des3.h
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1 /**
2  * @file des3.h
3  * @brief Triple DES (Triple Data Encryption Algorithm)
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2010-2019 Oryx Embedded SARL. All rights reserved.
10  *
11  * This file is part of CycloneCrypto Open.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License
15  * as published by the Free Software Foundation; either version 2
16  * of the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software Foundation,
25  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26  *
27  * @author Oryx Embedded SARL (www.oryx-embedded.com)
28  * @version 1.9.6
29  **/
30 
31 #ifndef _DES3_H
32 #define _DES3_H
33 
34 //Dependencies
35 #include "core/crypto.h"
36 #include "cipher/des.h"
37 
38 //Triple DES block size
39 #define DES3_BLOCK_SIZE 8
40 //Common interface for encryption algorithms
41 #define DES3_CIPHER_ALGO (&des3CipherAlgo)
42 
43 //C++ guard
44 #ifdef __cplusplus
45 extern "C" {
46 #endif
47 
48 
49 /**
50  * @brief Triple DES algorithm context
51  **/
52 
53 typedef struct
54 {
58 } Des3Context;
59 
60 
61 //Triple DES related constants
62 extern const CipherAlgo des3CipherAlgo;
63 
64 //Triple DES related functions
65 error_t des3Init(Des3Context *context, const uint8_t *key, size_t keyLen);
66 void des3EncryptBlock(Des3Context *context, const uint8_t *input, uint8_t *output);
67 void des3DecryptBlock(Des3Context *context, const uint8_t *input, uint8_t *output);
68 
69 //C++ guard
70 #ifdef __cplusplus
71 }
72 #endif
73 
74 #endif
void des3EncryptBlock(Des3Context *context, const uint8_t *input, uint8_t *output)
Encrypt a 8-byte block using Triple DES algorithm.
Definition: des3.c:120
const CipherAlgo des3CipherAlgo
Definition: des3.c:48
DesContext k1
Definition: des3.h:55
error_t des3Init(Des3Context *context, const uint8_t *key, size_t keyLen)
Initialize a Triple DES context using the supplied key.
Definition: des3.c:70
DES algorithm context.
Definition: des.h:52
error_t
Error codes.
Definition: error.h:42
General definitions for cryptographic algorithms.
DesContext k3
Definition: des3.h:57
DES (Data Encryption Standard)
Triple DES algorithm context.
Definition: des3.h:53
void des3DecryptBlock(Des3Context *context, const uint8_t *input, uint8_t *output)
Decrypt a 8-byte block using Triple DES algorithm.
Definition: des3.c:138
Common interface for encryption algorithms.
Definition: crypto.h:1150
DesContext k2
Definition: des3.h:56