Network Security
| Layer | Security Protocol/Method | Protects connections between |
|---|---|---|
| Application | S/MIME | Mail-Client ←> Mail-Client |
| Transport | TLS | Browser, App ←> Web-Server |
| Network | IPsec | Router, NGFW ←> Router, NGFW Host ←> Router, NGFW Host ←> Host |
| Data Link | L2TP, IEEE 802.1X, IEEE 802.1AE (MACsec), IEEE 802.11i (WPA2/3) | Switch ←> Switch Host ←> Switch Host ←> Host |
| Physical | Quantum Cryptography |
Secure Network Protocols
How do we implement CIA Triad in networking?
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Relevant Note(s): Transport Layer Security, Attacking Network Protocols, Secure Channel, Network Access Control, MACsec, Trusted Network Connect, Zero Trust, DNSSec, IPSec, Firewall, Intrusion Detection System