摘要： 把信任机制与多级安全模型相结合,提出了一种信任动态多级安全模型。模型根据用户的可信度,使其权限在某一范围内动态变化。采用该机制能细化访问粒度,增强系统实用性;还能降低威胁风险,提供完善的系统保护。

关键词: 可信度, 多级安全, 模型, 操作系统

Abstract: The paper proposes a dynamic multilevel security model based on belief, which integrates the belief mechanism and multilevel security model. According to the user’s reliability, his privileges are changed in a special range. The new model makes the access more precise and improves the practicability of the system, and it also reduces the risk of the threaten for the system and provides protects perfectly.

中图分类号: 

• TP309