Traitor Tracing Scheme Based on Luc Public-key Cryptosystem

Abstract

An asymmetric traitor tracing scheme based on Luc public key cryptosystem is proposed. The scheme uses Shamir's secret sharing scheme. Comparing with existed schemes, the new scheme has some advantages.Firstly, we use the Luc public key cryptosystem in the scheme to increase the security. Secondly, the length of user key and data header is short. The scheme is asymmetric which means data supplier does not have all user's key. The user's key is made by user and data supplier. The data supplier is unable to fra…