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.