?? desv3dlg.cpp
字號:
// DESV3Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "DESV3.h"
#include "DESV3Dlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
int IP[65]={0,58,50,42,34,26,18,10,2,60,52,44,36,28,20,12,4,62,54,46,38,30,22,14,6,64,56,48,40,32,24,16,8,57,49,41,33,25,17,9,1,59,51,43,35,27,19,11,3,61,53,45,37,29,21,13,5,63,55,47,39,31,23,15,7};
int IPP[65]={0,40,8,48,16,56,24,64,32,39,7,47,15,55,23,63,31,38,6,46,14,54,22,62,30,37,5,45,13,53,21,61,29,36,4,44,12,52,20,60,28,35,3,43,11,51,19,59,27,34,2,42,10,50,18,58,26,33,1,41,9,49,17,57,25};
int PC1[57]={0,57,49,41,33,25,17,9,1,58,50,42,34,26,18,10,2,59,51,43,35,27,19,11,3,60,52,44,36,63,55,47,39,31,23,15,7,62,54,46,38,30,22,14,6,61,53,45,37,29,21,13,5,28,20,12,4};
int PC2[49]={0,14,17,11,24,1,5,3,28,15,6,21,10,23,19,12,4,26,8,16,7,27,20,13,2,41,52,31,37,47,55,30,40,51,45,33,48,44,49,39,56,34,53,46,42,50,36,29,32};
int E[49]={0,32,1,2,3,4,5,4,5,6,7,8,9,8,9,10,11,12,13,12,13,14,15,16,17,16,17,18,19,20,21,20,21,22,23,24,25,24,25,26,27,28,29,28,29,30,31,32,1};
int Times[17]={0,1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1};
int S[8][4][16]={{{14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7},{0,15,7,4,14,2,13,1,10,6,12,11,9,5,3,8},{4,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0},{15,12,8,2,4,9,1,7,5,11,3,14,10,0,6,13}},{{15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10},{3,13,4,7,15,2,8,14,12,0,1,10,6,9,11,5},{0,14,7,11,10,4,13,1,5,8,12,6,9,3,2,15},{13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9}},{{10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8},{13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1},{13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7},{1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12}},{{7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15},{13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9},{10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4},{3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14}},{{2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9},{14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6},{4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14},{11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3}},{{12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11},{10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8},{9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6},{4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13}},{{4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1},{13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6},{1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2},{6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12}},{{13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7},{1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2},{7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8},{2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11}}};
int PP[33]={0,16,7,20,21,29,12,28,17,1,15,23,26,5,18,31,10,2,8,24,14,32,27,3,9,19,13,30,6,22,11,4,25};
int KK[17][49];
int Out[65];
/////////////////////
/////////////////////////////////////////////////////////////////////////////
// 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()
/////////////////////////////////////////////////////////////////////////////
// CDESV3Dlg dialog
CDESV3Dlg::CDESV3Dlg(CWnd* pParent /*=NULL*/)
: CDialog(CDESV3Dlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDESV3Dlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CDESV3Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDESV3Dlg)
DDX_Control(pDX, IDC_EDIT_Key, m_Key);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CDESV3Dlg, CDialog)
//{{AFX_MSG_MAP(CDESV3Dlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_READBTN, OnReadbtn)
ON_BN_CLICKED(IDC_WRITEBTN, OnWritebtn)
ON_BN_CLICKED(IDC_BUTTON_Go, OnBUTTONGo)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDESV3Dlg message handlers
BOOL CDESV3Dlg::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 CDESV3Dlg::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 CDESV3Dlg::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 CDESV3Dlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CDESV3Dlg::OnReadbtn()
{
// TODO: Add your control notification handler code here
CFileDialog fileDlg( true ) ;
fileDlg.m_ofn.lpstrTitle = "文件打開對話框" ;
fileDlg.m_ofn.lpstrFilter = "C/C++ Files(*.cpp)\0*.cpp\0All Files(*.*)\0*.*\0\0" ;
if(fileDlg.DoModal() == IDOK)
{
char temp;
CFile file(fileDlg.GetFileName(), CFile::modeRead) ;
fname = fileDlg.GetFileName();
dwFileLen = file.GetLength() ;
pBuf = new char[dwFileLen+1] ;
pBuf[dwFileLen] = 0 ;
file.ReadHuge(pBuf, dwFileLen) ;
/*if(dwFileLen > 510)
{
temp = pBuf[500];
pBuf[500] = 0;
m_rtext.SetWindowText(pBuf); //顯示預覽（有字符限制）
pBuf[500] = temp;
}
else m_rtext.SetWindowText(pBuf);*/
file.Close();
}
}
void CDESV3Dlg::OnWritebtn()
{
// TODO: Add your control notification handler code here
//聲明一個文件夾瀏覽結構
LPBROWSEINFO lpbi = new BROWSEINFO;
lpbi->hwndOwner = GetSafeHwnd();
lpbi->pidlRoot = NULL;
lpbi->pszDisplayName = NULL;
lpbi->lpszTitle = "請選擇要寫文件的位置：";
lpbi->ulFlags = BIF_RETURNONLYFSDIRS|BIF_STATUSTEXT;
lpbi->lpfn = NULL;
//顯示外殼文件夾以便用戶選擇
LPITEMIDLIST lpitemidlist = SHBrowseForFolder(lpbi);
if(lpitemidlist == NULL)
{
delete lpbi;
lpbi = NULL;
return;
}
char path[MAX_PATH];
//轉換對象標志符列表為一個文件系統路徑
SHGetPathFromIDList(lpitemidlist, path);
delete lpbi;
CString fpath;
fpath.Format("%s\\", path);
fpath += "crypt_" + fname;
//打開寫文件
CFile file;
file.Open(fpath, CFile::modeCreate|\
CFile::modeWrite|CFile::shareDenyRead);
//寫文件
file.WriteHuge(pBuf, dwFileLen);
//提示信息
CString strHint;
strHint.Format("文件寫到%s完畢", fpath);
AfxMessageBox(strHint);
file.Close();
}
int CDESV3Dlg::KeyProduce(char *cKey)
{
int i,j,k;
int SKCode[65],KCode[57],LKCode[20][57],RKCode[20][29];
int Key[9],midnum;
int midLK[57];
/*midnum=strlen(cKey);//密鑰填充
if(midnum<8)
{
for(i=midnum;i<=7;i++)
{
cKey[i]='0';
}
}
cKey[8]='\0';*/
for(i=1,k=1;i<=8;i++)
{
Key[i]=(int)(cKey[i-1]);
for(j=1;j<=8;j++)
{
midnum=Key[i]/2;
SKCode[8*i-j+1]=Key[i]%2;
Key[i]=midnum;
}
}
for(i=1;i<=56;i++)
{
KCode[i]=SKCode[PC1[i]];
}
for(i=1;i<=28;i++)
{
LKCode[0][i]=KCode[i];
RKCode[0][i]=KCode[i+28];
}
for(k=1;k<=16;k++)//產生16輪子密鑰
{
for(i=1,j=0;i<=28;i++)//循環左移
{
j=i+Times[k];
if(j>28)
{
j=j-28;
}
LKCode[k][i]=LKCode[k-1][j];
RKCode[k][i]=RKCode[k-1][j];
}
for(i=1;i<=28;i++)//置換選擇密鑰準備
{
midLK[i]=LKCode[k][i];
midLK[i+28]=RKCode[k][i];
}
for(i=1;i<=48;i++)//置換選擇2&擴充置換
{
KK[k][i]=midLK[PC2[i]];
}
}
return 0;
}
int CDESV3Dlg::DES(char *In)
{
int i,j,k;
int SCode[65],Code[65];
int LCode[20][33],RCode[20][33];
int midR[49],midRR[33],midnum[9];
int Key[9],mid;
int p,q;//S盒坐標
for(i=1,k=1;i<=8;i++)
{
Key[i]=(int)(In[i-1]);
if(Key[i]<0)
{
Key[i]=Key[i]+256;
}
for(j=1;j<=8;j++)
{
mid=Key[i]/2;
SCode[8*i-j+1]=Key[i]%2;
Key[i]=mid;
}
}
for(i=1;i<=64;i++)//初始置換
{
Code[i]=SCode[IP[i]];
}
for(i=1;i<=32;i++)//初始化LCode,RCode
{
LCode[0][i]=Code[i];
RCode[0][i]=Code[i+32];
}
for(k=1;k<=16;k++)
{
for(i=1;i<=32;i++)
{
LCode[k][i]=RCode[k-1][i];
}
for(i=1;i<=48;i++)//擴充置換
{
midR[i]=RCode[k-1][E[i]];
}
for(i=1;i<=48;i++)
{
if(KK[k][i]!=midR[i])
{
midR[i]=1;
}
else
{
midR[i]=0;
}
}
for(i=1,j=1;i<=43;i=i+6,j++)//S盒代換
{
p=midR[i]*2+midR[i+5];
q=midR[i+1]*8+midR[i+2]*4+midR[i+3]*2+midR[i+4];
midnum[j]=S[j-1][p][q];
}
for(i=1;i<=8;i++)
{
midRR[4*i-3]=midnum[i]/8;
midRR[4*i-2]=(midnum[i]%8)/4;
midRR[4*i-1]=(midnum[i]%8)%4/2;
midRR[4*i]=((midnum[i]%8)%4)%2;
}
for(i=1;i<=32;i++)//置換P
{
midR[i]=midRR[PP[i]];
}
for(i=1;i<=32;i++)//異或
{
if(LCode[k-1][i]!=midR[i])
{
RCode[k][i]=1;
}
else
{
RCode[k][i]=0;
}
}
}
for(i=1;i<=32;i++)//32位互換
{
Code[i]=RCode[16][i];
Code[i+32]=LCode[16][i];
}
for(i=1;i<=64;i++)//逆初始置換
{
Out[i]=Code[IPP[i]];
}
return 0;
}
void CDESV3Dlg::OnBUTTONGo()
{
// TODO: Add your control notification handler code here
int i,j;
CString Key;//密鑰處理
char *cKey;
m_Key.GetWindowText(Key);
cKey=(LPTSTR)(LPCTSTR)Key;
KeyProduce(cKey);
int len = dwFileLen; //獲取文本長度
char* buf = pBuf; //獲取文本指針
DWORD k1 = ::GetTickCount(); //開始計時
for(;len;len=len-8,buf=buf+8)
{
DES(buf);
}
DWORD k2 = ::GetTickCount(); //計時結束
CString result = ""; //輸出測試結果
CString mid;
mid.Format(_T("%d"), k2 - k1);
result += mid + " ";
mid.Format(_T("%d"), dwFileLen * 8);
result += mid;
AfxMessageBox(result);
}
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