poly1305.h
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1 /**
2  * @file poly1305.h
3  * @brief Poly1305 message-authentication code
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 _POLY1305_H
30 #define _POLY1305_H
31 
32 //Dependencies
33 #include "core/crypto.h"
34 
35 //C++ guard
36 #ifdef __cplusplus
37  extern "C" {
38 #endif
39 
40 
41 /**
42  * @brief Poly1305 context
43  **/
44 
45 typedef struct
46 {
47  uint32_t r[4];
48  uint32_t s[4];
49  uint64_t a[8];
50  uint8_t buffer[17];
51  size_t size;
53 
54 
55 //Poly1305 related functions
56 void poly1305Init(Poly1305Context *context, const uint8_t *key);
57 void poly1305Update(Poly1305Context *context, const void *data, size_t length);
58 void poly1305Final(Poly1305Context *context, uint8_t *tag);
59 
61 
62 //C++ guard
63 #ifdef __cplusplus
64  }
65 #endif
66 
67 #endif
void poly1305Final(Poly1305Context *context, uint8_t *tag)
Finalize Poly1305 message-authentication code computation.
Definition: poly1305.c:125
void poly1305Update(Poly1305Context *context, const void *data, size_t length)
Update Poly1305 message-authentication code computation.
Definition: poly1305.c:87
General definitions for cryptographic algorithms.
Poly1305 context.
Definition: poly1305.h:45
void poly1305Init(Poly1305Context *context, const uint8_t *key)
Initialize Poly1305 message-authentication code computation.
Definition: poly1305.c:47
uint8_t a
Definition: ndp.h:407
size_t size
Definition: poly1305.h:51
uint8_t s
uint8_t data[]
Definition: dtls_misc.h:167
uint32_t r
Definition: ndp.h:342
uint8_t length
Definition: dtls_misc.h:140
void poly1305ProcessBlock(Poly1305Context *context)
Process message in 16-byte blocks.
Definition: poly1305.c:211