Cryptography Essentials

Cryptography Essentials gives you a working defender's understanding of cryptography. Enough to reason about how systems protect data, why specific designs fail, and what questions to ask when reviewing a security control. You won't leave this course able to implement AES from scratch, and you don't need to. You'll leave able to read a system design and spot where cryptography is used well, where it's misused, and where it's missing entirely.