Shulou(Shulou.com)06/03 Report--

This article mainly introduces the example analysis of MD5 algorithm based on string encryption, which has a certain reference value, and interested friends can refer to it. I hope you will gain a lot after reading this article.

MD5 algorithm based on string encryption, VS2008 VC++, multibyte compilation project. The main code is as follows, to achieve the ANSI string encryption and Unicode string encryption.

The running effect is as follows:

Core code:

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) missus text;} 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 ("same ciphertext comparison result!), _ T (" compare the same result "), MB_OK | MB_ICONINFORMATION);} else {MessageBox (_ T (" ciphertext comparison result failed! ") , _ T ("compare different"), 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} Thank you for reading this article carefully. I hope the article "sample Analysis of MD5 algorithm based on string encryption" shared by the editor will be helpful to you. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.