Episode 37 — Build PKI Architecture That Works: CA/RA, Templates, OCSP Stapling, Certificate Types
This episode explains how to build PKI architecture that works in production, which SecurityX tests because certificate failures can cause outages, trust breakdowns, and security gaps that ripple across identity, encryption, and application integrity. You’ll learn the roles of certificate authorities and registration authorities, how trust chains are established, and why separation between issuing CAs and root CAs matters for both security and recoverability. We’ll cover certificate types and use cases, including TLS server certificates, client authentication certificates, code signing, email certificates, and device identity, and you’ll learn how templates and profiles enforce consistent key sizes, validity periods, subject naming, and intended key usage. Revocation and status checking are treated as operational necessities, so you’ll explore CRLs, OCSP, and OCSP stapling, including why revocation sometimes fails in real environments and how to design around reliability and latency concerns. Troubleshooting includes expired certificates, mismatched SAN entries, incomplete chains, weak key protection, and renewal processes that depend on a single admin with a calendar reminder, which is a failure mode disguised as a process. By the end, you should be able to answer exam scenarios by reasoning from trust requirements, lifecycle management, and service continuity rather than by memorizing acronyms alone. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
