"cjdns.info --- Encrypted networking for regular people.
Cjdns implements an encrypted IPv6 network using public key cryptography for address allocation and a distributed hash table for routing. This provides near zero-configuration networking without many of the security and robustness issues that regular IPv4 and IPv6 networks have."
"The Web Authentication API (also known as WebAuthn) is a specification written by the W3C and FIDO, with the participation of Google, Mozilla, Microsoft, Yubico, and others. The API allows servers to register and authenticate users using public key cryptography instead of a password."
'Keybase is a new and free security app for mobile phones and computers. For the geeks among us: it's open source and powered by public-key cryptography. Keybase is for anyone. Imagine a Slack for the whole world, except end-to-end encrypted across all your devices. Or a Team Dropbox where the server can't leak your files or be hacked.'
Cryptocat is free software that aims to provide an open, accessible Instant Messaging environment with a transparent layer of encryption that works right in your browser.
Qabel is a software platform that allows users across applications to en-crypt all digital communication always and easily end-to-end. In many cases, users can continue using their standard programs.