← Cryptography

Applied Cryptography

Real-world cryptographic systems — key management, modern authentication, zero-knowledge proofs, post-quantum readiness, and the failures that break everything

The fundamentals provide primitives. Applied cryptography is where those primitives meet production systems — key lifecycle management, passwordless authentication, privacy-preserving proofs, quantum-resistant algorithms, and the implementation mistakes that undermine even perfect mathematics.

9. Key Management 10 min
10. WebAuthn and FIDO2 10 min
11. Zero-Knowledge Proofs 10 min
12. Post-Quantum Cryptography 10 min
13. Cryptographic Failures 10 min
14. Applied Cryptography Check quiz
15. Lab: WebAuthn Registration Flow 25 min lab