Summary

This chapter introduced computing architectures suitable for uses that require an exceptional assurance of security. Critical application areas such as national security systems and financial transaction processing demand this high level of protection. These systems must be resilient against a broad range of cybersecurity threats including malicious code, covert channel attacks, and attacks enabled by physical access to the computing hardware. Topics addressed in this chapter included cybersecurity threats, encryption, digital signatures, and secure hardware and software design.

Having completed this chapter, you are able to identify many of the categories of cybersecurity threats a system will face and understand the security features of modern computer hardware. You understand some best practices for avoiding security gaps in system architectures and know how a secure computer architecture can help enforce security in software applications.

In the next chapter, we...