http://i3xi5qxvbrngh3g6o7czwjfxwjzigook7zxzjmgwg5b7xnjcn5hzciad.onion/proposals/195-TLS-normalization-for-024.html
Alternatively, if we are told a hostname in our Torrc (possibly in
the Address field), we could try to use that.
2. TLS handshake issues
2.1. Session ID.
Currently we do not send an SSL session ID, as we do not support session
resumption. However, Apache (and likely other major SSL servers) do have
this support, and do send a 32 byte SSLv3/TLSv1 session ID in their Server
Hello cleartext.