Peer-to-peer (P2P) computing is currently attracting enormous attention. In P2P systems a very large number of autonomous computing nodes (the peers) pool together their resources and rely on each other for data and services. Peer-to-peer (P2P) Data-sharing systems now generate a significant portion of Internet traffic. Examples include P2P systems for network storage, web caching, searching an...

on system evaluation and simulation. I would also like to thank all graduate students of MADMUC labs for their helps. I dedicate this thesis to my parents. ii ABSTRACT Peer-to-Peer (P2P) refers to a class of systems and/or applications that use distributed resources in a decentralized and autonomous manner to achieve a goal. A number of successful applications, like BitTorrent (for file and con...

Recently P2P computing has attracted lots of attention from both the distributed computing community and millions and millions of Internet users. This paper describes a pure P2P file sharing system, QuickPeer, which is originally designed to satisfy the requirement for a graduate computer science course. Our QuickPeer system is not only a P2P application, but also a software framework for distr...

Peer-to-peer (P2P) networks have become popular as a new paradigm for information exchange and are being used in many applications such as file sharing, distributed computing, video conference, VoIP, radio and TV broadcasting. This popularity comes with security implications and vulnerabilities that need to be addressed. Especially, due to direct communication between two end nodes in P2P netwo...

Peer-to-peer (P2P) applications have known great developments these years. These applications were originally designed for file sharing and are now considered to a larger scope from video streaming to system update and distributed data base. Recent advances in microprocessors architecture and networks permit one to consider new applications like High Performance Computing (HPC). In this paper, ...

Distributed security models based on a ‘web of trust’ eliminate single points of failure and alleviate performance bottlenecks. However, such distributed approaches rely on the ability to find trust paths between participants, which introduces performance overhead. It is therefore of importance to develop trust path discovery algorithms that minimize such overhead. Since peer-to-peer (P2P) netw...

Many applications are transferred from C/S (Client/Server) mode to P2P (Peer-to-Peer) mode such as VoIP (Voice over IP). This paper presents a new security architecture, i.e. a trustworthy authentication algorithm of peers, for Session Initialize Protocol (SIP) based P2P computer networks. A mechanism for node authentication using a cryptographic primitive called one-way accumulator is proposed...

The huge amount of recent activities in peer-to-peer (P2P) computing led to the development of a number of applications and protocols all dealing with similar problems and providing different noninteroperable implementations. In this paper, we present a framework for resource management and information storage in P2P networks. Our framework aims at providing an easy to use and flexible model fo...

Peer-to-Peer (P2P) networking uses a proliferate and powerful paradigm that replaces the traditional client/server communication model with an arbitrary communication model where all hosts or peers are both clients and servers. While P2P is well known for file sharing we developed a P2P system that provides distributed computing. We have developed and currently use a distributed shell over P2P ...

Peer-to-Peer (P2P) networks are distributed systems in which nodes of equal roles and capabilities exchange information and services directly with one another. In recent years, they have become a popular way to share large amounts of data. Such architectures, however, complicate the process of knowledge discovery and data mining since algorithms must deal with distributed (and often) dynamic so...