基于主从许可证的多级信任版权分布式安全认证协议

为了解决当前软件版权保护措施在安全性有效性方面存在的问题，基于第三方可信中心提出了一种主从动态许可证支持的多级信任版权安全许可协议(M-CPSec)，通过特征关联、原子授权、强制收权和多级分发机制，有效地解决了软件版权的安全保护、软件资源的任意迁移、软件内容的完整保持和版权的多级分发问题．这种层次化多级版权控制结构构成一种信任传递关系，使得协议普遍适用于单用户和带有多用户的客户服务器软件版权保护．协议交互中通过数据加密和数字签名来保证分布式环境下数据的安全性、完整性以及不可否认性．协议分析证明了所提方案的可行性、安全性以及完备性．M-CPSec方案以支持客户服务器版权管理而扩展了最终用户许可协议，为软件版权保护提供了一种普遍适用的方案。

Secure Authentication Protocal for Hierarchical Trusted Copyright Management Based on Master/Slavery License

To solve the problem of the security and efficiency which exists in traditional software protection approaches, a dynamic master/slavery-based 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 single-client 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.