Golden jellyfish in Jellyfish Lake on the island of Eil Malk, Palau (© Nature Picture Library/Alamy)

This document describes a mechanism that, through the use of opportunistic Transport Layer Security (TLS), enables encryption of

IETF Hackathons encourage the IETF community to collaborate on running code related to existing and evolving Internet standards.

The aspen canopy along the Last Dollar Road near Telluride, Colorado (© Grant Ordelheide/Tandem Stills + Motion)