Date on Master's Thesis/Doctoral Dissertation


Document Type

Master's Thesis

Degree Name

M. Eng.


Computer Engineering and Computer Science

Committee Chair

Nasraoui, Olfa

Author's Keywords

Peer to peer; Network; Optimization; Contraband file


Electronic surveillance; Computer networks--Design and construction; Computer crimes


Peer-to-peer networks have been growing in popularity over the past decade. There have been many new innovations that greatly improve access to a wide variety of content. This expanded capability combined with a strong sense of anonymity has given rise to increased proliferation of illicit content. In particular the increase in child pornography has been a growing concern in the United States and other countries. Thus law enforcement is motivated to find improved means for finding those sharing this material online. Due to the dynamic and expansive nature of peer-to-peer networks, there is a need to develop methods that allow law enforcement to monitor with a high degree of confidence that a large percent of perpetrators can be identified. Thus a study of the current state of peer-to-peer networks with an analysis of how best to identify clients sharing contraband files on the network is needed to monitor these criminal elements.