A scheme on anti-collusion digital fingerprintings for piracy tracing
Cao Jun-mei · Information technology newsletter · 2012
At present,the fingerprinting scheme generally has many difficulties and disadvantages for large-size users,involved in code construction with shorter length and effective traitor-tracing.To resolve these problems,a construction method of secure fingerprinting by composing of the convolution coding and the spread-spectrum code based on Boneh-Shaw model is introduced.Its decoding algorithm is presented by improving Viterbi algorithm through optional sub-code set.Finally,the security and performance are analyzed.The results show that this fingerprinting has both shorter code-length and faster traitor searching.The examples prove that the fingerprint program can effectively track the pirates and conspirator.