camellia.h

00001 /**
00002  * @file camellia.h
00003  * @brief Camellia encryption algorithm
00004  *
00005  * @section License
00006  *
00007  * Copyright (C) 2010-2017 Oryx Embedded SARL. All rights reserved.
00008  *
00009  * This file is part of CycloneCrypto Open.
00010  *
00011  * This program is free software; you can redistribute it and/or
00012  * modify it under the terms of the GNU General Public License
00013  * as published by the Free Software Foundation; either version 2
00014  * of the License, or (at your option) any later version.
00015  *
00016  * This program is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU General Public License
00022  * along with this program; if not, write to the Free Software Foundation,
00023  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00024  *
00025  * @author Oryx Embedded SARL (www.oryx-embedded.com)
00026  * @version 1.7.6
00027  **/
00028 
00029 #ifndef _CAMELLIA_H
00030 #define _CAMELLIA_H
00031 
00032 //Dependencies
00033 #include "crypto.h"
00034 
00035 //Camellia block size
00036 #define CAMELLIA_BLOCK_SIZE 16
00037 //Common interface for encryption algorithms
00038 #define CAMELLIA_CIPHER_ALGO (&camelliaCipherAlgo)
00039 
00040 
00041 /**
00042  * @brief Structure describing subkey generation
00043  **/
00044 
00045 typedef struct
00046 {
00047    uint8_t index;
00048    uint8_t key;
00049    uint8_t shift;
00050    uint8_t position;
00051 } CamelliaSubkey;
00052 
00053 
00054 /**
00055  * @brief Camellia algorithm context
00056  **/
00057 
00058 typedef struct
00059 {
00060    uint_t nr;
00061    uint32_t k[16];
00062    uint32_t ks[68];
00063 } CamelliaContext;
00064 
00065 
00066 //Camellia related constants
00067 extern const CipherAlgo camelliaCipherAlgo;
00068 
00069 //Camellia related functions
00070 error_t camelliaInit(CamelliaContext *context, const uint8_t *key, size_t keyLength);
00071 void camelliaEncryptBlock(CamelliaContext *context, const uint8_t *input, uint8_t *output);
00072 void camelliaDecryptBlock(CamelliaContext *context, const uint8_t *input, uint8_t *output);
00073 
00074 #endif
00075