Title	Design of Secure Clustering Routing Protocol using SNEP and ?TESLA on Sensor Network Communication
Author	Kun-Won Jang, Woo-sik Jung, Dong-kyu Shin, Moon-Seog Jun
Citation	Vol. 6  No. 1  pp. 171~176
Keywords	Sensor network, Key management, Clustering, Energy savings

Title	Cryptanalysis of Sui et al.'s Second ID-based Key Issuing Protocol without Key Escrow
Author	Hyunjue Kim, Seungjoo Kim, Dongho Won
Citation	Vol. 6  No. 1  pp. 247~250
Keywords	ID-based cryptography, Key escrow problem, Secure key issuing

Title	A Hybrid Approach to Key Predistribution for Ubiquitous Sensor Network
Author	Jong Sou Park, Mohammed Golam Sadi, Dong Seong Kim
Citation	Vol. 6  No. 1  pp. 258~264
Keywords	Key predistribution, Ubiquitous sensor network, Information security, symmetric key

Title	A Study on DRM System for On/Off Line Key Authentication
Author	Kun-Won Jang, Chan-Kil Park, Jung-Jae Kim, Moon-Seog Jun
Citation	Vol. 6  No. 2  pp. 233~238
Keywords	DRM, Symmetric key, Agent, PKI.