TLS 1.3 - Get symmetric key

Hi!I'm trying (on the nodeJs server side) with TLS 1.3 to know (in clear/hex) the SYMMETRIC key generated on the server side with the Client Hello, anyone has a way to do this? I tried looking a lot but no-one apparently did it.Summar: CLIENT send TLS Handshake (Client Hello TLS 1.3 ) -> Server receives it, reply the Server Hello, with TLS 1.3, the server already know the symmetric key at that point (that will be used by both parties afterward), I just want to get it (as an arraybuffer or whatever format).Thanks everyone

Submitted January 31, 2020 at 08:12AM by AlexandroPixel