A Distributed Traceable Anonymous Transaction Scheme

The traditional network transaction needs a trusted center to verify the user’s transaction, and it is easy to fall into a single point of failure, and the existing anonymous transaction schemes only focus on the anonymity of the transaction, there is little research on the tracing of illegal trade, especially the distributed tracing scheme. In order to solve these problems, this paper designs a Consortium blockchain composed of multiple trading centers (TCs) to replace the traditional CA, and verifies the user’s transaction content through PBFT consensus mechanism. In our scheme, Multiple trace authorities (TRAs) are designed to jointly tracking of the real identity of the user, which effectively prevents the abuse of supervision by the only supervisor.