ssh_kex_ecdh.h
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1 /**
2  * @file ssh_kex_ecdh.h
3  * @brief ECDH key exchange
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_KEX_ECDH_H
32 #define _SSH_KEX_ECDH_H
33 
34 //Dependencies
35 #include "ssh/ssh.h"
36 
37 //C++ guard
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 //SSH related functions
45 
46 error_t sshFormatKexEcdhReply(SshConnection *connection, uint8_t *p,
47  size_t *length);
48 
49 error_t sshFormatKexEcdhInit(SshConnection *connection, uint8_t *p,
50  size_t *length);
51 
52 error_t sshParseKexEcdhInit(SshConnection *connection, const uint8_t *message,
53  size_t length);
54 
55 error_t sshParseKexEcdhReply(SshConnection *connection, const uint8_t *message,
56  size_t length);
57 
59  const uint8_t *message, size_t length);
60 
61 error_t sshLoadKexEcdhParams(EcDomainParameters *params, const char_t *kexAlgo);
65 
66 //C++ guard
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif
uint8_t message[]
Definition: chap.h:154
uint8_t type
Definition: coap_common.h:176
char char_t
Definition: compiler_port.h:48
error_t
Error codes.
Definition: error.h:43
uint8_t p
Definition: ndp.h:300
Secure Shell (SSH)
#define SshConnection
Definition: ssh.h:883
error_t sshLoadKexEcdhParams(EcDomainParameters *params, const char_t *kexAlgo)
Load the EC parameters that match specified key exchange algorithm.
Definition: ssh_kex_ecdh.c:635
error_t sshGenerateEcdhKeyPair(SshConnection *connection)
ECDH key pair generation.
Definition: ssh_kex_ecdh.c:709
error_t sshSendKexEcdhReply(SshConnection *connection)
Send SSH_MSG_KEX_ECDH_REPLY message.
Definition: ssh_kex_ecdh.c:119
error_t sshDigestClientEcdhPublicKey(SshConnection *connection)
Update exchange hash with client's ephemeral public key.
Definition: ssh_kex_ecdh.c:801
error_t sshParseKexEcdhReply(SshConnection *connection, const uint8_t *message, size_t length)
Parse SSH_MSG_KEX_ECDH_REPLY message.
Definition: ssh_kex_ecdh.c:406
error_t sshParseKexEcdhMessage(SshConnection *connection, uint8_t type, const uint8_t *message, size_t length)
Parse ECDH specific messages.
Definition: ssh_kex_ecdh.c:576
error_t sshComputeEcdhSharedSecret(SshConnection *connection)
ECDH shared secret calculation.
Definition: ssh_kex_ecdh.c:751
error_t sshFormatKexEcdhInit(SshConnection *connection, uint8_t *p, size_t *length)
Format SSH_MSG_KEX_ECDH_INIT message.
Definition: ssh_kex_ecdh.c:174
error_t sshFormatKexEcdhReply(SshConnection *connection, uint8_t *p, size_t *length)
Format SSH_MSG_KEX_ECDH_REPLY message.
Definition: ssh_kex_ecdh.c:221
error_t sshSendKexEcdhInit(SshConnection *connection)
Send SSH_MSG_KEX_ECDH_INIT message.
Definition: ssh_kex_ecdh.c:58
error_t sshParseKexEcdhInit(SshConnection *connection, const uint8_t *message, size_t length)
Parse SSH_MSG_KEX_ECDH_INIT message.
Definition: ssh_kex_ecdh.c:319
EC domain parameters.
Definition: ec.h:76
uint8_t length
Definition: tcp.h:368