A Group-Based Trust Model in Peer-to-Peer Environment
نویسندگان
چکیده
The open and anonymous nature of peer-to-peer system makes it easy to be attacked and abused by some malicious nodes, so it is very important to establish a perfect trust mechanism in peer-to-peer environment. In this paper, we propose a novel group-based trust model in which the trust relationships between entities are divided into trust relationship in group and trust relationship between groups. This model deals with these two kinds of trust relationships in the different way and improves trust value calculation method. The model can get more real trust value at the small price, and the advantages of the model are simple structure and high reliability.
منابع مشابه
A Genetic Programming-based trust model for P2P Networks
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 ...
متن کاملDisTriB: Distributed Trust Management Model Based on Gossip Learning and Bayesian Networks in Collaborative Computing Systems
The interactions among peers in Peer-to-Peer systems as a distributed collaborative system are based on asynchronous and unreliable communications. Trust is an essential and facilitating component in these interactions specially in such uncertain environments. Various attacks are possible due to large-scale nature and openness of these systems that affects the trust. Peers has not enough inform...
متن کاملDisTriB: Distributed Trust Management Model Based on Gossip Learning and Bayesian Networks in Collaborative Computing Systems
The interactions among peers in Peer-to-Peer systems as a distributed collaborative system are based on asynchronous and unreliable communications. Trust is an essential and facilitating component in these interactions specially in such uncertain environments. Various attacks are possible due to large-scale nature and openness of these systems that affects the trust. Peers has not enough inform...
متن کاملGGRA: a grouped gossip-based reputation aggregation algorithm
An important issue in P2P networks is the existence of malicious nodes that decreases the performance of such networks. Reputation system in which nodes are ranked based on their behavior, is one of the proposed solutions to detect and isolate malicious (low ranked) nodes. Gossip Trust is an interesting previously proposed algorithm for reputation aggregation in P2P networks based on t...
متن کاملThe Effect of Peer Mentoring Program on Nursing Students’ Stressors in Clinical Environment
Introduction: Without clinical education, efficient nursing education is hardly achievable. Nursing Students recall clinical education as their most stressful course ever. Peer mentoring may be one of the strategies to reduce student stress in the clinical environment. The purpose of this study is to examine the effects that a peer mentoring program has on nursing students’ stress factors in cl...
متن کامل