Anonmity-Revocable Electronic Prosecution Report System

Many privacy-protecting electronic payment systems have been proposed to realize the revocable anonymity among users. In this paper, by organizing all users into a group, we present an anonymity revocable electronic prosecution report system. The report system is efficient and the user's privacy will not be compromised in normal cases. However, when defamation was detected, the anonymity can be removed by electronic report center with the help of an off-line trusted third party(TTP). The proposed system is practical and can be applied to military or government as an internal prosecution report system which is also defamation resistant.