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TLS & Certificates

Securing a connection: TLS gives confidentiality, integrity, and authentication via a handshake; certificates and PKI prove identity; and mutual TLS gives each device its own identity, at a real cost on MCUs.

26 min read

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5 interview questions on this topic

Each one opens a full worked answer.

What three guarantees does TLS provide, and how?Walk through what happens in a TLS handshake.What is a certificate and how does the chain of trust work?What is mutual TLS and why is it common in IoT?What makes TLS challenging on a constrained embedded device?

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TLS & Certificates | EmbeddedPrep.io