Attribute Certification Based Online Reputation System

The idea of combining the identity certification (IC) with reputation system to reduce the risk of e-commerce was presented. The reputation attribute certification (RAC) was proposed in a tightly coupled pattern. It means that the content of reputation is written into the attribute-item of attribute certification. RAC is correlated with IC by binding information as the general attribute certification does. So, certification authority(CA) not only is the administrator of ICs, but also can be used to review the reputation. The protocol of the coupled pattern were described in the model of reputation-cost.