Solution and implementation for Q12 from Computer Networks (cnl).
HOW TO CAPTURE TLS PACKETS - SIMPLE STEPS
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1) Open Wireshark on your computer.
2) Choose your active connection
(Wi-Fi or Ethernet) from the list.
3) Type this filter in the green bar:
tls
Press Enter.
4) Open your browser and visit:
https://sha256.badssl.com/ or badssl.com
5) Go back to Wireshark → Stop capture (red square).
6) Look for these words in the "Info" column:
- Client Hello
- Server Hello
- Certificate
- Application Data
Done! You now have a full TLS handshake.