Abstract:

Based on the analysis of current research on digital copyright protection, the paper defines the connotation of digital copyright protection. Through studying the main functions of universal DRM, basic usage scenarios and interaction model, it advocates the fact that universal DRM is actually the protection technology for digital content by encrypting, which greatly inhibited eBook piracy from terminal. Sanxin DRM models, built on universal DRM, not only maximize the advantages of the universal DRM, which makes content publishers directly control the keys and trace authorization codes, but also possess a wide range of features, such as great commonality, high safety, and wide application.

Key words: Digital copyright protection, Keys, License, Domain management