TLS & HTTPS
TLS handshakes, certificates, CAs, and a hands-on certificate analysis lab.
1. How TLS Handshake Works
Follow the TLS handshake from ClientHello to encrypted application data.
15 min
+19 XP
2. SSL Certificates
Read certificate fields: subject, issuer, validity, and SANs that browsers check.
15 min
+19 XP
3. Certificate Authorities
How CAs vouch for sites—and what happens when trust is broken.
15 min
+19 XP
4. Lab — Analyze SSL Certificate
Inspect a live HTTPS certificate with openssl and curl copy-paste commands.
25 min
+19 XP
5. Quiz — TLS/HTTPS
10-question quiz on TLS, certificates, and certificate authorities.
10 min
+19 XP