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本文基于对数字版权保护研究现状的分析,界定了数字版权保护的内涵。在研究通用型DRM的主要功能、使用场景以及交互模型的基础上,论述了通用型DRM实际上是通过密钥对数字内容进行技术加密,从而大大地抑制了电子书从终端盗版的难度。利用通用型DRM构建起来的三新DRM技术模型,不仅最大程度地借鉴前者的优点,使内容出版商可直接掌控密钥,制作可跟踪授权码,而且同时具备通用性好、安全性高以及适用范围广等特点。
Based on the analysis of the research status of digital copyright protection, this paper defines the connotation of digital copyright protection. Based on the study of the main functions, usage scenarios and interaction models of universal DRM, it is discussed that universal DRM is actually the technology of encrypting digital content through the key, which greatly inhibits the difficulty of e-book piracy from the terminal. The three new DRM technology models that are built using general-purpose DRM not only draw on the advantages of the former, but also enable content publishers to directly control the keys and make traceable authorization codes, which are of good generality, high security and applicable A wide range of features.