public string Encrypt(string plainText)
 {
     return(string.IsNullOrEmpty(plainText)
         ? string.Empty
         : SymmetricAlgorithmCryptography.Encrypt <RijndaelManaged>(plainText, Password));
 }
 public string Decrypt(string cipherText)
 {
     return(string.IsNullOrEmpty(cipherText)
         ? string.Empty
         : SymmetricAlgorithmCryptography.Decrypt <RijndaelManaged>(cipherText, Password));
 }