EAN: 9783031012051

SYNTHESIS LECTURES ON INFORMATION SECURITY PRIV...

Operating systems provide the fundamental mechanisms for securing computer processing. Since
the 1960s  operating systems designers have explored how to build secure operating systems -
operating systems whose mechanisms protect the system against a motivated adversary. Recently 
the importance of ensuring such security has become a mainstream issue for all operating
systems. In this book  we examine past research that outlines the requirements for a secure
operating system and research that implements example systems that aim for such requirements.
For system designs that aimed to satisfy these requirements  we see that the complexity of
software systems often results in implementation challenges that we are still exploring to this
day. However  if a system design does not aim for achieving the secure operating system
requirements  then its security features fail to protect the system in a myriad of ways. We
also study systems that have been retrofit with secure operating system features after an
initial deployment. In all cases  the conflict between function on one hand and security on the
other leads to difficult choices and the potential for unwise compromises. From this book  we
hope that systems designers and implementors will learn the requirements for operating systems
that effectively enforce security and will better understand how to manage the balance between
function and security. Table of Contents: Introduction   Access Control Fundamentals   Multics
Security in Ordinary Operating Systems   Verifiable Security Goals   Security Kernels  
Securing Commercial Operating Systems   Case Study: Solaris Trusted Extensions   Case Study:
Building a Secure Operating System for Linux   Secure Capability Systems   Secure Virtual
Machine Systems   System Assurance

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