Abstract: In smaller granularity content protection research field, there always exist the needs of protecting part content or referred content, which might raise the conflict of multi-security rules. The conflict will make the content unavailable. This paper tries to find the source of the conflict and present algorithms of SRCDA and ICAA to solve it, and gives an example.

Key words: Part protection, Reference protection, Security rules, Conflict

摘要： 在数字信息内容细粒度保护领域，通常存在对信息内容的部分保护和引用保护需求。这类保护可能带来不同安全规则之间的冲突，从而造成信息内容的不可用性，就此问题进行分析，挖掘冲突根源，提出安全规则的冲突检测算法及信息内容可用性检测算法，给出一个实例予以说明。

关键词: 部分保护, 引用保护, 安全规则, 冲突

CLC Number: 

• TP311