A multi-service oriented collusion-resistant public-key traitor tracing scheme
Xuejun Zhang · Journal of Northwest Normal University · 2006
Mu et al.proposed a pay-TV scheme with user revocation,but it is a private-key scheme,also it does not provide multiple-service capability and meantime can not resist collusion attack.An improved scheme is proposed by using LIFP(Large Integer Factoring Problem) and service parameter.On the basis of transforming Mu's scheme into public-key traitor tracing scheme,the advantages such as providing multiple-service,collusion-resistance and black-box tracing are added.Furthermore,the whole capabilities of the improved scheme are better than that of Mu's.