分享基于字符串加密的MD5算法实例代码

概述分享基于字符串加密的MD5算法实例代码 基于字符串加密的MD5算法，VS2008 VC++，多字节编译工程。主要代码如下，实现了ANSI字符串加密与Unicode字符串加密。

运行效果如下：

核心代码：

voID CEncryptByMd5Dlg::OnbuttonOk()  {   // Todo: Add your control notification handler code here   UpdateData(true);   unsigned int len=0;   char *cTemp =NulL;   if(m_bType==0)   {     len=m_sText.GetLength();     cTemp=(char*)(LPCTSTR)m_sText;   }   else   {     len=CStringW(m_sText).GetLength()*2;     cTemp=(char*)ANSI2UNICODE(m_sText);   }   char *cIDentity;   CMd5A md5;   cIDentity = md5.mdstring(cTemp,len);   m_sEncrypt = CString(cIDentity);   if(m_bUpper==TRUE)   {     m_sEncrypt.MakeUpper();   }   else   {     m_sEncrypt.MakeLower();   }   UpdateData(false); }  voID CEncryptByMd5Dlg::OnBnClickedBtnCompare() {   // Todo: Add your control notification handler code here   UpdateData(true);   if(m_sEncrypt==m_szMD5_2)   {     MessageBox(_T("密文比较结果相同!"),_T("比较相同"),MB_OK|MB_ICONinformatION);   }   else   {     MessageBox(_T("密文比较结果失败！"),_T("比较不同"),MB_OK|MB_ICONERROR);   }   UpdateData(FALSE); }  voID CEncryptByMd5Dlg::OnEnChangeEdit1() {   // Todo: If this is a RICHEDIT control, the control will not   // send this notification unless you overrIDe the CDialog::OnInitDialog()   // function and call CRichEditCtrl().SetEventMask()   // with the ENM_CHANGE flag ORed into the mask.   OnbuttonOk();   // Todo: Add your control notification handler code here }  char * CEncryptByMd5Dlg::Unicode2ANSI(CString strSource) {   if (strSource.IsEmpty()) return NulL;   char *pBuffer = NulL;   int nBufferSize = 0; #ifdef _UNICODE    nBufferSize = WIDeCharToMultiByte(CP_ACP, 0, (LPCTSTR)strSource, -1, NulL, 0, NulL, NulL) + 1;   pBuffer = new char[nBufferSize];   memset(pBuffer, 0, sizeof(char)*nBufferSize);    WIDeCharToMultiByte(CP_ACP, 0, (LPCTSTR)strSource, -1, pBuffer, nBufferSize, NulL, NulL); #else    nBufferSize = strSource.GetLength() + 1;   pBuffer = new char[nBufferSize];   memset(pBuffer, 0, sizeof(char)*nBufferSize);    strcpy_s(pBuffer, nBufferSize, (LPCTSTR)strSource); #endif    return pBuffer; } wchar_t * CEncryptByMd5Dlg::ANSI2UNICODE(CString pData) {   int nLength = MultiBytetoWIDeChar(CP_ACP, 0, pData, -1, NulL, 0);   wchar_t *pwBuffer = new wchar_t[nLength + 1];   memset(pwBuffer, 0, sizeof(wchar_t)*(nLength + 1));   MultiBytetoWIDeChar(CP_ACP, 0, pData, -1, pwBuffer, nLength);   return pwBuffer; }  voID CEncryptByMd5Dlg::OnBnClickedCheckUpper() {   OnbuttonOk();   // Todo: Add your control notification handler code here }  voID CEncryptByMd5Dlg::OnBnClickedRadio1() {   OnbuttonOk();   // Todo: Add your control notification handler code here }  voID CEncryptByMd5Dlg::OnBnClickedRadio2() {   OnbuttonOk();   // Todo: Add your control notification handler code here }

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