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decryptor.cpp
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decryptor.cpp
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// Copyright (c) 2004, Jeff Davies (editor@aliensarehere.com)
//
//You may distribute under the terms of the GNU General Public License as
//specified in the licence file that comes with the TRUSTKEY source
//distribution.
#include <fstream>
#include <stdlib.h>
#include <string>
# include <iostream>
using namespace std;
int main()
{
int dict_max=100, msg_max=50, block_size=10000;
ifstream fkey ("key.txt");
fkey >> dict_max;
fkey >> msg_max;
fkey >> block_size;
fkey.close();
{
string dictionary[dict_max];
int dictionary_index[dict_max];
int dictionary_flag[dict_max];
int message[msg_max];
int message_positions[msg_max];
int message_offsets[msg_max];
int random_block[block_size];
int count,i,find,found;
string word;
ifstream dictidx ("dictionary_index.txt");
count=0;
while ((dictidx.eof()==false) && (count < dict_max))
{ dictidx >> dictionary_index[count] ; count++; };
dictidx.close();
ifstream dict ("dictionary.txt");
count=0;
while ((dict.eof()==false) && (count < dict_max))
{ dict >> dictionary[count] ; count++; };
dict.close();
ifstream mo ("message_offsets.txt");
ifstream mp ("message_positions.txt");
for(i=0;i<(msg_max);i++) {
mo >> message_offsets[i];
mp >> message_positions[i];
};
mo.close(); mp.close();
ifstream rb ("random.txt"); int rbd;
for(i=0;i<block_size;i++) rb >> random_block[i];
rb.close();
for(i=0;i<msg_max;i++)
message[i]=random_block[message_positions[i]]-message_offsets[i];
char *crlf="\r\n";
ofstream msgo ("message-out.txt");
for(i=0;i<msg_max;i++) msgo << dictionary[dictionary_index[message[i]]] << crlf;
msgo.close();
};
} //end of main context