public static string Encrypt(string toEncrypt) { byte[] keyArray; byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt); System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader(); string key = "KEY"; MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider(); keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key)); hashmd5.Clear(); 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); } public static string Decrypt(string cipherString) { try { byte[] keyArray; byte[] toEncryptArray = Convert.FromBase64String(cipherString); string key = "KEY"; MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider(); keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key)); hashmd5.Clear(); 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); } catch (Exception) { return "Invalid"; } }
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