linux-imx

/*

 * Cryptographic API.

 *

 * Anubis Algorithm

 *

 * The Anubis algorithm was developed by Paulo S. L. M. Barreto and

 * Vincent Rijmen.

 *

 * See

 *

 *  P.S.L.M. Barreto, V. Rijmen,

 *  ``The Anubis block cipher,''

 *  NESSIE submission, 2000.

 *

 * This software implements the "tweaked" version of Anubis.

 * Only the S-box and (consequently) the rounds constants have been

 * changed.

 *

 * The original authors have disclaimed all copyright interest in this

 * code and thus put it in the public domain. The subsequent authors

 * have put this under the GNU General Public License.

 *

 * By Aaron Grothe ajgrothe@yahoo.com, October 28, 2004

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 */

​

#include <linux/init.h>

#include <linux/module.h>

#include <linux/mm.h>

#include <asm/byteorder.h>

#include <linux/crypto.h>

#include <linux/types.h>

​

#define ANUBIS_MIN_KEY_SIZE 16

#define ANUBIS_MAX_KEY_SIZE 40

#define ANUBIS_BLOCK_SIZE   16

#define ANUBIS_MAX_N        10

#define ANUBIS_MAX_ROUNDS   (8 + ANUBIS_MAX_N)

​

struct anubis_ctx {

    int key_len; // in bits

    int R;

    u32 E[ANUBIS_MAX_ROUNDS + 1][4];

    u32 D[ANUBIS_MAX_ROUNDS + 1][4];

};

​

static const u32 T0[256] = {

    0xba69d2bbU, 0x54a84de5U, 0x2f5ebce2U, 0x74e8cd25U,

    0x53a651f7U, 0xd3bb6bd0U, 0xd2b96fd6U, 0x4d9a29b3U,

    0x50a05dfdU, 0xac458acfU, 0x8d070e09U, 0xbf63c6a5U,

    0x70e0dd3dU, 0x52a455f1U, 0x9a29527bU, 0x4c982db5U,

    0xeac98f46U, 0xd5b773c4U, 0x97336655U, 0xd1bf63dcU,

    0x3366ccaaU, 0x51a259fbU, 0x5bb671c7U, 0xa651a2f3U,

    0xdea15ffeU, 0x48903dadU, 0xa84d9ad7U, 0x992f5e71U,

    0xdbab4be0U, 0x3264c8acU, 0xb773e695U, 0xfce5d732U,

    0xe3dbab70U, 0x9e214263U, 0x913f7e41U, 0x9b2b567dU,

    0xe2d9af76U, 0xbb6bd6bdU, 0x4182199bU, 0x6edca579U,

    0xa557aef9U, 0xcb8b0b80U, 0x6bd6b167U, 0x95376e59U,

    0xa15fbee1U, 0xf3fbeb10U, 0xb17ffe81U, 0x0204080cU,

    0xcc851792U, 0xc49537a2U, 0x1d3a744eU, 0x14285078U,

    0xc39b2bb0U, 0x63c69157U, 0xdaa94fe6U, 0x5dba69d3U,

    0x5fbe61dfU, 0xdca557f2U, 0x7dfae913U, 0xcd871394U,

    0x7ffee11fU, 0x5ab475c1U, 0x6cd8ad75U, 0x5cb86dd5U,

    0xf7f3fb08U, 0x264c98d4U, 0xffe3db38U, 0xedc79354U,

    0xe8cd874aU, 0x9d274e69U, 0x6fdea17fU, 0x8e010203U,

    0x19326456U, 0xa05dbae7U, 0xf0fde71aU, 0x890f1e11U,

    0x0f1e3c22U, 0x070e1c12U, 0xaf4386c5U, 0xfbebcb20U,

    0x08102030U, 0x152a547eU, 0x0d1a342eU, 0x04081018U,

    0x01020406U, 0x64c88d45U, 0xdfa35bf8U, 0x76ecc529U,

    0x79f2f90bU, 0xdda753f4U, 0x3d7af48eU, 0x162c5874U,

    0x3f7efc82U, 0x376edcb2U, 0x6ddaa973U, 0x3870e090U,

    0xb96fdeb1U, 0x73e6d137U, 0xe9cf834cU, 0x356ad4beU,

    0x55aa49e3U, 0x71e2d93bU, 0x7bf6f107U, 0x8c050a0fU,

    0x72e4d531U, 0x880d1a17U, 0xf6f1ff0eU, 0x2a54a8fcU,

    0x3e7cf884U, 0x5ebc65d9U, 0x274e9cd2U, 0x468c0589U,

    0x0c183028U, 0x65ca8943U, 0x68d0bd6dU, 0x61c2995bU,

    0x03060c0aU, 0xc19f23bcU, 0x57ae41efU, 0xd6b17fceU,

    0xd9af43ecU, 0x58b07dcdU, 0xd8ad47eaU, 0x66cc8549U,

    0xd7b37bc8U, 0x3a74e89cU, 0xc88d078aU, 0x3c78f088U,

    0xfae9cf26U, 0x96316253U, 0xa753a6f5U, 0x982d5a77U,

    0xecc59752U, 0xb86ddab7U, 0xc7933ba8U, 0xae4182c3U,

    0x69d2b96bU, 0x4b9631a7U, 0xab4b96ddU, 0xa94f9ed1U,

    0x67ce814fU, 0x0a14283cU, 0x478e018fU, 0xf2f9ef16U,

    0xb577ee99U, 0x224488ccU, 0xe5d7b364U, 0xeec19f5eU,

    0xbe61c2a3U, 0x2b56acfaU, 0x811f3e21U, 0x1224486cU,

    0x831b362dU, 0x1b366c5aU, 0x0e1c3824U, 0x23468ccaU,

    0xf5f7f304U, 0x458a0983U, 0x214284c6U, 0xce811f9eU,