关键词: 血统, 文件安全, 安全模型

Abstract: The authorization mechanism of operating systems usually puts importance on access control on the bias of taking a file as an isolated object, but ignores the security relationship between files, which implies many flaws. On the inspiration of describing the relationship between objects by means of lineage, a file lineage security model was presented, and its performance and security characteristics were analyzed.

Key words: lineage, file system security, security model