Anonymous Fingerprinting Based on Electronic Cash

摘要

A new anonymous fingerprinting protocol based on the principle of electronic cash is proposed in this paper.Redistributing a data item is equal to doublespending electronic cash.Contrasting with the previous coin-based anonymous fingerprinting protocol,we use the real electronic cash to trace traitors instead of the "coins" which serve only as a cryptographic primitive and have no monetary value,so it is easily understood and the bank does not need key-distribution and registration to prepare the "coina".