摘要： 提出一种新的支持权利二次交易的数字版权模型。该模型第一次将用户经济利益纳入数字内容产业链中，平衡了数字内容发行商和用户两者的经济利益，激励用户使用正版数字内容。利用基于身份的公钥系统和重加密方案设计新协议，给出该模型的一种实现，并分析了该模型的安全性和经济利益。

关键词: 数字版权保护, 权利二次交易, 信息安全

Abstract: This paper gives a new Digital Rights Management(DRM) model to resell right. The model brings the consumer’s economic interests into the industrial chain, balances the interests between content provider and user, and incites the consumer to play legal content. A new protocol using Identity Based Encryption(IBE) and re-encryption scheme to implement this model is designed. Security and economic interests of this model are analyzed.

Key words: Digital Rights Management(DRM), right resell, information security

中图分类号: 

• TP311