aes-decrypt.c

   1 /* aes-decrypt.c
   2
   3    Decryption function for aes/rijndael block cipher.
   4
   5    Copyright (C) 2002, 2013 Niels Möller
   6
   7    This file is part of GNU Nettle.
   8
   9    GNU Nettle is free software: you can redistribute it and/or
  10    modify it under the terms of either:
  11
  12      * the GNU Lesser General Public License as published by the Free
  13        Software Foundation; either version 3 of the License, or (at your
  14        option) any later version.
  15
  16    or
  17
  18      * the GNU General Public License as published by the Free
  19        Software Foundation; either version 2 of the License, or (at your
  20        option) any later version.
  21
  22    or both in parallel, as here.
  23
  24    GNU Nettle is distributed in the hope that it will be useful,
  25    but WITHOUT ANY WARRANTY; without even the implied warranty of
  26    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27    General Public License for more details.
  28
  29    You should have received copies of the GNU General Public License and
  30    the GNU Lesser General Public License along with this program.  If
  31    not, see http://www.gnu.org/licenses/.
  32 */
  33
  34 #if HAVE_CONFIG_H
  35 # include "config.h"
  36 #endif
  37
  38 #include <assert.h>
  39
  40 #include "aes-internal.h"
  41
  42 static const struct aes_table
  43 _aes_decrypt_table =
  44   { /* isbox */
  45     {
  46       0x52,0x09,0x6a,0xd5,0x30,0x36,0xa5,0x38,
  47       0xbf,0x40,0xa3,0x9e,0x81,0xf3,0xd7,0xfb,
  48       0x7c,0xe3,0x39,0x82,0x9b,0x2f,0xff,0x87,
  49       0x34,0x8e,0x43,0x44,0xc4,0xde,0xe9,0xcb,
  50       0x54,0x7b,0x94,0x32,0xa6,0xc2,0x23,0x3d,
  51       0xee,0x4c,0x95,0x0b,0x42,0xfa,0xc3,0x4e,
  52       0x08,0x2e,0xa1,0x66,0x28,0xd9,0x24,0xb2,
  53       0x76,0x5b,0xa2,0x49,0x6d,0x8b,0xd1,0x25,
  54       0x72,0xf8,0xf6,0x64,0x86,0x68,0x98,0x16,
  55       0xd4,0xa4,0x5c,0xcc,0x5d,0x65,0xb6,0x92,
  56       0x6c,0x70,0x48,0x50,0xfd,0xed,0xb9,0xda,
  57       0x5e,0x15,0x46,0x57,0xa7,0x8d,0x9d,0x84,
  58       0x90,0xd8,0xab,0x00,0x8c,0xbc,0xd3,0x0a,
  59       0xf7,0xe4,0x58,0x05,0xb8,0xb3,0x45,0x06,
  60       0xd0,0x2c,0x1e,0x8f,0xca,0x3f,0x0f,0x02,
  61       0xc1,0xaf,0xbd,0x03,0x01,0x13,0x8a,0x6b,
  62       0x3a,0x91,0x11,0x41,0x4f,0x67,0xdc,0xea,
  63       0x97,0xf2,0xcf,0xce,0xf0,0xb4,0xe6,0x73,
  64       0x96,0xac,0x74,0x22,0xe7,0xad,0x35,0x85,
  65       0xe2,0xf9,0x37,0xe8,0x1c,0x75,0xdf,0x6e,
  66       0x47,0xf1,0x1a,0x71,0x1d,0x29,0xc5,0x89,
  67       0x6f,0xb7,0x62,0x0e,0xaa,0x18,0xbe,0x1b,
  68       0xfc,0x56,0x3e,0x4b,0xc6,0xd2,0x79,0x20,
  69       0x9a,0xdb,0xc0,0xfe,0x78,0xcd,0x5a,0xf4,
  70       0x1f,0xdd,0xa8,0x33,0x88,0x07,0xc7,0x31,
  71       0xb1,0x12,0x10,0x59,0x27,0x80,0xec,0x5f,
  72       0x60,0x51,0x7f,0xa9,0x19,0xb5,0x4a,0x0d,
  73       0x2d,0xe5,0x7a,0x9f,0x93,0xc9,0x9c,0xef,
  74       0xa0,0xe0,0x3b,0x4d,0xae,0x2a,0xf5,0xb0,
  75       0xc8,0xeb,0xbb,0x3c,0x83,0x53,0x99,0x61,
  76       0x17,0x2b,0x04,0x7e,0xba,0x77,0xd6,0x26,
  77       0xe1,0x69,0x14,0x63,0x55,0x21,0x0c,0x7d,
  78     },
  79     { /* itable */
  80       {
  81         0x50a7f451,0x5365417e,0xc3a4171a,0x965e273a,
  82         0xcb6bab3b,0xf1459d1f,0xab58faac,0x9303e34b,
  83         0x55fa3020,0xf66d76ad,0x9176cc88,0x254c02f5,
  84         0xfcd7e54f,0xd7cb2ac5,0x80443526,0x8fa362b5,
  85         0x495ab1de,0x671bba25,0x980eea45,0xe1c0fe5d,
  86         0x02752fc3,0x12f04c81,0xa397468d,0xc6f9d36b,
  87         0xe75f8f03,0x959c9215,0xeb7a6dbf,0xda595295,
  88         0x2d83bed4,0xd3217458,0x2969e049,0x44c8c98e,
  89         0x6a89c275,0x78798ef4,0x6b3e5899,0xdd71b927,
  90         0xb64fe1be,0x17ad88f0,0x66ac20c9,0xb43ace7d,
  91         0x184adf63,0x82311ae5,0x60335197,0x457f5362,
  92         0xe07764b1,0x84ae6bbb,0x1ca081fe,0x942b08f9,
  93         0x58684870,0x19fd458f,0x876cde94,0xb7f87b52,
  94         0x23d373ab,0xe2024b72,0x578f1fe3,0x2aab5566,
  95         0x0728ebb2,0x03c2b52f,0x9a7bc586,0xa50837d3,
  96         0xf2872830,0xb2a5bf23,0xba6a0302,0x5c8216ed,
  97         0x2b1ccf8a,0x92b479a7,0xf0f207f3,0xa1e2694e,
  98         0xcdf4da65,0xd5be0506,0x1f6234d1,0x8afea6c4,
  99         0x9d532e34,0xa055f3a2,0x32e18a05,0x75ebf6a4,
 100         0x39ec830b,0xaaef6040,0x069f715e,0x51106ebd,
 101         0xf98a213e,0x3d06dd96,0xae053edd,0x46bde64d,
 102         0xb58d5491,0x055dc471,0x6fd40604,0xff155060,
 103         0x24fb9819,0x97e9bdd6,0xcc434089,0x779ed967,
 104         0xbd42e8b0,0x888b8907,0x385b19e7,0xdbeec879,
 105         0x470a7ca1,0xe90f427c,0xc91e84f8,0x00000000,
 106         0x83868009,0x48ed2b32,0xac70111e,0x4e725a6c,
 107         0xfbff0efd,0x5638850f,0x1ed5ae3d,0x27392d36,
 108         0x64d90f0a,0x21a65c68,0xd1545b9b,0x3a2e3624,
 109         0xb1670a0c,0x0fe75793,0xd296eeb4,0x9e919b1b,
 110         0x4fc5c080,0xa220dc61,0x694b775a,0x161a121c,
 111         0x0aba93e2,0xe52aa0c0,0x43e0223c,0x1d171b12,
 112         0x0b0d090e,0xadc78bf2,0xb9a8b62d,0xc8a91e14,
 113         0x8519f157,0x4c0775af,0xbbdd99ee,0xfd607fa3,
 114         0x9f2601f7,0xbcf5725c,0xc53b6644,0x347efb5b,
 115         0x7629438b,0xdcc623cb,0x68fcedb6,0x63f1e4b8,
 116         0xcadc31d7,0x10856342,0x40229713,0x2011c684,
 117         0x7d244a85,0xf83dbbd2,0x1132f9ae,0x6da129c7,
 118         0x4b2f9e1d,0xf330b2dc,0xec52860d,0xd0e3c177,
 119         0x6c16b32b,0x99b970a9,0xfa489411,0x2264e947,
 120         0xc48cfca8,0x1a3ff0a0,0xd82c7d56,0xef903322,
 121         0xc74e4987,0xc1d138d9,0xfea2ca8c,0x360bd498,
 122         0xcf81f5a6,0x28de7aa5,0x268eb7da,0xa4bfad3f,
 123         0xe49d3a2c,0x0d927850,0x9bcc5f6a,0x62467e54,
 124         0xc2138df6,0xe8b8d890,0x5ef7392e,0xf5afc382,
 125         0xbe805d9f,0x7c93d069,0xa92dd56f,0xb31225cf,
 126         0x3b99acc8,0xa77d1810,0x6e639ce8,0x7bbb3bdb,
 127         0x097826cd,0xf418596e,0x01b79aec,0xa89a4f83,
 128         0x656e95e6,0x7ee6ffaa,0x08cfbc21,0xe6e815ef,
 129         0xd99be7ba,0xce366f4a,0xd4099fea,0xd67cb029,
 130         0xafb2a431,0x31233f2a,0x3094a5c6,0xc066a235,
 131         0x37bc4e74,0xa6ca82fc,0xb0d090e0,0x15d8a733,
 132         0x4a9804f1,0xf7daec41,0x0e50cd7f,0x2ff69117,
 133         0x8dd64d76,0x4db0ef43,0x544daacc,0xdf0496e4,
 134         0xe3b5d19e,0x1b886a4c,0xb81f2cc1,0x7f516546,
 135         0x04ea5e9d,0x5d358c01,0x737487fa,0x2e410bfb,
 136         0x5a1d67b3,0x52d2db92,0x335610e9,0x1347d66d,
 137         0x8c61d79a,0x7a0ca137,0x8e14f859,0x893c13eb,
 138         0xee27a9ce,0x35c961b7,0xede51ce1,0x3cb1477a,
 139         0x59dfd29c,0x3f73f255,0x79ce1418,0xbf37c773,
 140         0xeacdf753,0x5baafd5f,0x146f3ddf,0x86db4478,
 141         0x81f3afca,0x3ec468b9,0x2c342438,0x5f40a3c2,
 142         0x72c31d16,0x0c25e2bc,0x8b493c28,0x41950dff,
 143         0x7101a839,0xdeb30c08,0x9ce4b4d8,0x90c15664,
 144         0x6184cb7b,0x70b632d5,0x745c6c48,0x4257b8d0,
 145       },
 146 #if !AES_SMALL
 147       { /* Before: itable[1] */
 148         0xa7f45150,0x65417e53,0xa4171ac3,0x5e273a96,
 149         0x6bab3bcb,0x459d1ff1,0x58faacab,0x03e34b93,
 150         0xfa302055,0x6d76adf6,0x76cc8891,0x4c02f525,
 151         0xd7e54ffc,0xcb2ac5d7,0x44352680,0xa362b58f,
 152         0x5ab1de49,0x1bba2567,0x0eea4598,0xc0fe5de1,
 153         0x752fc302,0xf04c8112,0x97468da3,0xf9d36bc6,
 154         0x5f8f03e7,0x9c921595,0x7a6dbfeb,0x595295da,
 155         0x83bed42d,0x217458d3,0x69e04929,0xc8c98e44,
 156         0x89c2756a,0x798ef478,0x3e58996b,0x71b927dd,
 157         0x4fe1beb6,0xad88f017,0xac20c966,0x3ace7db4,
 158         0x4adf6318,0x311ae582,0x33519760,0x7f536245,
 159         0x7764b1e0,0xae6bbb84,0xa081fe1c,0x2b08f994,
 160         0x68487058,0xfd458f19,0x6cde9487,0xf87b52b7,
 161         0xd373ab23,0x024b72e2,0x8f1fe357,0xab55662a,
 162         0x28ebb207,0xc2b52f03,0x7bc5869a,0x0837d3a5,
 163         0x872830f2,0xa5bf23b2,0x6a0302ba,0x8216ed5c,
 164         0x1ccf8a2b,0xb479a792,0xf207f3f0,0xe2694ea1,
 165         0xf4da65cd,0xbe0506d5,0x6234d11f,0xfea6c48a,
 166         0x532e349d,0x55f3a2a0,0xe18a0532,0xebf6a475,
 167         0xec830b39,0xef6040aa,0x9f715e06,0x106ebd51,
 168         0x8a213ef9,0x06dd963d,0x053eddae,0xbde64d46,
 169         0x8d5491b5,0x5dc47105,0xd406046f,0x155060ff,
 170         0xfb981924,0xe9bdd697,0x434089cc,0x9ed96777,
 171         0x42e8b0bd,0x8b890788,0x5b19e738,0xeec879db,
 172         0x0a7ca147,0x0f427ce9,0x1e84f8c9,0x00000000,
 173         0x86800983,0xed2b3248,0x70111eac,0x725a6c4e,
 174         0xff0efdfb,0x38850f56,0xd5ae3d1e,0x392d3627,
 175         0xd90f0a64,0xa65c6821,0x545b9bd1,0x2e36243a,
 176         0x670a0cb1,0xe757930f,0x96eeb4d2,0x919b1b9e,
 177         0xc5c0804f,0x20dc61a2,0x4b775a69,0x1a121c16,
 178         0xba93e20a,0x2aa0c0e5,0xe0223c43,0x171b121d,
 179         0x0d090e0b,0xc78bf2ad,0xa8b62db9,0xa91e14c8,
 180         0x19f15785,0x0775af4c,0xdd99eebb,0x607fa3fd,
 181         0x2601f79f,0xf5725cbc,0x3b6644c5,0x7efb5b34,
 182         0x29438b76,0xc623cbdc,0xfcedb668,0xf1e4b863,
 183         0xdc31d7ca,0x85634210,0x22971340,0x11c68420,
 184         0x244a857d,0x3dbbd2f8,0x32f9ae11,0xa129c76d,
 185         0x2f9e1d4b,0x30b2dcf3,0x52860dec,0xe3c177d0,
 186         0x16b32b6c,0xb970a999,0x489411fa,0x64e94722,
 187         0x8cfca8c4,0x3ff0a01a,0x2c7d56d8,0x903322ef,
 188         0x4e4987c7,0xd138d9c1,0xa2ca8cfe,0x0bd49836,
 189         0x81f5a6cf,0xde7aa528,0x8eb7da26,0xbfad3fa4,
 190         0x9d3a2ce4,0x9278500d,0xcc5f6a9b,0x467e5462,
 191         0x138df6c2,0xb8d890e8,0xf7392e5e,0xafc382f5,
 192         0x805d9fbe,0x93d0697c,0x2dd56fa9,0x1225cfb3,
 193         0x99acc83b,0x7d1810a7,0x639ce86e,0xbb3bdb7b,
 194         0x7826cd09,0x18596ef4,0xb79aec01,0x9a4f83a8,
 195         0x6e95e665,0xe6ffaa7e,0xcfbc2108,0xe815efe6,
 196         0x9be7bad9,0x366f4ace,0x099fead4,0x7cb029d6,
 197         0xb2a431af,0x233f2a31,0x94a5c630,0x66a235c0,
 198         0xbc4e7437,0xca82fca6,0xd090e0b0,0xd8a73315,
 199         0x9804f14a,0xdaec41f7,0x50cd7f0e,0xf691172f,
 200         0xd64d768d,0xb0ef434d,0x4daacc54,0x0496e4df,
 201         0xb5d19ee3,0x886a4c1b,0x1f2cc1b8,0x5165467f,
 202         0xea5e9d04,0x358c015d,0x7487fa73,0x410bfb2e,
 203         0x1d67b35a,0xd2db9252,0x5610e933,0x47d66d13,
 204         0x61d79a8c,0x0ca1377a,0x14f8598e,0x3c13eb89,
 205         0x27a9ceee,0xc961b735,0xe51ce1ed,0xb1477a3c,
 206         0xdfd29c59,0x73f2553f,0xce141879,0x37c773bf,
 207         0xcdf753ea,0xaafd5f5b,0x6f3ddf14,0xdb447886,
 208         0xf3afca81,0xc468b93e,0x3424382c,0x40a3c25f,
 209         0xc31d1672,0x25e2bc0c,0x493c288b,0x950dff41,
 210         0x01a83971,0xb30c08de,0xe4b4d89c,0xc1566490,
 211         0x84cb7b61,0xb632d570,0x5c6c4874,0x57b8d042,
 212       },{ /* Before: itable[2] */
 213         0xf45150a7,0x417e5365,0x171ac3a4,0x273a965e,
 214         0xab3bcb6b,0x9d1ff145,0xfaacab58,0xe34b9303,
 215         0x302055fa,0x76adf66d,0xcc889176,0x02f5254c,
 216         0xe54ffcd7,0x2ac5d7cb,0x35268044,0x62b58fa3,
 217         0xb1de495a,0xba25671b,0xea45980e,0xfe5de1c0,
 218         0x2fc30275,0x4c8112f0,0x468da397,0xd36bc6f9,
 219         0x8f03e75f,0x9215959c,0x6dbfeb7a,0x5295da59,
 220         0xbed42d83,0x7458d321,0xe0492969,0xc98e44c8,
 221         0xc2756a89,0x8ef47879,0x58996b3e,0xb927dd71,
 222         0xe1beb64f,0x88f017ad,0x20c966ac,0xce7db43a,
 223         0xdf63184a,0x1ae58231,0x51976033,0x5362457f,
 224         0x64b1e077,0x6bbb84ae,0x81fe1ca0,0x08f9942b,
 225         0x48705868,0x458f19fd,0xde94876c,0x7b52b7f8,
 226         0x73ab23d3,0x4b72e202,0x1fe3578f,0x55662aab,
 227         0xebb20728,0xb52f03c2,0xc5869a7b,0x37d3a508,
 228         0x2830f287,0xbf23b2a5,0x0302ba6a,0x16ed5c82,
 229         0xcf8a2b1c,0x79a792b4,0x07f3f0f2,0x694ea1e2,
 230         0xda65cdf4,0x0506d5be,0x34d11f62,0xa6c48afe,
 231         0x2e349d53,0xf3a2a055,0x8a0532e1,0xf6a475eb,
 232         0x830b39ec,0x6040aaef,0x715e069f,0x6ebd5110,
 233         0x213ef98a,0xdd963d06,0x3eddae05,0xe64d46bd,
 234         0x5491b58d,0xc471055d,0x06046fd4,0x5060ff15,
 235         0x981924fb,0xbdd697e9,0x4089cc43,0xd967779e,
 236         0xe8b0bd42,0x8907888b,0x19e7385b,0xc879dbee,
 237         0x7ca1470a,0x427ce90f,0x84f8c91e,0x00000000,
 238         0x80098386,0x2b3248ed,0x111eac70,0x5a6c4e72,
 239         0x0efdfbff,0x850f5638,0xae3d1ed5,0x2d362739,
 240         0x0f0a64d9,0x5c6821a6,0x5b9bd154,0x36243a2e,
 241         0x0a0cb167,0x57930fe7,0xeeb4d296,0x9b1b9e91,
 242         0xc0804fc5,0xdc61a220,0x775a694b,0x121c161a,
 243         0x93e20aba,0xa0c0e52a,0x223c43e0,0x1b121d17,
 244         0x090e0b0d,0x8bf2adc7,0xb62db9a8,0x1e14c8a9,
 245         0xf1578519,0x75af4c07,0x99eebbdd,0x7fa3fd60,
 246         0x01f79f26,0x725cbcf5,0x6644c53b,0xfb5b347e,
 247         0x438b7629,0x23cbdcc6,0xedb668fc,0xe4b863f1,
 248         0x31d7cadc,0x63421085,0x97134022,0xc6842011,
 249         0x4a857d24,0xbbd2f83d,0xf9ae1132,0x29c76da1,
 250         0x9e1d4b2f,0xb2dcf330,0x860dec52,0xc177d0e3,
 251         0xb32b6c16,0x70a999b9,0x9411fa48,0xe9472264,
 252         0xfca8c48c,0xf0a01a3f,0x7d56d82c,0x3322ef90,
 253         0x4987c74e,0x38d9c1d1,0xca8cfea2,0xd498360b,
 254         0xf5a6cf81,0x7aa528de,0xb7da268e,0xad3fa4bf,
 255         0x3a2ce49d,0x78500d92,0x5f6a9bcc,0x7e546246,
 256         0x8df6c213,0xd890e8b8,0x392e5ef7,0xc382f5af,
 257         0x5d9fbe80,0xd0697c93,0xd56fa92d,0x25cfb312,
 258         0xacc83b99,0x1810a77d,0x9ce86e63,0x3bdb7bbb,
 259         0x26cd0978,0x596ef418,0x9aec01b7,0x4f83a89a,
 260         0x95e6656e,0xffaa7ee6,0xbc2108cf,0x15efe6e8,
 261         0xe7bad99b,0x6f4ace36,0x9fead409,0xb029d67c,
 262         0xa431afb2,0x3f2a3123,0xa5c63094,0xa235c066,
 263         0x4e7437bc,0x82fca6ca,0x90e0b0d0,0xa73315d8,
 264         0x04f14a98,0xec41f7da,0xcd7f0e50,0x91172ff6,
 265         0x4d768dd6,0xef434db0,0xaacc544d,0x96e4df04,
 266         0xd19ee3b5,0x6a4c1b88,0x2cc1b81f,0x65467f51,
 267         0x5e9d04ea,0x8c015d35,0x87fa7374,0x0bfb2e41,
 268         0x67b35a1d,0xdb9252d2,0x10e93356,0xd66d1347,
 269         0xd79a8c61,0xa1377a0c,0xf8598e14,0x13eb893c,
 270         0xa9ceee27,0x61b735c9,0x1ce1ede5,0x477a3cb1,
 271         0xd29c59df,0xf2553f73,0x141879ce,0xc773bf37,
 272         0xf753eacd,0xfd5f5baa,0x3ddf146f,0x447886db,
 273         0xafca81f3,0x68b93ec4,0x24382c34,0xa3c25f40,
 274         0x1d1672c3,0xe2bc0c25,0x3c288b49,0x0dff4195,
 275         0xa8397101,0x0c08deb3,0xb4d89ce4,0x566490c1,
 276         0xcb7b6184,0x32d570b6,0x6c48745c,0xb8d04257,
 277       },{ /* Before: itable[3] */
 278         0x5150a7f4,0x7e536541,0x1ac3a417,0x3a965e27,
 279         0x3bcb6bab,0x1ff1459d,0xacab58fa,0x4b9303e3,
 280         0x2055fa30,0xadf66d76,0x889176cc,0xf5254c02,
 281         0x4ffcd7e5,0xc5d7cb2a,0x26804435,0xb58fa362,
 282         0xde495ab1,0x25671bba,0x45980eea,0x5de1c0fe,
 283         0xc302752f,0x8112f04c,0x8da39746,0x6bc6f9d3,
 284         0x03e75f8f,0x15959c92,0xbfeb7a6d,0x95da5952,
 285         0xd42d83be,0x58d32174,0x492969e0,0x8e44c8c9,
 286         0x756a89c2,0xf478798e,0x996b3e58,0x27dd71b9,
 287         0xbeb64fe1,0xf017ad88,0xc966ac20,0x7db43ace,
 288         0x63184adf,0xe582311a,0x97603351,0x62457f53,
 289         0xb1e07764,0xbb84ae6b,0xfe1ca081,0xf9942b08,
 290         0x70586848,0x8f19fd45,0x94876cde,0x52b7f87b,
 291         0xab23d373,0x72e2024b,0xe3578f1f,0x662aab55,
 292         0xb20728eb,0x2f03c2b5,0x869a7bc5,0xd3a50837,
 293         0x30f28728,0x23b2a5bf,0x02ba6a03,0xed5c8216,
 294         0x8a2b1ccf,0xa792b479,0xf3f0f207,0x4ea1e269,
 295         0x65cdf4da,0x06d5be05,0xd11f6234,0xc48afea6,
 296         0x349d532e,0xa2a055f3,0x0532e18a,0xa475ebf6,
 297         0x0b39ec83,0x40aaef60,0x5e069f71,0xbd51106e,
 298         0x3ef98a21,0x963d06dd,0xddae053e,0x4d46bde6,
 299         0x91b58d54,0x71055dc4,0x046fd406,0x60ff1550,
 300         0x1924fb98,0xd697e9bd,0x89cc4340,0x67779ed9,
 301         0xb0bd42e8,0x07888b89,0xe7385b19,0x79dbeec8,
 302         0xa1470a7c,0x7ce90f42,0xf8c91e84,0x00000000,
 303         0x09838680,0x3248ed2b,0x1eac7011,0x6c4e725a,
 304         0xfdfbff0e,0x0f563885,0x3d1ed5ae,0x3627392d,
 305         0x0a64d90f,0x6821a65c,0x9bd1545b,0x243a2e36,
 306         0x0cb1670a,0x930fe757,0xb4d296ee,0x1b9e919b,
 307         0x804fc5c0,0x61a220dc,0x5a694b77,0x1c161a12,
 308         0xe20aba93,0xc0e52aa0,0x3c43e022,0x121d171b,
 309         0x0e0b0d09,0xf2adc78b,0x2db9a8b6,0x14c8a91e,
 310         0x578519f1,0xaf4c0775,0xeebbdd99,0xa3fd607f,
 311         0xf79f2601,0x5cbcf572,0x44c53b66,0x5b347efb,
 312         0x8b762943,0xcbdcc623,0xb668fced,0xb863f1e4,
 313         0xd7cadc31,0x42108563,0x13402297,0x842011c6,
 314         0x857d244a,0xd2f83dbb,0xae1132f9,0xc76da129,
 315         0x1d4b2f9e,0xdcf330b2,0x0dec5286,0x77d0e3c1,
 316         0x2b6c16b3,0xa999b970,0x11fa4894,0x472264e9,
 317         0xa8c48cfc,0xa01a3ff0,0x56d82c7d,0x22ef9033,
 318         0x87c74e49,0xd9c1d138,0x8cfea2ca,0x98360bd4,
 319         0xa6cf81f5,0xa528de7a,0xda268eb7,0x3fa4bfad,
 320         0x2ce49d3a,0x500d9278,0x6a9bcc5f,0x5462467e,
 321         0xf6c2138d,0x90e8b8d8,0x2e5ef739,0x82f5afc3,
 322         0x9fbe805d,0x697c93d0,0x6fa92dd5,0xcfb31225,
 323         0xc83b99ac,0x10a77d18,0xe86e639c,0xdb7bbb3b,
 324         0xcd097826,0x6ef41859,0xec01b79a,0x83a89a4f,
 325         0xe6656e95,0xaa7ee6ff,0x2108cfbc,0xefe6e815,
 326         0xbad99be7,0x4ace366f,0xead4099f,0x29d67cb0,
 327         0x31afb2a4,0x2a31233f,0xc63094a5,0x35c066a2,
 328         0x7437bc4e,0xfca6ca82,0xe0b0d090,0x3315d8a7,
 329         0xf14a9804,0x41f7daec,0x7f0e50cd,0x172ff691,
 330         0x768dd64d,0x434db0ef,0xcc544daa,0xe4df0496,
 331         0x9ee3b5d1,0x4c1b886a,0xc1b81f2c,0x467f5165,
 332         0x9d04ea5e,0x015d358c,0xfa737487,0xfb2e410b,
 333         0xb35a1d67,0x9252d2db,0xe9335610,0x6d1347d6,
 334         0x9a8c61d7,0x377a0ca1,0x598e14f8,0xeb893c13,
 335         0xceee27a9,0xb735c961,0xe1ede51c,0x7a3cb147,
 336         0x9c59dfd2,0x553f73f2,0x1879ce14,0x73bf37c7,
 337         0x53eacdf7,0x5f5baafd,0xdf146f3d,0x7886db44,
 338         0xca81f3af,0xb93ec468,0x382c3424,0xc25f40a3,
 339         0x1672c31d,0xbc0c25e2,0x288b493c,0xff41950d,
 340         0x397101a8,0x08deb30c,0xd89ce4b4,0x6490c156,
 341         0x7b6184cb,0xd570b632,0x48745c6c,0xd04257b8,
 342       },
 343 #endif /* !AES_SMALL */
 344     }
 345   };
 346
 347 void
 348 aes_decrypt(const struct aes_ctx *ctx,
 349             size_t length, uint8_t *dst,
 350             const uint8_t *src)
 351 {
 352   assert(!(length % AES_BLOCK_SIZE) );
 353   _aes_decrypt(ctx->rounds, ctx->keys, &_aes_decrypt_table,
 354                length, dst, src);
 355 }
 356
 357 void
 358 aes128_decrypt(const struct aes128_ctx *ctx,
 359                size_t length, uint8_t *dst,
 360                const uint8_t *src)
 361 {
 362   assert(!(length % AES_BLOCK_SIZE) );
 363   _aes_decrypt(_AES128_ROUNDS, ctx->keys, &_aes_decrypt_table,
 364                length, dst, src);
 365 }
 366
 367 void
 368 aes192_decrypt(const struct aes192_ctx *ctx,
 369                size_t length, uint8_t *dst,
 370                const uint8_t *src)
 371 {
 372   assert(!(length % AES_BLOCK_SIZE) );
 373   _aes_decrypt(_AES192_ROUNDS, ctx->keys, &_aes_decrypt_table,
 374                length, dst, src);
 375 }
 376
 377 void
 378 aes256_decrypt(const struct aes256_ctx *ctx,
 379                size_t length, uint8_t *dst,
 380                const uint8_t *src)
 381 {
 382   assert(!(length % AES_BLOCK_SIZE) );
 383   _aes_decrypt(_AES256_ROUNDS, ctx->keys, &_aes_decrypt_table,
 384                length, dst, src);
 385 }