Security Architecture and Design Study PlanComputer Security System Architecture Computer Architecture The Central Processing Unit Multiprocessing Operating System Components Memory Types Virtual Memory Input/Output Device Management CPU Architecture Operating System Architectures Virtual Machines System Security Architecture Security Policy Security Architecture Requirements Security Models State Machine Models Bell-LaPadula Model Biba Model Clark-Wilson Model Information Flow Model Noninterference Model Lattice Model Brewer and Nash Model Graham-Denning Model Harrison-Ruzzo-Ullman Model Security Modes of Operation Dedicated Security Mode System High-Security Mode Compartmented Security Mode Multilevel Security Mode Trust and Assurance Systems Evaluation Methods Why Put a Product Through Evaluation? The Orange Book The Orange Book and the Rainbow Series The Red Book Information Technology SecurityEvaluation Criteria Common Criteria Certification vs Accreditation Certification Accreditation Open vs Closed Systems Open Systems Closed Systems A Few Threats to Review Maintenance Hooks Time-of-Check/Time-of-Use Attacks