EncryptionWithKey throwing Error

hi,

  i am facing the Invalid Hex String length while executing  EncryptWithKey service.

var key = "327235753778214125442A472D4B6150645367566B59703373367639792F423F4528482B4D6251655468576D5A7134743777217A25432646294A404E63526655";

var params = {

  data: password /* STRING */,

  key: key /* STRING */

};

// result: STRING

var result = Resources["EncryptionServices"].EncryptWithKey(params);

output