Maintenance script: Repair batch-0004 pages from live compare

2026-03-27T00:37:14Z

Repair batch-0004 pages from live compare

← Older revision		Revision as of 00:37, 27 March 2026
Line 11:		Line 11:
	int temp;		int temp;
	char ch;		char ch;
	char array[100];		char array[100];
	cout << "암호값 : ";		cout << "암호값 : ";
	int count = 0;		int count = 0;
Line 20:		Line 20:
	temp = (int) ch;		temp = (int) ch;
	fout << char(temp+KEY);		fout << char(temp+KEY);
	array[count] = char(temp+KEY);		array[count] = char(temp+KEY);
	count++;		count++;

Line 29:		Line 29:
	for(int j=0;j<count;j++) // 암호값 출력		for(int j=0;j<count;j++) // 암호값 출력
	{		{
	cout << array[j];		cout << array[j];
	}		}
	cout << endl;		cout << endl;
Line 39:		Line 39:
	for(int i=0;i<count;i++)		for(int i=0;i<count;i++)
	{		{
	array[i] = (array[i] + (256-KEY))%256;		array[i] = (array[i] + (256-KEY))%256;
	cout << array[i];		cout << array[i];
	}		}
	cout << endl;		cout << endl;
Line 75:		Line 75:

	----		----
	[[암호화실습]], [[데블스캠프2004/목요일]]		[[암호화실습]], 데블스캠프2004/목요일

imported>Unknown at 05:28, 7 February 2021

2021-02-07T05:28:40Z

New page

== 개인키, 공개키 (개인키 : 112, 공개키 : 144) ==
#include <fstream>
#include <iostream>
using namespace std;

const int KEY = 112;
void main()
{
ifstream fin ("source.txt");
ofstream fout ("source_enc.txt");
int temp;
char ch;
char array[100];
cout << "암호값 : ";
int count = 0;
do{
fin.get(ch);
if (fin.eof())
break;
temp = (int) ch;
fout << char(temp+KEY);
array[count] = char(temp+KEY);
count++;

}while(true);

cout << endl;

for(int j=0;j<count;j++) // 암호값 출력
{
cout << array[j];
}
cout << endl;
fout << endl;

cout << "복호값 : " << endl;

for(int i=0;i<count;i++)
{
array[i] = (array[i] + (256-KEY))%256;
cout << array[i];
}
cout << endl;
}

== 원본 알아내기 (공개키 : 156) ==
#include <fstream>
#include <iostream>
using namespace std;

const int KEY = 156;
void main()
{
ifstream fin ("source1.txt");
ofstream fout ("source1_enc.txt");
int temp;
char ch;

cout << "원본값 : ";
int count = 0;
do{
fin.get(ch);

if (fin.eof())
break;
fout << char((ch+KEY)%256);
cout << char((ch+KEY)%256);
count++;
}while(true);

cout << endl;
}

----
[[암호화실습]], [[데블스캠프2004/목요일]]

개인키,공개키/김태훈,황재선 - Revision history

Maintenance script: Repair batch-0004 pages from live compare

imported>Unknown at 05:28, 7 February 2021