Mandatory Access Control: Principles and Security Models

This lecture covers the principles of Mandatory Access Control (MAC) and Discretionary Access Control (DAC), explaining how MAC enforces security policies despite subversion attempts. It delves into security models, such as Bell-LaPadula for confidentiality and BIBA for integrity, illustrating how they work through examples. The Chinese Wall model is explored to prevent information flows between conflict sets, showcasing its application in real-world scenarios. Additionally, covert communication channels and the importance of sanitization in business contexts are discussed, emphasizing the need for security policies in various use cases.