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现在,网上电子书、音乐、电影、图片等内容的传播越来越多,由于数字化的内容很容易复制、修改,网上传播存在大量的盗版和侵权问题。因此,针对数字内容的版权保护越来越重要。 数字版权管理技术(Digital Rights Management,即DRM)就是以一定的计算方法,实现对数字内容的保护。 DRM技术的目的是从技术上防止数字内容的非法复制,或者在一定程度上使复制很困难,最终用户必须得到授权后才能使用。
Nowadays, more and more contents such as online e-books, music, movies and pictures are spread, and there are a lot of problems of piracy and infringement due to the fact that digital contents can be easily copied, modified and transmitted online. Therefore, the copyright protection of digital content is more and more important. Digital Rights Management (DRM) is a method of computing that protects digital content. The purpose of DRM technology is to technically prevent the illegal copying of digital content, or to some extent make it difficult to copy, end users must be authorized to use.