camellia.h
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1 /**
2  * @file camellia.h
3  * @brief Camellia encryption algorithm
4  *
5  * @section License
6  *
7  * Copyright (C) 2010-2018 Oryx Embedded SARL. All rights reserved.
8  *
9  * This file is part of CycloneCrypto Open.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License
13  * as published by the Free Software Foundation; either version 2
14  * of the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software Foundation,
23  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24  *
25  * @author Oryx Embedded SARL (www.oryx-embedded.com)
26  * @version 1.9.0
27  **/
28 
29 #ifndef _CAMELLIA_H
30 #define _CAMELLIA_H
31 
32 //Dependencies
33 #include "core/crypto.h"
34 
35 //Camellia block size
36 #define CAMELLIA_BLOCK_SIZE 16
37 //Common interface for encryption algorithms
38 #define CAMELLIA_CIPHER_ALGO (&camelliaCipherAlgo)
39 
40 //C++ guard
41 #ifdef __cplusplus
42  extern "C" {
43 #endif
44 
45 
46 /**
47  * @brief Structure describing subkey generation
48  **/
49 
50 typedef struct
51 {
52  uint8_t index;
53  uint8_t key;
54  uint8_t shift;
55  uint8_t position;
57 
58 
59 /**
60  * @brief Camellia algorithm context
61  **/
62 
63 typedef struct
64 {
66  uint32_t k[16];
67  uint32_t ks[68];
69 
70 
71 //Camellia related constants
72 extern const CipherAlgo camelliaCipherAlgo;
73 
74 //Camellia related functions
75 error_t camelliaInit(CamelliaContext *context, const uint8_t *key, size_t keyLen);
76 void camelliaEncryptBlock(CamelliaContext *context, const uint8_t *input, uint8_t *output);
77 void camelliaDecryptBlock(CamelliaContext *context, const uint8_t *input, uint8_t *output);
78 
79 //C++ guard
80 #ifdef __cplusplus
81  }
82 #endif
83 
84 #endif
error_t camelliaInit(CamelliaContext *context, const uint8_t *key, size_t keyLen)
Initialize a Camellia context using the supplied key.
Definition: camellia.c:299
General definitions for cryptographic algorithms.
Common interface for encryption algorithms.
Definition: crypto.h:1073
uint8_t position
Definition: camellia.h:55
void camelliaEncryptBlock(CamelliaContext *context, const uint8_t *input, uint8_t *output)
Encrypt a 16-byte block using Camellia algorithm.
Definition: camellia.c:427
void camelliaDecryptBlock(CamelliaContext *context, const uint8_t *input, uint8_t *output)
Decrypt a 16-byte block using Camellia algorithm.
Definition: camellia.c:492
Structure describing subkey generation.
Definition: camellia.h:50
error_t
Error codes.
Definition: error.h:40
unsigned int uint_t
Definition: compiler_port.h:43
uint8_t key
Definition: camellia.h:53
uint8_t shift
Definition: camellia.h:54
uint8_t index
Definition: camellia.h:52
const CipherAlgo camelliaCipherAlgo
Definition: camellia.c:277
Camellia algorithm context.
Definition: camellia.h:63