Computer Networking › Section H · Security in computer networks › Topic H.6
Securing TCP connections: TLS
Transport Layer Security turns an ordinary TCP connection into one that is private, tamper-evident and connected to the right server. It protects almost all web traffic, and its current version, TLS 1.3, does so in a single round trip.
In this topic
- Where TLS fits
- What the handshake must achieve
- From one secret to several keys
- Records, sequence numbers and closure
- The TLS 1.3 handshake
- Worked example: connecting to a shop
- Worked example: counting round trips
- Forward secrecy and resumption
- What TLS 1.3 removed
- Common mistakes to avoid
- Key takeaways
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