A validated security policy modeling approach

The paper presents a security policy modeling approach that can be applied to many types of systems, including networks and distributed systems. The approach is driven by security requirements and by system architecture. It is compatible with the modeling principles offered by recent modeling guidelines and the TCSEC modeling requirements at the B1-A1 assurance levels. The approach has been validated through its application to various development, certification and research projects, including tactical systems, secure gateways, and C³I systems. The approach presented here has been favorably reviewed by security evaluation teams for government agencies. The paper illustrates the approach by applying it to an example tactical system