imported>Unknown at 05:28, 7 February 2021

2021-02-07T05:28:42Z

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== 개인키,공개키/김회영,권정욱 ==

#include <iostream>
#include <fstream>
using namespace std;
const int key = 50;
const int askii = 256;

int main(){
char secret[30];
cout << "암호화할 텍스트를 입력하세요 : ";
cin >> secret;
ifstream fin(secret);
ofstream fout("source_enc.txt");

char ch;
char text;

fin.get(text);

cout << "암호화를 실행합니다.\n";

while (!fin.eof()){
ch = text + key;
if (int(ch)> 255) ch = ch % askii;
if (text == '\n') {
cout << endl;
fout << endl;
}
else{
cout << ch;
fout << ch;
}
fin.get(text);
}
cout << endl;
fout << endl;

fin.close();
fout.close();

char unsecret[30];
int key2;

cout << "복호화할 텍스트를 입력하세요 공개키를 입력하세요 : ";
cin >> unsecret >> key2;
ifstream ffin(unsecret);
ofstream ffout("resource_enc.txt");

ffin.get(text);

cout << "복호화를 실행합니다.\n";

while (!ffin.eof()){
ch = (text + key2) % askii;
if (text == '\n') {
cout << endl;
ffout << endl;
}
else{
cout << ch;
ffout << ch;
}
ffin.get(text);
}

return 0;
}

개인키,공개키/김회영,권정욱 - Revision history

imported>Unknown at 05:28, 7 February 2021