Formalization Model and Verification of Audit Buffers

As a very important component of secure information system,audit system plays a key role in monitoring the system,insuring proper implementing of security policy and building Intrusion Detection System.This paper introduces a subclass of Petri net——temporal Petri nets which is used to build a model for implementing the management scheme of audit buffers.Based on it,we analyzed and verified the properties of system safety and liveness.By using temporal logic,this method can break the limitations imposed by Petri nets,which lack the ability to describe the temporal rela- tions between system events.Moreover,temporal Petri nets exert the advantages of Petri nets which can effectively de- scribe and analyze the system concurrency and physical structures for the purpose of system verification.