http://i3xi5qxvbrngh3g6o7czwjfxwjzigook7zxzjmgwg5b7xnjcn5hzciad.onion/proposals/294-tls-1.3.html
Our current circuit-layer protocol safeguards the majority of our security
and anonymity guarantees, while our TLS layer has historically been either a
stop-gap and/or an attempted (albeit usually not-so-successful) obfuscation
mechanism. However, our TLS usage has, in many cases, successfully, through
combination with the circuit layer cryptography, prevented more then a few
otherwise horrendous bugs.