Affiliation: | 1. Department of e-Commerce, Semyung University, 579 Shinwol-dong, Jaechon, 390-711, Korea 2. Department of Electrical and Electronic Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China 3. Institute for Information and Electronics Research, Inha University, 253 Yonghyun-Dong, Nam-Gu,Incheon, 402-751, Korea 4. Department of Information Security, Tongmyung University, Daeyeon 3-dong, Nam-gu, Busan, 608-737, Korea |