一种P2P电子商务安全信任模型

由于P2P计算成本低、交流方式更人性化等优势，在多方面取得了迅速的发展，特别是近几年将P2P应用于电子商务，戍了研究热点。但是在完全分布式的P2P网络中进行电子商务存在很多问题，其中安全信任问题尤为突出。为了解决这个问题，本文提出了一种基于投票协议的P2P电子商务安全信任模型。经过仿真，显示本文提出的安全信任模型使交易的一方能通过直接信任和推荐信任的计算，准确有效地评估交易的另一方，从而在以行业为标准划分的社区中建立起电子商务安全信任关系，同时可以防止各种恶意行为造成的信任攻击，解决了无历史纪录节点的信任这一难题，确保了电子商务交易的网络安全和健壮性。

A Security -Trust Model for P2P E-Commerce

With the low cost and humanity communication,P2P(Peer to Peer) applications have seen an enormous suc- cess.Especially,building e-commerce in P2P has become a hotpot recently.But there are some problems lie in doing e- commerce transactions in distributed P2P.The trust problem is the most important.In this paper,we proposed a pol- ling protocol-based trust model for P2P e-commerce After simulating,the result shows that the trust model can effectly evaluate the transaction participators by compute the direct trust and recommend trust.Meanwhile,the trust model can prevent some vicious attack,solve no history peer's trust problem and strengthen network security and robustness.