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Bob_Zimmerman
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‎2025-04-08 08:07 AM
In response to PhoneBoy

Here's a screenshot of a negotiation I just caught demonstrating this:

A packet capture of a connection to 1.1.1.1. A Client Hello is selected. It shows handshake version TLSv1.0, handshake protocol client hello version TLSv1.2, then extension: supported versions with support for TLSv1.3.A packet capture of a connection to 1.1.1.1. A Client Hello is selected. It shows handshake version TLSv1.0, handshake protocol client hello version TLSv1.2, then extension: supported versions with support for TLSv1.3.

Incidentally, SSLv3 is protocol 0x0300, so TLSv1.0 is SSLv3.1. The actual implementation details of TLS are deeply irritating. I'm glad somebody else develops the libraries to deal with it.

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