0b161d0b0b16), U64(0x76dbdbad76dbdbad), | |
| 212 | U64(0x3be0e0db3be0e0db), U64(0x5632326456323264), | |
| 213 | U64(0x4e3a3a744e3a3a74), U64(0x1e0a0a141e0a0a14), | |
| 214 | U64(0xdb494992db494992), U64(0x0a06060c0a06060c), | |
| 215 | U64(0x6c2424486c242448), U64(0xe45c5cb8e45c5cb8), | |
| 216 | U64(0x5dc2c29f5dc2c29f), U64(0x6ed3d3bd6ed3d3bd), | |
| 217 | U64(0xefacac43efacac43), U64(0xa66262c4a66262c4), | |
| 218 | U64(0xa8919139a8919139), U64(0xa4959531a4959531), | |
| 219 | U64(0x37e4e4d337e4e4d3), U64(0x8b7979f28b7979f2), | |
| 220 | U64(0x32e7e7d532e7e7d5), U64(0x43c8c88b43c8c88b), | |
| 221 | U64(0x5937376e5937376e), U64(0xb76d6ddab76d6dda), | |
| 222 | U64(0x8c8d8d018c8d8d01), U64(0x64d5d5b164d5d5b1), | |
| 223 | U64(0xd24e4e9cd24e4e9c), U64(0xe0a9a949e0a9a949), | |
| 224 | U64(0xb46c6cd8b46c6cd8), U64(0xfa5656acfa5656ac), | |
| 225 | U64(0x07f4f4f307f4f4f3), U64(0x25eaeacf25eaeacf), | |
| 226 | U64(0xaf6565caaf6565ca), U64(0x8e7a7af48e7a7af4), | |
| 227 | U64(0xe9aeae47e9aeae47), U64(0x1808081018080810), | |
| 228 | U64(0xd5baba6fd5baba6f), U64(0x887878f0887878f0), | |
| 229 | U64(0x6f25254a6f25254a), U64(0x722e2e5c722e2e5c), | |
| 230 | U64(0x241c1c38241c1c38), U64(0xf1a6a657f1a6a657), | |
| 231 | U64(0xc7b4b473c7b4b473), U64(0x51c6c69751c6c697), | |
| 232 | U64(0x23e8e8cb23e8e8cb), U64(0x7cdddda17cdddda1), | |
| 233 | U64(0x9c7474e89c7474e8), U64(0x211f1f3e211f1f3e), | |
| 234 | U64(0xdd4b4b96dd4b4b96), U64(0xdcbdbd61dcbdbd61), | |
| 235 | U64(0x868b8b0d868b8b0d), U64(0x858a8a0f858a8a0f), | |
| 236 | U64(0x907070e0907070e0), U64(0x423e3e7c423e3e7c), | |
| 237 | U64(0xc4b5b571c4b5b571), U64(0xaa6666ccaa6666cc), | |
| 238 | U64(0xd8484890d8484890), U64(0x0503030605030306), | |
| 239 | U64(0x01f6f6f701f6f6f7), U64(0x120e0e1c120e0e1c), | |
| 240 | U64(0xa36161c2a36161c2), U64(0x5f35356a5f35356a), | |
| 241 | U64(0xf95757aef95757ae), U64(0xd0b9b969d0b9b969), | |
| 242 | U64(0x9186861791868617), U64(0x58c1c19958c1c199), | |
| 243 | U64(0x271d1d3a271d1d3a), U64(0xb99e9e27b99e9e27), | |
| 244 | U64(0x38e1e1d938e1e1d9), U64(0x13f8f8eb13f8f8eb), | |
| 245 | U64(0xb398982bb398982b), U64(0x3311112233111122), | |
| 246 | U64(0xbb6969d2bb6969d2), U64(0x70d9d9a970d9d9a9), | |
| 247 | U64(0x898e8e07898e8e07), U64(0xa7949433a7949433), | |
| 248 | U64(0xb69b9b2db69b9b2d), U64(0x221e1e3c221e1e3c), | |
| 249 | U64(0x9287871592878715), U64(0x20e9e9c920e9e9c9), | |
| 250 | U64(0x49cece8749cece87), U64(0xff5555aaff5555aa), | |
| 251 | U64(0x7828285078282850), U64(0x7adfdfa57adfdfa5), | |
| 252 | U64(0x8f8c8c038f8c8c03), U64(0xf8a1a159f8a1a159), | |
| 253 | U64(0x8089890980898909), U64(0x170d0d1a170d0d1a), | |
| 254 | U64(0xdabfbf65dabfbf65), U64(0x31e6e6d731e6e6d7), | |
| 255 | U64(0xc6424284c6424284), U64(0xb86868d0b86868d0), | |
| 256 | U64(0xc3414182c3414182), U64(0xb0999929b0999929), | |
| 257 | U64(0x772d2d5a772d2d5a), U64(0x110f0f1e110f0f1e), | |
| 258 | U64(0xcbb0b07bcbb0b07b), U64(0xfc5454a8fc5454a8), | |
| 259 | U64(0xd6bbbb6dd6bbbb6d), U64(0x3a16162c3a16162c) | |
| 260 | }; | |
| 261 | ||
| dff2922a AP |
262 | static const u8 Te4[256] = { |
| 263 | 0x63U, 0x7cU, 0x77U, 0x7bU, 0xf2U, 0x6bU, 0x6fU, 0xc5U, | |
| 264 | 0x30U, 0x01U, 0x67U, 0x2bU, 0xfeU, 0xd7U, 0xabU, 0x76U, | |
| 265 | 0xcaU, 0x82U, 0xc9U, 0x7dU, 0xfaU, 0x59U, 0x47U, 0xf0U, | |
| 266 | 0xadU, 0xd4U, 0xa2U, 0xafU, 0x9cU, 0xa4U, 0x72U, 0xc0U, | |
| 267 | 0xb7U, 0xfdU, 0x93U, 0x26U, 0x36U, 0x3fU, 0xf7U, 0xccU, | |
| 268 | 0x34U, 0xa5U, 0xe5U, 0xf1U, 0x71U, 0xd8U, 0x31U, 0x15U, | |
| 269 | 0x04U, 0xc7U, 0x23U, 0xc3U, 0x18U, 0x96U, 0x05U, 0x9aU, | |
| 270 | 0x07U, 0x12U, 0x80U, 0xe2U, 0xebU, 0x27U, 0xb2U, 0x75U, | |
| 271 | 0x09U, 0x83U, 0x2cU, 0x1aU, 0x1bU, 0x6eU, 0x5aU, 0xa0U, | |
| 272 | 0x52U, 0x3bU, 0xd6U, 0xb3U, 0x29U, 0xe3U, 0x2fU, 0x84U, | |
| 273 | 0x53U, 0xd1U, 0x00U, 0xedU, 0x20U, 0xfcU, 0xb1U, 0x5bU, | |
| 274 | 0x6aU, 0xcbU, 0xbeU, 0x39U, 0x4aU, 0x4cU, 0x58U, 0xcfU, | |
| 275 | 0xd0U, 0xefU, 0xaaU, 0xfbU, 0x43U, 0x4dU, 0x33U, 0x85U, | |
| 276 | 0x45U, 0xf9U, 0x02U, 0x7fU, 0x50U, 0x3cU, 0x9fU, 0xa8U, | |
| 277 | 0x51U, 0xa3U, 0x40U, 0x8fU, 0x92U, 0x9dU, 0x38U, 0xf5U, | |
| 278 | 0xbcU, 0xb6U, 0xdaU, 0x21U, 0x10U, 0xffU, 0xf3U, 0xd2U, | |
| 279 | 0xcdU, 0x0cU, 0x13U, 0xecU, 0x5fU, 0x97U, 0x44U, 0x17U, | |
| 280 | 0xc4U, 0xa7U, 0x7eU, 0x3dU, 0x64U, 0x5dU, 0x19U, 0x73U, | |
| 281 | 0x60U, 0x81U, 0x4fU, 0xdcU, 0x22U, 0x2aU, 0x90U, 0x88U, | |
| 282 | 0x46U, 0xeeU, 0xb8U, 0x14U, 0xdeU, 0x5eU, 0x0bU, 0xdbU, | |
| 283 | 0xe0U, 0x32U, 0x3aU, 0x0aU, 0x49U, 0x06U, 0x24U, 0x5cU, | |
| 284 | 0xc2U, 0xd3U, 0xacU, 0x62U, 0x91U, 0x95U, 0xe4U, 0x79U, | |
| 285 | 0xe7U, 0xc8U, 0x37U, 0x6dU, 0x8dU, 0xd5U, 0x4eU, 0xa9U, | |
| 286 | 0x6cU, 0x56U, 0xf4U, 0xeaU, 0x65U, 0x7aU, 0xaeU, 0x08U, | |
| 287 | 0xbaU, 0x78U, 0x25U, 0x2eU, 0x1cU, 0xa6U, 0xb4U, 0xc6U, | |
| 288 | 0xe8U, 0xddU, 0x74U, 0x1fU, 0x4bU, 0xbdU, 0x8bU, 0x8aU, | |
| 289 | 0x70U, 0x3eU, 0xb5U, 0x66U, 0x48U, 0x03U, 0xf6U, 0x0eU, | |
| 290 | 0x61U, 0x35U, 0x57U, 0xb9U, 0x86U, 0xc1U, 0x1dU, 0x9eU, | |
| 291 | 0xe1U, 0xf8U, 0x98U, 0x11U, 0x69U, 0xd9U, 0x8eU, 0x94U, | |
| 292 | 0x9bU, 0x1eU, 0x87U, 0xe9U, 0xceU, 0x55U, 0x28U, 0xdfU, | |
| 293 | 0x8cU, 0xa1U, 0x89U, 0x0dU, 0xbfU, 0xe6U, 0x42U, 0x68U, | |
| 294 | 0x41U, 0x99U, 0x2dU, 0x0fU, 0xb0U, 0x54U, 0xbbU, 0x16U | |
| 295 | }; | |
| 296 | ||
| 9c62bca1 AP |
297 | static const u64 Td[256] = { |
| 298 | U64(0x50a7f45150a7f451), U64(0x5365417e5365417e), | |
| 299 | U64(0xc3a4171ac3a4171a), U64(0x965e273a965e273a), | |
| 300 | U64(0xcb6bab3bcb6bab3b), U64(0xf1459d1ff1459d1f), | |
| 301 | U64(0xab58faacab58faac), U64(0x9303e34b9303e34b), | |
| 302 | U64(0x55fa302055fa3020), U64(0xf66d76adf66d76ad), | |
| 303 | U64(0x9176cc889176cc88), U64(0x254c02f5254c02f5), | |
| 304 | U64(0xfcd7e54ffcd7e54f), U64(0xd7cb2ac5d7cb2ac5), | |
| 305 | U64(0x8044352680443526), U64(0x8fa362b58fa362b5), | |
| 306 | U64(0x495ab1de495ab1de), U64(0x671bba25671bba25), | |
| 307 | U64(0x980eea45980eea45), U64(0xe1c0fe5de1c0fe5d), | |
| 308 | U64(0x02752fc302752fc3), U64(0x12f04c8112f04c81), | |
| 309 | U64(0xa397468da397468d), U64(0xc6f9d36bc6f9d36b), | |
| 310 | U64(0xe75f8f03e75f8f03), U64(0x959c9215959c9215), | |
| 311 | U64(0xeb7a6dbfeb7a6dbf), U64(0xda595295da595295), | |
| 312 | U64(0x2d83bed42d83bed4), U64(0xd3217458d3217458), | |
| 313 | U64(0x2969e0492969e049), U64(0x44c8c98e44c8c98e), | |
| 314 | U64(0x6a89c2756a89c275), U64(0x78798ef478798ef4), | |
| 315 | U64(0x6b3e58996b3e5899), U64(0xdd71b927dd71b927), | |
| 316 | U64(0xb64fe1beb64fe1be), U64(0x17ad88f017ad88f0), | |
| 317 | U64(0x66ac20c966ac20c9), U64(0xb43ace7db43ace7d), | |
| 318 | U64(0x184adf63184adf63), U64(0x82311ae582311ae5), | |
| 319 | U64(0x6033519760335197), U64(0x457f5362457f5362), | |
| 320 | U64(0xe07764b1e07764b1), U64(0x84ae6bbb84ae6bbb), | |
| 321 | U64(0x1ca081fe1ca081fe), U64(0x942b08f9942b08f9), | |
| 322 | U64(0x5868487058684870), U64(0x19fd458f19fd458f), | |
| 323 | U64(0x876cde94876cde94), U64(0xb7f87b52b7f87b52), | |
| 324 | U64(0x23d373ab23d373ab), U64(0xe2024b72e2024b72), | |
| 325 | U64(0x578f1fe3578f1fe3), U64(0x2aab55662aab5566), | |
| 326 | U64(0x0728ebb20728ebb2), U64(0x03c2b52f03c2b52f), | |
| 327 | U64(0x9a7bc5869a7bc586), U64(0xa50837d3a50837d3), | |
| 328 | U64(0xf2872830f2872830), U64(0xb2a5bf23b2a5bf23), | |
| 329 | U64(0xba6a0302ba6a0302), U64(0x5c8216ed5c8216ed), | |
| 330 | U64(0x2b1ccf8a2b1ccf8a), U64(0x92b479a792b479a7), | |
| 331 | U64(0xf0f207f3f0f207f3), U64(0xa1e2694ea1e2694e), | |
| 332 | U64(0xcdf4da65cdf4da65), U64(0xd5be0506d5be0506), | |
| 333 | U64(0x1f6234d11f6234d1), U64(0x8afea6c48afea6c4), | |
| 334 | U64(0x9d532e349d532e34), U64(0xa055f3a2a055f3a2), | |
| 335 | U64(0x32e18a0532e18a05), U64(0x75ebf6a475ebf6a4), | |
| 336 | U64(0x39ec830b39ec830b), U64(0xaaef6040aaef6040), | |
| 337 | U64(0x069f715e069f715e), U64(0x51106ebd51106ebd), | |
| 338 | U64(0xf98a213ef98a213e), U64(0x3d06dd963d06dd96), | |
| 339 | U64(0xae053eddae053edd), U64(0x46bde64d46bde64d), | |
| 340 | U64(0xb58d5491b58d5491), U64(0x055dc471055dc471), | |
| 341 | U64(0x6fd406046fd40604), U64(0xff155060ff155060), | |
| 342 | U64(0x24fb981924fb9819), U64(0x97e9bdd697e9bdd6), | |
| 343 | U64(0xcc434089cc434089), U64(0x779ed967779ed967), | |
| 344 | U64(0xbd42e8b0bd42e8b0), U64(0x888b8907888b8907), | |
| 345 | U64(0x385b19e7385b19e7), U64(0xdbeec879dbeec879), | |
| 346 | U64(0x470a7ca1470a7ca1), U64(0xe90f427ce90f427c), | |
| 347 | U64(0xc91e84f8c91e84f8), U64(0x0000000000000000), | |
| 348 | U64(0x8386800983868009), U64(0x48ed2b3248ed2b32), | |
| 349 | U64(0xac70111eac70111e), U64(0x4e725a6c4e725a6c), | |
| 350 | U64(0xfbff0efdfbff0efd), U64(0x5638850f5638850f), | |
| 351 | U64(0x1ed5ae3d1ed5ae3d), U64(0x27392d3627392d36), | |
| 352 | U64(0x64d90f0a64d90f0a), U64(0x21a65c6821a65c68), | |
| 353 | U64(0xd1545b9bd1545b9b), U64(0x3a2e36243a2e3624), | |
| 354 | U64(0xb1670a0cb1670a0c), U64(0x0fe757930fe75793), | |
| 355 | U64(0xd296eeb4d296eeb4), U64(0x9e919b1b9e919b1b), | |
| 356 | U64(0x4fc5c0804fc5c080), U64(0xa220dc61a220dc61), | |
| 357 | U64(0x694b775a694b775a), U64(0x161a121c161a121c), | |
| 358 | U64(0x0aba93e20aba93e2), U64(0xe52aa0c0e52aa0c0), | |
| 359 | U64(0x43e0223c43e0223c), U64(0x1d171b121d171b12), | |
| 360 | U64(0x0b0d090e0b0d090e), U64(0xadc78bf2adc78bf2), | |
| 361 | U64(0xb9a8b62db9a8b62d), U64(0xc8a91e14c8a91e14), | |
| 362 | U64(0x8519f1578519f157), U64(0x4c0775af4c0775af), | |
| 363 | U64(0xbbdd99eebbdd99ee), U64(0xfd607fa3fd607fa3), | |
| 364 | U64(0x9f2601f79f2601f7), U64(0xbcf5725cbcf5725c), | |
| 365 | U64(0xc53b6644c53b6644), U64(0x347efb5b347efb5b), | |
| 366 | U64(0x7629438b7629438b), U64(0xdcc623cbdcc623cb), | |
| 367 | U64(0x68fcedb668fcedb6), U64(0x63f1e4b863f1e4b8), | |
| 368 | U64(0xcadc31d7cadc31d7), U64(0x1085634210856342), | |
| 369 | U64(0x4022971340229713), U64(0x2011c6842011c684), | |
| 370 | U64(0x7d244a857d244a85), U64(0xf83dbbd2f83dbbd2), | |
| 371 | U64(0x1132f9ae1132f9ae), U64(0x6da129c76da129c7), | |
| 372 | U64(0x4b2f9e1d4b2f9e1d), U64(0xf330b2dcf330b2dc), | |
| 373 | U64(0xec52860dec52860d), U64(0xd0e3c177d0e3c177), | |
| 374 | U64(0x6c16b32b6c16b32b), U64(0x99b970a999b970a9), | |
| 375 | U64(0xfa489411fa489411), U64(0x2264e9472264e947), | |
| 376 | U64(0xc48cfca8c48cfca8), U64(0x1a3ff0a01a3ff0a0), | |
| 377 | U64(0xd82c7d56d82c7d56), U64(0xef903322ef903322), | |
| 378 | U64(0xc74e4987c74e4987), U64(0xc1d138d9c1d138d9), | |
| 379 | U64(0xfea2ca8cfea2ca8c), U64(0x360bd498360bd498), | |
| 380 | U64(0xcf81f5a6cf81f5a6), U64(0x28de7aa528de7aa5), | |
| 381 | U64(0x268eb7da268eb7da), U64(0xa4bfad3fa4bfad3f), | |
| 382 | U64(0xe49d3a2ce49d3a2c), U64(0x0d9278500d927850), | |
| 383 | U64(0x9bcc5f6a9bcc5f6a), U64(0x62467e5462467e54), | |
| 384 | U64(0xc2138df6c2138df6), U64(0xe8b8d890e8b8d890), | |
| 385 | U64(0x5ef7392e5ef7392e), U64(0xf5afc382f5afc382), | |
| 386 | U64(0xbe805d9fbe805d9f), U64(0x7c93d0697c93d069), | |
| 387 | U64(0xa92dd56fa92dd56f), U64(0xb31225cfb31225cf), | |
| 388 | U64(0x3b99acc83b99acc8), U64(0xa77d1810a77d1810), | |
| 389 | U64(0x6e639ce86e639ce8), U64(0x7bbb3bdb7bbb3bdb), | |
| 390 | U64(0x097826cd097826cd), U64(0xf418596ef418596e), | |
| 391 | U64(0x01b79aec01b79aec), U64(0xa89a4f83a89a4f83), | |
| 392 | U64(0x656e95e6656e95e6), U64(0x7ee6ffaa7ee6ffaa), | |
| 393 | U64(0x08cfbc2108cfbc21), U64(0xe6e815efe6e815ef), | |
| 394 | U64(0xd99be7bad99be7ba), U64(0xce366f4ace366f4a), | |
| 395 | U64(0xd4099fead4099fea), U64(0xd67cb029d67cb029), | |
| 396 | U64(0xafb2a431afb2a431), U64(0x31233f2a31233f2a), | |
| 397 | U64(0x3094a5c63094a5c6), U64(0xc066a235c066a235), | |
| 398 | U64(0x37bc4e7437bc4e74), U64(0xa6ca82fca6ca82fc), | |
| 399 | U64(0xb0d090e0b0d090e0), U64(0x15d8a73315d8a733), | |
| 400 | U64(0x4a9804f14a9804f1), U64(0xf7daec41f7daec41), | |
| 401 | U64(0x0e50cd7f0e50cd7f), U64(0x2ff691172ff69117), | |
| 402 | U64(0x8dd64d768dd64d76), U64(0x4db0ef434db0ef43), | |
| 403 | U64(0x544daacc544daacc), U64(0xdf0496e4df0496e4), | |
| 404 | U64(0xe3b5d19ee3b5d19e), U64(0x1b886a4c1b886a4c), | |
| 405 | U64(0xb81f2cc1b81f2cc1), U64(0x7f5165467f516546), | |
| 406 | U64(0x04ea5e9d04ea5e9d), U64(0x5d358c015d358c01), | |
| 407 | U64(0x737487fa737487fa), U64(0x2e410bfb2e410bfb), | |
| 408 | U64(0x5a1d67b35a1d67b3), U64(0x52d2db9252d2db92), | |
| 409 | U64(0x335610e9335610e9), U64(0x1347d66d1347d66d), | |
| 410 | U64(0x8c61d79a8c61d79a), U64(0x7a0ca1377a0ca137), | |
| 411 | U64(0x8e14f8598e14f859), U64(0x893c13eb893c13eb), | |
| 412 | U64(0xee27a9ceee27a9ce), U64(0x35c961b735c961b7), | |
| 413 | U64(0xede51ce1ede51ce1), U64(0x3cb1477a3cb1477a), | |
| 414 | U64(0x59dfd29c59dfd29c), U64(0x3f73f2553f73f255), | |
| 415 | U64(0x79ce141879ce1418), U64(0xbf37c773bf37c773), | |
| 416 | U64(0xeacdf753eacdf753), U64(0x5baafd5f5baafd5f), | |
| 417 | U64(0x146f3ddf146f3ddf), U64(0x86db447886db4478), | |
| 418 | U64(0x81f3afca81f3afca), U64(0x3ec468b93ec468b9), | |
| 419 | U64(0x2c3424382c342438), U64(0x5f40a3c25f40a3c2), | |
| 420 | U64(0x72c31d1672c31d16), U64(0x0c25e2bc0c25e2bc), | |
| 421 | U64(0x8b493c288b493c28), U64(0x41950dff41950dff), | |
| 422 | U64(0x7101a8397101a839), U64(0xdeb30c08deb30c08), | |
| 423 | U64(0x9ce4b4d89ce4b4d8), U64(0x90c1566490c15664), | |
| 424 | U64(0x6184cb7b6184cb7b), U64(0x70b632d570b632d5), | |
| 425 | U64(0x745c6c48745c6c48), U64(0x4257b8d04257b8d0) | |
| 426 | }; | |
| 427 | static const u8 Td4[256] = { | |
| 428 | 0x52U, 0x09U, 0x6aU, 0xd5U, 0x30U, 0x36U, 0xa5U, 0x38U, | |
| 429 | 0xbfU, 0x40U, 0xa3U, 0x9eU, 0x81U, 0xf3U, 0xd7U, 0xfbU, | |
| 430 | 0x7cU, 0xe3U, 0x39U, 0x82U, 0x9bU, 0x2fU, 0xffU, 0x87U, | |
| 431 | 0x34U, 0x8eU, 0x43U, 0x44U, 0xc4U, 0xdeU, 0xe9U, 0xcbU, | |
| 432 | 0x54U, 0x7bU, 0x94U, 0x32U, 0xa6U, 0xc2U, 0x23U, 0x3dU, | |
| 433 | 0xeeU, 0x4cU, 0x95U, 0x0bU, 0x42U, 0xfaU, 0xc3U, 0x4eU, | |
| 434 | 0x08U, 0x2eU, 0xa1U, 0x66U, 0x28U, 0xd9U, 0x24U, 0xb2U, | |
| 435 | 0x76U, 0x5bU, 0xa2U, 0x49U, 0x6dU, 0x8bU, 0xd1U, 0x25U, | |
| 436 | 0x72U, 0xf8U, 0xf6U, 0x64U, 0x86U, 0x68U, 0x98U, 0x16U, | |
| 437 | 0xd4U, 0xa4U, 0x5cU, 0xccU, 0x5dU, 0x65U, 0xb6U, 0x92U, | |
| 438 | 0x6cU, 0x70U, 0x48U, 0x50U, 0xfdU, 0xedU, 0xb9U, 0xdaU, | |
| 439 | 0x5eU, 0x15U, 0x46U, 0x57U, 0xa7U, 0x8dU, 0x9dU, 0x84U, | |
| 440 | 0x90U, 0xd8U, 0xabU, 0x00U, 0x8cU, 0xbcU, 0xd3U, 0x0aU, | |
| 441 | 0xf7U, 0xe4U, 0x58U, 0x05U, 0xb8U, 0xb3U, 0x45U, 0x06U, | |
| 442 | 0xd0U, 0x2cU, 0x1eU, 0x8fU, 0xcaU, 0x3fU, 0x0fU, 0x02U, | |
| 443 | 0xc1U, 0xafU, 0xbdU, 0x03U, 0x01U, 0x13U, 0x8aU, 0x6bU, | |
| 444 | 0x3aU, 0x91U, 0x11U, 0x41U, 0x4fU, 0x67U, 0xdcU, 0xeaU, | |
| 445 | 0x97U, 0xf2U, 0xcfU, 0xceU, 0xf0U, 0xb4U, 0xe6U, 0x73U, | |
| 446 | 0x96U, 0xacU, 0x74U, 0x22U, 0xe7U, 0xadU, 0x35U, 0x85U, | |
| 447 | 0xe2U, 0xf9U, 0x37U, 0xe8U, 0x1cU, 0x75U, 0xdfU, 0x6eU, | |
| 448 | 0x47U, 0xf1U, 0x1aU, 0x71U, 0x1dU, 0x29U, 0xc5U, 0x89U, | |
| 449 | 0x6fU, 0xb7U, 0x62U, 0x0eU, 0xaaU, 0x18U, 0xbeU, 0x1bU, | |
| 450 | 0xfcU, 0x56U, 0x3eU, 0x4bU, 0xc6U, 0xd2U, 0x79U, 0x20U, | |
| 451 | 0x9aU, 0xdbU, 0xc0U, 0xfeU, 0x78U, 0xcdU, 0x5aU, 0xf4U, | |
| 452 | 0x1fU, 0xddU, 0xa8U, 0x33U, 0x88U, 0x07U, 0xc7U, 0x31U, | |
| 453 | 0xb1U, 0x12U, 0x10U, 0x59U, 0x27U, 0x80U, 0xecU, 0x5fU, | |
| 454 | 0x60U, 0x51U, 0x7fU, 0xa9U, 0x19U, 0xb5U, 0x4aU, 0x0dU, | |
| 455 | 0x2dU, 0xe5U, 0x7aU, 0x9fU, 0x93U, 0xc9U, 0x9cU, 0xefU, | |
| 456 | 0xa0U, 0xe0U, 0x3bU, 0x4dU, 0xaeU, 0x2aU, 0xf5U, 0xb0U, | |
| 457 | 0xc8U, 0xebU, 0xbbU, 0x3cU, 0x83U, 0x53U, 0x99U, 0x61U, | |
| 458 | 0x17U, 0x2bU, 0x04U, 0x7eU, 0xbaU, 0x77U, 0xd6U, 0x26U, | |
| 459 | 0xe1U, 0x69U, 0x14U, 0x63U, 0x55U, 0x21U, 0x0cU, 0x7dU | |
| 460 | }; | |
| 461 | ||
| 462 | static const u32 rcon[] = { | |
| 463 | 0x00000001U, 0x00000002U, 0x00000004U, 0x00000008U, | |
| 464 | 0x00000010U, 0x00000020U, 0x00000040U, 0x00000080U, | |
| 465 | 0x0000001bU, 0x00000036U, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ | |
| 466 | }; | |
| 467 | ||
| 468 | /** | |
| 469 | * Expand the cipher key into the encryption key schedule. | |
| 470 | */ | |
| 471 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits, | |
| 66186aee MC |
472 | AES_KEY *key) |
| 473 | { | |
| 9c62bca1 | 474 | |
| 66186aee MC |
475 | u32 *rk; |
| 476 | int i = 0; | |
| 477 | u32 temp; | |
| 9c62bca1 | 478 | |
| 66186aee MC |
479 | if (!userKey || !key) |
| 480 | return -1; | |
| 481 | if (bits != 128 && bits != 192 && bits != 256) | |
| 482 | return -2; | |
| 9c62bca1 | 483 | |
| 66186aee | 484 | rk = key->rd_key; |
| 9c62bca1 | 485 | |
| 66186aee MC |
486 | if (bits==128) |
| 487 | key->rounds = 10; | |
| 488 | else if (bits==192) | |
| 489 | key->rounds = 12; | |
| 490 | else | |
| 491 | key->rounds = 14; | |
| 9c62bca1 | 492 | |
| 66186aee MC |
493 | rk[0] = GETU32(userKey ); |
| 494 | rk[1] = GETU32(userKey + 4); | |
| 495 | rk[2] = GETU32(userKey + 8); | |
| 496 | rk[3] = GETU32(userKey + 12); | |
| 497 | if (bits == 128) { | |
| 498 | while (1) { | |
| 499 | temp = rk[3]; | |
| 500 | rk[4] = rk[0] ^ | |
| 8b37e5c1 EK |
501 | ((u32)Te4[(temp >> 8) & 0xff] ) ^ |
| 502 | ((u32)Te4[(temp >> 16) & 0xff] << 8) ^ | |
| 503 | ((u32)Te4[(temp >> 24) ] << 16) ^ | |
| 504 | ((u32)Te4[(temp ) & 0xff] << 24) ^ | |
| 66186aee MC |
505 | rcon[i]; |
| 506 | rk[5] = rk[1] ^ rk[4]; | |
| 507 | rk[6] = rk[2] ^ rk[5]; | |
| 508 | rk[7] = rk[3] ^ rk[6]; | |
| 509 | if (++i == 10) { | |
| 510 | return 0; | |
| 511 | } | |
| 512 | rk += 4; | |
| 513 | } | |
| 514 | } | |
| 515 | rk[4] = GETU32(userKey + 16); | |
| 516 | rk[5] = GETU32(userKey + 20); | |
| 517 | if (bits == 192) { | |
| 518 | while (1) { | |
| 519 | temp = rk[ 5]; | |
| 520 | rk[ 6] = rk[ 0] ^ | |
| 8b37e5c1 EK |
521 | ((u32)Te4[(temp >> 8) & 0xff] ) ^ |
| 522 | ((u32)Te4[(temp >> 16) & 0xff] << 8) ^ | |
| 523 | ((u32)Te4[(temp >> 24) ] << 16) ^ | |
| 524 | ((u32)Te4[(temp ) & 0xff] << 24) ^ | |
| 66186aee MC |
525 | rcon[i]; |
| 526 | rk[ 7] = rk[ 1] ^ rk[ 6]; | |
| 527 | rk[ 8] = rk[ 2] ^ rk[ 7]; | |
| 528 | rk[ 9] = rk[ 3] ^ rk[ 8]; | |
| 529 | if (++i == 8) { | |
| 530 | return 0; | |
| 531 | } | |
| 532 | rk[10] = rk[ 4] ^ rk[ 9]; | |
| 533 | rk[11] = rk[ 5] ^ rk[10]; | |
| 534 | rk += 6; | |
| 535 | } | |
| 536 | } | |
| 537 | rk[6] = GETU32(userKey + 24); | |
| 538 | rk[7] = GETU32(userKey + 28); | |
| 539 | if (bits == 256) { | |
| 540 | while (1) { | |
| 541 | temp = rk[ 7]; | |
| 542 | rk[ 8] = rk[ 0] ^ | |
| 8b37e5c1 EK |
543 | ((u32)Te4[(temp >> 8) & 0xff] ) ^ |
| 544 | ((u32)Te4[(temp >> 16) & 0xff] << 8) ^ | |
| 545 | ((u32)Te4[(temp >> 24) ] << 16) ^ | |
| 546 | ((u32)Te4[(temp ) & 0xff] << 24) ^ | |
| 66186aee MC |
547 | rcon[i]; |
| 548 | rk[ 9] = rk[ 1] ^ rk[ 8]; | |
| 549 | rk[10] = rk[ 2] ^ rk[ 9]; | |
| 550 | rk[11] = rk[ 3] ^ rk[10]; | |
| 551 | if (++i == 7) { | |
| 552 | return 0; | |
| 553 | } | |
| 554 | temp = rk[11]; | |
| 555 | rk[12] = rk[ 4] ^ | |
| 8b37e5c1 EK |
556 | ((u32)Te4[(temp ) & 0xff] ) ^ |
| 557 | ((u32)Te4[(temp >> 8) & 0xff] << 8) ^ | |
| 558 | ((u32)Te4[(temp >> 16) & 0xff] << 16) ^ | |
| 559 | ((u32)Te4[(temp >> 24) ] << 24); | |
| 66186aee MC |
560 | rk[13] = rk[ 5] ^ rk[12]; |
| 561 | rk[14] = rk[ 6] ^ rk[13]; | |
| 562 | rk[15] = rk[ 7] ^ rk[14]; | |
| 9c62bca1 | 563 | |
| 66186aee MC |
564 | rk += 8; |
| 565 | } | |
| 566 | } | |
| 567 | return 0; | |
| 9c62bca1 AP |
568 | } |
| 569 | ||
| 570 | /** | |
| 571 | * Expand the cipher key into the decryption key schedule. | |
| 572 | */ | |
| 573 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits, | |
| 66186aee MC |
574 | AES_KEY *key) |
| 575 | { | |
| 9c62bca1 | 576 | |
| 66186aee MC |
577 | u32 *rk; |
| 578 | int i, j, status; | |
| 579 | u32 temp; | |
| 9c62bca1 | 580 | |
| 66186aee MC |
581 | /* first, start with an encryption schedule */ |
| 582 | status = AES_set_encrypt_key(userKey, bits, key); | |
| 583 | if (status < 0) | |
| 584 | return status; | |
| 9c62bca1 | 585 | |
| 66186aee | 586 | rk = key->rd_key; |
| 9c62bca1 | 587 | |
| 66186aee MC |
588 | /* invert the order of the round keys: */ |
| 589 | for (i = 0, j = 4*(key->rounds); i < j; i += 4, j -= 4) { | |
| 590 | temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp; | |
| 591 | temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp; | |
| 592 | temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp; | |
| 593 | temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp; | |
| 594 | } | |
| 595 | /* apply the inverse MixColumn transform to all round keys but the first and the last: */ | |
| 596 | for (i = 1; i < (key->rounds); i++) { | |
| 597 | rk += 4; | |
| 8cebec98 | 598 | #if 1 |
| 66186aee MC |
599 | for (j = 0; j < 4; j++) { |
| 600 | u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m; | |
| 8cebec98 | 601 | |
| 66186aee MC |
602 | tp1 = rk[j]; |
| 603 | m = tp1 & 0x80808080; | |
| 604 | tp2 = ((tp1 & 0x7f7f7f7f) << 1) ^ | |
| 605 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 606 | m = tp2 & 0x80808080; | |
| 607 | tp4 = ((tp2 & 0x7f7f7f7f) << 1) ^ | |
| 608 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 609 | m = tp4 & 0x80808080; | |
| 610 | tp8 = ((tp4 & 0x7f7f7f7f) << 1) ^ | |
| 611 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 612 | tp9 = tp8 ^ tp1; | |
| 613 | tpb = tp9 ^ tp2; | |
| 614 | tpd = tp9 ^ tp4; | |
| 615 | tpe = tp8 ^ tp4 ^ tp2; | |
| 8cebec98 | 616 | #if defined(ROTATE) |
| 66186aee MC |
617 | rk[j] = tpe ^ ROTATE(tpd,16) ^ |
| 618 | ROTATE(tp9,8) ^ ROTATE(tpb,24); | |
| 8cebec98 | 619 | #else |
| 66186aee MC |
620 | rk[j] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ |
| 621 | (tp9 >> 24) ^ (tp9 << 8) ^ | |
| 622 | (tpb >> 8) ^ (tpb << 24); | |
| 8cebec98 | 623 | #endif |
| 66186aee | 624 | } |
| 8cebec98 | 625 | #else |
| 66186aee MC |
626 | rk[0] = |
| 627 | Td0[Te2[(rk[0] ) & 0xff] & 0xff] ^ | |
| 628 | Td1[Te2[(rk[0] >> 8) & 0xff] & 0xff] ^ | |
| 629 | Td2[Te2[(rk[0] >> 16) & 0xff] & 0xff] ^ | |
| 630 | Td3[Te2[(rk[0] >> 24) ] & 0xff]; | |
| 631 | rk[1] = | |
| 632 | Td0[Te2[(rk[1] ) & 0xff] & 0xff] ^ | |
| 633 | Td1[Te2[(rk[1] >> 8) & 0xff] & 0xff] ^ | |
| 634 | Td2[Te2[(rk[1] >> 16) & 0xff] & 0xff] ^ | |
| 635 | Td3[Te2[(rk[1] >> 24) ] & 0xff]; | |
| 636 | rk[2] = | |
| 637 | Td0[Te2[(rk[2] ) & 0xff] & 0xff] ^ | |
| 638 | Td1[Te2[(rk[2] >> 8) & 0xff] & 0xff] ^ | |
| 639 | Td2[Te2[(rk[2] >> 16) & 0xff] & 0xff] ^ | |
| 640 | Td3[Te2[(rk[2] >> 24) ] & 0xff]; | |
| 641 | rk[3] = | |
| 642 | Td0[Te2[(rk[3] ) & 0xff] & 0xff] ^ | |
| 643 | Td1[Te2[(rk[3] >> 8) & 0xff] & 0xff] ^ | |
| 644 | Td2[Te2[(rk[3] >> 16) & 0xff] & 0xff] ^ | |
| 645 | Td3[Te2[(rk[3] >> 24) ] & 0xff]; | |
| 8cebec98 | 646 | #endif |
| 66186aee MC |
647 | } |
| 648 | return 0; | |
| 9c62bca1 AP |
649 | } |
| 650 | ||
| 651 | /* | |
| 652 | * Encrypt a single block | |
| 653 | * in and out can overlap | |
| 654 | */ | |
| 655 | void AES_encrypt(const unsigned char *in, unsigned char *out, | |
| 66186aee MC |
656 | const AES_KEY *key) |
| 657 | { | |
| 9c62bca1 | 658 | |
| 66186aee MC |
659 | const u32 *rk; |
| 660 | u32 s0, s1, s2, s3, t[4]; | |
| 661 | int r; | |
| 9c62bca1 | 662 | |
| 66186aee MC |
663 | assert(in && out && key); |
| 664 | rk = key->rd_key; | |
| 9c62bca1 | 665 | |
| 66186aee MC |
666 | /* |
| 667 | * map byte array block to cipher state | |
| 668 | * and add initial round key: | |
| 669 | */ | |
| 670 | s0 = GETU32(in ) ^ rk[0]; | |
| 671 | s1 = GETU32(in + 4) ^ rk[1]; | |
| 672 | s2 = GETU32(in + 8) ^ rk[2]; | |
| 673 | s3 = GETU32(in + 12) ^ rk[3]; | |
| 9c62bca1 | 674 | |
| dff2922a | 675 | #if defined(AES_COMPACT_IN_OUTER_ROUNDS) |
| 66186aee | 676 | prefetch256(Te4); |
| dff2922a | 677 | |
| 8b37e5c1 EK |
678 | t[0] = (u32)Te4[(s0 ) & 0xff] ^ |
| 679 | (u32)Te4[(s1 >> 8) & 0xff] << 8 ^ | |
| 680 | (u32)Te4[(s2 >> 16) & 0xff] << 16 ^ | |
| 681 | (u32)Te4[(s3 >> 24) ] << 24; | |
| 682 | t[1] = (u32)Te4[(s1 ) & 0xff] ^ | |
| 683 | (u32)Te4[(s2 >> 8) & 0xff] << 8 ^ | |
| 684 | (u32)Te4[(s3 >> 16) & 0xff] << 16 ^ | |
| 685 | (u32)Te4[(s0 >> 24) ] << 24; | |
| 686 | t[2] = (u32)Te4[(s2 ) & 0xff] ^ | |
| 687 | (u32)Te4[(s3 >> 8) & 0xff] << 8 ^ | |
| 688 | (u32)Te4[(s0 >> 16) & 0xff] << 16 ^ | |
| 689 | (u32)Te4[(s1 >> 24) ] << 24; | |
| 690 | t[3] = (u32)Te4[(s3 ) & 0xff] ^ | |
| 691 | (u32)Te4[(s0 >> 8) & 0xff] << 8 ^ | |
| 692 | (u32)Te4[(s1 >> 16) & 0xff] << 16 ^ | |
| 693 | (u32)Te4[(s2 >> 24) ] << 24; | |
| dff2922a | 694 | |
| 66186aee MC |
695 | /* now do the linear transform using words */ |
| 696 | { int i; | |
| 697 | u32 r0, r1, r2; | |
| dff2922a | 698 | |
| 66186aee MC |
699 | for (i = 0; i < 4; i++) { |
| 700 | r0 = t[i]; | |
| 701 | r1 = r0 & 0x80808080; | |
| 702 | r2 = ((r0 & 0x7f7f7f7f) << 1) ^ | |
| 703 | ((r1 - (r1 >> 7)) & 0x1b1b1b1b); | |
| dff2922a | 704 | #if defined(ROTATE) |
| 66186aee MC |
705 | t[i] = r2 ^ ROTATE(r2,24) ^ ROTATE(r0,24) ^ |
| 706 | ROTATE(r0,16) ^ ROTATE(r0,8); | |
| dff2922a | 707 | #else |
| 66186aee MC |
708 | t[i] = r2 ^ ((r2 ^ r0) << 24) ^ ((r2 ^ r0) >> 8) ^ |
| 709 | (r0 << 16) ^ (r0 >> 16) ^ | |
| 710 | (r0 << 8) ^ (r0 >> 24); | |
| dff2922a | 711 | #endif |
| 66186aee MC |
712 | t[i] ^= rk[4+i]; |
| 713 | } | |
| 714 | } | |
| dff2922a | 715 | #else |
| 66186aee MC |
716 | t[0] = Te0[(s0 ) & 0xff] ^ |
| 717 | Te1[(s1 >> 8) & 0xff] ^ | |
| 718 | Te2[(s2 >> 16) & 0xff] ^ | |
| 719 | Te3[(s3 >> 24) ] ^ | |
| 720 | rk[4]; | |
| 721 | t[1] = Te0[(s1 ) & 0xff] ^ | |
| 722 | Te1[(s2 >> 8) & 0xff] ^ | |
| 723 | Te2[(s3 >> 16) & 0xff] ^ | |
| 724 | Te3[(s0 >> 24) ] ^ | |
| 725 | rk[5]; | |
| 726 | t[2] = Te0[(s2 ) & 0xff] ^ | |
| 727 | Te1[(s3 >> 8) & 0xff] ^ | |
| 728 | Te2[(s0 >> 16) & 0xff] ^ | |
| 729 | Te3[(s1 >> 24) ] ^ | |
| 730 | rk[6]; | |
| 731 | t[3] = Te0[(s3 ) & 0xff] ^ | |
| 732 | Te1[(s0 >> 8) & 0xff] ^ | |
| 733 | Te2[(s1 >> 16) & 0xff] ^ | |
| 734 | Te3[(s2 >> 24) ] ^ | |
| 735 | rk[7]; | |
| dff2922a | 736 | #endif |
| 66186aee | 737 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 9c62bca1 AP |
738 | |
| 739 | /* | |
| 740 | * Nr - 2 full rounds: | |
| 741 | */ | |
| dff2922a AP |
742 | for (rk+=8,r=key->rounds-2; r>0; rk+=4,r--) { |
| 743 | #if defined(AES_COMPACT_IN_INNER_ROUNDS) | |
| 8b37e5c1 EK |
744 | t[0] = (u32)Te4[(s0 ) & 0xff] ^ |
| 745 | (u32)Te4[(s1 >> 8) & 0xff] << 8 ^ | |
| 746 | (u32)Te4[(s2 >> 16) & 0xff] << 16 ^ | |
| 747 | (u32)Te4[(s3 >> 24) ] << 24; | |
| 748 | t[1] = (u32)Te4[(s1 ) & 0xff] ^ | |
| 749 | (u32)Te4[(s2 >> 8) & 0xff] << 8 ^ | |
| 750 | (u32)Te4[(s3 >> 16) & 0xff] << 16 ^ | |
| 751 | (u32)Te4[(s0 >> 24) ] << 24; | |
| 752 | t[2] = (u32)Te4[(s2 ) & 0xff] ^ | |
| 753 | (u32)Te4[(s3 >> 8) & 0xff] << 8 ^ | |
| 754 | (u32)Te4[(s0 >> 16) & 0xff] << 16 ^ | |
| 755 | (u32)Te4[(s1 >> 24) ] << 24; | |
| 756 | t[3] = (u32)Te4[(s3 ) & 0xff] ^ | |
| 757 | (u32)Te4[(s0 >> 8) & 0xff] << 8 ^ | |
| 758 | (u32)Te4[(s1 >> 16) & 0xff] << 16 ^ | |
| 759 | (u32)Te4[(s2 >> 24) ] << 24; | |
| dff2922a | 760 | |
| 66186aee MC |
761 | /* now do the linear transform using words */ |
| 762 | { | |
| 763 | int i; | |
| 764 | u32 r0, r1, r2; | |
| dff2922a | 765 | |
| 66186aee MC |
766 | for (i = 0; i < 4; i++) { |
| 767 | r0 = t[i]; | |
| 768 | r1 = r0 & 0x80808080; | |
| 769 | r2 = ((r0 & 0x7f7f7f7f) << 1) ^ | |
| 770 | ((r1 - (r1 >> 7)) & 0x1b1b1b1b); | |
| dff2922a | 771 | #if defined(ROTATE) |
| 66186aee MC |
772 | t[i] = r2 ^ ROTATE(r2,24) ^ ROTATE(r0,24) ^ |
| 773 | ROTATE(r0,16) ^ ROTATE(r0,8); | |
| dff2922a | 774 | #else |
| 66186aee MC |
775 | t[i] = r2 ^ ((r2 ^ r0) << 24) ^ ((r2 ^ r0) >> 8) ^ |
| 776 | (r0 << 16) ^ (r0 >> 16) ^ | |
| 777 | (r0 << 8) ^ (r0 >> 24); | |
| dff2922a | 778 | #endif |
| 66186aee MC |
779 | t[i] ^= rk[i]; |
| 780 | } | |
| 781 | } | |
| dff2922a | 782 | #else |
| 66186aee MC |
783 | t[0] = Te0[(s0 ) & 0xff] ^ |
| 784 | Te1[(s1 >> 8) & 0xff] ^ | |
| 785 | Te2[(s2 >> 16) & 0xff] ^ | |
| 786 | Te3[(s3 >> 24) ] ^ | |
| 787 | rk[0]; | |
| 788 | t[1] = Te0[(s1 ) & 0xff] ^ | |
| 789 | Te1[(s2 >> 8) & 0xff] ^ | |
| 790 | Te2[(s3 >> 16) & 0xff] ^ | |
| 791 | Te3[(s0 >> 24) ] ^ | |
| 792 | rk[1]; | |
| 793 | t[2] = Te0[(s2 ) & 0xff] ^ | |
| 794 | Te1[(s3 >> 8) & 0xff] ^ | |
| 795 | Te2[(s0 >> 16) & 0xff] ^ | |
| 796 | Te3[(s1 >> 24) ] ^ | |
| 797 | rk[2]; | |
| 798 | t[3] = Te0[(s3 ) & 0xff] ^ | |
| 799 | Te1[(s0 >> 8) & 0xff] ^ | |
| 800 | Te2[(s1 >> 16) & 0xff] ^ | |
| 801 | Te3[(s2 >> 24) ] ^ | |
| 802 | rk[3]; | |
| dff2922a | 803 | #endif |
| 66186aee | 804 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 9c62bca1 AP |
805 | } |
| 806 | /* | |
| 66186aee MC |
807 | * apply last round and |
| 808 | * map cipher state to byte array block: | |
| 809 | */ | |
| dff2922a | 810 | #if defined(AES_COMPACT_IN_OUTER_ROUNDS) |
| 66186aee | 811 | prefetch256(Te4); |
| dff2922a | 812 | |
| 66186aee | 813 | *(u32*)(out+0) = |
| 8b37e5c1 EK |
814 | (u32)Te4[(s0 ) & 0xff] ^ |
| 815 | (u32)Te4[(s1 >> 8) & 0xff] << 8 ^ | |
| 816 | (u32)Te4[(s2 >> 16) & 0xff] << 16 ^ | |
| 817 | (u32)Te4[(s3 >> 24) ] << 24 ^ | |
| 66186aee MC |
818 | rk[0]; |
| 819 | *(u32*)(out+4) = | |
| 8b37e5c1 EK |
820 | (u32)Te4[(s1 ) & 0xff] ^ |
| 821 | (u32)Te4[(s2 >> 8) & 0xff] << 8 ^ | |
| 822 | (u32)Te4[(s3 >> 16) & 0xff] << 16 ^ | |
| 823 | (u32)Te4[(s0 >> 24) ] << 24 ^ | |
| 66186aee MC |
824 | rk[1]; |
| 825 | *(u32*)(out+8) = | |
| 8b37e5c1 EK |
826 | (u32)Te4[(s2 ) & 0xff] ^ |
| 827 | (u32)Te4[(s3 >> 8) & 0xff] << 8 ^ | |
| 828 | (u32)Te4[(s0 >> 16) & 0xff] << 16 ^ | |
| 829 | (u32)Te4[(s1 >> 24) ] << 24 ^ | |
| 66186aee MC |
830 | rk[2]; |
| 831 | *(u32*)(out+12) = | |
| 8b37e5c1 EK |
832 | (u32)Te4[(s3 ) & 0xff] ^ |
| 833 | (u32)Te4[(s0 >> 8) & 0xff] << 8 ^ | |
| 834 | (u32)Te4[(s1 >> 16) & 0xff] << 16 ^ | |
| 835 | (u32)Te4[(s2 >> 24) ] << 24 ^ | |
| 66186aee | 836 | rk[3]; |
| dff2922a | 837 | #else |
| 66186aee MC |
838 | *(u32*)(out+0) = |
| 839 | (Te2[(s0 ) & 0xff] & 0x000000ffU) ^ | |
| 840 | (Te3[(s1 >> 8) & 0xff] & 0x0000ff00U) ^ | |
| 841 | (Te0[(s2 >> 16) & 0xff] & 0x00ff0000U) ^ | |
| 842 | (Te1[(s3 >> 24) ] & 0xff000000U) ^ | |
| 843 | rk[0]; | |
| 844 | *(u32*)(out+4) = | |
| 845 | (Te2[(s1 ) & 0xff] & 0x000000ffU) ^ | |
| 846 | (Te3[(s2 >> 8) & 0xff] & 0x0000ff00U) ^ | |
| 847 | (Te0[(s3 >> 16) & 0xff] & 0x00ff0000U) ^ | |
| 848 | (Te1[(s0 >> 24) ] & 0xff000000U) ^ | |
| 849 | rk[1]; | |
| 850 | *(u32*)(out+8) = | |
| 851 | (Te2[(s2 ) & 0xff] & 0x000000ffU) ^ | |
| 852 | (Te3[(s3 >> 8) & 0xff] & 0x0000ff00U) ^ | |
| 853 | (Te0[(s0 >> 16) & 0xff] & 0x00ff0000U) ^ | |
| 854 | (Te1[(s1 >> 24) ] & 0xff000000U) ^ | |
| 855 | rk[2]; | |
| 856 | *(u32*)(out+12) = | |
| 857 | (Te2[(s3 ) & 0xff] & 0x000000ffU) ^ | |
| 858 | (Te3[(s0 >> 8) & 0xff] & 0x0000ff00U) ^ | |
| 859 | (Te0[(s1 >> 16) & 0xff] & 0x00ff0000U) ^ | |
| 860 | (Te1[(s2 >> 24) ] & 0xff000000U) ^ | |
| 861 | rk[3]; | |
| dff2922a | 862 | #endif |
| 9c62bca1 AP |
863 | } |
| 864 | ||
| 865 | /* | |
| 866 | * Decrypt a single block | |
| 867 | * in and out can overlap | |
| 868 | */ | |
| 869 | void AES_decrypt(const unsigned char *in, unsigned char *out, | |
| 66186aee MC |
870 | const AES_KEY *key) |
| 871 | { | |
| 9c62bca1 | 872 | |
| 66186aee MC |
873 | const u32 *rk; |
| 874 | u32 s0, s1, s2, s3, t[4]; | |
| 875 | int r; | |
| 9c62bca1 | 876 | |
| 66186aee MC |
877 | assert(in && out && key); |
| 878 | rk = key->rd_key; | |
| 9c62bca1 | 879 | |
| 66186aee MC |
880 | /* |
| 881 | * map byte array block to cipher state | |
| 882 | * and add initial round key: | |
| 883 | */ | |
| 884 | s0 = GETU32(in ) ^ rk[0]; | |
| 885 | s1 = GETU32(in + 4) ^ rk[1]; | |
| 886 | s2 = GETU32(in + 8) ^ rk[2]; | |
| 887 | s3 = GETU32(in + 12) ^ rk[3]; | |
| 9c62bca1 | 888 | |
| dff2922a | 889 | #if defined(AES_COMPACT_IN_OUTER_ROUNDS) |
| 66186aee | 890 | prefetch256(Td4); |
| dff2922a | 891 | |
| 8b37e5c1 EK |
892 | t[0] = (u32)Td4[(s0 ) & 0xff] ^ |
| 893 | (u32)Td4[(s3 >> 8) & 0xff] << 8 ^ | |
| 894 | (u32)Td4[(s2 >> 16) & 0xff] << 16 ^ | |
| 895 | (u32)Td4[(s1 >> 24) ] << 24; | |
| 896 | t[1] = (u32)Td4[(s1 ) & 0xff] ^ | |
| 897 | (u32)Td4[(s0 >> 8) & 0xff] << 8 ^ | |
| 898 | (u32)Td4[(s3 >> 16) & 0xff] << 16 ^ | |
| 899 | (u32)Td4[(s2 >> 24) ] << 24; | |
| 900 | t[2] = (u32)Td4[(s2 ) & 0xff] ^ | |
| 901 | (u32)Td4[(s1 >> 8) & 0xff] << 8 ^ | |
| 902 | (u32)Td4[(s0 >> 16) & 0xff] << 16 ^ | |
| 903 | (u32)Td4[(s3 >> 24) ] << 24; | |
| 904 | t[3] = (u32)Td4[(s3 ) & 0xff] ^ | |
| 905 | (u32)Td4[(s2 >> 8) & 0xff] << 8 ^ | |
| 906 | (u32)Td4[(s1 >> 16) & 0xff] << 16 ^ | |
| 907 | (u32)Td4[(s0 >> 24) ] << 24; | |
| dff2922a | 908 | |
| 66186aee MC |
909 | /* now do the linear transform using words */ |
| 910 | { | |
| 911 | int i; | |
| 912 | u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m; | |
| dff2922a | 913 | |
| 66186aee MC |
914 | for (i = 0; i < 4; i++) { |
| 915 | tp1 = t[i]; | |
| 916 | m = tp1 & 0x80808080; | |
| 917 | tp2 = ((tp1 & 0x7f7f7f7f) << 1) ^ | |
| 918 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 919 | m = tp2 & 0x80808080; | |
| 920 | tp4 = ((tp2 & 0x7f7f7f7f) << 1) ^ | |
| 921 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 922 | m = tp4 & 0x80808080; | |
| 923 | tp8 = ((tp4 & 0x7f7f7f7f) << 1) ^ | |
| 924 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 925 | tp9 = tp8 ^ tp1; | |
| 926 | tpb = tp9 ^ tp2; | |
| 927 | tpd = tp9 ^ tp4; | |
| 928 | tpe = tp8 ^ tp4 ^ tp2; | |
| dff2922a | 929 | #if defined(ROTATE) |
| 66186aee MC |
930 | t[i] = tpe ^ ROTATE(tpd,16) ^ |
| 931 | ROTATE(tp9,8) ^ ROTATE(tpb,24); | |
| dff2922a | 932 | #else |
| 66186aee MC |
933 | t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ |
| 934 | (tp9 >> 24) ^ (tp9 << 8) ^ | |
| 935 | (tpb >> 8) ^ (tpb << 24); | |
| dff2922a | 936 | #endif |
| 66186aee MC |
937 | t[i] ^= rk[4+i]; |
| 938 | } | |
| 939 | } | |
| dff2922a | 940 | #else |
| 66186aee MC |
941 | t[0] = Td0[(s0 ) & 0xff] ^ |
| 942 | Td1[(s3 >> 8) & 0xff] ^ | |
| 943 | Td2[(s2 >> 16) & 0xff] ^ | |
| 944 | Td3[(s1 >> 24) ] ^ | |
| 945 | rk[4]; | |
| 946 | t[1] = Td0[(s1 ) & 0xff] ^ | |
| 947 | Td1[(s0 >> 8) & 0xff] ^ | |
| 948 | Td2[(s3 >> 16) & 0xff] ^ | |
| 949 | Td3[(s2 >> 24) ] ^ | |
| 950 | rk[5]; | |
| 951 | t[2] = Td0[(s2 ) & 0xff] ^ | |
| 952 | Td1[(s1 >> 8) & 0xff] ^ | |
| 953 | Td2[(s0 >> 16) & 0xff] ^ | |
| 954 | Td3[(s3 >> 24) ] ^ | |
| 955 | rk[6]; | |
| 956 | t[3] = Td0[(s3 ) & 0xff] ^ | |
| 957 | Td1[(s2 >> 8) & 0xff] ^ | |
| 958 | Td2[(s1 >> 16) & 0xff] ^ | |
| 959 | Td3[(s0 >> 24) ] ^ | |
| 960 | rk[7]; | |
| dff2922a | 961 | #endif |
| 66186aee | 962 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 9c62bca1 AP |
963 | |
| 964 | /* | |
| 965 | * Nr - 2 full rounds: | |
| 966 | */ | |
| dff2922a AP |
967 | for (rk+=8,r=key->rounds-2; r>0; rk+=4,r--) { |
| 968 | #if defined(AES_COMPACT_IN_INNER_ROUNDS) | |
| 8b37e5c1 EK |
969 | t[0] = (u32)Td4[(s0 ) & 0xff] ^ |
| 970 | (u32)Td4[(s3 >> 8) & 0xff] << 8 ^ | |
| 971 | (u32)Td4[(s2 >> 16) & 0xff] << 16 ^ | |
| 972 | (u32)Td4[(s1 >> 24) ] << 24; | |
| 973 | t[1] = (u32)Td4[(s1 ) & 0xff] ^ | |
| 974 | (u32)Td4[(s0 >> 8) & 0xff] << 8 ^ | |
| 975 | (u32)Td4[(s3 >> 16) & 0xff] << 16 ^ | |
| 976 | (u32)Td4[(s2 >> 24) ] << 24; | |
| 977 | t[2] = (u32)Td4[(s2 ) & 0xff] ^ | |
| 978 | (u32)Td4[(s1 >> 8) & 0xff] << 8 ^ | |
| 979 | (u32)Td4[(s0 >> 16) & 0xff] << 16 ^ | |
| 980 | (u32)Td4[(s3 >> 24) ] << 24; | |
| 981 | t[3] = (u32)Td4[(s3 ) & 0xff] ^ | |
| 982 | (u32)Td4[(s2 >> 8) & 0xff] << 8 ^ | |
| 983 | (u32)Td4[(s1 >> 16) & 0xff] << 16 ^ | |
| 984 | (u32)Td4[(s0 >> 24) ] << 24; | |
| dff2922a | 985 | |
| 66186aee MC |
986 | /* now do the linear transform using words */ |
| 987 | { | |
| 988 | int i; | |
| 989 | u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m; | |
| dff2922a | 990 | |
| 66186aee MC |
991 | for (i = 0; i < 4; i++) { |
| 992 | tp1 = t[i]; | |
| 993 | m = tp1 & 0x80808080; | |
| 994 | tp2 = ((tp1 & 0x7f7f7f7f) << 1) ^ | |
| 995 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 996 | m = tp2 & 0x80808080; | |
| 997 | tp4 = ((tp2 & 0x7f7f7f7f) << 1) ^ | |
| 998 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 999 | m = tp4 & 0x80808080; | |
| 1000 | tp8 = ((tp4 & 0x7f7f7f7f) << 1) ^ | |
| 1001 | ((m - (m >> 7)) & 0x1b1b1b1b); | |
| 1002 | tp9 = tp8 ^ tp1; | |
| 1003 | tpb = tp9 ^ tp2; | |
| 1004 | tpd = tp9 ^ tp4; | |
| 1005 | tpe = tp8 ^ tp4 ^ tp2; | |
| dff2922a | 1006 | #if defined(ROTATE) |
| 66186aee MC |
1007 | t[i] = tpe ^ ROTATE(tpd,16) ^ |
| 1008 | ROTATE(tp9,8) ^ ROTATE(tpb,24); | |
| dff2922a | 1009 | #else |
| 66186aee MC |
1010 | t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ |
| 1011 | (tp9 >> 24) ^ (tp9 << 8) ^ | |
| 1012 | (tpb >> 8) ^ (tpb << 24); | |
| dff2922a | 1013 | #endif |
| 66186aee MC |
1014 | t[i] ^= rk[i]; |
| 1015 | } | |
| 1016 | } | |
| dff2922a | 1017 | #else |
| 66186aee MC |
1018 | t[0] = Td0[(s0 ) & 0xff] ^ |
| 1019 | Td1[(s3 >> 8) & 0xff] ^ | |
| 1020 | Td2[(s2 >> 16) & 0xff] ^ | |
| 1021 | Td3[(s1 >> 24) ] ^ | |
| 1022 | rk[0]; | |
| 1023 | t[1] = Td0[(s1 ) & 0xff] ^ | |
| 1024 | Td1[(s0 >> 8) & 0xff] ^ | |
| 1025 | Td2[(s3 >> 16) & 0xff] ^ | |
| 1026 | Td3[(s2 >> 24) ] ^ | |
| 1027 | rk[1]; | |
| 1028 | t[2] = Td0[(s2 ) & 0xff] ^ | |
| 1029 | Td1[(s1 >> 8) & 0xff] ^ | |
| 1030 | Td2[(s0 >> 16) & 0xff] ^ | |
| 1031 | Td3[(s3 >> 24) ] ^ | |
| 1032 | rk[2]; | |
| 1033 | t[3] = Td0[(s3 ) & 0xff] ^ | |
| 1034 | Td1[(s2 >> 8) & 0xff] ^ | |
| 1035 | Td2[(s1 >> 16) & 0xff] ^ | |
| 1036 | Td3[(s0 >> 24) ] ^ | |
| 1037 | rk[3]; | |
| dff2922a | 1038 | #endif |
| 66186aee | 1039 | s0 = t[0]; s1 = t[1]; s2 = t[2]; s3 = t[3]; |
| 9c62bca1 AP |
1040 | } |
| 1041 | /* | |
| 66186aee MC |
1042 | * apply last round and |
| 1043 | * map cipher state to byte array block: | |
| 1044 | */ | |
| 1045 | prefetch256(Td4); | |
| dff2922a | 1046 | |
| 66186aee | 1047 | *(u32*)(out+0) = |
| 8b37e5c1 EK |
1048 | ((u32)Td4[(s0 ) & 0xff]) ^ |
| 1049 | ((u32)Td4[(s3 >> 8) & 0xff] << 8) ^ | |
| 1050 | ((u32)Td4[(s2 >> 16) & 0xff] << 16) ^ | |
| 1051 | ((u32)Td4[(s1 >> 24) ] << 24) ^ | |
| 66186aee MC |
1052 | rk[0]; |
| 1053 | *(u32*)(out+4) = | |
| 8b37e5c1 EK |
1054 | ((u32)Td4[(s1 ) & 0xff]) ^ |
| 1055 | ((u32)Td4[(s0 >> 8) & 0xff] << 8) ^ | |
| 1056 | ((u32)Td4[(s3 >> 16) & 0xff] << 16) ^ | |
| 1057 | ((u32)Td4[(s2 >> 24) ] << 24) ^ | |
| 66186aee MC |
1058 | rk[1]; |
| 1059 | *(u32*)(out+8) = | |
| 8b37e5c1 EK |
1060 | ((u32)Td4[(s2 ) & 0xff]) ^ |
| 1061 | ((u32)Td4[(s1 >> 8) & 0xff] << 8) ^ | |
| 1062 | ((u32)Td4[(s0 >> 16) & 0xff] << 16) ^ | |
| 1063 | ((u32)Td4[(s3 >> 24) ] << 24) ^ | |
| 66186aee MC |
1064 | rk[2]; |
| 1065 | *(u32*)(out+12) = | |
| 8b37e5c1 EK |
1066 | ((u32)Td4[(s3 ) & 0xff]) ^ |
| 1067 | ((u32)Td4[(s2 >> 8) & 0xff] << 8) ^ | |
| 1068 | ((u32)Td4[(s1 >> 16) & 0xff] << 16) ^ | |
| 1069 | ((u32)Td4[(s0 >> 24) ] << 24) ^ | |
| 66186aee | 1070 | rk[3]; |
| 9c62bca1 | 1071 | } |