The decentralised, cooperative and self-organising nature of Peer-to-Peer (P2P) systems help to mitigate and even overcome many challenges which overwhelm the traditional client-server approaches. On the other hand, these very characteristics also introduce some novel issues in P2P environments. One of the critical issues is how to build the trust relationship within P2P systems. In this paper,...

Currently, most peer-to-peer (P2P) systems are designed for file sharing by network participants. Simple meta-data search mechanism will be sufficient to support searching and retrieving shared files over P2P networks. However, to share document information such as news articles, scientific publications, company reports, etc., a content-based search mechanism is needed to provide efficient cont...

This research papers examines the state-of-the-art in the area of P2P networks/computation. It attempts to identify the challenges that confront the community of P2P researchers and developers, which need to be addressed before the potential of P2P-based systems, can be effectively realized beyond content distribution and file-sharing applications to build real-world, intelligent and commercial...

abstract— peer-to-peer ( p2p ) systems have been the center of attention in recent years due to their advantage . since each node in such networks can act both as a service provider and as a client , they are subject to different attacks . therefore it is vital to manage confidence for these vulnerable environments in order to eliminate unsafe peers . this paper investigates the use of genetic ...

recently, peer-to-peer (p2p) networks contribute to a large fraction of the internet backbone traffic. consequently, misusing such networks for malicious purposes is a potential side effect. in this review article, we investigate different techniques of misusing p2p overlay networks to launch large-scale next-generation distributed denial of service (ddos) attacks. in particular, we investigate...

ZHANG, QINGHUA Improving performance of peer-to-peer systems by caching. (Under the direction of Dr. Douglas Reeves). Recently, Peer-to-Peer (P2P) has attracted a great deal of interest in industry and research literature. P2P systems are application layer networks, in which logically distinct computing elements peers, bear comparable roles and responsibilities. P2P enables peers to share resou...

Peer-to-Peer (P2P) systems provide a decentralized infrastructure for resource sharing. In particular, file sharing was the initial motivation behind many of the first successful P2P systems. As P2P systems evolve to support sharing of structured and semantically rich data, several data management issues must be addressed. Specifically, P2P systems need to deal with data location, data integrat...

0140-3664/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.comcom.2008.08.008 * Corresponding author. Tel.: +1 214 208 5951. E-mail addresses: [email protected] (W. Yu), ch pan), [email protected] (X. Wang), xuan@cs Active worms continue to pose major threats to the security of today’s Internet. This is due to the ability of active worms to automatically propagate themselves and co...