// DES加解密算法2Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "DES加解密算法2.h"
#include "DES加解密算法2Dlg.h"

#include "memory.h"
#include "string.h"
#include "stdio.h"

enum {ENCRYPT,DECRYPT};
//enum bool{false,true}; // if bool is not supported,use this or just replace with char
// and use 1 for true,0 for false;
//////////////////////////////////////////////////////////////////////////

// Type—ENCRYPT:加密,DECRYPT:解密
// 输出缓冲区(Out)的长度 >= ((datalen+7)/8)*8,即比datalen大的且是8的倍数的最小正整数
// In 可以= Out,此时加/解密后将覆盖输入缓冲区(In)的内容
// 当keylen>8时系统自动使用3次DES加/解密,否则使用标准DES加/解密.超过16字节后只取前16字节

bool Des_Go(char *Out,char *In,long datalen,const char *Key,int keylen,bool Type = ENCRYPT);

//////////////////////////////////////////////////////////////////////////

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA

// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDES2Dlg dialog

CDES2Dlg::CDES2Dlg(CWnd* pParent /*=NULL*/)
: CDialog(CDES2Dlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDES2Dlg)
m_hfmingwen = _T("");
m_miwen = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDES2Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDES2Dlg)
DDX_Control(pDX, IDC_EDIT2, m_miyao);
DDX_Control(pDX, IDC_EDIT1, m_mingwen);
DDX_Text(pDX, IDC_EDIT4, m_hfmingwen);
DDX_Text(pDX, IDC_EDIT3, m_miwen);
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDES2Dlg, CDialog)
//{{AFX_MSG_MAP(CDES2Dlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDES2Dlg message handlers

BOOL CDES2Dlg::OnInitDialog()
{
CDialog::OnInitDialog();

// Add "About..." menu item to system menu.

// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);

CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}

// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon

// TODO: Add extra initialization here

return TRUE; // return TRUE unless you set the focus to a control
}

void CDES2Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}

// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.

void CDES2Dlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting

SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

// Center icon in client rectangle
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;

// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CDES2Dlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}

void CDES2Dlg::OnButton1()
{
// TODO: Add your control notification handler code here
char str[10],key[10];
char buf[30];
char cBuffer[30];

m_mingwen.GetWindowText(str,10);//将明文编辑框中的内容加入到程序中
m_miyao.GetWindowText(key,10);//将密钥编辑框中的内容加入到程序中

memset(buf, 0, sizeof(buf));
strcpy(buf, str);
///////////////////////////////////////////////
Des_Go(buf, buf, sizeof(str), key, sizeof(key), ENCRYPT);
//////////////////////
strcpy(cBuffer,buf);
m_miwen=(LPCTSTR)cBuffer;
UpdateData(FALSE);

}

void CDES2Dlg::OnButton2()
{
// TODO: Add your control notification handler code here
char str[10],key[10];
char buf[30];
char cBuffer[30];

this->GetDlgItemText(IDC_EDIT3,str,10);
this->GetDlgItemText(IDC_EDIT2,key,10);

// m_miwen.GetWindowText(str,10);//将密文编辑框中的内容加入到程序中
// m_miyao.GetWindowText(key,10);//将密钥编辑框中的内容加入到程序中

memset(buf, 0, sizeof(buf));
strcpy(buf, str);
///////////////////////////////////////////////
Des_Go(buf, buf, sizeof(str), key, sizeof(key), DECRYPT);
//////////////////////
strcpy(cBuffer,buf);
m_hfmingwen=(LPCTSTR)cBuffer;
UpdateData(FALSE);
}

void CDES2Dlg::OnOK()
{
// TODO: Add extra validation here

OnOK();
}

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