1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007 anytun.org <satp@wirdorange.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _CYPHER_H_
#define _CYPHER_H_
#include "datatypes.h"
#include "buffer.h"
class Cypher
{
public:
Cypher() {};
virtual ~Cypher() {};
void cypher(Buffer& buf, seq_nr_t seq_nr, sender_id_t sender_id);
protected:
void exor(Buffer& buf, const Buffer& bit_stream);
virtual Buffer getBitStream(u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id) = 0;
};
class NullCypher : public Cypher
{
protected:
Buffer getBitStream(u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id);
};
class AesIcmCypher : public Cypher
{
public:
// AesIcmCypher() {};
// ~AesIcmCypher() {};
void cypher(Buffer& buf, seq_nr_t seq_nr, sender_id_t sender_id);
protected:
Buffer getBitStream(u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id) { return Buffer(); };
};
#endif
|
