trivium.h
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1 /**
2  * @file trivium.h
3  * @brief Trivium stream cipher
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2010-2024 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 2.4.4
29  **/
30 
31 #ifndef _TRIVIUM_H
32 #define _TRIVIUM_H
33 
34 //Dependencies
35 #include "core/crypto.h"
36 
37 //C++ guard
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 
43 /**
44  * @brief Trivium algorithm context
45  **/
46 
47 typedef struct
48 {
49  uint8_t s[36];
50 } TriviumContext;
51 
52 
53 //Trivium related functions
54 error_t triviumInit(TriviumContext *context, const uint8_t *key,
55  size_t keyLen, const uint8_t *iv, size_t ivLen);
56 
57 void triviumCipher(TriviumContext *context, const uint8_t *input,
58  uint8_t *output, size_t length);
59 
60 uint8_t triviumGenerateBit(TriviumContext *context);
61 uint8_t triviumGenerateByte(TriviumContext *context);
62 
63 void triviumDeinit(TriviumContext *context);
64 
65 //C++ guard
66 #ifdef __cplusplus
67 }
68 #endif
69 
70 #endif
triviumDeinit
void triviumDeinit(TriviumContext *context)
Release Trivium context.
Definition: trivium.c:239
triviumCipher
void triviumCipher(TriviumContext *context, const uint8_t *input, uint8_t *output, size_t length)
Encrypt/decrypt data with the Trivium algorithm.
Definition: trivium.c:117
error_t
error_t
Error codes.
Definition: error.h:43
crypto.h
General definitions for cryptographic algorithms.
triviumInit
error_t triviumInit(TriviumContext *context, const uint8_t *key, size_t keyLen, const uint8_t *iv, size_t ivLen)
Initialize Trivium context using the supplied key and IV.
Definition: trivium.c:59
iv
uint8_t iv[]
Definition: ike.h:1502
TriviumContext
Trivium algorithm context.
Definition: trivium.h:48
length
uint8_t length
Definition: tcp.h:368
triviumGenerateBit
uint8_t triviumGenerateBit(TriviumContext *context)
Generate one bit of key stream.
Definition: trivium.c:154
s
uint8_t s
Definition: igmp_common.h:234
triviumGenerateByte
uint8_t triviumGenerateByte(TriviumContext *context)
Generate one byte of key stream.
Definition: trivium.c:215