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
|
// Copyright(c)'1994-2009 by The Givaro group
// This file is part of Givaro.
// Givaro is governed by the CeCILL-B license under French law
// and abiding by the rules of distribution of free software.
// see the COPYRIGHT file for more details.
/*! @file examples/Integer/RSA_decipher.C
* @ingroup examples
* @ingroup integers
* @example examples/Integer/RSA_decipher.C
* @brief NO DOC
*/
#include <iostream>
#include <fstream>
#include "givaro/givintrsa.h"
#include "givaro/givrandom.h"
#include "givaro/givtimer.h"
// RSA, in CBC mode, deciphering of files
using namespace Givaro;
int main(int argc, char** argv)
{
Timer tim;
tim.clear();
IntRSADom<GivRandom>::Rep n,e,d;
if (argc > 3)
n = Integer( argv[3] );
else
std::cin >> e;
if (argc > 4)
e = Integer( argv[4] );
else
std::cin >> e;
if (argc > 5)
d = Integer( argv[5] );
else
std::cin >> d;
IntRSADom<GivRandom> IR(n,e,d);
std::ifstream TXT(argv[1]);
if (!TXT) { std::cerr << "Error opening input file: " << argv[1] << std::endl; return -1; }
std::ofstream OUT(argv[2]);
if (!OUT) { std::cerr << "Error opening output file: " << argv[2] << std::endl; return -1; }
tim.start();
IR.decipher( OUT, TXT );
OUT.close();
TXT.close();
tim.stop();
std::cerr << tim << std::endl;
return 0;
}
/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:sts=4:sw=4:ts=4:et:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
|
