public static string Decrypt(string decryptKey)
 {
     var rjDecrypt = new RijndaelEnhanced(RijndaelEnhanced.passPhrase, RijndaelEnhanced.initVector);
     return rjDecrypt.Decrypt(decryptKey);
 }
 public static string Encrypt(string encryptKey)
 {
     var rjEncrypt = new RijndaelEnhanced(RijndaelEnhanced.passPhrase, RijndaelEnhanced.initVector);
     return rjEncrypt.Encrypt(encryptKey);
 }