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The Illustrated TLS 1.3 Connection
source link: https://tls13.xargs.org/
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Every byte explained and reproduced
In this demonstration a client connects to a server, negotiates a TLS 1.3 session, sends "ping", receives "pong", and then terminates the session. Click below to begin exploring.
Client Key Exchange Generation
Client Hello
Server Key Exchange Generation
Server Hello
Server Handshake Keys Calc
Client Handshake Keys Calc
Server Change Cipher Spec
Wrapped Record
Server Encrypted Extensions
Wrapped Record
Server Certificate
Wrapped Record
Server Certificate Verify
Wrapped Record
Server Handshake Finished
Server Application Keys Calc
Client Application Keys Calc
Client Change Cipher Spec
Wrapped Record
Client Handshake Finished
Wrapped Record
Client Application Data
Wrapped Record
Server New Session Ticket 1
Wrapped Record
Server New Session Ticket 2
Wrapped Record
Server Application Data
Note: Updated April 2022 to move from an experimental library to OpenSSL 3.0.1. The original version of this page is archived here.
The code for this project, including packet captures, can be found on GitHub.
If you found this page useful or interesting let me know via Twitter @XargsNotBombs.
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