krbtestdlg.cpp

基于openssl开发的

// krbtestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "krbtest.h"
#include "krbtestDlg.h"
#include "openssl/evp.h"

#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()

/////////////////////////////////////////////////////////////////////////////
// CKrbtestDlg dialog

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

void CKrbtestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CKrbtestDlg)
	DDX_Control(pDX, IDC_SIGN, m_Sign);
	DDX_Control(pDX, IDC_ENCODE, m_Encode);
	DDX_Control(pDX, IDC_DESIGN, m_Design);
	DDX_Control(pDX, IDC_DECODE, m_Decode);
	DDX_Control(pDX, IDC_ENCRYPT, m_Ecrypt);
	DDX_Control(pDX, IDC_DIGEST, m_Digest);
	DDX_Control(pDX, IDC_DECRYPT, m_Decrypt);
	DDX_Text(pDX, IDC_EDIT1, m_Path);
	DDX_Text(pDX, IDC_EDIT2, m_MsgBox);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CKrbtestDlg, CDialog)
	//{{AFX_MSG_MAP(CKrbtestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ENCRYPT, OnEncrypt)
	ON_BN_CLICKED(IDC_DIGEST, OnDigest)
	ON_BN_CLICKED(IDC_DECRYPT, OnDecrypt)
	ON_BN_CLICKED(IDC_BUTBRO, OnButbro)
	ON_BN_CLICKED(IDC_SIGN, OnSign)
	ON_BN_CLICKED(IDC_ENCODE, OnEncode)
	ON_BN_CLICKED(IDC_DESIGN, OnSignVerify)
	ON_BN_CLICKED(IDC_DECODE, OnDecode)
	ON_BN_CLICKED(IDOK, OnAbout)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CKrbtestDlg message handlers

BOOL CKrbtestDlg::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
	
	((CButton*)GetDlgItem(IDC_RADIO_MD5))->SetCheck(TRUE);
	((CButton*)GetDlgItem(IDC_RADIO2_MD5))->SetCheck(TRUE);

	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CKrbtestDlg::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 CKrbtestDlg::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 CKrbtestDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CKrbtestDlg::OnEncrypt() 
{
	UpdateData(TRUE);              //将要加密的文件路径加载文档中 由view--->doc
	if(m_Path.GetLength() <= 0)
	{
		m_MsgBox = "请选择要进行加密的文件\r\n";
	    UpdateData(FALSE);
		return;
	}
	char SavePath[MAX_PATH];
	memset(SavePath,0,MAX_PATH);
	strcpy(SavePath,(char*)(LPCSTR)m_Path);
	strcat(SavePath,".enc");
	
	FILE *fp = fopen((char*)(LPCSTR)m_Path,"rb");//将CString转换成char类
	FILE *fpout = fopen(SavePath,"wb");          //打开将要写密钥文件的句柄
	if(fp == NULL||fpout == NULL)
	{
		return;
	}
	int len = 0;
	char txt[1024];
	int rel = 0;
	int outlen = 0;
	char outbuf[2048];
	unsigned char key[] = "610039"; //密钥
	unsigned char iv[] = "7855555"; //初始向量
	
	memset(txt,0,1024);
	memset(outbuf,0,2048);
	
	EVP_CIPHER_CTX ctx;
	EVP_CIPHER_CTX_init(&ctx);
	
	
	rel = EVP_EncryptInit_ex(&ctx,EVP_des_ecb(),NULL,key,iv);
	if(!rel)
		goto ERR;
	
	while(!feof(fp))
	{
		len = fread(txt,1,1024,fp);
		rel = EVP_EncryptUpdate(&ctx,(unsigned char*)outbuf,&outlen,(unsigned char*)txt,len);
		if(!rel)
			goto ERR;
		fwrite(outbuf,1,outlen,fpout);
	}
	rel = EVP_EncryptFinal(&ctx,(unsigned char*)outbuf,&outlen);
	if(!rel)
		goto ERR;
	fwrite(outbuf,1,outlen,fpout);
	
	fclose(fp);
	fclose(fpout);
	m_MsgBox = "加密后的文件数据文件为原文件名加上.enc\r\n";
	m_MsgBox += "\n";
	m_MsgBox += "加密完成!";
	UpdateData(FALSE);
	return;

ERR:
	m_MsgBox += "加密错误!";
	UpdateData(FALSE);
	return ;
}

void CKrbtestDlg::OnDigest() 
{
	UpdateData(TRUE);
	if(m_Path.GetLength() <= 0)
	{
		m_MsgBox = "请选择要摘要的文件\r\n";
		UpdateData(FALSE);
		return;
	}
	
	
	char inbuf[1024];
	char outbuf[2048];
	
	int inlen = 0;
	int i = 0;
    
	char SavePath[MAX_PATH];
	memset(SavePath,0,MAX_PATH);
	strcpy(SavePath,(char*)(LPCSTR)m_Path);
	strcat(SavePath,".digest");
	
    int outlen = 0;
    memset(inbuf,0,sizeof(inbuf));
	memset(outbuf,0,sizeof(outbuf));
    FILE *fpin = NULL;
	FILE *fpout = NULL;
	
	EVP_MD_CTX ctx;
	EVP_MD_CTX_init(&ctx);
	int rel = 0;
	if(((CButton*)GetDlgItem(IDC_RADIO_MD5))->GetCheck() == 1)
	{
		rel = EVP_DigestInit_ex(&ctx,EVP_md5(),NULL);
	}
	else
	{
		rel = EVP_DigestInit_ex(&ctx,EVP_sha1(),NULL);
	}
	
    if (!rel) goto ERR;
	
    fpin = fopen((char *)(LPCSTR)m_Path,"rb");
    fpout = fopen(SavePath,"wb");
	if(!fpin||!fpout)
	{
		return;
	}
	
	while(!feof(fpin))
	{
		inlen = fread(inbuf,1,1024,fpin);
		rel = EVP_DigestUpdate(&ctx,inbuf,inlen);
		if(!rel) 
			goto ERR;
	}
    inlen = 0;
	memset(inbuf,0,sizeof(inbuf));
	EVP_DigestFinal_ex(&ctx,(unsigned char *)outbuf,(unsigned int *)&outlen);
	
	EVP_MD_CTX_cleanup(&ctx);
	fwrite(outbuf,1,outlen,fpout);
    fclose(fpin);
    fclose(fpout);
	
	m_MsgBox = "文件摘要成功!\r\n";
	UpdateData(FALSE);
	return;
ERR:
	m_MsgBox = "文件摘要失败!\r\n";
	UpdateData(FALSE);
	return ;
}

void CKrbtestDlg::OnDecrypt() 
{
    UpdateData(TRUE);
	if(m_Path.GetLength() <= 0)
	{
		m_MsgBox = "请选择要进行解密的文件!\r\n";
	    UpdateData(FALSE);
		return;
	}
	char SavePath[MAX_PATH];
	memset(SavePath,0,MAX_PATH);
	strcpy(SavePath,(char*)(LPCSTR)m_Path);
	strcat(SavePath,".dec");
	
	FILE *fp = fopen((char*)(LPCSTR)m_Path,"rb");
	FILE *fpout = fopen(SavePath,"wb");
	if(fp == NULL||fpout == NULL)
	{
		return;
	}
	int len = 0;
	char txt[1024];
	int rel = 0;
	int outlen = 0;
	
	char outbuf[2048];
	unsigned char key[] = "610039";
	unsigned char iv[] = "7855555";
	
	memset(txt,0,1024);
	memset(outbuf,0,2048);
	
	EVP_CIPHER_CTX ctx;