The Research And Designing Of Watermarking Protocol Based On Product's Right Transaction

With the highly developing technology of digital watermarking ,Date rights'protection are limited by how to use watermarking technique to restrain illegal digital products'transmission and how to protect the interest of all the characters who are involved in the whole transactions .so it's important to write a high quality watermarking protocol to solve such problems .At the mean while ,with the developing trade model ,Product providers are not sell the entire digital product ,instead they sell part functions or whole functions or lifespan of the product which are depending on customs'needs .A concept called Product Right is used .Traditional watermarking protocols'trade models are based on dealing with entire product. They weren't refer to product's right .The roles in traditional watermarking protocols(TWP) are Buyer(B),Seller(S), Watermarking Certification Authority(WCA).whose interests are not considered well. By analyzing the trade model ,This article involve product right as a new concept which caused a new role called Rights Certification and Management Center(RC) birth. Then it merges RC into the traditional trade model as a new third party. Based on the four roles, it reconstructs the watermarking protocol with product right trade model. The product right transaction watermarking protocol (PRWP) is divided by seven sub-protocols which are Identity Registered Protocol(IRP), Products'Rights Registered Protocol(PRRP), Products'Rights Generated Protocol(PRGP),Watermarking Generated Protocol(WGP),Watermarking Insert Protocol(WIP),Copyright Tracking Protocol(CTP) and Products'Rights Detected Protocol(PRDP).Using the 7 sub-protocols reconsider the four characters'interests aiming to fulfill two functions that one is copyright tracking and another one is Products'rights detecting. PRWP has solve the problems such as Anonymous attack, Collusion attack , Over trusted third party attack , Transaction unbinding problem, Middle attack ,which are not considered well in TWP. PRWP has also defense the attacks on Products'rights.