linux/crypto/anubis.c
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   1/*
   2 * Cryptographic API.
   3 *
   4 * Anubis Algorithm
   5 *
   6 * The Anubis algorithm was developed by Paulo S. L. M. Barreto and
   7 * Vincent Rijmen.
   8 *
   9 * See
  10 *
  11 *      P.S.L.M. Barreto, V. Rijmen,
  12 *      ``The Anubis block cipher,''
  13 *      NESSIE submission, 2000.
  14 *
  15 * This software implements the "tweaked" version of Anubis.
  16 * Only the S-box and (consequently) the rounds constants have been
  17 * changed.
  18 *
  19 * The original authors have disclaimed all copyright interest in this
  20 * code and thus put it in the public domain. The subsequent authors
  21 * have put this under the GNU General Public License.
  22 *
  23 * By Aaron Grothe ajgrothe@yahoo.com, October 28, 2004
  24 *
  25 * This program is free software; you can redistribute it and/or modify
  26 * it under the terms of the GNU General Public License as published by
  27 * the Free Software Foundation; either version 2 of the License, or
  28 * (at your option) any later version.
  29 *
  30 */
  31
  32#include <linux/init.h>
  33#include <linux/module.h>
  34#include <linux/mm.h>
  35#include <asm/byteorder.h>
  36#include <linux/crypto.h>
  37#include <linux/types.h>
  38
  39#define ANUBIS_MIN_KEY_SIZE     16
  40#define ANUBIS_MAX_KEY_SIZE     40
  41#define ANUBIS_BLOCK_SIZE       16
  42#define ANUBIS_MAX_N            10
  43#define ANUBIS_MAX_ROUNDS       (8 + ANUBIS_MAX_N)
  44
  45struct anubis_ctx {
  46        int key_len; // in bits
  47        int R;
  48        u32 E[ANUBIS_MAX_ROUNDS + 1][4];
  49        u32 D[ANUBIS_MAX_ROUNDS + 1][4];
  50};
  51
  52static const u32 T0[256] = {
  53        0xba69d2bbU, 0x54a84de5U, 0x2f5ebce2U, 0x74e8cd25U,
  54        0x53a651f7U, 0xd3bb6bd0U, 0xd2b96fd6U, 0x4d9a29b3U,
  55        0x50a05dfdU, 0xac458acfU, 0x8d070e09U, 0xbf63c6a5U,
  56        0x70e0dd3dU, 0x52a455f1U, 0x9a29527bU, 0x4c982db5U,
  57        0xeac98f46U, 0xd5b773c4U, 0x97336655U, 0xd1bf63dcU,
  58        0x3366ccaaU, 0x51a259fbU, 0x5bb671c7U, 0xa651a2f3U,
  59        0xdea15ffeU, 0x48903dadU, 0xa84d9ad7U, 0x992f5e71U,
  60        0xdbab4be0U, 0x3264c8acU, 0xb773e695U, 0xfce5d732U,
  61        0xe3dbab70U, 0x9e214263U, 0x913f7e41U, 0x9b2b567dU,
  62        0xe2d9af76U, 0xbb6bd6bdU, 0x4182199bU, 0x6edca579U,
  63        0xa557aef9U, 0xcb8b0b80U, 0x6bd6b167U, 0x95376e59U,
  64        0xa15fbee1U, 0xf3fbeb10U, 0xb17ffe81U, 0x0204080cU,
  65        0xcc851792U, 0xc49537a2U, 0x1d3a744eU, 0x14285078U,
  66        0xc39b2bb0U, 0x63c69157U, 0xdaa94fe6U, 0x5dba69d3U,
  67        0x5fbe61dfU, 0xdca557f2U, 0x7dfae913U, 0xcd871394U,
  68        0x7ffee11fU, 0x5ab475c1U, 0x6cd8ad75U, 0x5cb86dd5U,
  69        0xf7f3fb08U, 0x264c98d4U, 0xffe3db38U, 0xedc79354U,
  70        0xe8cd874aU, 0x9d274e69U, 0x6fdea17fU, 0x8e010203U,
  71        0x19326456U, 0xa05dbae7U, 0xf0fde71aU, 0x890f1e11U,
  72        0x0f1e3c22U, 0x070e1c12U, 0xaf4386c5U, 0xfbebcb20U,
  73        0x08102030U, 0x152a547eU, 0x0d1a342eU, 0x04081018U,
  74        0x01020406U, 0x64c88d45U, 0xdfa35bf8U, 0x76ecc529U,
  75        0x79f2f90bU, 0xdda753f4U, 0x3d7af48eU, 0x162c5874U,
  76        0x3f7efc82U, 0x376edcb2U, 0x6ddaa973U, 0x3870e090U,
  77        0xb96fdeb1U, 0x73e6d137U, 0xe9cf834cU, 0x356ad4beU,
  78        0x55aa49e3U, 0x71e2d93bU, 0x7bf6f107U, 0x8c050a0fU,
  79        0x72e4d531U, 0x880d1a17U, 0xf6f1ff0eU, 0x2a54a8fcU,
  80        0x3e7cf884U, 0x5ebc65d9U, 0x274e9cd2U, 0x468c0589U,
  81        0x0c183028U, 0x65ca8943U, 0x68d0bd6dU, 0x61c2995bU,
  82        0x03060c0aU, 0xc19f23bcU, 0x57ae41efU, 0xd6b17fceU,
  83        0xd9af43ecU, 0x58b07dcdU, 0xd8ad47eaU, 0x66cc8549U,
  84        0xd7b37bc8U, 0x3a74e89cU, 0xc88d078aU, 0x3c78f088U,
  85        0xfae9cf26U, 0x96316253U, 0xa753a6f5U, 0x982d5a77U,
  86        0xecc59752U, 0xb86ddab7U, 0xc7933ba8U, 0xae4182c3U,
  87        0x69d2b96bU, 0x4b9631a7U, 0xab4b96ddU, 0xa94f9ed1U,
  88        0x67ce814fU, 0x0a14283cU, 0x478e018fU, 0xf2f9ef16U,
  89        0xb577ee99U, 0x224488ccU, 0xe5d7b364U, 0xeec19f5eU,
  90        0xbe61c2a3U, 0x2b56acfaU, 0x811f3e21U, 0x1224486cU,
  91        0x831b362dU, 0x1b366c5aU, 0x0e1c3824U, 0x23468ccaU,
  92        0xf5f7f304U, 0x458a0983U, 0x214284c6U, 0xce811f9eU,
  93        0x499239abU, 0x2c58b0e8U, 0xf9efc32cU, 0xe6d1bf6eU,
  94        0xb671e293U, 0x2850a0f0U, 0x172e5c72U, 0x8219322bU,
  95        0x1a34685cU, 0x8b0b161dU, 0xfee1df3eU, 0x8a09121bU,
  96        0x09122436U, 0xc98f038cU, 0x87132635U, 0x4e9c25b9U,
  97        0xe1dfa37cU, 0x2e5cb8e4U, 0xe4d5b762U, 0xe0dda77aU,
  98        0xebcb8b40U, 0x903d7a47U, 0xa455aaffU, 0x1e3c7844U,
  99        0x85172e39U, 0x60c09d5dU, 0x00000000U, 0x254a94deU,
 100        0xf4f5f702U, 0xf1ffe31cU, 0x94356a5fU, 0x0b162c3aU,
 101        0xe7d3bb68U, 0x75eac923U, 0xefc39b58U, 0x3468d0b8U,
 102        0x3162c4a6U, 0xd4b577c2U, 0xd0bd67daU, 0x86112233U,
 103        0x7efce519U, 0xad478ec9U, 0xfde7d334U, 0x2952a4f6U,
 104        0x3060c0a0U, 0x3b76ec9aU, 0x9f234665U, 0xf8edc72aU,
 105        0xc6913faeU, 0x13264c6aU, 0x060c1814U, 0x050a141eU,
 106        0xc59733a4U, 0x11224466U, 0x77eec12fU, 0x7cf8ed15U,
 107        0x7af4f501U, 0x78f0fd0dU, 0x366cd8b4U, 0x1c387048U,
 108        0x3972e496U, 0x59b279cbU, 0x18306050U, 0x56ac45e9U,
 109        0xb37bf68dU, 0xb07dfa87U, 0x244890d8U, 0x204080c0U,
 110        0xb279f28bU, 0x9239724bU, 0xa35bb6edU, 0xc09d27baU,
 111        0x44880d85U, 0x62c49551U, 0x10204060U, 0xb475ea9fU,
 112        0x84152a3fU, 0x43861197U, 0x933b764dU, 0xc2992fb6U,
 113        0x4a9435a1U, 0xbd67cea9U, 0x8f030605U, 0x2d5ab4eeU,
 114        0xbc65caafU, 0x9c254a6fU, 0x6ad4b561U, 0x40801d9dU,
 115        0xcf831b98U, 0xa259b2ebU, 0x801d3a27U, 0x4f9e21bfU,
 116        0x1f3e7c42U, 0xca890f86U, 0xaa4992dbU, 0x42841591U,
 117};
 118
 119static const u32 T1[256] = {
 120        0x69babbd2U, 0xa854e54dU, 0x5e2fe2bcU, 0xe87425cdU,
 121        0xa653f751U, 0xbbd3d06bU, 0xb9d2d66fU, 0x9a4db329U,
 122        0xa050fd5dU, 0x45accf8aU, 0x078d090eU, 0x63bfa5c6U,
 123        0xe0703dddU, 0xa452f155U, 0x299a7b52U, 0x984cb52dU,
 124        0xc9ea468fU, 0xb7d5c473U, 0x33975566U, 0xbfd1dc63U,
 125        0x6633aaccU, 0xa251fb59U, 0xb65bc771U, 0x51a6f3a2U,
 126        0xa1defe5fU, 0x9048ad3dU, 0x4da8d79aU, 0x2f99715eU,
 127        0xabdbe04bU, 0x6432acc8U, 0x73b795e6U, 0xe5fc32d7U,
 128        0xdbe370abU, 0x219e6342U, 0x3f91417eU, 0x2b9b7d56U,
 129        0xd9e276afU, 0x6bbbbdd6U, 0x82419b19U, 0xdc6e79a5U,
 130        0x57a5f9aeU, 0x8bcb800bU, 0xd66b67b1U, 0x3795596eU,
 131        0x5fa1e1beU, 0xfbf310ebU, 0x7fb181feU, 0x04020c08U,
 132        0x85cc9217U, 0x95c4a237U, 0x3a1d4e74U, 0x28147850U,
 133        0x9bc3b02bU, 0xc6635791U, 0xa9dae64fU, 0xba5dd369U,
 134        0xbe5fdf61U, 0xa5dcf257U, 0xfa7d13e9U, 0x87cd9413U,
 135        0xfe7f1fe1U, 0xb45ac175U, 0xd86c75adU, 0xb85cd56dU,
 136        0xf3f708fbU, 0x4c26d498U, 0xe3ff38dbU, 0xc7ed5493U,
 137        0xcde84a87U, 0x279d694eU, 0xde6f7fa1U, 0x018e0302U,
 138        0x32195664U, 0x5da0e7baU, 0xfdf01ae7U, 0x0f89111eU,
 139        0x1e0f223cU, 0x0e07121cU, 0x43afc586U, 0xebfb20cbU,
 140        0x10083020U, 0x2a157e54U, 0x1a0d2e34U, 0x08041810U,
 141        0x02010604U, 0xc864458dU, 0xa3dff85bU, 0xec7629c5U,
 142        0xf2790bf9U, 0xa7ddf453U, 0x7a3d8ef4U, 0x2c167458U,
 143        0x7e3f82fcU, 0x6e37b2dcU, 0xda6d73a9U, 0x703890e0U,
 144        0x6fb9b1deU, 0xe67337d1U, 0xcfe94c83U, 0x6a35bed4U,
 145        0xaa55e349U, 0xe2713bd9U, 0xf67b07f1U, 0x058c0f0aU,
 146        0xe47231d5U, 0x0d88171aU, 0xf1f60effU, 0x542afca8U,
 147        0x7c3e84f8U, 0xbc5ed965U, 0x4e27d29cU, 0x8c468905U,
 148        0x180c2830U, 0xca654389U, 0xd0686dbdU, 0xc2615b99U,
 149        0x06030a0cU, 0x9fc1bc23U, 0xae57ef41U, 0xb1d6ce7fU,
 150        0xafd9ec43U, 0xb058cd7dU, 0xadd8ea47U, 0xcc664985U,
 151        0xb3d7c87bU, 0x743a9ce8U, 0x8dc88a07U, 0x783c88f0U,
 152        0xe9fa26cfU, 0x31965362U, 0x53a7f5a6U, 0x2d98775aU,
 153        0xc5ec5297U, 0x6db8b7daU, 0x93c7a83bU, 0x41aec382U,
 154        0xd2696bb9U, 0x964ba731U, 0x4babdd96U, 0x4fa9d19eU,
 155        0xce674f81U, 0x140a3c28U, 0x8e478f01U, 0xf9f216efU,
 156        0x77b599eeU, 0x4422cc88U, 0xd7e564b3U, 0xc1ee5e9fU,
 157        0x61bea3c2U, 0x562bfaacU, 0x1f81213eU, 0x24126c48U,
 158        0x1b832d36U, 0x361b5a6cU, 0x1c0e2438U, 0x4623ca8cU,
 159        0xf7f504f3U, 0x8a458309U, 0x4221c684U, 0x81ce9e1fU,
 160        0x9249ab39U, 0x582ce8b0U, 0xeff92cc3U, 0xd1e66ebfU,
 161        0x71b693e2U, 0x5028f0a0U, 0x2e17725cU, 0x19822b32U,
 162        0x341a5c68U, 0x0b8b1d16U, 0xe1fe3edfU, 0x098a1b12U,
 163        0x12093624U, 0x8fc98c03U, 0x13873526U, 0x9c4eb925U,
 164        0xdfe17ca3U, 0x5c2ee4b8U, 0xd5e462b7U, 0xdde07aa7U,
 165        0xcbeb408bU, 0x3d90477aU, 0x55a4ffaaU, 0x3c1e4478U,
 166        0x1785392eU, 0xc0605d9dU, 0x00000000U, 0x4a25de94U,
 167        0xf5f402f7U, 0xfff11ce3U, 0x35945f6aU, 0x160b3a2cU,
 168        0xd3e768bbU, 0xea7523c9U, 0xc3ef589bU, 0x6834b8d0U,
 169        0x6231a6c4U, 0xb5d4c277U, 0xbdd0da67U, 0x11863322U,
 170        0xfc7e19e5U, 0x47adc98eU, 0xe7fd34d3U, 0x5229f6a4U,
 171        0x6030a0c0U, 0x763b9aecU, 0x239f6546U, 0xedf82ac7U,
 172        0x91c6ae3fU, 0x26136a4cU, 0x0c061418U, 0x0a051e14U,
 173        0x97c5a433U, 0x22116644U, 0xee772fc1U, 0xf87c15edU,
 174        0xf47a01f5U, 0xf0780dfdU, 0x6c36b4d8U, 0x381c4870U,
 175        0x723996e4U, 0xb259cb79U, 0x30185060U, 0xac56e945U,
 176        0x7bb38df6U, 0x7db087faU, 0x4824d890U, 0x4020c080U,
 177        0x79b28bf2U, 0x39924b72U, 0x5ba3edb6U, 0x9dc0ba27U,
 178        0x8844850dU, 0xc4625195U, 0x20106040U, 0x75b49feaU,
 179        0x15843f2aU, 0x86439711U, 0x3b934d76U, 0x99c2b62fU,
 180        0x944aa135U, 0x67bda9ceU, 0x038f0506U, 0x5a2deeb4U,
 181        0x65bcafcaU, 0x259c6f4aU, 0xd46a61b5U, 0x80409d1dU,
 182        0x83cf981bU, 0x59a2ebb2U, 0x1d80273aU, 0x9e4fbf21U,
 183        0x3e1f427cU, 0x89ca860fU, 0x49aadb92U, 0x84429115U,
 184};
 185
 186static const u32 T2[256] = {
 187        0xd2bbba69U, 0x4de554a8U, 0xbce22f5eU, 0xcd2574e8U,
 188        0x51f753a6U, 0x6bd0d3bbU, 0x6fd6d2b9U, 0x29b34d9aU,
 189        0x5dfd50a0U, 0x8acfac45U, 0x0e098d07U, 0xc6a5bf63U,
 190        0xdd3d70e0U, 0x55f152a4U, 0x527b9a29U, 0x2db54c98U,
 191        0x8f46eac9U, 0x73c4d5b7U, 0x66559733U, 0x63dcd1bfU,
 192        0xccaa3366U, 0x59fb51a2U, 0x71c75bb6U, 0xa2f3a651U,
 193        0x5ffedea1U, 0x3dad4890U, 0x9ad7a84dU, 0x5e71992fU,
 194        0x4be0dbabU, 0xc8ac3264U, 0xe695b773U, 0xd732fce5U,
 195        0xab70e3dbU, 0x42639e21U, 0x7e41913fU, 0x567d9b2bU,
 196        0xaf76e2d9U, 0xd6bdbb6bU, 0x199b4182U, 0xa5796edcU,
 197        0xaef9a557U, 0x0b80cb8bU, 0xb1676bd6U, 0x6e599537U,
 198        0xbee1a15fU, 0xeb10f3fbU, 0xfe81b17fU, 0x080c0204U,
 199        0x1792cc85U, 0x37a2c495U, 0x744e1d3aU, 0x50781428U,
 200        0x2bb0c39bU, 0x915763c6U, 0x4fe6daa9U, 0x69d35dbaU,
 201        0x61df5fbeU, 0x57f2dca5U, 0xe9137dfaU, 0x1394cd87U,
 202        0xe11f7ffeU, 0x75c15ab4U, 0xad756cd8U, 0x6dd55cb8U,
 203        0xfb08f7f3U, 0x98d4264cU, 0xdb38ffe3U, 0x9354edc7U,
 204        0x874ae8cdU, 0x4e699d27U, 0xa17f6fdeU, 0x02038e01U,
 205        0x64561932U, 0xbae7a05dU, 0xe71af0fdU, 0x1e11890fU,
 206        0x3c220f1eU, 0x1c12070eU, 0x86c5af43U, 0xcb20fbebU,
 207        0x20300810U, 0x547e152aU, 0x342e0d1aU, 0x10180408U,
 208        0x04060102U, 0x8d4564c8U, 0x5bf8dfa3U, 0xc52976ecU,
 209        0xf90b79f2U, 0x53f4dda7U, 0xf48e3d7aU, 0x5874162cU,
 210        0xfc823f7eU, 0xdcb2376eU, 0xa9736ddaU, 0xe0903870U,
 211        0xdeb1b96fU, 0xd13773e6U, 0x834ce9cfU, 0xd4be356aU,
 212        0x49e355aaU, 0xd93b71e2U, 0xf1077bf6U, 0x0a0f8c05U,
 213        0xd53172e4U, 0x1a17880dU, 0xff0ef6f1U, 0xa8fc2a54U,
 214        0xf8843e7cU, 0x65d95ebcU, 0x9cd2274eU, 0x0589468cU,
 215        0x30280c18U, 0x894365caU, 0xbd6d68d0U, 0x995b61c2U,
 216        0x0c0a0306U, 0x23bcc19fU, 0x41ef57aeU, 0x7fced6b1U,
 217        0x43ecd9afU, 0x7dcd58b0U, 0x47ead8adU, 0x854966ccU,
 218        0x7bc8d7b3U, 0xe89c3a74U, 0x078ac88dU, 0xf0883c78U,
 219        0xcf26fae9U, 0x62539631U, 0xa6f5a753U, 0x5a77982dU,
 220        0x9752ecc5U, 0xdab7b86dU, 0x3ba8c793U, 0x82c3ae41U,
 221        0xb96b69d2U, 0x31a74b96U, 0x96ddab4bU, 0x9ed1a94fU,
 222        0x814f67ceU, 0x283c0a14U, 0x018f478eU, 0xef16f2f9U,
 223        0xee99b577U, 0x88cc2244U, 0xb364e5d7U, 0x9f5eeec1U,
 224        0xc2a3be61U, 0xacfa2b56U, 0x3e21811fU, 0x486c1224U,
 225        0x362d831bU, 0x6c5a1b36U, 0x38240e1cU, 0x8cca2346U,
 226        0xf304f5f7U, 0x0983458aU, 0x84c62142U, 0x1f9ece81U,
 227        0x39ab4992U, 0xb0e82c58U, 0xc32cf9efU, 0xbf6ee6d1U,
 228        0xe293b671U, 0xa0f02850U, 0x5c72172eU, 0x322b8219U,
 229        0x685c1a34U, 0x161d8b0bU, 0xdf3efee1U, 0x121b8a09U,
 230        0x24360912U, 0x038cc98fU, 0x26358713U, 0x25b94e9cU,
 231        0xa37ce1dfU, 0xb8e42e5cU, 0xb762e4d5U, 0xa77ae0ddU,
 232        0x8b40ebcbU, 0x7a47903dU, 0xaaffa455U, 0x78441e3cU,
 233        0x2e398517U, 0x9d5d60c0U, 0x00000000U, 0x94de254aU,
 234        0xf702f4f5U, 0xe31cf1ffU, 0x6a5f9435U, 0x2c3a0b16U,
 235        0xbb68e7d3U, 0xc92375eaU, 0x9b58efc3U, 0xd0b83468U,
 236        0xc4a63162U, 0x77c2d4b5U, 0x67dad0bdU, 0x22338611U,
 237        0xe5197efcU, 0x8ec9ad47U, 0xd334fde7U, 0xa4f62952U,
 238        0xc0a03060U, 0xec9a3b76U, 0x46659f23U, 0xc72af8edU,
 239        0x3faec691U, 0x4c6a1326U, 0x1814060cU, 0x141e050aU,
 240        0x33a4c597U, 0x44661122U, 0xc12f77eeU, 0xed157cf8U,
 241        0xf5017af4U, 0xfd0d78f0U, 0xd8b4366cU, 0x70481c38U,
 242        0xe4963972U, 0x79cb59b2U, 0x60501830U, 0x45e956acU,
 243        0xf68db37bU, 0xfa87b07dU, 0x90d82448U, 0x80c02040U,
 244        0xf28bb279U, 0x724b9239U, 0xb6eda35bU, 0x27bac09dU,
 245        0x0d854488U, 0x955162c4U, 0x40601020U, 0xea9fb475U,
 246        0x2a3f8415U, 0x11974386U, 0x764d933bU, 0x2fb6c299U,
 247        0x35a14a94U, 0xcea9bd67U, 0x06058f03U, 0xb4ee2d5aU,
 248        0xcaafbc65U, 0x4a6f9c25U, 0xb5616ad4U, 0x1d9d4080U,
 249        0x1b98cf83U, 0xb2eba259U, 0x3a27801dU, 0x21bf4f9eU,
 250        0x7c421f3eU, 0x0f86ca89U, 0x92dbaa49U, 0x15914284U,
 251};
 252
 253static const u32 T3[256] = {
 254        0xbbd269baU, 0xe54da854U, 0xe2bc5e2fU, 0x25cde874U,
 255        0xf751a653U, 0xd06bbbd3U, 0xd66fb9d2U, 0xb3299a4dU,
 256        0xfd5da050U, 0xcf8a45acU, 0x090e078dU, 0xa5c663bfU,
 257        0x3ddde070U, 0xf155a452U, 0x7b52299aU, 0xb52d984cU,
 258        0x468fc9eaU, 0xc473b7d5U, 0x55663397U, 0xdc63bfd1U,
 259        0xaacc6633U, 0xfb59a251U, 0xc771b65bU, 0xf3a251a6U,
 260        0xfe5fa1deU, 0xad3d9048U, 0xd79a4da8U, 0x715e2f99U,
 261        0xe04babdbU, 0xacc86432U, 0x95e673b7U, 0x32d7e5fcU,
 262        0x70abdbe3U, 0x6342219eU, 0x417e3f91U, 0x7d562b9bU,
 263        0x76afd9e2U, 0xbdd66bbbU, 0x9b198241U, 0x79a5dc6eU,
 264        0xf9ae57a5U, 0x800b8bcbU, 0x67b1d66bU, 0x596e3795U,
 265        0xe1be5fa1U, 0x10ebfbf3U, 0x81fe7fb1U, 0x0c080402U,
 266        0x921785ccU, 0xa23795c4U, 0x4e743a1dU, 0x78502814U,
 267        0xb02b9bc3U, 0x5791c663U, 0xe64fa9daU, 0xd369ba5dU,
 268        0xdf61be5fU, 0xf257a5dcU, 0x13e9fa7dU, 0x941387cdU,
 269        0x1fe1fe7fU, 0xc175b45aU, 0x75add86cU, 0xd56db85cU,
 270        0x08fbf3f7U, 0xd4984c26U, 0x38dbe3ffU, 0x5493c7edU,
 271        0x4a87cde8U, 0x694e279dU, 0x7fa1de6fU, 0x0302018eU,
 272        0x56643219U, 0xe7ba5da0U, 0x1ae7fdf0U, 0x111e0f89U,
 273        0x223c1e0fU, 0x121c0e07U, 0xc58643afU, 0x20cbebfbU,
 274        0x30201008U, 0x7e542a15U, 0x2e341a0dU, 0x18100804U,
 275        0x06040201U, 0x458dc864U, 0xf85ba3dfU, 0x29c5ec76U,
 276        0x0bf9f279U, 0xf453a7ddU, 0x8ef47a3dU, 0x74582c16U,
 277        0x82fc7e3fU, 0xb2dc6e37U, 0x73a9da6dU, 0x90e07038U,
 278        0xb1de6fb9U, 0x37d1e673U, 0x4c83cfe9U, 0xbed46a35U,
 279        0xe349aa55U, 0x3bd9e271U, 0x07f1f67bU, 0x0f0a058cU,
 280        0x31d5e472U, 0x171a0d88U, 0x0efff1f6U, 0xfca8542aU,
 281        0x84f87c3eU, 0xd965bc5eU, 0xd29c4e27U, 0x89058c46U,
 282        0x2830180cU, 0x4389ca65U, 0x6dbdd068U, 0x5b99c261U,
 283        0x0a0c0603U, 0xbc239fc1U, 0xef41ae57U, 0xce7fb1d6U,
 284        0xec43afd9U, 0xcd7db058U, 0xea47add8U, 0x4985cc66U,
 285        0xc87bb3d7U, 0x9ce8743aU, 0x8a078dc8U, 0x88f0783cU,
 286        0x26cfe9faU, 0x53623196U, 0xf5a653a7U, 0x775a2d98U,
 287        0x5297c5ecU, 0xb7da6db8U, 0xa83b93c7U, 0xc38241aeU,
 288        0x6bb9d269U, 0xa731964bU, 0xdd964babU, 0xd19e4fa9U,
 289        0x4f81ce67U, 0x3c28140aU, 0x8f018e47U, 0x16eff9f2U,
 290        0x99ee77b5U, 0xcc884422U, 0x64b3d7e5U, 0x5e9fc1eeU,
 291        0xa3c261beU, 0xfaac562bU, 0x213e1f81U, 0x6c482412U,
 292        0x2d361b83U, 0x5a6c361bU, 0x24381c0eU, 0xca8c4623U,
 293        0x04f3f7f5U, 0x83098a45U, 0xc6844221U, 0x9e1f81ceU,
 294        0xab399249U, 0xe8b0582cU, 0x2cc3eff9U, 0x6ebfd1e6U,
 295        0x93e271b6U, 0xf0a05028U, 0x725c2e17U, 0x2b321982U,
 296        0x5c68341aU, 0x1d160b8bU, 0x3edfe1feU, 0x1b12098aU,
 297        0x36241209U, 0x8c038fc9U, 0x35261387U, 0xb9259c4eU,
 298        0x7ca3dfe1U, 0xe4b85c2eU, 0x62b7d5e4U, 0x7aa7dde0U,
 299        0x408bcbebU, 0x477a3d90U, 0xffaa55a4U, 0x44783c1eU,
 300        0x392e1785U, 0x5d9dc060U, 0x00000000U, 0xde944a25U,
 301        0x02f7f5f4U, 0x1ce3fff1U, 0x5f6a3594U, 0x3a2c160bU,
 302        0x68bbd3e7U, 0x23c9ea75U, 0x589bc3efU, 0xb8d06834U,
 303        0xa6c46231U, 0xc277b5d4U, 0xda67bdd0U, 0x33221186U,
 304        0x19e5fc7eU, 0xc98e47adU, 0x34d3e7fdU, 0xf6a45229U,
 305        0xa0c06030U, 0x9aec763bU, 0x6546239fU, 0x2ac7edf8U,
 306        0xae3f91c6U, 0x6a4c2613U, 0x14180c06U, 0x1e140a05U,
 307        0xa43397c5U, 0x66442211U, 0x2fc1ee77U, 0x15edf87cU,
 308        0x01f5f47aU, 0x0dfdf078U, 0xb4d86c36U, 0x4870381cU,
 309        0x96e47239U, 0xcb79b259U, 0x50603018U, 0xe945ac56U,
 310        0x8df67bb3U, 0x87fa7db0U, 0xd8904824U, 0xc0804020U,
 311        0x8bf279b2U, 0x4b723992U, 0xedb65ba3U, 0xba279dc0U,
 312        0x850d8844U, 0x5195c462U, 0x60402010U, 0x9fea75b4U,
 313        0x3f2a1584U, 0x97118643U, 0x4d763b93U, 0xb62f99c2U,
 314        0xa135944aU, 0xa9ce67bdU, 0x0506038fU, 0xeeb45a2dU,
 315        0xafca65bcU, 0x6f4a259cU, 0x61b5d46aU, 0x9d1d8040U,
 316        0x981b83cfU, 0xebb259a2U, 0x273a1d80U, 0xbf219e4fU,
 317        0x427c3e1fU, 0x860f89caU, 0xdb9249aaU, 0x91158442U,
 318};
 319
 320static const u32 T4[256] = {
 321        0xbabababaU, 0x54545454U, 0x2f2f2f2fU, 0x74747474U,
 322        0x53535353U, 0xd3d3d3d3U, 0xd2d2d2d2U, 0x4d4d4d4dU,
 323        0x50505050U, 0xacacacacU, 0x8d8d8d8dU, 0xbfbfbfbfU,
 324        0x70707070U, 0x52525252U, 0x9a9a9a9aU, 0x4c4c4c4cU,
 325        0xeaeaeaeaU, 0xd5d5d5d5U, 0x97979797U, 0xd1d1d1d1U,
 326        0x33333333U, 0x51515151U, 0x5b5b5b5bU, 0xa6a6a6a6U,
 327        0xdedededeU, 0x48484848U, 0xa8a8a8a8U, 0x99999999U,
 328        0xdbdbdbdbU, 0x32323232U, 0xb7b7b7b7U, 0xfcfcfcfcU,
 329        0xe3e3e3e3U, 0x9e9e9e9eU, 0x91919191U, 0x9b9b9b9bU,
 330        0xe2e2e2e2U, 0xbbbbbbbbU, 0x41414141U, 0x6e6e6e6eU,
 331        0xa5a5a5a5U, 0xcbcbcbcbU, 0x6b6b6b6bU, 0x95959595U,
 332        0xa1a1a1a1U, 0xf3f3f3f3U, 0xb1b1b1b1U, 0x02020202U,
 333        0xccccccccU, 0xc4c4c4c4U, 0x1d1d1d1dU, 0x14141414U,
 334        0xc3c3c3c3U, 0x63636363U, 0xdadadadaU, 0x5d5d5d5dU,
 335        0x5f5f5f5fU, 0xdcdcdcdcU, 0x7d7d7d7dU, 0xcdcdcdcdU,
 336        0x7f7f7f7fU, 0x5a5a5a5aU, 0x6c6c6c6cU, 0x5c5c5c5cU,
 337        0xf7f7f7f7U, 0x26262626U, 0xffffffffU, 0xededededU,
 338        0xe8e8e8e8U, 0x9d9d9d9dU, 0x6f6f6f6fU, 0x8e8e8e8eU,
 339        0x19191919U, 0xa0a0a0a0U, 0xf0f0f0f0U, 0x89898989U,
 340        0x0f0f0f0fU, 0x07070707U, 0xafafafafU, 0xfbfbfbfbU,
 341        0x08080808U, 0x15151515U, 0x0d0d0d0dU, 0x04040404U,
 342        0x01010101U, 0x64646464U, 0xdfdfdfdfU, 0x76767676U,
 343        0x79797979U, 0xddddddddU, 0x3d3d3d3dU, 0x16161616U,
 344        0x3f3f3f3fU, 0x37373737U, 0x6d6d6d6dU, 0x38383838U,
 345        0xb9b9b9b9U, 0x73737373U, 0xe9e9e9e9U, 0x35353535U,
 346        0x55555555U, 0x71717171U, 0x7b7b7b7bU, 0x8c8c8c8cU,
 347        0x72727272U, 0x88888888U, 0xf6f6f6f6U, 0x2a2a2a2aU,
 348        0x3e3e3e3eU, 0x5e5e5e5eU, 0x27272727U, 0x46464646U,
 349        0x0c0c0c0cU, 0x65656565U, 0x68686868U, 0x61616161U,
 350        0x03030303U, 0xc1c1c1c1U, 0x57575757U, 0xd6d6d6d6U,
 351        0xd9d9d9d9U, 0x58585858U, 0xd8d8d8d8U, 0x66666666U,
 352        0xd7d7d7d7U, 0x3a3a3a3aU, 0xc8c8c8c8U, 0x3c3c3c3cU,
 353        0xfafafafaU, 0x96969696U, 0xa7a7a7a7U, 0x98989898U,
 354        0xececececU, 0xb8b8b8b8U, 0xc7c7c7c7U, 0xaeaeaeaeU,
 355        0x69696969U, 0x4b4b4b4bU, 0xababababU, 0xa9a9a9a9U,
 356        0x67676767U, 0x0a0a0a0aU, 0x47474747U, 0xf2f2f2f2U,
 357        0xb5b5b5b5U, 0x22222222U, 0xe5e5e5e5U, 0xeeeeeeeeU,
 358        0xbebebebeU, 0x2b2b2b2bU, 0x81818181U, 0x12121212U,
 359        0x83838383U, 0x1b1b1b1bU, 0x0e0e0e0eU, 0x23232323U,
 360        0xf5f5f5f5U, 0x45454545U, 0x21212121U, 0xcecececeU,
 361        0x49494949U, 0x2c2c2c2cU, 0xf9f9f9f9U, 0xe6e6e6e6U,
 362        0xb6b6b6b6U, 0x28282828U, 0x17171717U, 0x82828282U,
 363        0x1a1a1a1aU, 0x8b8b8b8bU, 0xfefefefeU, 0x8a8a8a8aU,
 364        0x09090909U, 0xc9c9c9c9U, 0x87878787U, 0x4e4e4e4eU,
 365        0xe1e1e1e1U, 0x2e2e2e2eU, 0xe4e4e4e4U, 0xe0e0e0e0U,
 366        0xebebebebU, 0x90909090U, 0xa4a4a4a4U, 0x1e1e1e1eU,
 367        0x85858585U, 0x60606060U, 0x00000000U, 0x25252525U,
 368        0xf4f4f4f4U, 0xf1f1f1f1U, 0x94949494U, 0x0b0b0b0bU,
 369        0xe7e7e7e7U, 0x75757575U, 0xefefefefU, 0x34343434U,
 370        0x31313131U, 0xd4d4d4d4U, 0xd0d0d0d0U, 0x86868686U,
 371        0x7e7e7e7eU, 0xadadadadU, 0xfdfdfdfdU, 0x29292929U,
 372        0x30303030U, 0x3b3b3b3bU, 0x9f9f9f9fU, 0xf8f8f8f8U,
 373        0xc6c6c6c6U, 0x13131313U, 0x06060606U, 0x05050505U,
 374        0xc5c5c5c5U, 0x11111111U, 0x77777777U, 0x7c7c7c7cU,
 375        0x7a7a7a7aU, 0x78787878U, 0x36363636U, 0x1c1c1c1cU,
 376        0x39393939U, 0x59595959U, 0x18181818U, 0x56565656U,
 377        0xb3b3b3b3U, 0xb0b0b0b0U, 0x24242424U, 0x20202020U,
 378        0xb2b2b2b2U, 0x92929292U, 0xa3a3a3a3U, 0xc0c0c0c0U,
 379        0x44444444U, 0x62626262U, 0x10101010U, 0xb4b4b4b4U,
 380        0x84848484U, 0x43434343U, 0x93939393U, 0xc2c2c2c2U,
 381        0x4a4a4a4aU, 0xbdbdbdbdU, 0x8f8f8f8fU, 0x2d2d2d2dU,
 382        0xbcbcbcbcU, 0x9c9c9c9cU, 0x6a6a6a6aU, 0x40404040U,
 383        0xcfcfcfcfU, 0xa2a2a2a2U, 0x80808080U, 0x4f4f4f4fU,
 384        0x1f1f1f1fU, 0xcacacacaU, 0xaaaaaaaaU, 0x42424242U,
 385};
 386
 387static const u32 T5[256] = {
 388        0x00000000U, 0x01020608U, 0x02040c10U, 0x03060a18U,
 389        0x04081820U, 0x050a1e28U, 0x060c1430U, 0x070e1238U,
 390        0x08103040U, 0x09123648U, 0x0a143c50U, 0x0b163a58U,
 391        0x0c182860U, 0x0d1a2e68U, 0x0e1c2470U, 0x0f1e2278U,
 392        0x10206080U, 0x11226688U, 0x12246c90U, 0x13266a98U,
 393        0x142878a0U, 0x152a7ea8U, 0x162c74b0U, 0x172e72b8U,
 394        0x183050c0U, 0x193256c8U, 0x1a345cd0U, 0x1b365ad8U,
 395        0x1c3848e0U, 0x1d3a4ee8U, 0x1e3c44f0U, 0x1f3e42f8U,
 396        0x2040c01dU, 0x2142c615U, 0x2244cc0dU, 0x2346ca05U,
 397        0x2448d83dU, 0x254ade35U, 0x264cd42dU, 0x274ed225U,
 398        0x2850f05dU, 0x2952f655U, 0x2a54fc4dU, 0x2b56fa45U,
 399        0x2c58e87dU, 0x2d5aee75U, 0x2e5ce46dU, 0x2f5ee265U,
 400        0x3060a09dU, 0x3162a695U, 0x3264ac8dU, 0x3366aa85U,
 401        0x3468b8bdU, 0x356abeb5U, 0x366cb4adU, 0x376eb2a5U,
 402        0x387090ddU, 0x397296d5U, 0x3a749ccdU, 0x3b769ac5U,
 403        0x3c7888fdU, 0x3d7a8ef5U, 0x3e7c84edU, 0x3f7e82e5U,
 404        0x40809d3aU, 0x41829b32U, 0x4284912aU, 0x43869722U,
 405        0x4488851aU, 0x458a8312U, 0x468c890aU, 0x478e8f02U,
 406        0x4890ad7aU, 0x4992ab72U, 0x4a94a16aU, 0x4b96a762U,
 407        0x4c98b55aU, 0x4d9ab352U, 0x4e9cb94aU, 0x4f9ebf42U,
 408        0x50a0fdbaU, 0x51a2fbb2U, 0x52a4f1aaU, 0x53a6f7a2U,
 409        0x54a8e59aU, 0x55aae392U, 0x56ace98aU, 0x57aeef82U,
 410        0x58b0cdfaU, 0x59b2cbf2U, 0x5ab4c1eaU, 0x5bb6c7e2U,
 411        0x5cb8d5daU, 0x5dbad3d2U, 0x5ebcd9caU, 0x5fbedfc2U,
 412        0x60c05d27U, 0x61c25b2fU, 0x62c45137U, 0x63c6573fU,
 413        0x64c84507U, 0x65ca430fU, 0x66cc4917U, 0x67ce4f1fU,
 414        0x68d06d67U, 0x69d26b6fU, 0x6ad46177U, 0x6bd6677fU,
 415        0x6cd87547U, 0x6dda734fU, 0x6edc7957U, 0x6fde7f5fU,
 416        0x70e03da7U, 0x71e23bafU, 0x72e431b7U, 0x73e637bfU,
 417        0x74e82587U, 0x75ea238fU, 0x76ec2997U, 0x77ee2f9fU,
 418        0x78f00de7U, 0x79f20befU, 0x7af401f7U, 0x7bf607ffU,
 419        0x7cf815c7U, 0x7dfa13cfU, 0x7efc19d7U, 0x7ffe1fdfU,
 420        0x801d2774U, 0x811f217cU, 0x82192b64U, 0x831b2d6cU,
 421        0x84153f54U, 0x8517395cU, 0x86113344U, 0x8713354cU,
 422        0x880d1734U, 0x890f113cU, 0x8a091b24U, 0x8b0b1d2cU,
 423        0x8c050f14U, 0x8d07091cU, 0x8e010304U, 0x8f03050cU,
 424        0x903d47f4U, 0x913f41fcU, 0x92394be4U, 0x933b4decU,
 425        0x94355fd4U, 0x953759dcU, 0x963153c4U, 0x973355ccU,
 426        0x982d77b4U, 0x992f71bcU, 0x9a297ba4U, 0x9b2b7dacU,
 427        0x9c256f94U, 0x9d27699cU, 0x9e216384U, 0x9f23658cU,
 428        0xa05de769U, 0xa15fe161U, 0xa259eb79U, 0xa35bed71U,
 429        0xa455ff49U, 0xa557f941U, 0xa651f359U, 0xa753f551U,
 430        0xa84dd729U, 0xa94fd121U, 0xaa49db39U, 0xab4bdd31U,
 431        0xac45cf09U, 0xad47c901U, 0xae41c319U, 0xaf43c511U,
 432        0xb07d87e9U, 0xb17f81e1U, 0xb2798bf9U, 0xb37b8df1U,
 433        0xb4759fc9U, 0xb57799c1U, 0xb67193d9U, 0xb77395d1U,
 434        0xb86db7a9U, 0xb96fb1a1U, 0xba69bbb9U, 0xbb6bbdb1U,
 435        0xbc65af89U, 0xbd67a981U, 0xbe61a399U, 0xbf63a591U,
 436        0xc09dba4eU, 0xc19fbc46U, 0xc299b65eU, 0xc39bb056U,
 437        0xc495a26eU, 0xc597a466U, 0xc691ae7eU, 0xc793a876U,
 438        0xc88d8a0eU, 0xc98f8c06U, 0xca89861eU, 0xcb8b8016U,
 439        0xcc85922eU, 0xcd879426U, 0xce819e3eU, 0xcf839836U,
 440        0xd0bddaceU, 0xd1bfdcc6U, 0xd2b9d6deU, 0xd3bbd0d6U,
 441        0xd4b5c2eeU, 0xd5b7c4e6U, 0xd6b1cefeU, 0xd7b3c8f6U,
 442        0xd8adea8eU, 0xd9afec86U, 0xdaa9e69eU, 0xdbabe096U,
 443        0xdca5f2aeU, 0xdda7f4a6U, 0xdea1febeU, 0xdfa3f8b6U,
 444        0xe0dd7a53U, 0xe1df7c5bU, 0xe2d97643U, 0xe3db704bU,
 445        0xe4d56273U, 0xe5d7647bU, 0xe6d16e63U, 0xe7d3686bU,
 446        0xe8cd4a13U, 0xe9cf4c1bU, 0xeac94603U, 0xebcb400bU,
 447        0xecc55233U, 0xedc7543bU, 0xeec15e23U, 0xefc3582bU,
 448        0xf0fd1ad3U, 0xf1ff1cdbU, 0xf2f916c3U, 0xf3fb10cbU,
 449        0xf4f502f3U, 0xf5f704fbU, 0xf6f10ee3U, 0xf7f308ebU,
 450        0xf8ed2a93U, 0xf9ef2c9bU, 0xfae92683U, 0xfbeb208bU,
 451        0xfce532b3U, 0xfde734bbU, 0xfee13ea3U, 0xffe338abU,
 452};
 453
 454static const u32 rc[] = {
 455        0xba542f74U, 0x53d3d24dU, 0x50ac8dbfU, 0x70529a4cU,
 456        0xead597d1U, 0x33515ba6U, 0xde48a899U, 0xdb32b7fcU,
 457        0xe39e919bU, 0xe2bb416eU, 0xa5cb6b95U, 0xa1f3b102U,
 458        0xccc41d14U, 0xc363da5dU, 0x5fdc7dcdU, 0x7f5a6c5cU,
 459        0xf726ffedU, 0xe89d6f8eU, 0x19a0f089U,
 460};
 461
 462static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
 463                         unsigned int key_len)
 464{
 465        struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
 466        const __be32 *key = (const __be32 *)in_key;
 467        u32 *flags = &tfm->crt_flags;
 468        int N, R, i, r;
 469        u32 kappa[ANUBIS_MAX_N];
 470        u32 inter[ANUBIS_MAX_N];
 471
 472        switch (key_len) {
 473                case 16: case 20: case 24: case 28:
 474                case 32: case 36: case 40:
 475                        break;
 476                default:
 477                        *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
 478                        return -EINVAL;
 479        }
 480
 481        ctx->key_len = key_len * 8;
 482        N = ctx->key_len >> 5;
 483        ctx->R = R = 8 + N;
 484
 485        /* * map cipher key to initial key state (mu): */
 486        for (i = 0; i < N; i++)
 487                kappa[i] = be32_to_cpu(key[i]);
 488
 489        /*
 490         * generate R + 1 round keys:
 491         */
 492        for (r = 0; r <= R; r++) {
 493                u32 K0, K1, K2, K3;
 494                /*
 495                 * generate r-th round key K^r:
 496                 */
 497                K0 = T4[(kappa[N - 1] >> 24)       ];
 498                K1 = T4[(kappa[N - 1] >> 16) & 0xff];
 499                K2 = T4[(kappa[N - 1] >>  8) & 0xff];
 500                K3 = T4[(kappa[N - 1]      ) & 0xff];
 501                for (i = N - 2; i >= 0; i--) {
 502                        K0 = T4[(kappa[i] >> 24)       ] ^
 503                                (T5[(K0 >> 24)       ] & 0xff000000U) ^
 504                                (T5[(K0 >> 16) & 0xff] & 0x00ff0000U) ^
 505                                (T5[(K0 >>  8) & 0xff] & 0x0000ff00U) ^
 506                                (T5[(K0      ) & 0xff] & 0x000000ffU);
 507                        K1 = T4[(kappa[i] >> 16) & 0xff] ^
 508                                (T5[(K1 >> 24)       ] & 0xff000000U) ^
 509                                (T5[(K1 >> 16) & 0xff] & 0x00ff0000U) ^
 510                                (T5[(K1 >>  8) & 0xff] & 0x0000ff00U) ^
 511                                (T5[(K1      ) & 0xff] & 0x000000ffU);
 512                        K2 = T4[(kappa[i] >>  8) & 0xff] ^
 513                                (T5[(K2 >> 24)       ] & 0xff000000U) ^
 514                                (T5[(K2 >> 16) & 0xff] & 0x00ff0000U) ^
 515                                (T5[(K2 >>  8) & 0xff] & 0x0000ff00U) ^
 516                                (T5[(K2      ) & 0xff] & 0x000000ffU);
 517                        K3 = T4[(kappa[i]      ) & 0xff] ^
 518                                (T5[(K3 >> 24)       ] & 0xff000000U) ^
 519                                (T5[(K3 >> 16) & 0xff] & 0x00ff0000U) ^
 520                                (T5[(K3 >>  8) & 0xff] & 0x0000ff00U) ^
 521                                (T5[(K3      ) & 0xff] & 0x000000ffU);
 522                }
 523
 524                ctx->E[r][0] = K0;
 525                ctx->E[r][1] = K1;
 526                ctx->E[r][2] = K2;
 527                ctx->E[r][3] = K3;
 528
 529                /*
 530                 * compute kappa^{r+1} from kappa^r:
 531                 */
 532                if (r == R)
 533                        break;
 534                for (i = 0; i < N; i++) {
 535                        int j = i;
 536                        inter[i]  = T0[(kappa[j--] >> 24)       ];
 537                        if (j < 0)
 538                                j = N - 1;
 539                        inter[i] ^= T1[(kappa[j--] >> 16) & 0xff];
 540                        if (j < 0)
 541                                j = N - 1;
 542                        inter[i] ^= T2[(kappa[j--] >>  8) & 0xff];
 543                        if (j < 0)
 544                                j = N - 1;
 545                        inter[i] ^= T3[(kappa[j  ]      ) & 0xff];
 546                }
 547                kappa[0] = inter[0] ^ rc[r];
 548                for (i = 1; i < N; i++)
 549                        kappa[i] = inter[i];
 550        }
 551
 552        /*
 553         * generate inverse key schedule: K'^0 = K^R, K'^R =
 554         *                                K^0, K'^r = theta(K^{R-r}):
 555         */
 556        for (i = 0; i < 4; i++) {
 557                ctx->D[0][i] = ctx->E[R][i];
 558                ctx->D[R][i] = ctx->E[0][i];
 559        }
 560        for (r = 1; r < R; r++) {
 561                for (i = 0; i < 4; i++) {
 562                        u32 v = ctx->E[R - r][i];
 563                        ctx->D[r][i] =
 564                                T0[T4[(v >> 24)       ] & 0xff] ^
 565                                T1[T4[(v >> 16) & 0xff] & 0xff] ^
 566                                T2[T4[(v >>  8) & 0xff] & 0xff] ^
 567                                T3[T4[(v      ) & 0xff] & 0xff];
 568                }
 569        }
 570
 571        return 0;
 572}
 573
 574static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4],
 575                u8 *ciphertext, const u8 *plaintext, const int R)
 576{
 577        const __be32 *src = (const __be32 *)plaintext;
 578        __be32 *dst = (__be32 *)ciphertext;
 579        int i, r;
 580        u32 state[4];
 581        u32 inter[4];
 582
 583        /*
 584         * map plaintext block to cipher state (mu)
 585         * and add initial round key (sigma[K^0]):
 586         */
 587        for (i = 0; i < 4; i++)
 588                state[i] = be32_to_cpu(src[i]) ^ roundKey[0][i];
 589
 590        /*
 591         * R - 1 full rounds:
 592         */
 593
 594        for (r = 1; r < R; r++) {
 595                inter[0] =
 596                        T0[(state[0] >> 24)       ] ^
 597                        T1[(state[1] >> 24)       ] ^
 598                        T2[(state[2] >> 24)       ] ^
 599                        T3[(state[3] >> 24)       ] ^
 600                        roundKey[r][0];
 601                inter[1] =
 602                        T0[(state[0] >> 16) & 0xff] ^
 603                        T1[(state[1] >> 16) & 0xff] ^
 604                        T2[(state[2] >> 16) & 0xff] ^
 605                        T3[(state[3] >> 16) & 0xff] ^
 606                        roundKey[r][1];
 607                inter[2] =
 608                        T0[(state[0] >>  8) & 0xff] ^
 609                        T1[(state[1] >>  8) & 0xff] ^
 610                        T2[(state[2] >>  8) & 0xff] ^
 611                        T3[(state[3] >>  8) & 0xff] ^
 612                        roundKey[r][2];
 613                inter[3] =
 614                        T0[(state[0]      ) & 0xff] ^
 615                        T1[(state[1]      ) & 0xff] ^
 616                        T2[(state[2]      ) & 0xff] ^
 617                        T3[(state[3]      ) & 0xff] ^
 618                        roundKey[r][3];
 619                state[0] = inter[0];
 620                state[1] = inter[1];
 621                state[2] = inter[2];
 622                state[3] = inter[3];
 623        }
 624
 625        /*
 626         * last round:
 627         */
 628
 629        inter[0] =
 630                (T0[(state[0] >> 24)       ] & 0xff000000U) ^
 631                (T1[(state[1] >> 24)       ] & 0x00ff0000U) ^
 632                (T2[(state[2] >> 24)       ] & 0x0000ff00U) ^
 633                (T3[(state[3] >> 24)       ] & 0x000000ffU) ^
 634                roundKey[R][0];
 635        inter[1] =
 636                (T0[(state[0] >> 16) & 0xff] & 0xff000000U) ^
 637                (T1[(state[1] >> 16) & 0xff] & 0x00ff0000U) ^
 638                (T2[(state[2] >> 16) & 0xff] & 0x0000ff00U) ^
 639                (T3[(state[3] >> 16) & 0xff] & 0x000000ffU) ^
 640                roundKey[R][1];
 641        inter[2] =
 642                (T0[(state[0] >>  8) & 0xff] & 0xff000000U) ^
 643                (T1[(state[1] >>  8) & 0xff] & 0x00ff0000U) ^
 644                (T2[(state[2] >>  8) & 0xff] & 0x0000ff00U) ^
 645                (T3[(state[3] >>  8) & 0xff] & 0x000000ffU) ^
 646                roundKey[R][2];
 647        inter[3] =
 648                (T0[(state[0]      ) & 0xff] & 0xff000000U) ^
 649                (T1[(state[1]      ) & 0xff] & 0x00ff0000U) ^
 650                (T2[(state[2]      ) & 0xff] & 0x0000ff00U) ^
 651                (T3[(state[3]      ) & 0xff] & 0x000000ffU) ^
 652                roundKey[R][3];
 653
 654        /*
 655         * map cipher state to ciphertext block (mu^{-1}):
 656         */
 657
 658        for (i = 0; i < 4; i++)
 659                dst[i] = cpu_to_be32(inter[i]);
 660}
 661
 662static void anubis_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 663{
 664        struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
 665        anubis_crypt(ctx->E, dst, src, ctx->R);
 666}
 667
 668static void anubis_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 669{
 670        struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
 671        anubis_crypt(ctx->D, dst, src, ctx->R);
 672}
 673
 674static struct crypto_alg anubis_alg = {
 675        .cra_name               =       "anubis",
 676        .cra_flags              =       CRYPTO_ALG_TYPE_CIPHER,
 677        .cra_blocksize          =       ANUBIS_BLOCK_SIZE,
 678        .cra_ctxsize            =       sizeof (struct anubis_ctx),
 679        .cra_alignmask          =       3,
 680        .cra_module             =       THIS_MODULE,
 681        .cra_u                  =       { .cipher = {
 682        .cia_min_keysize        =       ANUBIS_MIN_KEY_SIZE,
 683        .cia_max_keysize        =       ANUBIS_MAX_KEY_SIZE,
 684        .cia_setkey             =       anubis_setkey,
 685        .cia_encrypt            =       anubis_encrypt,
 686        .cia_decrypt            =       anubis_decrypt } }
 687};
 688
 689static int __init anubis_mod_init(void)
 690{
 691        int ret = 0;
 692
 693        ret = crypto_register_alg(&anubis_alg);
 694        return ret;
 695}
 696
 697static void __exit anubis_mod_fini(void)
 698{
 699        crypto_unregister_alg(&anubis_alg);
 700}
 701
 702module_init(anubis_mod_init);
 703module_exit(anubis_mod_fini);
 704
 705MODULE_LICENSE("GPL");
 706MODULE_DESCRIPTION("Anubis Cryptographic Algorithm");
 707
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