blob: d321da6315a66fb5b9ef25f9b869ed43ab525e62 (
plain)
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
|
/***************************************************************************
* *
* Header file for rc2 implementation by Matthew Palmer <mjp16@uow.edu.au> *
* Modified to run with PwM by Michael Buesch <mbuesch@freenet.de> *
* *
* 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. *
* *
***************************************************************************/
/***************************************************************************
* copyright (C) 2004 by Ulf Schenk
* This file is originaly based on version 1.0.1 of pwmanager
* and was modified to run on embedded devices that run microkde
*
* $Id$
**************************************************************************/
#ifndef RC2_H
#define RC2_H
/** implementation of the RC2 encryption algorithm. */
class Rc2
{
public:
Rc2();
~Rc2();
void rc2_expandkey(char key[], int length, int ekl);
void rc2_encrypt(unsigned short input[4]);
void rc2_decrypt(unsigned short input[4]);
protected:
void _rc2_mix(unsigned short *);
void _rc2_mash(unsigned short *);
void _rc2_rmix(unsigned short *);
void _rc2_rmash(unsigned short *);
int _rc2_pow(int, int);
unsigned short _rc2_ror(unsigned short, int);
unsigned short _rc2_rol(unsigned short, int);
protected:
/** Expanded Key */
unsigned char _rc2_expkey[128];
/** global integer variable used in mixing */
int _rc2_counter;
};
#endif
|
