Ma Zhaofeng,Feng Boqing
(School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an ¡¡710049,China)
Abstract:To solve the problem of the security and efficiency which exists in traditional software protection approaches, a dynamic master/slaveryª²based secure authentication protocol supporting multilevel trusted copyright is proposed. A third part certificate authority£¨CA£©is adopted for atomic authorization and forced revocation of a software license dynamically according to the software and hardware identity and their usage status, through which the security, consistency and re-distribution of the copyright can be enhanced. Thus the hierarchical trusted structure is suitable not only for singleª²client but for multi-client copyright management. During the interaction of the protocol,symmetric and public key cryptography algorithm are used for data encryption and digital signature. The result of the analysis has proved the feasibility, security and integrity of the proposed protocol, and as an extension of EULA, it provides a general scheme for software copyright protection.
Keywords:software copyright protection£»master/slavery license£»data encryption£»digital signature