A New Trust Model in P2P Network

The existing trust model in P2P network is limited in inhibiting feedback-cheating peers’ behaviors and can not fully resist the collectives’ attack. To solve this problem, we present a new trust model. It take Malicious Percentage (MP) and Feedback Consistency Percentage (FCP) as the new trust evaluation criterion to help filter malicious peers in selection strategy of peers. For feedback-cheating peers, we use global trust value to distinguish between true and false feedback information. Experiments demonstrate that our model is effective in resisting feedback-cheating peers’ behaviors and collectives’ attack.