1. Embedded Technology Laboratory, School of Computer Science and Engineering, Northeastern University, Shenyang, Liaoning, China
2. Engineering Research Center of Security Technology of Complex Network System, Ministry of Education, China
3. School of Information Science and Engineering, Shenyang University, Shenyang, Liaoning, China
4. Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, China