First page Back Continue Last page Summary Graphics
Layer model: secured protocols
- Application layer: SSH, PGP, Kerberos, S-HTTP
- Transport layer: SSL/TLS as extension of TCP socket model
- Network layer: IPSec, IPv6
- Link Layer: WEP, PPP/ECP
- Physical layer: Alarmed, pressurized conduits
The two approaches we will look at today are using SSL(TLS) and SSH.
Notes:
"Security" can be shoehorned into any layer of the TCP/IP stack
Tradeoffs between cost, overhead, scalability, etc.