IJCTT-International Journal of Computer Trends and Technology
Open nature of peer-to-peer systems exposes them to vindictive activity. Building trust relationships among peers can diminish attacks of vindictive peers. This paper presents distributed algorithms that entitle a peer to reason about trustworthiness of the other peers based on previous recommendations and interactions. Peers create their own trust network in their propinquity by using local information available and they do not try to learn global trust information. Two contexts of service, trust, and recommendation contexts, are defined to measure trustworthiness in providing the services and giving recommendations.