数字版权管理中的密码技术  

A Survey on Cryptography Technique in DRM

作　　者：陈敬远[1] 

机构地区：[1]浙江传媒学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2013年第3期29-32,共4页Journal of Hangzhou Dianzi University：Natural Sciences

摘　　要：数字版权管理在数字内容的保护方面起着重要作用,它可以实现包括用户认证、许可证生成和控制、内容加解密和用户注册及销户等许多功能。在数字版权管理所采用的所有技术当中,密码技术起着最重要的作用。该文分析总结了密码技术在数字版权管理系统中所起到的基本作用,介绍了涉及的公钥密码、对称密码和哈稀函数等密码算法,并阐明了密码算法领域的最新进展,最后指出了数字版权管理中的密码技术所存在的一些挑战和该领域的当前研究热点。Digital right management（DRM） played an important role in protecting intellectual property of digital contents. It completed many functions including user authentication, license generation and control, content encryption and decryption, key management, user roll and revocation, and etc. Among all techniques DRM applied with, cryptography technique was the most important one. This paper first/y summarized the basic roles cryptography technique owned in DRM system. Then the involved cryptographies were introduced, including public key cryptography, symmetric cipher and hash function, and the recent development on them. At last, some challenges were also pointed out, which leaded the current research interest in the referred domain.

关 键 词：数字版权管理 公钥密码 对称密码 哈稀函数 

分 类 号：TN918.4[电子电信—通信与信息系统]