A Consideration of the Reliability of Registration and Attribute Exchange

Attribute information such as age, gender, and job is used in user registration and questionnaires.A verifier must consider what method to use for confirming attribute information when it is used online.For instance,the reliability of the information varies with the method:the verifier can accept the user´s claim,confirm by certificate,confirm face-to-face or use other methods. Therefore, the reliability of attribute information becomes a problem when strict verification is necessary for a contract.In this paper,we consider the reliability of registration and attribute information that is exchanged and propose a method by which the reliability of attribute information and its grounds can be returned when attributes are exchanged.