Improved digital copyright protection model
Qiaoliang Li · Jisuanji gongcheng yu sheji · 2011
To solve the symmetry and the non-revocation of current digital copyright protection model,an improved model based on traitor tracing scheme is proposed.This improved model applied oblivious polynomial evaluation(OPE) protocol features.In the user registration phase.Merchants and users simultaneously execute OPE,non-symmetry truly is carried out between both.Aiming at the problems of failing to receive the service after paying for the product,a trusted center(TC) which protects the merchant's and the buyers' interest is introduced to the model and makes the latest more practical.Furthermore,a software revocation procedure is also proposed in the improved model which enhanced copyright protection.Finally,a concrete example is presented to verify the feasibility and efficiency of the method.