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Security Aspects of Peer-to-Peer Computing

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Security Aspects of Peer-to-Peer Computing

Shayla J. Brock INSY 4900.51 May 9, 2014

It is important to enable peers to represent and update their trust in other peers in open networks for sharing files, and especially services. A trust model and a method for building reputation based on recommendations in peer-to-peer networks. Since trust is multifaceted, peers need to develop differentiated trust in aspects of other peers’ capability. The peer’s needs are different in different situations. Depending on the situation, a peer may need to consider it’s trust in a specific aspect of another peer’s capability or in multiple aspects. There are networks that provide a flexible method to present differentiated trust and combine different aspects of trust. The evaluation of the model using a simulation shows that the system where peers communicate their experiences outperforms the system where peers do not share recommendations with each other and that a differentiated trust adds to the performance in terms of percentage of successful interactions. Currently, a new and highly interesting paradigm for communication on the Internet, known as Peer-to-Peer (P2P), is emerging. Although originally designed exclusively for pragmatic file swapping applications, Peer-to-Peer mechanisms can be used to access any kind of distributed resources and may offer new possibilities for Internet based applications. Computer and network security, or cybersecurity, are critical issues. But merely protecting the systems that hold data about citizens, corporations, and...

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