Crypto in Practice
Common crypto mistakes, key hygiene, and a final cryptography quiz.
1. Common Crypto Mistakes
Avoid homebrew crypto, reused nonces, and rolling your own protocols.
15 min
+47 XP
2. Key Management Basics
Generate, store, rotate, and revoke keys without leaving secrets in chat or git.
15 min
+47 XP
3. Lab — Encrypt & Verify a File
Hash and encrypt a sample file with OpenSSL, then verify integrity.
25 min
+47 XP
4. Quiz — Cryptography Basics Final
Final 10-question quiz across hashing, encryption, TLS, and crypto hygiene.
10 min
+47 XP