ssh_kex_rsa.h
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1 /**
2  * @file ssh_kex_rsa.h
3  * @brief RSA 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 2.4.4
29  **/
30 
31 #ifndef _SSH_KEX_RSA_H
32 #define _SSH_KEX_RSA_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
44 
46  const SshBinaryString *transientRsaPublicKey);
47 
49 
50 error_t sshFormatKexRsaPubKey(SshConnection *connection, uint8_t *p,
51  size_t *length);
52 
54  const SshBinaryString *transientRsaPublicKey, uint8_t *p, size_t *length);
55 
56 error_t sshFormatKexRsaDone(SshConnection *connection, uint8_t *p,
57  size_t *length);
58 
59 error_t sshParseKexRsaPubKey(SshConnection *connection, const uint8_t *message,
60  size_t length);
61 
62 error_t sshParseKexRsaSecret(SshConnection *connection, const uint8_t *message,
63  size_t length);
64 
65 error_t sshParseKexRsaDone(SshConnection *connection, const uint8_t *message,
66  size_t length);
67 
68 error_t sshParseKexRsaMessage(SshConnection *connection, uint8_t type,
69  const uint8_t *message, size_t length);
70 
71 int_t sshSelectTransientRsaKey(SshContext *context, const char_t *kexAlgo);
72 
74  size_t *written);
75 
77  const SshBinaryString *transientRsaPublicKey, uint8_t *encryptedSecret,
78  size_t *encryptedSecretLen);
79 
81  const uint8_t *encryptedSecret, size_t encryptedSecretLen);
82 
83 //C++ guard
84 #ifdef __cplusplus
85 }
86 #endif
87 
88 #endif
error_t sshParseKexRsaDone(SshConnection *connection, const uint8_t *message, size_t length)
Parse SSH_MSG_KEXRSA_DONE message.
Definition: ssh_kex_rsa.c:596
error_t sshParseKexRsaSecret(SshConnection *connection, const uint8_t *message, size_t length)
Parse SSH_MSG_KEXRSA_SECRET message.
Definition: ssh_kex_rsa.c:510
error_t sshFormatKexRsaPubKey(SshConnection *connection, uint8_t *p, size_t *length)
Format SSH_MSG_KEXRSA_PUBKEY message.
Definition: ssh_kex_rsa.c:217
error_t sshEncryptSharedSecret(SshConnection *connection, const SshBinaryString *transientRsaPublicKey, uint8_t *encryptedSecret, size_t *encryptedSecretLen)
Encrypt shared secret using RSAES-OAEP.
Definition: ssh_kex_rsa.c:866
signed int int_t
Definition: compiler_port.h:49
Binary string.
Definition: ssh_types.h:67
error_t sshParseKexRsaPubKey(SshConnection *connection, const uint8_t *message, size_t length)
Parse SSH_MSG_KEXRSA_PUBKEY message.
Definition: ssh_kex_rsa.c:390
uint8_t p
Definition: ndp.h:300
uint8_t message[]
Definition: chap.h:154
error_t sshFormatKexRsaSecret(SshConnection *connection, const SshBinaryString *transientRsaPublicKey, uint8_t *p, size_t *length)
Format SSH_MSG_KEXRSA_SECRET message.
Definition: ssh_kex_rsa.c:283
uint8_t type
Definition: coap_common.h:176
error_t sshParseKexRsaMessage(SshConnection *connection, uint8_t type, const uint8_t *message, size_t length)
Parse Diffie-Hellman specific messages.
Definition: ssh_kex_rsa.c:680
error_t sshFormatKexRsaDone(SshConnection *connection, uint8_t *p, size_t *length)
Format SSH_MSG_KEXRSA_DONE message.
Definition: ssh_kex_rsa.c:336
#define SshContext
Definition: ssh.h:870
error_t
Error codes.
Definition: error.h:43
error_t sshSendKexRsaDone(SshConnection *connection)
Send SSH_MSG_KEXRSA_DONE message.
Definition: ssh_kex_rsa.c:169
uint8_t length
Definition: tcp.h:368
error_t sshSendKexRsaPubKey(SshConnection *connection)
Send SSH_MSG_KEXRSA_PUBKEY message.
Definition: ssh_kex_rsa.c:61
char char_t
Definition: compiler_port.h:48
int_t sshSelectTransientRsaKey(SshContext *context, const char_t *kexAlgo)
Select a transient RSA key.
Definition: ssh_kex_rsa.c:744
#define SshConnection
Definition: ssh.h:874
error_t sshSendKexRsaSecret(SshConnection *connection, const SshBinaryString *transientRsaPublicKey)
Send SSH_MSG_KEXRSA_SECRET message.
Definition: ssh_kex_rsa.c:121
error_t sshDecryptSharedSecret(SshConnection *connection, const uint8_t *encryptedSecret, size_t encryptedSecretLen)
Decrypt shared secret using RSAES-OAEP.
Definition: ssh_kex_rsa.c:971
error_t sshFormatTransientRsaPublicKey(SshConnection *connection, uint8_t *p, size_t *written)
Format transient RSA public key.
Definition: ssh_kex_rsa.c:803
Secure Shell (SSH)