This paper studies an active underground economy which specializes in the commoditization of activities such as credit card fraud, identity theft, spamming, phishing, online crede...
Jason Franklin, Adrian Perrig, Vern Paxson, Stefan...
Unstructured P2P systems have gained great popularity in recent years and are currently used by millions of users. One fundamental property of these systems is the lack of structu...
Elias Athanasopoulos, Kostas G. Anagnostakis, Evan...
Human interaction proofs (HIPs) have become common place on the internet due to their effectiveness in deterring automated abuse of online services intended for humans. However, th...
Kumar Chellapilla, Kevin Larson, Patrice Y. Simard...
The advantage of ID-based system is the simplification of key distribution and certification management; a user can directly use his identity as his public key instead of an arbi...
Yan Xie, Fangguo Zhang, Xiaofeng Chen, Kwangjo Kim
Abstract. Definitions of the concepts derived from the goal concept (including functional and nonfunctional goal, hardgoal, and softgoal) used in requirements engineering are discu...