Re: [openssl-users] Pre-TLS Handshake Data

This is a client hello message in the TLS protocol sent from the client. Full spec is found on https://www.ietf.org/rfc/rfc5246.txt and I suggest using Wireshark to analyze network traffic but basically your message is described by 16 Content type (handshake) 03 01 TLS versio

Re: [openssl-users] Pre-TLS Handshake Data

On 20/04/18 04:26, Gary Johnson wrote: > Hey Folks, > > I'm trying to figure out what this data is that is being sent pre-handshake: > > $ openssl s_client -connect google.com:443 > -debug -state -msg > CONNECTED(0005) > SSL_connect:before/connect initialization > wr

[openssl-users] Pre-TLS Handshake Data

Hey Folks, I'm trying to figure out what this data is that is being sent pre-handshake: $ openssl s_client -connect google.com:443 -debug -state -msg CONNECTED(0005) SSL_connect:before/connect initialization write to 0x7ff53bc07c20 [0x7ff53c002e00] (318 bytes => 318 (0x13E)) - 16 03 01 0