dcodeandencodedlg.cpp

字符串加密解密！算法很简单！抛砖引玉之用！请不要扔板砖！

#include "stdafx.h"
#include "DCODEANDENCODE.h"
#include "DCODEANDENCODEDlg.h"


CDCODEANDENCODEDlg::CDCODEANDENCODEDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDCODEANDENCODEDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

BEGIN_MESSAGE_MAP(CDCODEANDENCODEDlg, CDialog)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ENCODE, OnBnClickedEncode)
	ON_BN_CLICKED(IDC_DECODE, OnBnClickedDecode)
END_MESSAGE_MAP()


BOOL CDCODEANDENCODEDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	SetIcon(m_hIcon, TRUE);			
	SetIcon(m_hIcon, FALSE);	
	
	return TRUE;  
}


void CDCODEANDENCODEDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CDCODEANDENCODEDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void CDCODEANDENCODEDlg::OnBnClickedEncode()
{
	CString szInPut = "";
	CString szOutPut = "";

	GetDlgItemText(IDC_INPUT,szInPut);

	if(szInPut.IsEmpty())
	{
		MessageBox("请输入要加密的字符串","提示");
	}
	else
	{
		szOutPut = AddEnc(szInPut,11);
		SetDlgItemText(IDC_OUTPUT,szOutPut);
	}
}

void CDCODEANDENCODEDlg::OnBnClickedDecode()
{
	CString szInPut = "";
	CString szOutPut = "";

	GetDlgItemText(IDC_OUTPUT,szOutPut);

	if(szOutPut.IsEmpty())
	{
		MessageBox("请输入要解密的字符串","提示");
	}
	else
	{
		szInPut = AddDec(szOutPut,11);

		SetDlgItemText(IDC_INPUT,szInPut);
	}
}




//加法加密
CString CDCODEANDENCODEDlg::AddEnc(CString szString,BYTE key)
{
	char szTemp[1024]={0};
	CString sz="";

	if(szString.GetLength()>1024)
		return NULL;
	for(int iIndex =0;iIndex<szString.GetLength();iIndex++)
	{
		szTemp[iIndex] = szString.GetAt(iIndex)^key;
	}

	sz.Format("%s",szTemp);

	return sz;
}
//加法解密

CString CDCODEANDENCODEDlg::AddDec(CString szString,BYTE key)
{
	char szTemp[1024]={0};
	CString sz="";

	if(szString.GetLength()>1024)
		return NULL;

	for(int iIndex =0;iIndex<szString.GetLength();iIndex++)
	{
		szTemp[iIndex] = szString.GetAt(iIndex)^key;
	}

	sz.Format("%s",szTemp);
	return sz;
}