ISO/IEC 21000-5:2004 信息技术 多媒体框架（MPEG-21） 第5部分：权限表达语言

标准编号：ISO/IEC 21000-5:2004

中文名称：信息技术 多媒体框架（MPEG-21） 第5部分：权限表达语言

英文名称：Information technology — Multimedia framework (MPEG-21) — Part 5: Rights Expression Language

发布日期：2004-04

标准范围

ISO/IEC 21000-5:20 04规定了权限表达语言的语法和语义。ISO/IEC 21000-5:20 04不授予任何权限，包括关于谁在法律上或技术上被允许创建权限表达的权限。它没有指定可信系统的安全措施，没有提出具体的应用，也没有描述会计所需系统的细节（货币交易、状态交易等）。它也没有具体说明是否或何时应咨询权利表达。然而，ISO/IEC 21000-5:20 04确实定义了授权模型以指定一组权限表达式的语义是否允许给定主体基于给定授权上下文和给定信任根在给定时间间隔期间对给定可选资源执行给定权限。

ISO/IEC 21000-5:2004 specifies the syntax and semantics of a Rights Expression Language.

ISO/IEC 21000-5:2004 does not give any permission, including permissions about who is legally or technically allowed to create Rights Expressions. It does not specify the security measures of trusted systems, propose specific applications, or describe the details of the systems required for accounting (monetary transactions, state transactions, and so on). It also does not specify if or when Rights Expressions shall be consulted.

However, ISO/IEC 21000-5:2004 does define an authorization model to specify whether the semantics of a set of Rights Expressions permit a given Principal to perform a given Right upon a given optional Resource during a given time interval based on a given authorization context and a given trust root.

标准预览图