Review and Prospect for Information Flow Security Technology

With the rapid development of computer and network technology,their systems are also attacked increasingly.The conventional security mechanisms,such as access control,intrusion detection and encryption only focus on the controls of information release,without fully ensuring end-to-end security.By using information flow analysis in the system,we can ensure the legality of their information flow.This paper overviews the typical models of information flow and their corresponding analysis methods.It describes briefly the applications and comparisons of these methods.The paper also gives the future research directions for the analysis methods of information flow security.It concludes that the analysis methods of information flow are feasible to achieve the end-to-end information security.