ssh_modp_groups.h
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1 /**
2  * @file ssh_modp_groups.h
3  * @brief Modular exponentiation (MODP) groups
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2019-2024 Oryx Embedded SARL. All rights reserved.
10  *
11  * This file is part of CycloneSSH 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 2.4.0
29  **/
30 
31 #ifndef _SSH_MODP_GROUPS_H
32 #define _SSH_MODP_GROUPS_H
33 
34 //Dependencies
35 #include "ssh/ssh.h"
36 #include "pkc/dh.h"
37 
38 //C++ guard
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
43 
44 /**
45  * @brief Modular exponentiation (MODP) group
46  **/
47 
48 typedef struct
49 {
50  const char_t *name; ///<Group name
51  const uint8_t p[SSH_MAX_DH_MODULUS_SIZE / 8]; ///<Prime modulus
52  size_t pLen; ///<Length of the prime modulus, in bytes
53  uint8_t g; ///<Generator
55 
56 
57 //MODP groups
58 extern const SshDhModpGroup sshDhModpGroup1;
59 extern const SshDhModpGroup sshDhModpGroup14;
60 extern const SshDhModpGroup sshDhModpGroup15;
61 extern const SshDhModpGroup sshDhModpGroup16;
62 extern const SshDhModpGroup sshDhModpGroup17;
63 extern const SshDhModpGroup sshDhModpGroup18;
64 
65 //MODP group related functions
66 const SshDhModpGroup *sshGetDhModpGroup(const char_t *kexAlgo);
67 error_t sshLoadDhModpGroup(DhParameters *params, const char_t *kexAlgo);
68 
69 //C++ guard
70 #ifdef __cplusplus
71 }
72 #endif
73 
74 #endif
char char_t
Definition: compiler_port.h:48
Diffie-Hellman key exchange.
error_t
Error codes.
Definition: error.h:43
uint8_t p
Definition: ndp.h:300
Secure Shell (SSH)
#define SSH_MAX_DH_MODULUS_SIZE
Definition: ssh.h:696
const SshDhModpGroup sshDhModpGroup17
const SshDhModpGroup sshDhModpGroup15
const SshDhModpGroup sshDhModpGroup14
error_t sshLoadDhModpGroup(DhParameters *params, const char_t *kexAlgo)
Load Diffie-Hellman parameters.
const SshDhModpGroup sshDhModpGroup16
const SshDhModpGroup * sshGetDhModpGroup(const char_t *kexAlgo)
Get the MODP group that matches the specified key exchange algorithm.
const SshDhModpGroup sshDhModpGroup18
const SshDhModpGroup sshDhModpGroup1
Diffie-Hellman parameters.
Definition: dh.h:49
Modular exponentiation (MODP) group.
uint8_t g
Generator.
const char_t * name
Group name.
size_t pLen
Length of the prime modulus, in bytes.