Authors
Limei Ma
College of Information Technology Hebei Normal University, Shijiazhuang, In China
Key Laboratory of Network and Information Security in Hebei Province, Shijiazhuang, In China
School of Information Studies, Dominican University, River Forest, In USA
Dongmei Zhao
College of Information Technology Hebei Normal University, Shijiazhuang, In China
Key Laboratory of Network and Information Security in Hebei Province, Shijiazhuang, In China
Chen Zhao
College of Information Technology Hebei Normal University, Shijiazhuang, In China
Key Laboratory of Network and Information Security in Hebei Province, Shijiazhuang, In China