Title	PEPSI (Privacy-Enhanced Permanent Subject Identifier) Embedded in X.509 Certificate
Author	Jaeil Lee, JongWook Park, Seungjoo Kim, JooSeok Song
Citation	Vol. 6  No. 6  pp. 204-208
Keywords	PKI, X.509, Certificate, CA, User authentication, Privacy

Title	A Service Composition-Oriented Workflow Paradigm
Author	Wanchun Dou, Shijie Cai
Citation	Vol. 6  No. 1  pp. 136~146
Keywords	Certificate, Workflow, Service Computing, Web Service, Time Constraint, QoS, Temporal Logic