Trust Evaluation System Based On Temporal Locality Feature In Xen

With the development and wide application of virtualization technology, Integrated management platform based on virtualization technology advantage has become increasingly apparent, Virtualization platform security is paid great greater and greater attention. Because the virtual machine isolation structure result in that it take advantage of the bottom layer data flow monitoring, It is quite different between virtualization platform security theory and the traditional distributed stand-alone systems. Under the circumstances, The access control model based on technology of virtual machine introspection is largely researched and used.According to Temporal Locality theory and fuzzy mathematics degree of membership theory. Came up with Trust Evaluation Model based on Temporal Locality Feature in Xen.In the Trust System, Trust Model Which is the core of the system analyze file modification timestamp in the virtual hard disk On the basis to Temporal Locality Theory, And then Dynamically generate the file trust level. The file trust level is as the basis of user access to a particular file. On the basis of method of characteristics cloud, Trust model dynamically diagnoses the abnormal degree of user access the file system and generates the user trust information. It provides support to decision for access control system.Characteristics cloud model based on Temporal Locality Feature provide a method for behavior status value quantification application.