基于P2P网络中信誉机制的安全电子交易协议

Secure electronic transaction protocol based on the reputation system in P2P networks

文章对安全电子交易协议(SET)进行分析,提出带信任度的SET改进方案,通过对原有的交易流程进行改进,使改进后的SET不仅继承了原有的机密性、完整性,而且也可以进一步保障交易的原子性和不可否认性,提高商家对客户售后投诉的响应速度,避免了商家的通过聘用托的合谋攻击问题,有效保证交易双方的公平性.

After analyzing the SET protocol,an improved SET schemen with credit were given in the paper. The improved sheme not only inherits the confidentiality,integrality of SET,but also guarantees the atomicity and and non-repudiation of transcation, and enhances the traders＇ response to buyers＇ complain and escape from the collusion attack by rectifying the transcaction flow of original SET. As a result,it guarantees the impartiality of both sides.