How to Exchange Encrypted Messages on Any Website
After last year’s revelations about U.S. Internet surveillance raised interest in privacy tools, Google and Yahoo both announced they were working on software to let people who use their e-mail services easily exchange encrypted messages. Now a prototype browser extension called ShadowCrypt, made by researchers at the University of California, Berkeley, and the University of Maryland, goes even further. It makes it easy to send and receive encrypted text on Twitter, Facebook, or any other website.