摘要
XrML是一种基于XML的权限描述语言,它描述了数字内容使用时相关的权限、条件等。作为 MPEG-21的权限表达语言,XrML已经成为国际标准化组织的一种标准,得到大力的推广。本文设计并实现了 一个XrML验证器,该验证器的特点是具有良好的扩展性和广泛的适应性,系统精简紧凑,可以用在嵌入式系 统、手持设备等对资源占用有着较高要求的场合。目前该XrML验证器已经被应用到了中科院计算所的知识创 新工程"基于IPv6的内容分发系统"。
XrML is a right expression language which based on XML. It describes the relative right, condition and so on when you are using a digital works. XrML currently has become an international standard and is getting more and more popular. This paper designs and implements an XrML validator, and it can be called directly by those systems which need the functionality of DRM. The advantage of this validator is that it' s developed using C + + , so it' s very compact and can be used in such fields as embedded system.
出处
《现代图书情报技术》
CSSCI
北大核心
2005年第3期7-10,36,共5页
New Technology of Library and Information Service
