From the article: “Encryption tools are notoriously hard to use. But several projects are working to change this, building a more polished breed of encryption software that can serve the everyday consumer. A new open source project called Briar is part of this crowd, but it puts a fresh twist on the idea. It doesn’t just encrypt your messages. It lets you jettison your messaging service provider altogether. Your messages travel straight to the person you’re sending them to, without passing through a central server of any sort. It’s what’s known as a “peer-to-peer” tool.
This has a few advantages. You and your contacts keep complete control your data, but you needn’t setup your own computer server in order to do so. Plus, you can send messages without even connecting to the internet. Using Briar, you can send messages over Bluetooth, a shared WiFi connection, or even a shared USB stick. That could be a big advantage for people in places where internet connections are unreliable, censored, or non-existent.”
Read the full Wired article here: https://www.wired.com/2014/05/briar/