lib/aes128.c

   1 /*
   2  * Copyright (c) 2009 Nicira Networks.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 /*
  18  * Based on rijndael.txt by Philip J. Erdelsky, downloaded from
  19  * http://www.efgh.com/software/rijndael.htm on September 24, 2009.  The
  20  * license information there is: "Public domain; no restrictions on use."
  21  * The Apache license above applies only to Nicira's modifications to the
  22  * original code.
  23  */
  24
  25 #include <config.h>
  26
  27 #include "aes128.h"
  28
  29 #include <assert.h>
  30
  31 #include "util.h"
  32
  33 static const uint32_t Te0[256] = {
  34     0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU,
  35     0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U,
  36     0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU,
  37     0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU,
  38     0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U,
  39     0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU,
  40     0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU,
  41     0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU,
  42     0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU,
  43     0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU,
  44     0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U,
  45     0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU,
  46     0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU,
  47     0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U,
  48     0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU,
  49     0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU,
  50     0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU,
  51     0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU,
  52     0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU,
  53     0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U,
  54     0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU,
  55     0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU,
  56     0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU,
  57     0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU,
  58     0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U,
  59     0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U,
  60     0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U,
  61     0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U,
  62     0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU,
  63     0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U,
  64     0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U,
  65     0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU,
  66     0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU,
  67     0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U,
  68     0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U,
  69     0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U,
  70     0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU,
  71     0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U,
  72     0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU,
  73     0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U,
  74     0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU,
  75     0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U,
  76     0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U,
  77     0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU,
  78     0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U,
  79     0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U,
  80     0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U,
  81     0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U,
  82     0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U,
  83     0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U,
  84     0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U,
  85     0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U,
  86     0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU,
  87     0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U,
  88     0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U,
  89     0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U,
  90     0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U,
  91     0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U,
  92     0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U,
  93     0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU,
  94     0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U,
  95     0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U,
  96     0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U,
  97     0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU,
  98 };
  99
 100 static const uint32_t Te1[256] = {
 101     0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU,
 102     0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U,
 103     0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU,
 104     0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U,
 105     0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU,
 106     0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U,
 107     0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU,
 108     0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U,
 109     0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U,
 110     0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU,
 111     0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U,
 112     0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U,
 113     0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U,
 114     0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU,
 115     0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U,
 116     0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U,
 117     0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU,
 118     0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U,
 119     0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U,
 120     0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U,
 121     0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU,
 122     0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU,
 123     0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U,
 124     0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU,
 125     0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU,
 126     0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U,
 127     0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU,
 128     0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U,
 129     0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU,
 130     0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U,
 131     0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U,
 132     0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U,
 133     0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU,
 134     0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U,
 135     0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU,
 136     0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U,
 137     0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU,
 138     0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U,
 139     0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U,
 140     0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU,
 141     0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU,
 142     0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU,
 143     0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U,
 144     0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U,
 145     0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU,
 146     0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U,
 147     0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU,
 148     0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U,
 149     0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU,
 150     0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U,
 151     0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU,
 152     0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU,
 153     0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U,
 154     0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU,
 155     0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U,
 156     0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU,
 157     0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U,
 158     0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U,
 159     0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U,
 160     0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU,
 161     0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU,
 162     0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U,
 163     0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU,
 164     0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U,
 165 };
 166
 167 static const uint32_t Te2[256] = {
 168     0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU,
 169     0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U,
 170     0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU,
 171     0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U,
 172     0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU,
 173     0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U,
 174     0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU,
 175     0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U,
 176     0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U,
 177     0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU,
 178     0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U,
 179     0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U,
 180     0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U,
 181     0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU,
 182     0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U,
 183     0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U,
 184     0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU,
 185     0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U,
 186     0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U,
 187     0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U,
 188     0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU,
 189     0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU,
 190     0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U,
 191     0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU,
 192     0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU,
 193     0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U,
 194     0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU,
 195     0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U,
 196     0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU,
 197     0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U,
 198     0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U,
 199     0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U,
 200     0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU,
 201     0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U,
 202     0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU,
 203     0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U,
 204     0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU,
 205     0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U,
 206     0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U,
 207     0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU,
 208     0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU,
 209     0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU,
 210     0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U,
 211     0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U,
 212     0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU,
 213     0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U,
 214     0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU,
 215     0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U,
 216     0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU,
 217     0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U,
 218     0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU,
 219     0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU,
 220     0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U,
 221     0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU,
 222     0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U,
 223     0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU,
 224     0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U,
 225     0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U,
 226     0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U,
 227     0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU,
 228     0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU,
 229     0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U,
 230     0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU,
 231     0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U,
 232 };
 233
 234 static const uint32_t Te3[256] = {
 235     0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U,
 236     0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U,
 237     0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U,
 238     0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU,
 239     0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU,
 240     0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU,
 241     0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U,
 242     0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU,
 243     0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU,
 244     0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U,
 245     0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U,
 246     0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU,
 247     0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU,
 248     0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU,
 249     0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU,
 250     0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU,
 251     0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U,
 252     0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU,
 253     0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU,
 254     0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U,
 255     0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U,
 256     0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U,
 257     0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U,
 258     0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U,
 259     0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU,
 260     0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U,
 261     0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU,
 262     0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU,
 263     0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U,
 264     0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U,
 265     0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U,
 266     0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU,
 267     0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U,
 268     0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU,
 269     0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU,
 270     0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U,
 271     0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U,
 272     0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU,
 273     0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U,
 274     0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU,
 275     0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U,
 276     0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U,
 277     0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U,
 278     0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U,
 279     0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU,
 280     0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U,
 281     0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU,
 282     0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U,
 283     0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU,
 284     0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U,
 285     0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU,
 286     0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU,
 287     0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU,
 288     0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU,
 289     0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U,
 290     0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U,
 291     0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U,
 292     0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U,
 293     0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U,
 294     0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U,
 295     0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU,
 296     0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U,
 297     0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU,
 298     0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU,
 299 };
 300
 301 static const uint32_t Te4[256] = {
 302     0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU,
 303     0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U,
 304     0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU,
 305     0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U,
 306     0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU,
 307     0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U,
 308     0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU,
 309     0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U,
 310     0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U,
 311     0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU,
 312     0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U,
 313     0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U,
 314     0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U,
 315     0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU,
 316     0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U,
 317     0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U,
 318     0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU,
 319     0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U,
 320     0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U,
 321     0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U,
 322     0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU,
 323     0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU,
 324     0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U,
 325     0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU,
 326     0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU,
 327     0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U,
 328     0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU,
 329     0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U,
 330     0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU,
 331     0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U,
 332     0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U,
 333     0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U,
 334     0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU,
 335     0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U,
 336     0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU,
 337     0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U,
 338     0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU,
 339     0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U,
 340     0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U,
 341     0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU,
 342     0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU,
 343     0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU,
 344     0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U,
 345     0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U,
 346     0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU,
 347     0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U,
 348     0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU,
 349     0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U,
 350     0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU,
 351     0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U,
 352     0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU,
 353     0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU,
 354     0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U,
 355     0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU,
 356     0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U,
 357     0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU,
 358     0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U,
 359     0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U,
 360     0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U,
 361     0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU,
 362     0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU,
 363     0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U,
 364     0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU,
 365     0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U,
 366 };
 367
 368 static const uint32_t Td0[256] = {
 369     0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U,
 370     0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U,
 371     0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U,
 372     0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU,
 373     0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U,
 374     0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U,
 375     0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU,
 376     0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U,
 377     0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU,
 378     0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U,
 379     0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U,
 380     0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U,
 381     0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U,
 382     0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU,
 383     0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U,
 384     0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU,
 385     0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U,
 386     0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU,
 387     0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U,
 388     0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U,
 389     0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U,
 390     0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU,
 391     0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U,
 392     0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU,
 393     0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U,
 394     0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU,
 395     0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U,
 396     0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU,
 397     0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU,
 398     0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U,
 399     0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU,
 400     0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U,
 401     0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU,
 402     0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U,
 403     0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U,
 404     0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U,
 405     0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU,
 406     0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U,
 407     0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U,
 408     0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU,
 409     0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U,
 410     0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U,
 411     0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U,
 412     0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U,
 413     0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U,
 414     0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU,
 415     0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U,
 416     0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U,
 417     0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, 0x29b07cd6U,
 418     0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U,
 419     0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U,
 420     0xf104984aU, 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU,
 421     0x764dd68dU, 0x43efb04dU, 0xccaa4d54U, 0xe49604dfU,
 422     0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, 0x4665517fU,
 423     0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU,
 424     0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U,
 425     0x9ad7618cU, 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U,
 426     0xcea927eeU, 0xb761c935U, 0xe11ce5edU, 0x7a47b13cU,
 427     0x9cd2df59U, 0x55f2733fU, 0x1814ce79U, 0x73c737bfU,
 428     0x53f7cdeaU, 0x5ffdaa5bU, 0xdf3d6f14U, 0x7844db86U,
 429     0xcaaff381U, 0xb968c43eU, 0x3824342cU, 0xc2a3405fU,
 430     0x161dc372U, 0xbce2250cU, 0x283c498bU, 0xff0d9541U,
 431     0x39a80171U, 0x080cb3deU, 0xd8b4e49cU, 0x6456c190U,
 432     0x7bcb8461U, 0xd532b670U, 0x486c5c74U, 0xd0b85742U,
 433 };
 434
 435 static const uint32_t Td1[256] = {
 436     0x5051f4a7U, 0x537e4165U, 0xc31a17a4U, 0x963a275eU,
 437     0xcb3bab6bU, 0xf11f9d45U, 0xabacfa58U, 0x934be303U,
 438     0x552030faU, 0xf6ad766dU, 0x9188cc76U, 0x25f5024cU,
 439     0xfc4fe5d7U, 0xd7c52acbU, 0x80263544U, 0x8fb562a3U,
 440     0x49deb15aU, 0x6725ba1bU, 0x9845ea0eU, 0xe15dfec0U,
 441     0x02c32f75U, 0x12814cf0U, 0xa38d4697U, 0xc66bd3f9U,
 442     0xe7038f5fU, 0x9515929cU, 0xebbf6d7aU, 0xda955259U,
 443     0x2dd4be83U, 0xd3587421U, 0x2949e069U, 0x448ec9c8U,
 444     0x6a75c289U, 0x78f48e79U, 0x6b99583eU, 0xdd27b971U,
 445     0xb6bee14fU, 0x17f088adU, 0x66c920acU, 0xb47dce3aU,
 446     0x1863df4aU, 0x82e51a31U, 0x60975133U, 0x4562537fU,
 447     0xe0b16477U, 0x84bb6baeU, 0x1cfe81a0U, 0x94f9082bU,
 448     0x58704868U, 0x198f45fdU, 0x8794de6cU, 0xb7527bf8U,
 449     0x23ab73d3U, 0xe2724b02U, 0x57e31f8fU, 0x2a6655abU,
 450     0x07b2eb28U, 0x032fb5c2U, 0x9a86c57bU, 0xa5d33708U,
 451     0xf2302887U, 0xb223bfa5U, 0xba02036aU, 0x5ced1682U,
 452     0x2b8acf1cU, 0x92a779b4U, 0xf0f307f2U, 0xa14e69e2U,
 453     0xcd65daf4U, 0xd50605beU, 0x1fd13462U, 0x8ac4a6feU,
 454     0x9d342e53U, 0xa0a2f355U, 0x32058ae1U, 0x75a4f6ebU,
 455     0x390b83ecU, 0xaa4060efU, 0x065e719fU, 0x51bd6e10U,
 456     0xf93e218aU, 0x3d96dd06U, 0xaedd3e05U, 0x464de6bdU,
 457     0xb591548dU, 0x0571c45dU, 0x6f0406d4U, 0xff605015U,
 458     0x241998fbU, 0x97d6bde9U, 0xcc894043U, 0x7767d99eU,
 459     0xbdb0e842U, 0x8807898bU, 0x38e7195bU, 0xdb79c8eeU,
 460     0x47a17c0aU, 0xe97c420fU, 0xc9f8841eU, 0x00000000U,
 461     0x83098086U, 0x48322bedU, 0xac1e1170U, 0x4e6c5a72U,
 462     0xfbfd0effU, 0x560f8538U, 0x1e3daed5U, 0x27362d39U,
 463     0x640a0fd9U, 0x21685ca6U, 0xd19b5b54U, 0x3a24362eU,
 464     0xb10c0a67U, 0x0f9357e7U, 0xd2b4ee96U, 0x9e1b9b91U,
 465     0x4f80c0c5U, 0xa261dc20U, 0x695a774bU, 0x161c121aU,
 466     0x0ae293baU, 0xe5c0a02aU, 0x433c22e0U, 0x1d121b17U,
 467     0x0b0e090dU, 0xadf28bc7U, 0xb92db6a8U, 0xc8141ea9U,
 468     0x8557f119U, 0x4caf7507U, 0xbbee99ddU, 0xfda37f60U,
 469     0x9ff70126U, 0xbc5c72f5U, 0xc544663bU, 0x345bfb7eU,
 470     0x768b4329U, 0xdccb23c6U, 0x68b6edfcU, 0x63b8e4f1U,
 471     0xcad731dcU, 0x10426385U, 0x40139722U, 0x2084c611U,
 472     0x7d854a24U, 0xf8d2bb3dU, 0x11aef932U, 0x6dc729a1U,
 473     0x4b1d9e2fU, 0xf3dcb230U, 0xec0d8652U, 0xd077c1e3U,
 474     0x6c2bb316U, 0x99a970b9U, 0xfa119448U, 0x2247e964U,
 475     0xc4a8fc8cU, 0x1aa0f03fU, 0xd8567d2cU, 0xef223390U,
 476     0xc787494eU, 0xc1d938d1U, 0xfe8ccaa2U, 0x3698d40bU,
 477     0xcfa6f581U, 0x28a57adeU, 0x26dab78eU, 0xa43fadbfU,
 478     0xe42c3a9dU, 0x0d507892U, 0x9b6a5fccU, 0x62547e46U,
 479     0xc2f68d13U, 0xe890d8b8U, 0x5e2e39f7U, 0xf582c3afU,
 480     0xbe9f5d80U, 0x7c69d093U, 0xa96fd52dU, 0xb3cf2512U,
 481     0x3bc8ac99U, 0xa710187dU, 0x6ee89c63U, 0x7bdb3bbbU,
 482     0x09cd2678U, 0xf46e5918U, 0x01ec9ab7U, 0xa8834f9aU,
 483     0x65e6956eU, 0x7eaaffe6U, 0x0821bccfU, 0xe6ef15e8U,
 484     0xd9bae79bU, 0xce4a6f36U, 0xd4ea9f09U, 0xd629b07cU,
 485     0xaf31a4b2U, 0x312a3f23U, 0x30c6a594U, 0xc035a266U,
 486     0x37744ebcU, 0xa6fc82caU, 0xb0e090d0U, 0x1533a7d8U,
 487     0x4af10498U, 0xf741ecdaU, 0x0e7fcd50U, 0x2f1791f6U,
 488     0x8d764dd6U, 0x4d43efb0U, 0x54ccaa4dU, 0xdfe49604U,
 489     0xe39ed1b5U, 0x1b4c6a88U, 0xb8c12c1fU, 0x7f466551U,
 490     0x049d5eeaU, 0x5d018c35U, 0x73fa8774U, 0x2efb0b41U,
 491     0x5ab3671dU, 0x5292dbd2U, 0x33e91056U, 0x136dd647U,
 492     0x8c9ad761U, 0x7a37a10cU, 0x8e59f814U, 0x89eb133cU,
 493     0xeecea927U, 0x35b761c9U, 0xede11ce5U, 0x3c7a47b1U,
 494     0x599cd2dfU, 0x3f55f273U, 0x791814ceU, 0xbf73c737U,
 495     0xea53f7cdU, 0x5b5ffdaaU, 0x14df3d6fU, 0x867844dbU,
 496     0x81caaff3U, 0x3eb968c4U, 0x2c382434U, 0x5fc2a340U,
 497     0x72161dc3U, 0x0cbce225U, 0x8b283c49U, 0x41ff0d95U,
 498     0x7139a801U, 0xde080cb3U, 0x9cd8b4e4U, 0x906456c1U,
 499     0x617bcb84U, 0x70d532b6U, 0x74486c5cU, 0x42d0b857U,
 500 };
 501
 502 static const uint32_t Td2[256] = {
 503     0xa75051f4U, 0x65537e41U, 0xa4c31a17U, 0x5e963a27U,
 504     0x6bcb3babU, 0x45f11f9dU, 0x58abacfaU, 0x03934be3U,
 505     0xfa552030U, 0x6df6ad76U, 0x769188ccU, 0x4c25f502U,
 506     0xd7fc4fe5U, 0xcbd7c52aU, 0x44802635U, 0xa38fb562U,
 507     0x5a49deb1U, 0x1b6725baU, 0x0e9845eaU, 0xc0e15dfeU,
 508     0x7502c32fU, 0xf012814cU, 0x97a38d46U, 0xf9c66bd3U,
 509     0x5fe7038fU, 0x9c951592U, 0x7aebbf6dU, 0x59da9552U,
 510     0x832dd4beU, 0x21d35874U, 0x692949e0U, 0xc8448ec9U,
 511     0x896a75c2U, 0x7978f48eU, 0x3e6b9958U, 0x71dd27b9U,
 512     0x4fb6bee1U, 0xad17f088U, 0xac66c920U, 0x3ab47dceU,
 513     0x4a1863dfU, 0x3182e51aU, 0x33609751U, 0x7f456253U,
 514     0x77e0b164U, 0xae84bb6bU, 0xa01cfe81U, 0x2b94f908U,
 515     0x68587048U, 0xfd198f45U, 0x6c8794deU, 0xf8b7527bU,
 516     0xd323ab73U, 0x02e2724bU, 0x8f57e31fU, 0xab2a6655U,
 517     0x2807b2ebU, 0xc2032fb5U, 0x7b9a86c5U, 0x08a5d337U,
 518     0x87f23028U, 0xa5b223bfU, 0x6aba0203U, 0x825ced16U,
 519     0x1c2b8acfU, 0xb492a779U, 0xf2f0f307U, 0xe2a14e69U,
 520     0xf4cd65daU, 0xbed50605U, 0x621fd134U, 0xfe8ac4a6U,
 521     0x539d342eU, 0x55a0a2f3U, 0xe132058aU, 0xeb75a4f6U,
 522     0xec390b83U, 0xefaa4060U, 0x9f065e71U, 0x1051bd6eU,
 523     0x8af93e21U, 0x063d96ddU, 0x05aedd3eU, 0xbd464de6U,
 524     0x8db59154U, 0x5d0571c4U, 0xd46f0406U, 0x15ff6050U,
 525     0xfb241998U, 0xe997d6bdU, 0x43cc8940U, 0x9e7767d9U,
 526     0x42bdb0e8U, 0x8b880789U, 0x5b38e719U, 0xeedb79c8U,
 527     0x0a47a17cU, 0x0fe97c42U, 0x1ec9f884U, 0x00000000U,
 528     0x86830980U, 0xed48322bU, 0x70ac1e11U, 0x724e6c5aU,
 529     0xfffbfd0eU, 0x38560f85U, 0xd51e3daeU, 0x3927362dU,
 530     0xd9640a0fU, 0xa621685cU, 0x54d19b5bU, 0x2e3a2436U,
 531     0x67b10c0aU, 0xe70f9357U, 0x96d2b4eeU, 0x919e1b9bU,
 532     0xc54f80c0U, 0x20a261dcU, 0x4b695a77U, 0x1a161c12U,
 533     0xba0ae293U, 0x2ae5c0a0U, 0xe0433c22U, 0x171d121bU,
 534     0x0d0b0e09U, 0xc7adf28bU, 0xa8b92db6U, 0xa9c8141eU,
 535     0x198557f1U, 0x074caf75U, 0xddbbee99U, 0x60fda37fU,
 536     0x269ff701U, 0xf5bc5c72U, 0x3bc54466U, 0x7e345bfbU,
 537     0x29768b43U, 0xc6dccb23U, 0xfc68b6edU, 0xf163b8e4U,
 538     0xdccad731U, 0x85104263U, 0x22401397U, 0x112084c6U,
 539     0x247d854aU, 0x3df8d2bbU, 0x3211aef9U, 0xa16dc729U,
 540     0x2f4b1d9eU, 0x30f3dcb2U, 0x52ec0d86U, 0xe3d077c1U,
 541     0x166c2bb3U, 0xb999a970U, 0x48fa1194U, 0x642247e9U,
 542     0x8cc4a8fcU, 0x3f1aa0f0U, 0x2cd8567dU, 0x90ef2233U,
 543     0x4ec78749U, 0xd1c1d938U, 0xa2fe8ccaU, 0x0b3698d4U,
 544     0x81cfa6f5U, 0xde28a57aU, 0x8e26dab7U, 0xbfa43fadU,
 545     0x9de42c3aU, 0x920d5078U, 0xcc9b6a5fU, 0x4662547eU,
 546     0x13c2f68dU, 0xb8e890d8U, 0xf75e2e39U, 0xaff582c3U,
 547     0x80be9f5dU, 0x937c69d0U, 0x2da96fd5U, 0x12b3cf25U,
 548     0x993bc8acU, 0x7da71018U, 0x636ee89cU, 0xbb7bdb3bU,
 549     0x7809cd26U, 0x18f46e59U, 0xb701ec9aU, 0x9aa8834fU,
 550     0x6e65e695U, 0xe67eaaffU, 0xcf0821bcU, 0xe8e6ef15U,
 551     0x9bd9bae7U, 0x36ce4a6fU, 0x09d4ea9fU, 0x7cd629b0U,
 552     0xb2af31a4U, 0x23312a3fU, 0x9430c6a5U, 0x66c035a2U,
 553     0xbc37744eU, 0xcaa6fc82U, 0xd0b0e090U, 0xd81533a7U,
 554     0x984af104U, 0xdaf741ecU, 0x500e7fcdU, 0xf62f1791U,
 555     0xd68d764dU, 0xb04d43efU, 0x4d54ccaaU, 0x04dfe496U,
 556     0xb5e39ed1U, 0x881b4c6aU, 0x1fb8c12cU, 0x517f4665U,
 557     0xea049d5eU, 0x355d018cU, 0x7473fa87U, 0x412efb0bU,
 558     0x1d5ab367U, 0xd25292dbU, 0x5633e910U, 0x47136dd6U,
 559     0x618c9ad7U, 0x0c7a37a1U, 0x148e59f8U, 0x3c89eb13U,
 560     0x27eecea9U, 0xc935b761U, 0xe5ede11cU, 0xb13c7a47U,
 561     0xdf599cd2U, 0x733f55f2U, 0xce791814U, 0x37bf73c7U,
 562     0xcdea53f7U, 0xaa5b5ffdU, 0x6f14df3dU, 0xdb867844U,
 563     0xf381caafU, 0xc43eb968U, 0x342c3824U, 0x405fc2a3U,
 564     0xc372161dU, 0x250cbce2U, 0x498b283cU, 0x9541ff0dU,
 565     0x017139a8U, 0xb3de080cU, 0xe49cd8b4U, 0xc1906456U,
 566     0x84617bcbU, 0xb670d532U, 0x5c74486cU, 0x5742d0b8U,
 567 };
 568
 569 static const uint32_t Td3[256] = {
 570     0xf4a75051U, 0x4165537eU, 0x17a4c31aU, 0x275e963aU,
 571     0xab6bcb3bU, 0x9d45f11fU, 0xfa58abacU, 0xe303934bU,
 572     0x30fa5520U, 0x766df6adU, 0xcc769188U, 0x024c25f5U,
 573     0xe5d7fc4fU, 0x2acbd7c5U, 0x35448026U, 0x62a38fb5U,
 574     0xb15a49deU, 0xba1b6725U, 0xea0e9845U, 0xfec0e15dU,
 575     0x2f7502c3U, 0x4cf01281U, 0x4697a38dU, 0xd3f9c66bU,
 576     0x8f5fe703U, 0x929c9515U, 0x6d7aebbfU, 0x5259da95U,
 577     0xbe832dd4U, 0x7421d358U, 0xe0692949U, 0xc9c8448eU,
 578     0xc2896a75U, 0x8e7978f4U, 0x583e6b99U, 0xb971dd27U,
 579     0xe14fb6beU, 0x88ad17f0U, 0x20ac66c9U, 0xce3ab47dU,
 580     0xdf4a1863U, 0x1a3182e5U, 0x51336097U, 0x537f4562U,
 581     0x6477e0b1U, 0x6bae84bbU, 0x81a01cfeU, 0x082b94f9U,
 582     0x48685870U, 0x45fd198fU, 0xde6c8794U, 0x7bf8b752U,
 583     0x73d323abU, 0x4b02e272U, 0x1f8f57e3U, 0x55ab2a66U,
 584     0xeb2807b2U, 0xb5c2032fU, 0xc57b9a86U, 0x3708a5d3U,
 585     0x2887f230U, 0xbfa5b223U, 0x036aba02U, 0x16825cedU,
 586     0xcf1c2b8aU, 0x79b492a7U, 0x07f2f0f3U, 0x69e2a14eU,
 587     0xdaf4cd65U, 0x05bed506U, 0x34621fd1U, 0xa6fe8ac4U,
 588     0x2e539d34U, 0xf355a0a2U, 0x8ae13205U, 0xf6eb75a4U,
 589     0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU,
 590     0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU,
 591     0x548db591U, 0xc45d0571U, 0x06d46f04U, 0x5015ff60U,
 592     0x98fb2419U, 0xbde997d6U, 0x4043cc89U, 0xd99e7767U,
 593     0xe842bdb0U, 0x898b8807U, 0x195b38e7U, 0xc8eedb79U,
 594     0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U,
 595     0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU,
 596     0x0efffbfdU, 0x8538560fU, 0xaed51e3dU, 0x2d392736U,
 597     0x0fd9640aU, 0x5ca62168U, 0x5b54d19bU, 0x362e3a24U,
 598     0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, 0x9b919e1bU,
 599     0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU,
 600     0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U,
 601     0x090d0b0eU, 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U,
 602     0xf1198557U, 0x75074cafU, 0x99ddbbeeU, 0x7f60fda3U,
 603     0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, 0xfb7e345bU,
 604     0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U,
 605     0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U,
 606     0x4a247d85U, 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U,
 607     0x9e2f4b1dU, 0xb230f3dcU, 0x8652ec0dU, 0xc1e3d077U,
 608     0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, 0xe9642247U,
 609     0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U,
 610     0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U,
 611     0xf581cfa6U, 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU,
 612     0x3a9de42cU, 0x78920d50U, 0x5fcc9b6aU, 0x7e466254U,
 613     0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, 0xc3aff582U,
 614     0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU,
 615     0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU,
 616     0x267809cdU, 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U,
 617     0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU,
 618     0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U,
 619     0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U,
 620     0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U,
 621     0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U,
 622     0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U,
 623     0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U,
 624     0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU,
 625     0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU,
 626     0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU,
 627     0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU,
 628     0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U,
 629     0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U,
 630     0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U,
 631     0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU,
 632     0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U,
 633     0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U,
 634 };
 635
 636 static const uint32_t Td4[256] = {
 637     0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U,
 638     0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U,
 639     0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU,
 640     0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU,
 641     0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U,
 642     0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U,
 643     0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U,
 644     0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU,
 645     0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U,
 646     0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU,
 647     0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU,
 648     0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU,
 649     0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U,
 650     0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U,
 651     0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U,
 652     0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U,
 653     0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U,
 654     0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U,
 655     0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU,
 656     0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U,
 657     0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U,
 658     0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU,
 659     0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U,
 660     0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U,
 661     0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U,
 662     0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU,
 663     0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U,
 664     0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U,
 665     0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU,
 666     0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U,
 667     0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U,
 668     0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU,
 669     0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U,
 670     0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU,
 671     0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU,
 672     0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U,
 673     0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U,
 674     0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U,
 675     0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U,
 676     0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU,
 677     0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U,
 678     0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U,
 679     0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU,
 680     0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU,
 681     0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU,
 682     0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U,
 683     0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU,
 684     0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U,
 685     0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U,
 686     0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U,
 687     0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U,
 688     0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU,
 689     0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U,
 690     0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU,
 691     0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU,
 692     0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU,
 693     0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU,
 694     0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U,
 695     0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU,
 696     0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U,
 697     0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU,
 698     0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U,
 699     0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U,
 700     0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU,
 701 };
 702
 703 static const uint32_t rcon[] = {
 704     0x01000000, 0x02000000, 0x04000000, 0x08000000,
 705     0x10000000, 0x20000000, 0x40000000, 0x80000000,
 706     0x1B000000, 0x36000000,
 707 };
 708
 709 static uint32_t
 710 get_u32(const uint8_t *p)
 711 {
 712     uint32_t p0 = p[0];
 713     uint32_t p1 = p[1];
 714     uint32_t p2 = p[2];
 715     uint32_t p3 = p[3];
 716     return (p0 << 24) | (p1 << 16) | (p2 << 8) | p3;
 717 }
 718
 719 static void
 720 put_u32(uint8_t *p, uint32_t x)
 721 {
 722     p[0] = x >> 24;
 723     p[1] = x >> 16;
 724     p[2] = x >> 8;
 725     p[3] = x;
 726 }
 727
 728 /* Expands 128-bit 'key' into the encryption key 'schedule'. */
 729 void
 730 aes128_schedule(struct aes128 *aes, const uint8_t key[16])
 731 {
 732     uint32_t *rk = aes->rk;
 733     int i;
 734
 735     rk[0] = get_u32(key);
 736     rk[1] = get_u32(key + 4);
 737     rk[2] = get_u32(key + 8);
 738     rk[3] = get_u32(key + 12);
 739     for (i = 0; i < 10; i++, rk += 4) {
 740         uint32_t temp = rk[3];
 741         rk[4] = (rk[0]
 742                  ^ (Te4[(temp >> 16) & 0xff] & 0xff000000)
 743                  ^ (Te4[(temp >>  8) & 0xff] & 0x00ff0000)
 744                  ^ (Te4[(temp      ) & 0xff] & 0x0000ff00)
 745                  ^ (Te4[(temp >> 24)       ] & 0x000000ff)
 746                  ^ rcon[i]);
 747         rk[5] = rk[1] ^ rk[4];
 748         rk[6] = rk[2] ^ rk[5];
 749         rk[7] = rk[3] ^ rk[6];
 750     }
 751     assert(rk == &aes->rk[40]);
 752 }
 753
 754 void
 755 aes128_encrypt(const struct aes128 *aes, const void *input_, void *output_)
 756 {
 757     const uint8_t *input = input_;
 758     uint8_t *output = output_;
 759     const uint32_t *rk = aes->rk;
 760     uint32_t s0, s1, s2, s3;
 761     uint32_t t0, t1, t2, t3;
 762     int r;
 763
 764     /* Map byte array block to cipher state and add initial round key. */
 765     s0 = get_u32(input     ) ^ rk[0];
 766     s1 = get_u32(input +  4) ^ rk[1];
 767     s2 = get_u32(input +  8) ^ rk[2];
 768     s3 = get_u32(input + 12) ^ rk[3];
 769
 770     /* 10 full rounds. */
 771     r = 10 / 2;
 772     for (;;) {
 773         t0 = (Te0[(s0 >> 24)       ]
 774               ^ Te1[(s1 >> 16) & 0xff]
 775               ^ Te2[(s2 >>  8) & 0xff]
 776               ^ Te3[(s3      ) & 0xff]
 777               ^ rk[4]);
 778         t1 = (Te0[(s1 >> 24)       ]
 779               ^ Te1[(s2 >> 16) & 0xff]
 780               ^ Te2[(s3 >>  8) & 0xff]
 781               ^ Te3[(s0      ) & 0xff]
 782               ^ rk[5]);
 783         t2 = (Te0[(s2 >> 24)       ]
 784               ^ Te1[(s3 >> 16) & 0xff]
 785               ^ Te2[(s0 >>  8) & 0xff]
 786               ^ Te3[(s1      ) & 0xff]
 787               ^ rk[6]);
 788         t3 = (Te0[(s3 >> 24)       ]
 789               ^ Te1[(s0 >> 16) & 0xff]
 790               ^ Te2[(s1 >>  8) & 0xff]
 791               ^ Te3[(s2      ) & 0xff]
 792               ^ rk[7]);
 793
 794         rk += 8;
 795         if (--r == 0) {
 796             break;
 797         }
 798
 799         s0 = (Te0[(t0 >> 24)       ]
 800               ^ Te1[(t1 >> 16) & 0xff]
 801               ^ Te2[(t2 >>  8) & 0xff]
 802               ^ Te3[(t3      ) & 0xff]
 803               ^ rk[0]);
 804         s1 = (Te0[(t1 >> 24)       ]
 805               ^ Te1[(t2 >> 16) & 0xff]
 806               ^ Te2[(t3 >>  8) & 0xff]
 807               ^ Te3[(t0      ) & 0xff]
 808               ^ rk[1]);
 809         s2 = (Te0[(t2 >> 24)       ]
 810               ^ Te1[(t3 >> 16) & 0xff]
 811               ^ Te2[(t0 >>  8) & 0xff]
 812               ^ Te3[(t1      ) & 0xff]
 813               ^ rk[2]);
 814         s3 = (Te0[(t3 >> 24)       ]
 815               ^ Te1[(t0 >> 16) & 0xff]
 816               ^ Te2[(t1 >>  8) & 0xff]
 817               ^ Te3[(t2      ) & 0xff]
 818               ^ rk[3]);
 819     }
 820
 821     /* Apply last round and map cipher state to byte array block. */
 822     s0 = ((Te4[(t0 >> 24)       ] & 0xff000000)
 823           ^ (Te4[(t1 >> 16) & 0xff] & 0x00ff0000)
 824           ^ (Te4[(t2 >>  8) & 0xff] & 0x0000ff00)
 825           ^ (Te4[(t3      ) & 0xff] & 0x000000ff)
 826           ^ rk[0]);
 827     put_u32(output     , s0);
 828     s1 = ((Te4[(t1 >> 24)       ] & 0xff000000)
 829           ^ (Te4[(t2 >> 16) & 0xff] & 0x00ff0000)
 830           ^ (Te4[(t3 >>  8) & 0xff] & 0x0000ff00)
 831           ^ (Te4[(t0      ) & 0xff] & 0x000000ff)
 832           ^ rk[1]);
 833     put_u32(output +  4, s1);
 834     s2 = ((Te4[(t2 >> 24)       ] & 0xff000000)
 835           ^ (Te4[(t3 >> 16) & 0xff] & 0x00ff0000)
 836           ^ (Te4[(t0 >>  8) & 0xff] & 0x0000ff00)
 837           ^ (Te4[(t1      ) & 0xff] & 0x000000ff)
 838           ^ rk[2]);
 839     put_u32(output +  8, s2);
 840     s3 = ((Te4[(t3 >> 24)       ] & 0xff000000)
 841           ^ (Te4[(t0 >> 16) & 0xff] & 0x00ff0000)
 842           ^ (Te4[(t1 >>  8) & 0xff] & 0x0000ff00)
 843           ^ (Te4[(t2      ) & 0xff] & 0x000000ff)
 844           ^ rk[3]);
 845     put_u32(output + 12, s3);
 846 }