C / C++ / MFC

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#include <locale><br />

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c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\xlocmon(249): error C2061: syntax error : identifier '_DebugHeapTag'<br />

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 public static string Decrypt(string cipherString, bool useHashing)
        {
            byte[] keyArray;
            byte[] toEncryptArray = Convert.FromBase64String(cipherString);

            System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader();
            //Get your key from config file to open the lock!
            string key = (string)settingsReader.GetValue("SecurityKey", typeof(String));
            
            if (useHashing)
            {
                MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
                keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
                hashmd5.Clear();
            }
            else
                keyArray = UTF8Encoding.UTF8.GetBytes(key);

            TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
            tdes.Key = keyArray;
            tdes.Mode = CipherMode.ECB;
            tdes.Padding = PaddingMode.PKCS7;

            
            ICryptoTransform cTransform = tdes.CreateDecryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
                        
            tdes.Clear();
            return UTF8Encoding.UTF8.GetString(resultArray);
        }
public static string Encrypt(string toEncrypt, bool useHashing)
        {
            byte[] keyArray;
            byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);

            System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader();
            // Get the key from config file
            string key = (string)settingsReader.GetValue("SecurityKey", typeof(String));
            //System.Windows.Forms.MessageBox.Show(key);
            if (useHashing)
            {
                MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
                keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
                hashmd5.Clear();
            }
            else
                keyArray = UTF8Encoding.UTF8.GetBytes(key);

            TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
            tdes.Key = keyArray;
            tdes.Mode = CipherMode.ECB;
            tdes.Padding = PaddingMode.PKCS7;

            ICryptoTransform cTransform = tdes.CreateEncryptor();
            byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
            tdes.Clear();
            return Convert.ToBase64String(resultArray, 0, resultArray.Length);
        }

void ThreeDESdecrypt(unsigned char *cyphertext,unsigned long ctlen,unsigned char *passwd,unsigned long pwlen,unsigned char *plaintext,unsigned long *ptlen)
{
    HCRYPTPROV hProv = NULL;
    HCRYPTHASH hHash = NULL;
	HCRYPTKEY hKey = NULL;
	DWORD dMode;
	BYTE * value2 = {0};
	DWORD lul_len, lul_buflen, lul_skip, lul_pflags;
	bool lb_rtn;
	BLOB lblob_data;
    TCHAR* convertedStr;
	//convertedStr[0] = ('\0');
	BYTE * key1 = NULL;//[24] = {0};

	
	std::string value = "Zed5OmjUWs8=";
	lul_len = strlen(value.c_str());
	lul_buflen = (lul_len * 2);
	
	
	BOOL result = CryptStringToBinary(value.c_str(), lul_len, CRYPT_STRING_BASE64, NULL, &lul_buflen, &lul_skip, NULL);
	key1 = new BYTE [ lul_buflen ];
	memset ( key1, 0 , lul_buflen );
	result = CryptStringToBinary(value.c_str(), lul_len, CRYPT_STRING_BASE64, key1, &lul_buflen, &lul_skip, NULL);
	/*TCHAR* convertedStr = new TCHAR [lul_buflen];
	memset( convertedStr, 0 , lul_buflen );*/
	hProv = InitializeCrypt();  
	result = CryptCreateHash(hProv,CALG_MD5,0,0,&hHash);
	result = CryptHashData(hHash, passwd, pwlen, 0);
	result = CryptDeriveKey(hProv,CALG_3DES,hHash,0,&hKey);
	dMode = CRYPT_MODE_ECB;
	DWORD dwLastError = GetLastError();
	result = CryptSetKeyParam(hKey, PKCS5_PADDING, reinterpret_cast<const BYTE *>(&dMode), 0);
	memcpy(plaintext,key1,*ptlen);
	result = CryptDecrypt(hKey,hHash,1,0,plaintext,&lul_buflen);
	*ptlen=ctlen;
	CryptBinaryToString(plaintext, lul_len, CRYPT_STRING_BASE64, NULL, &lul_buflen);
	convertedStr = new TCHAR [lul_buflen];
	memset( convertedStr, 0 , lul_buflen );
	CryptBinaryToString(plaintext, lul_len, CRYPT_STRING_BASE64, convertedStr, &lul_buflen);
	result = CryptDestroyKey(hKey);
	result = CryptDestroyHash(hHash);
	result = CryptReleaseContext(hProv,0);
}

RECT rect = {25,29,190,250};
	m_treeCtrl1.Create(WS_CHILD|WS_VISIBLE|WS_BORDER|TVS_TRACKSELECT|TVS_SHOWSELALWAYS , 
								rect,this, 1001);