针对现有商务交易协议的缺陷,提出了将信誉机制引入到电子商务支付活动中的改进方案。通过对改进支付协议的形式化模型进行分析,表明改进支付协议不仅具有原有协议的安全性,而且能有效地刺激商家提高服务质量,防御商家的聘用托的合谋攻击,防范电子商务活动中的欺诈行为,对进一步完善支付环节的安全性,推动网络环境下信任管理的发展有一定价值。
In order to resolve the defects of popular payment protocols, a paypment model about payment based on secure reputation system is proposed. By analyzing the formal model of the improved sheme, a conclusion is attained. It is that the improved payment protocol can not only satisfy with security of the primitive protocol, but also resist the collusion attack and stimulate the quality of after service and keep cheat behavior in the E-commerce away. The payment protocol based on reputaton system contribute to more security of payment movement and development of credit management in network.