基于DRM证书机制的数字作品分发方案

Digital Works Distribution Scheme Based on DRM License Mechanism

针对消费者分发需求多样化与数字版权管理系统中严格限定传播范围之间的矛盾,建立分发模型描述各种分发问题,其中,用户之间的分发和设备之间的分发得以区别描述。在该模型的基础上提出一种采用双证书机制的分发方案。将数字作品分割后,通过使用独立密钥并配合相关的链型证书机制和分发权限管理,使消费者成为分发过程的参与人。分发权限的继承性赋予了消费者在分发过程中的控制权利。

This paper builds a distribution model for describing distribution problems between consumers＇ diversified distribution demands and strictly restricted scope of the spread in Digital Rights Management（DRM）. A related distribution mechanism based on the model, which takes different licenses for different distribution, is substituted. And consumers can configure distribution rights inherited with distribution processing with the help of separate keys chain, license chain mechanism and distribution rights management.