extlibs/tinydtls/aes/rijndael.c

   1 /*      $OpenBSD: rijndael.c,v 1.19 2008/06/09 07:49:45 djm Exp $ */
   2
   3 /**
   4  * rijndael-alg-fst.c
   5  *
   6  * @version 3.0 (December 2000)
   7  *
   8  * Optimised ANSI C code for the Rijndael cipher (now AES)
   9  *
  10  * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
  11  * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
  12  * @author Paulo Barreto <paulo.barreto@terra.com.br>
  13  *
  14  * This code is hereby placed in the public domain.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
  17  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
  20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  23  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  25  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  26  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /* #include <sys/param.h> */
  30 /* #include <sys/systm.h> */
  31
  32 #include "rijndael.h"
  33
  34 #ifdef ARDUINO_AVR_MEGA2560
  35         #include <pgmspace.h>
  36 #else
  37         #define PROGMEM
  38         #define pgm_read_dword *
  39 #endif
  40
  41 #undef FULL_UNROLL
  42
  43 /*
  44 Te0[x] = S [x].[02, 01, 01, 03];
  45 Te1[x] = S [x].[03, 02, 01, 01];
  46 Te2[x] = S [x].[01, 03, 02, 01];
  47 Te3[x] = S [x].[01, 01, 03, 02];
  48 Te4[x] = S [x].[01, 01, 01, 01];
  49
  50 Td0[x] = Si[x].[0e, 09, 0d, 0b];
  51 Td1[x] = Si[x].[0b, 0e, 09, 0d];
  52 Td2[x] = Si[x].[0d, 0b, 0e, 09];
  53 Td3[x] = Si[x].[09, 0d, 0b, 0e];
  54 Td4[x] = Si[x].[01, 01, 01, 01];
  55 */
  56
  57 PROGMEM static const aes_u32 Te0[256] = {
  58     0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU,
  59     0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U,
  60     0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU,
  61     0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU,
  62     0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U,
  63     0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU,
  64     0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU,
  65     0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU,
  66     0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU,
  67     0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU,
  68     0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U,
  69     0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU,
  70     0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU,
  71     0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U,
  72     0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU,
  73     0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU,
  74     0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU,
  75     0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU,
  76     0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU,
  77     0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U,
  78     0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU,
  79     0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU,
  80     0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU,
  81     0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU,
  82     0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U,
  83     0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U,
  84     0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U,
  85     0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U,
  86     0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU,
  87     0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U,
  88     0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U,
  89     0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU,
  90     0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU,
  91     0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U,
  92     0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U,
  93     0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U,
  94     0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU,
  95     0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U,
  96     0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU,
  97     0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U,
  98     0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU,
  99     0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U,
 100     0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U,
 101     0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU,
 102     0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U,
 103     0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U,
 104     0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U,
 105     0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U,
 106     0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U,
 107     0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U,
 108     0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U,
 109     0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U,
 110     0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU,
 111     0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U,
 112     0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U,
 113     0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U,
 114     0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U,
 115     0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U,
 116     0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U,
 117     0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU,
 118     0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U,
 119     0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U,
 120     0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U,
 121     0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU,
 122 };
 123 PROGMEM static const aes_u32 Te1[256] = {
 124     0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU,
 125     0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U,
 126     0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU,
 127     0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U,
 128     0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU,
 129     0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U,
 130     0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU,
 131     0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U,
 132     0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U,
 133     0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU,
 134     0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U,
 135     0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U,
 136     0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U,
 137     0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU,
 138     0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U,
 139     0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U,
 140     0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU,
 141     0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U,
 142     0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U,
 143     0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U,
 144     0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU,
 145     0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU,
 146     0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U,
 147     0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU,
 148     0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU,
 149     0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U,
 150     0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU,
 151     0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U,
 152     0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU,
 153     0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U,
 154     0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U,
 155     0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U,
 156     0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU,
 157     0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U,
 158     0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU,
 159     0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U,
 160     0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU,
 161     0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U,
 162     0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U,
 163     0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU,
 164     0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU,
 165     0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU,
 166     0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U,
 167     0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U,
 168     0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU,
 169     0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U,
 170     0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU,
 171     0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U,
 172     0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU,
 173     0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U,
 174     0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU,
 175     0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU,
 176     0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U,
 177     0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU,
 178     0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U,
 179     0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU,
 180     0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U,
 181     0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U,
 182     0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U,
 183     0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU,
 184     0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU,
 185     0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U,
 186     0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU,
 187     0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U,
 188 };
 189 PROGMEM static const aes_u32 Te2[256] = {
 190     0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU,
 191     0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U,
 192     0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU,
 193     0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U,
 194     0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU,
 195     0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U,
 196     0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU,
 197     0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U,
 198     0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U,
 199     0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU,
 200     0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U,
 201     0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U,
 202     0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U,
 203     0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU,
 204     0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U,
 205     0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U,
 206     0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU,
 207     0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U,
 208     0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U,
 209     0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U,
 210     0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU,
 211     0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU,
 212     0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U,
 213     0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU,
 214     0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU,
 215     0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U,
 216     0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU,
 217     0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U,
 218     0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU,
 219     0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U,
 220     0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U,
 221     0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U,
 222     0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU,
 223     0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U,
 224     0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU,
 225     0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U,
 226     0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU,
 227     0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U,
 228     0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U,
 229     0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU,
 230     0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU,
 231     0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU,
 232     0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U,
 233     0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U,
 234     0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU,
 235     0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U,
 236     0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU,
 237     0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U,
 238     0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU,
 239     0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U,
 240     0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU,
 241     0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU,
 242     0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U,
 243     0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU,
 244     0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U,
 245     0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU,
 246     0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U,
 247     0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U,
 248     0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U,
 249     0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU,
 250     0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU,
 251     0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U,
 252     0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU,
 253     0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U,
 254 };
 255 PROGMEM static const aes_u32 Te3[256] = {
 256     0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U,
 257     0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U,
 258     0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U,
 259     0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU,
 260     0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU,
 261     0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU,
 262     0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U,
 263     0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU,
 264     0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU,
 265     0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U,
 266     0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U,
 267     0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU,
 268     0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU,
 269     0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU,
 270     0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU,
 271     0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU,
 272     0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U,
 273     0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU,
 274     0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU,
 275     0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U,
 276     0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U,
 277     0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U,
 278     0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U,
 279     0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U,
 280     0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU,
 281     0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U,
 282     0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU,
 283     0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU,
 284     0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U,
 285     0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U,
 286     0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U,
 287     0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU,
 288     0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U,
 289     0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU,
 290     0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU,
 291     0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U,
 292     0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U,
 293     0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU,
 294     0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U,
 295     0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU,
 296     0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U,
 297     0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U,
 298     0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U,
 299     0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U,
 300     0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU,
 301     0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U,
 302     0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU,
 303     0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U,
 304     0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU,
 305     0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U,
 306     0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU,
 307     0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU,
 308     0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU,
 309     0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU,
 310     0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U,
 311     0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U,
 312     0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U,
 313     0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U,
 314     0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U,
 315     0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U,
 316     0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU,
 317     0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U,
 318     0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU,
 319     0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU,
 320 };
 321 PROGMEM static const aes_u32 Te4[256] = {
 322     0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU,
 323     0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U,
 324     0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU,
 325     0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U,
 326     0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU,
 327     0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U,
 328     0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU,
 329     0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U,
 330     0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U,
 331     0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU,
 332     0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U,
 333     0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U,
 334     0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U,
 335     0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU,
 336     0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U,
 337     0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U,
 338     0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU,
 339     0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U,
 340     0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U,
 341     0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U,
 342     0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU,
 343     0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU,
 344     0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U,
 345     0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU,
 346     0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU,
 347     0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U,
 348     0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU,
 349     0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U,
 350     0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU,
 351     0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U,
 352     0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U,
 353     0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U,
 354     0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU,
 355     0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U,
 356     0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU,
 357     0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U,
 358     0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU,
 359     0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U,
 360     0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U,
 361     0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU,
 362     0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU,
 363     0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU,
 364     0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U,
 365     0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U,
 366     0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU,
 367     0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U,
 368     0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU,
 369     0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U,
 370     0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU,
 371     0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U,
 372     0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU,
 373     0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU,
 374     0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U,
 375     0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU,
 376     0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U,
 377     0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU,
 378     0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U,
 379     0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U,
 380     0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U,
 381     0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU,
 382     0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU,
 383     0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U,
 384     0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU,
 385     0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U,
 386 };
 387
 388 #ifdef WITH_AES_DECRYPT
 389
 390 PROGMEM static const aes_u32 Td0[256] = {
 391     0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U,
 392     0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U,
 393     0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U,
 394     0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU,
 395     0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U,
 396     0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U,
 397     0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU,
 398     0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U,
 399     0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU,
 400     0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U,
 401     0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U,
 402     0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U,
 403     0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U,
 404     0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU,
 405     0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U,
 406     0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU,
 407     0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U,
 408     0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU,
 409     0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U,
 410     0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U,
 411     0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U,
 412     0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU,
 413     0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U,
 414     0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU,
 415     0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U,
 416     0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU,
 417     0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U,
 418     0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU,
 419     0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU,
 420     0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U,
 421     0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU,
 422     0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U,
 423     0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU,
 424     0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U,
 425     0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U,
 426     0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U,
 427     0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU,
 428     0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U,
 429     0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U,
 430     0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU,
 431     0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U,
 432     0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U,
 433     0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U,
 434     0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U,
 435     0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U,
 436     0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU,
 437     0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U,
 438     0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U,
 439     0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, 0x29b07cd6U,
 440     0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U,
 441     0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U,
 442     0xf104984aU, 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU,
 443     0x764dd68dU, 0x43efb04dU, 0xccaa4d54U, 0xe49604dfU,
 444     0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, 0x4665517fU,
 445     0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU,
 446     0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U,
 447     0x9ad7618cU, 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U,
 448     0xcea927eeU, 0xb761c935U, 0xe11ce5edU, 0x7a47b13cU,
 449     0x9cd2df59U, 0x55f2733fU, 0x1814ce79U, 0x73c737bfU,
 450     0x53f7cdeaU, 0x5ffdaa5bU, 0xdf3d6f14U, 0x7844db86U,
 451     0xcaaff381U, 0xb968c43eU, 0x3824342cU, 0xc2a3405fU,
 452     0x161dc372U, 0xbce2250cU, 0x283c498bU, 0xff0d9541U,
 453     0x39a80171U, 0x080cb3deU, 0xd8b4e49cU, 0x6456c190U,
 454     0x7bcb8461U, 0xd532b670U, 0x486c5c74U, 0xd0b85742U,
 455 };
 456 PROGMEM static const aes_u32 Td1[256] = {
 457     0x5051f4a7U, 0x537e4165U, 0xc31a17a4U, 0x963a275eU,
 458     0xcb3bab6bU, 0xf11f9d45U, 0xabacfa58U, 0x934be303U,
 459     0x552030faU, 0xf6ad766dU, 0x9188cc76U, 0x25f5024cU,
 460     0xfc4fe5d7U, 0xd7c52acbU, 0x80263544U, 0x8fb562a3U,
 461     0x49deb15aU, 0x6725ba1bU, 0x9845ea0eU, 0xe15dfec0U,
 462     0x02c32f75U, 0x12814cf0U, 0xa38d4697U, 0xc66bd3f9U,
 463     0xe7038f5fU, 0x9515929cU, 0xebbf6d7aU, 0xda955259U,
 464     0x2dd4be83U, 0xd3587421U, 0x2949e069U, 0x448ec9c8U,
 465     0x6a75c289U, 0x78f48e79U, 0x6b99583eU, 0xdd27b971U,
 466     0xb6bee14fU, 0x17f088adU, 0x66c920acU, 0xb47dce3aU,
 467     0x1863df4aU, 0x82e51a31U, 0x60975133U, 0x4562537fU,
 468     0xe0b16477U, 0x84bb6baeU, 0x1cfe81a0U, 0x94f9082bU,
 469     0x58704868U, 0x198f45fdU, 0x8794de6cU, 0xb7527bf8U,
 470     0x23ab73d3U, 0xe2724b02U, 0x57e31f8fU, 0x2a6655abU,
 471     0x07b2eb28U, 0x032fb5c2U, 0x9a86c57bU, 0xa5d33708U,
 472     0xf2302887U, 0xb223bfa5U, 0xba02036aU, 0x5ced1682U,
 473     0x2b8acf1cU, 0x92a779b4U, 0xf0f307f2U, 0xa14e69e2U,
 474     0xcd65daf4U, 0xd50605beU, 0x1fd13462U, 0x8ac4a6feU,
 475     0x9d342e53U, 0xa0a2f355U, 0x32058ae1U, 0x75a4f6ebU,
 476     0x390b83ecU, 0xaa4060efU, 0x065e719fU, 0x51bd6e10U,
 477     0xf93e218aU, 0x3d96dd06U, 0xaedd3e05U, 0x464de6bdU,
 478     0xb591548dU, 0x0571c45dU, 0x6f0406d4U, 0xff605015U,
 479     0x241998fbU, 0x97d6bde9U, 0xcc894043U, 0x7767d99eU,
 480     0xbdb0e842U, 0x8807898bU, 0x38e7195bU, 0xdb79c8eeU,
 481     0x47a17c0aU, 0xe97c420fU, 0xc9f8841eU, 0x00000000U,
 482     0x83098086U, 0x48322bedU, 0xac1e1170U, 0x4e6c5a72U,
 483     0xfbfd0effU, 0x560f8538U, 0x1e3daed5U, 0x27362d39U,
 484     0x640a0fd9U, 0x21685ca6U, 0xd19b5b54U, 0x3a24362eU,
 485     0xb10c0a67U, 0x0f9357e7U, 0xd2b4ee96U, 0x9e1b9b91U,
 486     0x4f80c0c5U, 0xa261dc20U, 0x695a774bU, 0x161c121aU,
 487     0x0ae293baU, 0xe5c0a02aU, 0x433c22e0U, 0x1d121b17U,
 488     0x0b0e090dU, 0xadf28bc7U, 0xb92db6a8U, 0xc8141ea9U,
 489     0x8557f119U, 0x4caf7507U, 0xbbee99ddU, 0xfda37f60U,
 490     0x9ff70126U, 0xbc5c72f5U, 0xc544663bU, 0x345bfb7eU,
 491     0x768b4329U, 0xdccb23c6U, 0x68b6edfcU, 0x63b8e4f1U,
 492     0xcad731dcU, 0x10426385U, 0x40139722U, 0x2084c611U,
 493     0x7d854a24U, 0xf8d2bb3dU, 0x11aef932U, 0x6dc729a1U,
 494     0x4b1d9e2fU, 0xf3dcb230U, 0xec0d8652U, 0xd077c1e3U,
 495     0x6c2bb316U, 0x99a970b9U, 0xfa119448U, 0x2247e964U,
 496     0xc4a8fc8cU, 0x1aa0f03fU, 0xd8567d2cU, 0xef223390U,
 497     0xc787494eU, 0xc1d938d1U, 0xfe8ccaa2U, 0x3698d40bU,
 498     0xcfa6f581U, 0x28a57adeU, 0x26dab78eU, 0xa43fadbfU,
 499     0xe42c3a9dU, 0x0d507892U, 0x9b6a5fccU, 0x62547e46U,
 500     0xc2f68d13U, 0xe890d8b8U, 0x5e2e39f7U, 0xf582c3afU,
 501     0xbe9f5d80U, 0x7c69d093U, 0xa96fd52dU, 0xb3cf2512U,
 502     0x3bc8ac99U, 0xa710187dU, 0x6ee89c63U, 0x7bdb3bbbU,
 503     0x09cd2678U, 0xf46e5918U, 0x01ec9ab7U, 0xa8834f9aU,
 504     0x65e6956eU, 0x7eaaffe6U, 0x0821bccfU, 0xe6ef15e8U,
 505     0xd9bae79bU, 0xce4a6f36U, 0xd4ea9f09U, 0xd629b07cU,
 506     0xaf31a4b2U, 0x312a3f23U, 0x30c6a594U, 0xc035a266U,
 507     0x37744ebcU, 0xa6fc82caU, 0xb0e090d0U, 0x1533a7d8U,
 508     0x4af10498U, 0xf741ecdaU, 0x0e7fcd50U, 0x2f1791f6U,
 509     0x8d764dd6U, 0x4d43efb0U, 0x54ccaa4dU, 0xdfe49604U,
 510     0xe39ed1b5U, 0x1b4c6a88U, 0xb8c12c1fU, 0x7f466551U,
 511     0x049d5eeaU, 0x5d018c35U, 0x73fa8774U, 0x2efb0b41U,
 512     0x5ab3671dU, 0x5292dbd2U, 0x33e91056U, 0x136dd647U,
 513     0x8c9ad761U, 0x7a37a10cU, 0x8e59f814U, 0x89eb133cU,
 514     0xeecea927U, 0x35b761c9U, 0xede11ce5U, 0x3c7a47b1U,
 515     0x599cd2dfU, 0x3f55f273U, 0x791814ceU, 0xbf73c737U,
 516     0xea53f7cdU, 0x5b5ffdaaU, 0x14df3d6fU, 0x867844dbU,
 517     0x81caaff3U, 0x3eb968c4U, 0x2c382434U, 0x5fc2a340U,
 518     0x72161dc3U, 0x0cbce225U, 0x8b283c49U, 0x41ff0d95U,
 519     0x7139a801U, 0xde080cb3U, 0x9cd8b4e4U, 0x906456c1U,
 520     0x617bcb84U, 0x70d532b6U, 0x74486c5cU, 0x42d0b857U,
 521 };
 522 PROGMEM static const aes_u32 Td2[256] = {
 523     0xa75051f4U, 0x65537e41U, 0xa4c31a17U, 0x5e963a27U,
 524     0x6bcb3babU, 0x45f11f9dU, 0x58abacfaU, 0x03934be3U,
 525     0xfa552030U, 0x6df6ad76U, 0x769188ccU, 0x4c25f502U,
 526     0xd7fc4fe5U, 0xcbd7c52aU, 0x44802635U, 0xa38fb562U,
 527     0x5a49deb1U, 0x1b6725baU, 0x0e9845eaU, 0xc0e15dfeU,
 528     0x7502c32fU, 0xf012814cU, 0x97a38d46U, 0xf9c66bd3U,
 529     0x5fe7038fU, 0x9c951592U, 0x7aebbf6dU, 0x59da9552U,
 530     0x832dd4beU, 0x21d35874U, 0x692949e0U, 0xc8448ec9U,
 531     0x896a75c2U, 0x7978f48eU, 0x3e6b9958U, 0x71dd27b9U,
 532     0x4fb6bee1U, 0xad17f088U, 0xac66c920U, 0x3ab47dceU,
 533     0x4a1863dfU, 0x3182e51aU, 0x33609751U, 0x7f456253U,
 534     0x77e0b164U, 0xae84bb6bU, 0xa01cfe81U, 0x2b94f908U,
 535     0x68587048U, 0xfd198f45U, 0x6c8794deU, 0xf8b7527bU,
 536     0xd323ab73U, 0x02e2724bU, 0x8f57e31fU, 0xab2a6655U,
 537     0x2807b2ebU, 0xc2032fb5U, 0x7b9a86c5U, 0x08a5d337U,
 538     0x87f23028U, 0xa5b223bfU, 0x6aba0203U, 0x825ced16U,
 539     0x1c2b8acfU, 0xb492a779U, 0xf2f0f307U, 0xe2a14e69U,
 540     0xf4cd65daU, 0xbed50605U, 0x621fd134U, 0xfe8ac4a6U,
 541     0x539d342eU, 0x55a0a2f3U, 0xe132058aU, 0xeb75a4f6U,
 542     0xec390b83U, 0xefaa4060U, 0x9f065e71U, 0x1051bd6eU,
 543     0x8af93e21U, 0x063d96ddU, 0x05aedd3eU, 0xbd464de6U,
 544     0x8db59154U, 0x5d0571c4U, 0xd46f0406U, 0x15ff6050U,
 545     0xfb241998U, 0xe997d6bdU, 0x43cc8940U, 0x9e7767d9U,
 546     0x42bdb0e8U, 0x8b880789U, 0x5b38e719U, 0xeedb79c8U,
 547     0x0a47a17cU, 0x0fe97c42U, 0x1ec9f884U, 0x00000000U,
 548     0x86830980U, 0xed48322bU, 0x70ac1e11U, 0x724e6c5aU,
 549     0xfffbfd0eU, 0x38560f85U, 0xd51e3daeU, 0x3927362dU,
 550     0xd9640a0fU, 0xa621685cU, 0x54d19b5bU, 0x2e3a2436U,
 551     0x67b10c0aU, 0xe70f9357U, 0x96d2b4eeU, 0x919e1b9bU,
 552     0xc54f80c0U, 0x20a261dcU, 0x4b695a77U, 0x1a161c12U,
 553     0xba0ae293U, 0x2ae5c0a0U, 0xe0433c22U, 0x171d121bU,
 554     0x0d0b0e09U, 0xc7adf28bU, 0xa8b92db6U, 0xa9c8141eU,
 555     0x198557f1U, 0x074caf75U, 0xddbbee99U, 0x60fda37fU,
 556     0x269ff701U, 0xf5bc5c72U, 0x3bc54466U, 0x7e345bfbU,
 557     0x29768b43U, 0xc6dccb23U, 0xfc68b6edU, 0xf163b8e4U,
 558     0xdccad731U, 0x85104263U, 0x22401397U, 0x112084c6U,
 559     0x247d854aU, 0x3df8d2bbU, 0x3211aef9U, 0xa16dc729U,
 560     0x2f4b1d9eU, 0x30f3dcb2U, 0x52ec0d86U, 0xe3d077c1U,
 561     0x166c2bb3U, 0xb999a970U, 0x48fa1194U, 0x642247e9U,
 562     0x8cc4a8fcU, 0x3f1aa0f0U, 0x2cd8567dU, 0x90ef2233U,
 563     0x4ec78749U, 0xd1c1d938U, 0xa2fe8ccaU, 0x0b3698d4U,
 564     0x81cfa6f5U, 0xde28a57aU, 0x8e26dab7U, 0xbfa43fadU,
 565     0x9de42c3aU, 0x920d5078U, 0xcc9b6a5fU, 0x4662547eU,
 566     0x13c2f68dU, 0xb8e890d8U, 0xf75e2e39U, 0xaff582c3U,
 567     0x80be9f5dU, 0x937c69d0U, 0x2da96fd5U, 0x12b3cf25U,
 568     0x993bc8acU, 0x7da71018U, 0x636ee89cU, 0xbb7bdb3bU,
 569     0x7809cd26U, 0x18f46e59U, 0xb701ec9aU, 0x9aa8834fU,
 570     0x6e65e695U, 0xe67eaaffU, 0xcf0821bcU, 0xe8e6ef15U,
 571     0x9bd9bae7U, 0x36ce4a6fU, 0x09d4ea9fU, 0x7cd629b0U,
 572     0xb2af31a4U, 0x23312a3fU, 0x9430c6a5U, 0x66c035a2U,
 573     0xbc37744eU, 0xcaa6fc82U, 0xd0b0e090U, 0xd81533a7U,
 574     0x984af104U, 0xdaf741ecU, 0x500e7fcdU, 0xf62f1791U,
 575     0xd68d764dU, 0xb04d43efU, 0x4d54ccaaU, 0x04dfe496U,
 576     0xb5e39ed1U, 0x881b4c6aU, 0x1fb8c12cU, 0x517f4665U,
 577     0xea049d5eU, 0x355d018cU, 0x7473fa87U, 0x412efb0bU,
 578     0x1d5ab367U, 0xd25292dbU, 0x5633e910U, 0x47136dd6U,
 579     0x618c9ad7U, 0x0c7a37a1U, 0x148e59f8U, 0x3c89eb13U,
 580     0x27eecea9U, 0xc935b761U, 0xe5ede11cU, 0xb13c7a47U,
 581     0xdf599cd2U, 0x733f55f2U, 0xce791814U, 0x37bf73c7U,
 582     0xcdea53f7U, 0xaa5b5ffdU, 0x6f14df3dU, 0xdb867844U,
 583     0xf381caafU, 0xc43eb968U, 0x342c3824U, 0x405fc2a3U,
 584     0xc372161dU, 0x250cbce2U, 0x498b283cU, 0x9541ff0dU,
 585     0x017139a8U, 0xb3de080cU, 0xe49cd8b4U, 0xc1906456U,
 586     0x84617bcbU, 0xb670d532U, 0x5c74486cU, 0x5742d0b8U,
 587 };
 588 PROGMEM static const aes_u32 Td3[256] = {
 589     0xf4a75051U, 0x4165537eU, 0x17a4c31aU, 0x275e963aU,
 590     0xab6bcb3bU, 0x9d45f11fU, 0xfa58abacU, 0xe303934bU,
 591     0x30fa5520U, 0x766df6adU, 0xcc769188U, 0x024c25f5U,
 592     0xe5d7fc4fU, 0x2acbd7c5U, 0x35448026U, 0x62a38fb5U,
 593     0xb15a49deU, 0xba1b6725U, 0xea0e9845U, 0xfec0e15dU,
 594     0x2f7502c3U, 0x4cf01281U, 0x4697a38dU, 0xd3f9c66bU,
 595     0x8f5fe703U, 0x929c9515U, 0x6d7aebbfU, 0x5259da95U,
 596     0xbe832dd4U, 0x7421d358U, 0xe0692949U, 0xc9c8448eU,
 597     0xc2896a75U, 0x8e7978f4U, 0x583e6b99U, 0xb971dd27U,
 598     0xe14fb6beU, 0x88ad17f0U, 0x20ac66c9U, 0xce3ab47dU,
 599     0xdf4a1863U, 0x1a3182e5U, 0x51336097U, 0x537f4562U,
 600     0x6477e0b1U, 0x6bae84bbU, 0x81a01cfeU, 0x082b94f9U,
 601     0x48685870U, 0x45fd198fU, 0xde6c8794U, 0x7bf8b752U,
 602     0x73d323abU, 0x4b02e272U, 0x1f8f57e3U, 0x55ab2a66U,
 603     0xeb2807b2U, 0xb5c2032fU, 0xc57b9a86U, 0x3708a5d3U,
 604     0x2887f230U, 0xbfa5b223U, 0x036aba02U, 0x16825cedU,
 605     0xcf1c2b8aU, 0x79b492a7U, 0x07f2f0f3U, 0x69e2a14eU,
 606     0xdaf4cd65U, 0x05bed506U, 0x34621fd1U, 0xa6fe8ac4U,
 607     0x2e539d34U, 0xf355a0a2U, 0x8ae13205U, 0xf6eb75a4U,
 608     0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU,
 609     0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU,
 610     0x548db591U, 0xc45d0571U, 0x06d46f04U, 0x5015ff60U,
 611     0x98fb2419U, 0xbde997d6U, 0x4043cc89U, 0xd99e7767U,
 612     0xe842bdb0U, 0x898b8807U, 0x195b38e7U, 0xc8eedb79U,
 613     0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U,
 614     0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU,
 615     0x0efffbfdU, 0x8538560fU, 0xaed51e3dU, 0x2d392736U,
 616     0x0fd9640aU, 0x5ca62168U, 0x5b54d19bU, 0x362e3a24U,
 617     0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, 0x9b919e1bU,
 618     0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU,
 619     0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U,
 620     0x090d0b0eU, 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U,
 621     0xf1198557U, 0x75074cafU, 0x99ddbbeeU, 0x7f60fda3U,
 622     0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, 0xfb7e345bU,
 623     0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U,
 624     0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U,
 625     0x4a247d85U, 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U,
 626     0x9e2f4b1dU, 0xb230f3dcU, 0x8652ec0dU, 0xc1e3d077U,
 627     0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, 0xe9642247U,
 628     0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U,
 629     0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U,
 630     0xf581cfa6U, 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU,
 631     0x3a9de42cU, 0x78920d50U, 0x5fcc9b6aU, 0x7e466254U,
 632     0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, 0xc3aff582U,
 633     0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU,
 634     0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU,
 635     0x267809cdU, 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U,
 636     0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU,
 637     0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U,
 638     0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U,
 639     0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U,
 640     0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U,
 641     0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U,
 642     0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U,
 643     0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU,
 644     0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU,
 645     0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU,
 646     0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU,
 647     0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U,
 648     0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U,
 649     0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U,
 650     0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU,
 651     0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U,
 652     0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U,
 653 };
 654 PROGMEM static const aes_u32 Td4[256] = {
 655     0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U,
 656     0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U,
 657     0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU,
 658     0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU,
 659     0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U,
 660     0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U,
 661     0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U,
 662     0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU,
 663     0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U,
 664     0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU,
 665     0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU,
 666     0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU,
 667     0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U,
 668     0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U,
 669     0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U,
 670     0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U,
 671     0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U,
 672     0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U,
 673     0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU,
 674     0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U,
 675     0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U,
 676     0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU,
 677     0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U,
 678     0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U,
 679     0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U,
 680     0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU,
 681     0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U,
 682     0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U,
 683     0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU,
 684     0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U,
 685     0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U,
 686     0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU,
 687     0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U,
 688     0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU,
 689     0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU,
 690     0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U,
 691     0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U,
 692     0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U,
 693     0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U,
 694     0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU,
 695     0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U,
 696     0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U,
 697     0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU,
 698     0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU,
 699     0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU,
 700     0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U,
 701     0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU,
 702     0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U,
 703     0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U,
 704     0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U,
 705     0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U,
 706     0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU,
 707     0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U,
 708     0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU,
 709     0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU,
 710     0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU,
 711     0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU,
 712     0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U,
 713     0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU,
 714     0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U,
 715     0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU,
 716     0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U,
 717     0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U,
 718     0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU,
 719 };
 720
 721 #endif /* WITH_AES_DECRYPT */
 722
 723 PROGMEM static const aes_u32 rcon[] = {
 724         0x01000000, 0x02000000, 0x04000000, 0x08000000,
 725         0x10000000, 0x20000000, 0x40000000, 0x80000000,
 726         0x1B000000, 0x36000000, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
 727 };
 728
 729 #define GETU32(pt) (((aes_u32)(pt)[0] << 24) ^ ((aes_u32)(pt)[1] << 16) ^ ((aes_u32)(pt)[2] <<  8) ^ ((aes_u32)(pt)[3]))
 730 #define PUTU32(ct, st) { (ct)[0] = (aes_u8)((st) >> 24); (ct)[1] = (aes_u8)((st) >> 16); (ct)[2] = (aes_u8)((st) >>  8); (ct)[3] = (aes_u8)(st); }
 731
 732 /**
 733  * Expand the cipher key into the encryption key schedule.
 734  *
 735  * @return      the number of rounds for the given cipher key size.
 736  */
 737 int
 738 rijndaelKeySetupEnc(aes_u32 rk[/*4*(Nr + 1)*/], const aes_u8 cipherKey[], int keyBits)
 739 {
 740         int i = 0;
 741         aes_u32 temp;
 742
 743         rk[0] = GETU32(cipherKey     );
 744         rk[1] = GETU32(cipherKey +  4);
 745         rk[2] = GETU32(cipherKey +  8);
 746         rk[3] = GETU32(cipherKey + 12);
 747         if (keyBits == 128) {
 748                 for (;;) {
 749                         temp  = rk[3];
 750                         rk[4] = rk[0] ^
 751                                 (pgm_read_dword(&Te4[(temp >> 16) &0xff ]) & 0xff000000) ^
 752                                 (pgm_read_dword(&Te4[(temp >>  8) & 0xff]) & 0x00ff0000) ^
 753                                 (pgm_read_dword(&Te4[(temp      ) & 0xff]) & 0x0000ff00) ^
 754                                 (pgm_read_dword(&Te4[(temp >> 24)       ]) & 0x000000ff) ^
 755                                 (pgm_read_dword(&rcon[i]));
 756                         rk[5] = rk[1] ^ rk[4];
 757                         rk[6] = rk[2] ^ rk[5];
 758                         rk[7] = rk[3] ^ rk[6];
 759                         if (++i == 10) {
 760                                 return 10;
 761                         }
 762                         rk += 4;
 763                 }
 764         }
 765         rk[4] = GETU32(cipherKey + 16);
 766         rk[5] = GETU32(cipherKey + 20);
 767         if (keyBits == 192) {
 768                 for (;;) {
 769                         temp = rk[ 5];
 770                         rk[ 6] = rk[ 0] ^
 771                                 (pgm_read_dword(&Te4[(temp >> 16) & 0xff]) & 0xff000000) ^
 772                                 (pgm_read_dword(&Te4[(temp >>  8) & 0xff]) & 0x00ff0000) ^
 773                                 (pgm_read_dword(&Te4[(temp      ) & 0xff]) & 0x0000ff00) ^
 774                                 (pgm_read_dword(&Te4[(temp >> 24)       ]) & 0x000000ff) ^
 775                                 (pgm_read_dword(&rcon[i]));
 776                         rk[ 7] = rk[ 1] ^ rk[ 6];
 777                         rk[ 8] = rk[ 2] ^ rk[ 7];
 778                         rk[ 9] = rk[ 3] ^ rk[ 8];
 779                         if (++i == 8) {
 780                                 return 12;
 781                         }
 782                         rk[10] = rk[ 4] ^ rk[ 9];
 783                         rk[11] = rk[ 5] ^ rk[10];
 784                         rk += 6;
 785                 }
 786         }
 787         rk[6] = GETU32(cipherKey + 24);
 788         rk[7] = GETU32(cipherKey + 28);
 789         if (keyBits == 256) {
 790                 for (;;) {
 791                         temp = rk[ 7];
 792                         rk[ 8] = rk[ 0] ^
 793                                 (pgm_read_dword(&Te4[(temp >> 16) & 0xff]) & 0xff000000) ^
 794                                 (pgm_read_dword(&Te4[(temp >>  8) & 0xff]) & 0x00ff0000) ^
 795                                 (pgm_read_dword(&Te4[(temp      ) & 0xff]) & 0x0000ff00) ^
 796                                 (pgm_read_dword(&Te4[(temp >> 24)       ]) & 0x000000ff) ^
 797                                 (pgm_read_dword(&rcon[i]));
 798                         rk[ 9] = rk[ 1] ^ rk[ 8];
 799                         rk[10] = rk[ 2] ^ rk[ 9];
 800                         rk[11] = rk[ 3] ^ rk[10];
 801                         if (++i == 7) {
 802                                 return 14;
 803                         }
 804                         temp = rk[11];
 805                         rk[12] = rk[ 4] ^
 806                                 (pgm_read_dword(&Te4[(temp >> 24)       ]) & 0xff000000) ^
 807                                 (pgm_read_dword(&Te4[(temp >> 16) & 0xff]) & 0x00ff0000) ^
 808                                 (pgm_read_dword(&Te4[(temp >>  8) & 0xff]) & 0x0000ff00) ^
 809                                 (pgm_read_dword(&Te4[(temp      ) & 0xff]) & 0x000000ff);
 810                         rk[13] = rk[ 5] ^ rk[12];
 811                         rk[14] = rk[ 6] ^ rk[13];
 812                         rk[15] = rk[ 7] ^ rk[14];
 813                         rk += 8;
 814                 }
 815         }
 816         return 0;
 817 }
 818
 819 #ifdef WITH_AES_DECRYPT
 820 /**
 821  * Expand the cipher key into the decryption key schedule.
 822  *
 823  * @return      the number of rounds for the given cipher key size.
 824  */
 825 int
 826 rijndaelKeySetupDec(aes_u32 rk[/*4*(Nr + 1)*/], const aes_u8 cipherKey[], int keyBits)
 827 {
 828         int Nr, i, j;
 829         aes_u32 temp;
 830
 831         /* expand the cipher key: */
 832         Nr = rijndaelKeySetupEnc(rk, cipherKey, keyBits);
 833
 834         /* invert the order of the round keys: */
 835         for (i = 0, j = 4*Nr; i < j; i += 4, j -= 4) {
 836                 temp = rk[i    ]; rk[i    ] = rk[j    ]; rk[j    ] = temp;
 837                 temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp;
 838                 temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp;
 839                 temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp;
 840         }
 841         /* apply the inverse MixColumn transform to all round keys but the first and the last: */
 842         for (i = 1; i < Nr; i++) {
 843                 rk += 4;
 844                 rk[0] =
 845                         pgm_read_dword(&Td0[pgm_read_dword(&Te4[(rk[0] >> 24)       ]) & 0xff]) ^
 846                         pgm_read_dword(&Td1[pgm_read_dword(&Te4[(rk[0] >> 16) & 0xff]) & 0xff]) ^
 847                         pgm_read_dword(&Td2[pgm_read_dword(&Te4[(rk[0] >>  8) & 0xff]) & 0xff]) ^
 848                         pgm_read_dword(&Td3[pgm_read_dword(&Te4[(rk[0]      ) & 0xff]) & 0xff]);
 849                 rk[1] =
 850                         pgm_read_dword(&Td0[pgm_read_dword(&Te4[(rk[1] >> 24)       ]) & 0xff]) ^
 851                         pgm_read_dword(&Td1[pgm_read_dword(&Te4[(rk[1] >> 16) & 0xff]) & 0xff]) ^
 852                         pgm_read_dword(&Td2[pgm_read_dword(&Te4[(rk[1] >>  8) & 0xff]) & 0xff]) ^
 853                         pgm_read_dword(&Td3[pgm_read_dword(&Te4[(rk[1]      ) & 0xff]) & 0xff]);
 854                 rk[2] =
 855                         pgm_read_dword(&Td0[pgm_read_dword(&Te4[(rk[2] >> 24)       ]) & 0xff]) ^
 856                         pgm_read_dword(&Td1[pgm_read_dword(&Te4[(rk[2] >> 16) & 0xff]) & 0xff]) ^
 857                         pgm_read_dword(&Td2[pgm_read_dword(&Te4[(rk[2] >>  8) & 0xff]) & 0xff]) ^
 858                         pgm_read_dword(&Td3[pgm_read_dword(&Te4[(rk[2]      ) & 0xff]) & 0xff]);
 859                 rk[3] =
 860                         pgm_read_dword(&Td0[pgm_read_dword(&Te4[(rk[3] >> 24)       ]) & 0xff]) ^
 861                         pgm_read_dword(&Td1[pgm_read_dword(&Te4[(rk[3] >> 16) & 0xff]) & 0xff]) ^
 862                         pgm_read_dword(&Td2[pgm_read_dword(&Te4[(rk[3] >>  8) & 0xff]) & 0xff]) ^
 863                         pgm_read_dword(&Td3[pgm_read_dword(&Te4[(rk[3]      ) & 0xff]) & 0xff]);
 864         }
 865         return Nr;
 866 }
 867 #endif
 868
 869 void
 870 rijndaelEncrypt(const aes_u32 rk[/*4*(Nr + 1)*/], int Nr, const aes_u8 pt[16],
 871     aes_u8 ct[16])
 872 {
 873         aes_u32 s0, s1, s2, s3, t0, t1, t2, t3;
 874 #ifndef FULL_UNROLL
 875     int r;
 876 #endif /* ?FULL_UNROLL */
 877
 878     /*
 879          * map byte array block to cipher state
 880          * and add initial round key:
 881          */
 882         s0 = GETU32(pt     ) ^ rk[0];
 883         s1 = GETU32(pt +  4) ^ rk[1];
 884         s2 = GETU32(pt +  8) ^ rk[2];
 885         s3 = GETU32(pt + 12) ^ rk[3];
 886 #ifdef FULL_UNROLL
 887     /* round 1: */
 888         t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[ 4];
 889         t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[ 5];
 890         t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[ 6];
 891         t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[ 7];
 892         /* round 2: */
 893         s0 = pgm_read_dword(&Te0[t0 >> 24]) ^ pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t3 & 0xff]) ^ rk[ 8];
 894         s1 = pgm_read_dword(&Te0[t1 >> 24]) ^ pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t0 & 0xff]) ^ rk[ 9];
 895         s2 = pgm_read_dword(&Te0[t2 >> 24]) ^ pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t1 & 0xff]) ^ rk[10];
 896         s3 = pgm_read_dword(&Te0[t3 >> 24]) ^ pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t2 & 0xff]) ^ rk[11];
 897     /* round 3: */
 898         t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[12];
 899         t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[13];
 900         t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[14];
 901         t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[15];
 902         /* round 4: */
 903         s0 = pgm_read_dword(&Te0[t0 >> 24]) ^ pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t3 & 0xff]) ^ rk[16];
 904         s1 = pgm_read_dword(&Te0[t1 >> 24]) ^ pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t0 & 0xff]) ^ rk[17];
 905         s2 = pgm_read_dword(&Te0[t2 >> 24]) ^ pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t1 & 0xff]) ^ rk[18];
 906         s3 = pgm_read_dword(&Te0[t3 >> 24]) ^ pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t2 & 0xff]) ^ rk[19];
 907     /* round 5: */
 908         t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[20];
 909         t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[21];
 910         t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[22];
 911         t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[23];
 912         /* round 6: */
 913         s0 = pgm_read_dword(&Te0[t0 >> 24]) ^ pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t3 & 0xff]) ^ rk[24];
 914         s1 = pgm_read_dword(&Te0[t1 >> 24]) ^ pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t0 & 0xff]) ^ rk[25];
 915         s2 = pgm_read_dword(&Te0[t2 >> 24]) ^ pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t1 & 0xff]) ^ rk[26];
 916         s3 = pgm_read_dword(&Te0[t3 >> 24]) ^ pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t2 & 0xff]) ^ rk[27];
 917     /* round 7: */
 918         t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[28];
 919         t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[29];
 920         t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[30];
 921         t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[31];
 922         /* round 8: */
 923         s0 = pgm_read_dword(&Te0[t0 >> 24]) ^ pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t3 & 0xff]) ^ rk[32];
 924         s1 = pgm_read_dword(&Te0[t1 >> 24]) ^ pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t0 & 0xff]) ^ rk[33];
 925         s2 = pgm_read_dword(&Te0[t2 >> 24]) ^ pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t1 & 0xff]) ^ rk[34];
 926         s3 = pgm_read_dword(&Te0[t3 >> 24]) ^ pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t2 & 0xff]) ^ rk[35];
 927     /* round 9: */
 928         t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[36];
 929         t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[37];
 930         t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[38];
 931         t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[39];
 932     if (Nr > 10) {
 933         /* round 10: */
 934         s0 = pgm_read_dword(&Te0[t0 >> 24]) ^ pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t3 & 0xff]) ^ rk[40];
 935         s1 = pgm_read_dword(&Te0[t1 >> 24]) ^ pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t0 & 0xff]) ^ rk[41];
 936         s2 = pgm_read_dword(&Te0[t2 >> 24]) ^ pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t1 & 0xff]) ^ rk[42];
 937         s3 = pgm_read_dword(&Te0[t3 >> 24]) ^ pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t2 & 0xff]) ^ rk[43];
 938         /* round 11: */
 939         t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[44];
 940         t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[45];
 941         t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[46];
 942         t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[47];
 943         if (Nr > 12) {
 944             /* round 12: */
 945             s0 = pgm_read_dword(&Te0[t0 >> 24]) ^ pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t3 & 0xff]) ^ rk[48];
 946             s1 = pgm_read_dword(&Te0[t1 >> 24]) ^ pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t0 & 0xff]) ^ rk[49];
 947             s2 = pgm_read_dword(&Te0[t2 >> 24]) ^ pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t1 & 0xff]) ^ rk[50];
 948             s3 = pgm_read_dword(&Te0[t3 >> 24]) ^ pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[t2 & 0xff]) ^ rk[51];
 949             /* round 13: */
 950             t0 = pgm_read_dword(&Te0[s0 >> 24]) ^ pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s3 & 0xff]) ^ rk[52];
 951             t1 = pgm_read_dword(&Te0[s1 >> 24]) ^ pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s0 & 0xff]) ^ rk[53];
 952             t2 = pgm_read_dword(&Te0[s2 >> 24]) ^ pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s1 & 0xff]) ^ rk[54];
 953             t3 = pgm_read_dword(&Te0[s3 >> 24]) ^ pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Te3[s2 & 0xff]) ^ rk[55];
 954         }
 955     }
 956     rk += Nr << 2;
 957 #else  /* !FULL_UNROLL */
 958     /*
 959          * Nr - 1 full rounds:
 960          */
 961     r = Nr >> 1;
 962     for (;;) {
 963         t0 =
 964             pgm_read_dword(&Te0[(s0 >> 24)       ]) ^
 965             pgm_read_dword(&Te1[(s1 >> 16) & 0xff]) ^
 966             pgm_read_dword(&Te2[(s2 >>  8) & 0xff]) ^
 967             pgm_read_dword(&Te3[(s3      ) & 0xff]) ^
 968             rk[4];
 969         t1 =
 970             pgm_read_dword(&Te0[(s1 >> 24)       ]) ^
 971             pgm_read_dword(&Te1[(s2 >> 16) & 0xff]) ^
 972             pgm_read_dword(&Te2[(s3 >>  8) & 0xff]) ^
 973             pgm_read_dword(&Te3[(s0      ) & 0xff]) ^
 974             rk[5];
 975         t2 =
 976             pgm_read_dword(&Te0[(s2 >> 24)       ]) ^
 977             pgm_read_dword(&Te1[(s3 >> 16) & 0xff]) ^
 978             pgm_read_dword(&Te2[(s0 >>  8) & 0xff]) ^
 979             pgm_read_dword(&Te3[(s1      ) & 0xff]) ^
 980             rk[6];
 981         t3 =
 982             pgm_read_dword(&Te0[(s3 >> 24)       ]) ^
 983             pgm_read_dword(&Te1[(s0 >> 16) & 0xff]) ^
 984             pgm_read_dword(&Te2[(s1 >>  8) & 0xff]) ^
 985             pgm_read_dword(&Te3[(s2      ) & 0xff]) ^
 986             rk[7];
 987
 988         rk += 8;
 989         if (--r == 0) {
 990             break;
 991         }
 992
 993         s0 =
 994             pgm_read_dword(&Te0[(t0 >> 24)       ]) ^
 995             pgm_read_dword(&Te1[(t1 >> 16) & 0xff]) ^
 996             pgm_read_dword(&Te2[(t2 >>  8) & 0xff]) ^
 997             pgm_read_dword(&Te3[(t3      ) & 0xff]) ^
 998             rk[0];
 999         s1 =
1000             pgm_read_dword(&Te0[(t1 >> 24)       ]) ^
1001             pgm_read_dword(&Te1[(t2 >> 16) & 0xff]) ^
1002             pgm_read_dword(&Te2[(t3 >>  8) & 0xff]) ^
1003             pgm_read_dword(&Te3[(t0      ) & 0xff]) ^
1004             rk[1];
1005         s2 =
1006             pgm_read_dword(&Te0[(t2 >> 24)       ]) ^
1007             pgm_read_dword(&Te1[(t3 >> 16) & 0xff]) ^
1008             pgm_read_dword(&Te2[(t0 >>  8) & 0xff]) ^
1009             pgm_read_dword(&Te3[(t1      ) & 0xff]) ^
1010             rk[2];
1011         s3 =
1012             pgm_read_dword(&Te0[(t3 >> 24)       ]) ^
1013             pgm_read_dword(&Te1[(t0 >> 16) & 0xff]) ^
1014             pgm_read_dword(&Te2[(t1 >>  8) & 0xff]) ^
1015             pgm_read_dword(&Te3[(t2      ) & 0xff]) ^
1016             rk[3];
1017     }
1018 #endif /* ?FULL_UNROLL */
1019     /*
1020          * apply last round and
1021          * map cipher state to byte array block:
1022          */
1023         s0 =
1024                 (pgm_read_dword(&Te4[(t0 >> 24)       ]) & 0xff000000) ^
1025                 (pgm_read_dword(&Te4[(t1 >> 16) & 0xff]) & 0x00ff0000) ^
1026                 (pgm_read_dword(&Te4[(t2 >>  8) & 0xff]) & 0x0000ff00) ^
1027                 (pgm_read_dword(&Te4[(t3      ) & 0xff]) & 0x000000ff) ^
1028                 rk[0];
1029         PUTU32(ct     , s0);
1030         s1 =
1031                 (pgm_read_dword(&Te4[(t1 >> 24)       ]) & 0xff000000) ^
1032                 (pgm_read_dword(&Te4[(t2 >> 16) & 0xff]) & 0x00ff0000) ^
1033                 (pgm_read_dword(&Te4[(t3 >>  8) & 0xff]) & 0x0000ff00) ^
1034                 (pgm_read_dword(&Te4[(t0      ) & 0xff]) & 0x000000ff) ^
1035                 rk[1];
1036         PUTU32(ct +  4, s1);
1037         s2 =
1038                 (pgm_read_dword(&Te4[(t2 >> 24)       ]) & 0xff000000) ^
1039                 (pgm_read_dword(&Te4[(t3 >> 16) & 0xff]) & 0x00ff0000) ^
1040                 (pgm_read_dword(&Te4[(t0 >>  8) & 0xff]) & 0x0000ff00) ^
1041                 (pgm_read_dword(&Te4[(t1      ) & 0xff]) & 0x000000ff) ^
1042                 rk[2];
1043         PUTU32(ct +  8, s2);
1044         s3 =
1045                 (pgm_read_dword(&Te4[(t3 >> 24)       ]) & 0xff000000) ^
1046                 (pgm_read_dword(&Te4[(t0 >> 16) & 0xff]) & 0x00ff0000) ^
1047                 (pgm_read_dword(&Te4[(t1 >>  8) & 0xff]) & 0x0000ff00) ^
1048                 (pgm_read_dword(&Te4[(t2      ) & 0xff]) & 0x000000ff) ^
1049                 rk[3];
1050         PUTU32(ct + 12, s3);
1051 }
1052
1053 #ifdef WITH_AES_DECRYPT
1054 static void
1055 rijndaelDecrypt(const aes_u32 rk[/*4*(Nr + 1)*/], int Nr, const aes_u8 ct[16],
1056     aes_u8 pt[16])
1057 {
1058         aes_u32 s0, s1, s2, s3, t0, t1, t2, t3;
1059 #ifndef FULL_UNROLL
1060     int r;
1061 #endif /* ?FULL_UNROLL */
1062
1063     /*
1064          * map byte array block to cipher state
1065          * and add initial round key:
1066          */
1067     s0 = GETU32(ct     ) ^ rk[0];
1068     s1 = GETU32(ct +  4) ^ rk[1];
1069     s2 = GETU32(ct +  8) ^ rk[2];
1070     s3 = GETU32(ct + 12) ^ rk[3];
1071 #ifdef FULL_UNROLL
1072     /* round 1: */
1073     t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[ 4];
1074     t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[ 5];
1075     t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[ 6];
1076     t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[ 7];
1077     /* round 2: */
1078     s0 = pgm_read_dword(&Td0[t0 >> 24]) ^ pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t1 & 0xff]) ^ rk[ 8];
1079     s1 = pgm_read_dword(&Td0[t1 >> 24]) ^ pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t2 & 0xff]) ^ rk[ 9];
1080     s2 = pgm_read_dword(&Td0[t2 >> 24]) ^ pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t3 & 0xff]) ^ rk[10];
1081     s3 = pgm_read_dword(&Td0[t3 >> 24]) ^ pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t0 & 0xff]) ^ rk[11];
1082     /* round 3: */
1083     t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[12];
1084     t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[13];
1085     t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[14];
1086     t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[15];
1087     /* round 4: */
1088     s0 = pgm_read_dword(&Td0[t0 >> 24]) ^ pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t1 & 0xff]) ^ rk[16];
1089     s1 = pgm_read_dword(&Td0[t1 >> 24]) ^ pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t2 & 0xff]) ^ rk[17];
1090     s2 = pgm_read_dword(&Td0[t2 >> 24]) ^ pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t3 & 0xff]) ^ rk[18];
1091     s3 = pgm_read_dword(&Td0[t3 >> 24]) ^ pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t0 & 0xff]) ^ rk[19];
1092     /* round 5: */
1093     t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[20];
1094     t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[21];
1095     t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[22];
1096     t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[23];
1097     /* round 6: */
1098     s0 = pgm_read_dword(&Td0[t0 >> 24]) ^ pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t1 & 0xff]) ^ rk[24];
1099     s1 = pgm_read_dword(&Td0[t1 >> 24]) ^ pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t2 & 0xff]) ^ rk[25];
1100     s2 = pgm_read_dword(&Td0[t2 >> 24]) ^ pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t3 & 0xff]) ^ rk[26];
1101     s3 = pgm_read_dword(&Td0[t3 >> 24]) ^ pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t0 & 0xff]) ^ rk[27];
1102     /* round 7: */
1103     t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[28];
1104     t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[29];
1105     t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[30];
1106     t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[31];
1107     /* round 8: */
1108     s0 = pgm_read_dword(&Td0[t0 >> 24]) ^ pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t1 & 0xff]) ^ rk[32];
1109     s1 = pgm_read_dword(&Td0[t1 >> 24]) ^ pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t2 & 0xff]) ^ rk[33];
1110     s2 = pgm_read_dword(&Td0[t2 >> 24]) ^ pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t3 & 0xff]) ^ rk[34];
1111     s3 = pgm_read_dword(&Td0[t3 >> 24]) ^ pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t0 & 0xff]) ^ rk[35];
1112     /* round 9: */
1113     t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[36];
1114     t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[37];
1115     t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[38];
1116     t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[39];
1117     if (Nr > 10) {
1118         /* round 10: */
1119         s0 = pgm_read_dword(&Td0[t0 >> 24]) ^ pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t1 & 0xff]) ^ rk[40];
1120         s1 = pgm_read_dword(&Td0[t1 >> 24]) ^ pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t2 & 0xff]) ^ rk[41];
1121         s2 = pgm_read_dword(&Td0[t2 >> 24]) ^ pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t3 & 0xff]) ^ rk[42];
1122         s3 = pgm_read_dword(&Td0[t3 >> 24]) ^ pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t0 & 0xff]) ^ rk[43];
1123         /* round 11: */
1124         t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[44];
1125         t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[45];
1126         t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[46];
1127         t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[47];
1128         if (Nr > 12) {
1129             /* round 12: */
1130             s0 = pgm_read_dword(&Td0[t0 >> 24]) ^ pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t1 & 0xff]) ^ rk[48];
1131             s1 = pgm_read_dword(&Td0[t1 >> 24]) ^ pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t2 & 0xff]) ^ rk[49];
1132             s2 = pgm_read_dword(&Td0[t2 >> 24]) ^ pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t3 & 0xff]) ^ rk[50];
1133             s3 = pgm_read_dword(&Td0[t3 >> 24]) ^ pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[t0 & 0xff]) ^ rk[51];
1134             /* round 13: */
1135             t0 = pgm_read_dword(&Td0[s0 >> 24]) ^ pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s1 & 0xff]) ^ rk[52];
1136             t1 = pgm_read_dword(&Td0[s1 >> 24]) ^ pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s2 & 0xff]) ^ rk[53];
1137             t2 = pgm_read_dword(&Td0[s2 >> 24]) ^ pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s3 & 0xff]) ^ rk[54];
1138             t3 = pgm_read_dword(&Td0[s3 >> 24]) ^ pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^ pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^ pgm_read_dword(&Td3[s0 & 0xff]) ^ rk[55];
1139         }
1140     }
1141         rk += Nr << 2;
1142 #else  /* !FULL_UNROLL */
1143     /*
1144      * Nr - 1 full rounds:
1145      */
1146     r = Nr >> 1;
1147     for (;;) {
1148         t0 =
1149             pgm_read_dword(&Td0[(s0 >> 24)       ]) ^
1150             pgm_read_dword(&Td1[(s3 >> 16) & 0xff]) ^
1151             pgm_read_dword(&Td2[(s2 >>  8) & 0xff]) ^
1152             pgm_read_dword(&Td3[(s1      ) & 0xff]) ^
1153             rk[4];
1154         t1 =
1155             pgm_read_dword(&Td0[(s1 >> 24)       ]) ^
1156             pgm_read_dword(&Td1[(s0 >> 16) & 0xff]) ^
1157             pgm_read_dword(&Td2[(s3 >>  8) & 0xff]) ^
1158             pgm_read_dword(&Td3[(s2      ) & 0xff]) ^
1159             rk[5];
1160         t2 =
1161             pgm_read_dword(&Td0[(s2 >> 24)       ]) ^
1162             pgm_read_dword(&Td1[(s1 >> 16) & 0xff]) ^
1163             pgm_read_dword(&Td2[(s0 >>  8) & 0xff]) ^
1164             pgm_read_dword(&Td3[(s3      ) & 0xff]) ^
1165             rk[6];
1166         t3 =
1167             pgm_read_dword(&Td0[(s3 >> 24)       ]) ^
1168             pgm_read_dword(&Td1[(s2 >> 16) & 0xff]) ^
1169             pgm_read_dword(&Td2[(s1 >>  8) & 0xff]) ^
1170             pgm_read_dword(&Td3[(s0      ) & 0xff]) ^
1171             rk[7];
1172
1173         rk += 8;
1174         if (--r == 0) {
1175             break;
1176         }
1177
1178         s0 =
1179             pgm_read_dword(&Td0[(t0 >> 24)       ]) ^
1180             pgm_read_dword(&Td1[(t3 >> 16) & 0xff]) ^
1181             pgm_read_dword(&Td2[(t2 >>  8) & 0xff]) ^
1182             pgm_read_dword(&Td3[(t1      ) & 0xff]) ^
1183             rk[0];
1184         s1 =
1185             pgm_read_dword(&Td0[(t1 >> 24)       ]) ^
1186             pgm_read_dword(&Td1[(t0 >> 16) & 0xff]) ^
1187             pgm_read_dword(&Td2[(t3 >>  8) & 0xff]) ^
1188             pgm_read_dword(&Td3[(t2      ) & 0xff]) ^
1189             rk[1];
1190         s2 =
1191             pgm_read_dword(&Td0[(t2 >> 24)       ]) ^
1192             pgm_read_dword(&Td1[(t1 >> 16) & 0xff]) ^
1193             pgm_read_dword(&Td2[(t0 >>  8) & 0xff]) ^
1194             pgm_read_dword(&Td3[(t3      ) & 0xff]) ^
1195             rk[2];
1196         s3 =
1197             pgm_read_dword(&Td0[(t3 >> 24)       ]) ^
1198             pgm_read_dword(&Td1[(t2 >> 16) & 0xff]) ^
1199             pgm_read_dword(&Td2[(t1 >>  8) & 0xff]) ^
1200             pgm_read_dword(&Td3[(t0      ) & 0xff]) ^
1201             rk[3];
1202     }
1203 #endif /* ?FULL_UNROLL */
1204     /*
1205          * apply last round and
1206          * map cipher state to byte array block:
1207          */
1208         s0 =
1209                 (pgm_read_dword(&Td4[(t0 >> 24)       ]) & 0xff000000) ^
1210                 (pgm_read_dword(&Td4[(t3 >> 16) & 0xff]) & 0x00ff0000) ^
1211                 (pgm_read_dword(&Td4[(t2 >>  8) & 0xff]) & 0x0000ff00) ^
1212                 (pgm_read_dword(&Td4[(t1      ) & 0xff]) & 0x000000ff) ^
1213                 rk[0];
1214         PUTU32(pt     , s0);
1215         s1 =
1216                 (pgm_read_dword(&Td4[(t1 >> 24)       ]) & 0xff000000) ^
1217                 (pgm_read_dword(&Td4[(t0 >> 16) & 0xff]) & 0x00ff0000) ^
1218                 (pgm_read_dword(&Td4[(t3 >>  8) & 0xff]) & 0x0000ff00) ^
1219                 (pgm_read_dword(&Td4[(t2      ) & 0xff]) & 0x000000ff) ^
1220                 rk[1];
1221         PUTU32(pt +  4, s1);
1222         s2 =
1223                 (pgm_read_dword(&Td4[(t2 >> 24)       ]) & 0xff000000) ^
1224                 (pgm_read_dword(&Td4[(t1 >> 16) & 0xff]) & 0x00ff0000) ^
1225                 (pgm_read_dword(&Td4[(t0 >>  8) & 0xff]) & 0x0000ff00) ^
1226                 (pgm_read_dword(&Td4[(t3      ) & 0xff]) & 0x000000ff) ^
1227                 rk[2];
1228         PUTU32(pt +  8, s2);
1229         s3 =
1230                 (pgm_read_dword(&Td4[(t3 >> 24)       ]) & 0xff000000) ^
1231                 (pgm_read_dword(&Td4[(t2 >> 16) & 0xff]) & 0x00ff0000) ^
1232                 (pgm_read_dword(&Td4[(t1 >>  8) & 0xff]) & 0x0000ff00) ^
1233                 (pgm_read_dword(&Td4[(t0      ) & 0xff]) & 0x000000ff) ^
1234                 rk[3];
1235         PUTU32(pt + 12, s3);
1236 }
1237 #endif
1238
1239 /* setup key context for encryption only */
1240 int
1241 rijndael_set_key_enc_only(rijndael_ctx *ctx, const u_char *key, int bits)
1242 {
1243         int rounds;
1244
1245         rounds = rijndaelKeySetupEnc(ctx->ek, key, bits);
1246         if (rounds == 0)
1247                 return -1;
1248
1249         ctx->Nr = rounds;
1250 #ifdef WITH_AES_DECRYPT
1251         ctx->enc_only = 1;
1252 #endif
1253
1254         return 0;
1255 }
1256
1257 #ifdef WITH_AES_DECRYPT
1258 /* setup key context for both encryption and decryption */
1259 int
1260 rijndael_set_key(rijndael_ctx *ctx, const u_char *key, int bits)
1261 {
1262         int rounds;
1263
1264         rounds = rijndaelKeySetupEnc(ctx->ek, key, bits);
1265         if (rounds == 0)
1266                 return -1;
1267         if (rijndaelKeySetupDec(ctx->dk, key, bits) != rounds)
1268                 return -1;
1269
1270         ctx->Nr = rounds;
1271         ctx->enc_only = 0;
1272
1273         return 0;
1274 }
1275
1276 void
1277 rijndael_decrypt(rijndael_ctx *ctx, const u_char *src, u_char *dst)
1278 {
1279         rijndaelDecrypt(ctx->dk, ctx->Nr, src, dst);
1280 }
1281 #endif
1282
1283 void
1284 rijndael_encrypt(rijndael_ctx *ctx, const u_char *src, u_char *dst)
1285 {
1286         rijndaelEncrypt(ctx->ek, ctx->Nr, src, dst);
1287 }