文件安全性血统的演变方法

Evolvement Technique of File Security Lineage

现有的操作系统文件安全一般采用授权机制,它忽略了文件之间存在的安全性关联。血统是动物之间固有的一种亲缘关系,该文借鉴血统描述文件的宗亲关系,建立了一个安全体系。给出了文件血统的基本定义和模型的描述,并以Linux为背景,给出了一个文件血统的建立、演变、杂交和权限运算的文件安全机制。

The current operating systems adopt authorization mechanism generally,and the security relationships of the files are neglected.The lineage is a kind of inherent kindred among the animals.Drawing lesions from lineage to describe relationship of files,a security system is established in this paper.The paper defines the file lineage,describes the model,and gives a file security mechanism which is achieved through the file lineage's foundation,evolvement,cross and permission operation,based on Linux background.