Source: http://feeds.gawker.com/~r/lifehacker/full/~3/cJ2i08jt0cw/norbt-sends-top-secret-encrypted-messages
Web application Norbt (short for "no robot") creates web pages with encrypted text; only people who can answer your challenge question can access the text. Got anything secret you want to share?
Norbt uses browser-based cryptography to secure your information and keep it safe until someone with the correct answer to your challenge question comes along. As a bonus, you can create whatever challenge question and answer you want. There's no sign of the typical "High School Your Maternal Grandparents Went To" type stuff, which is always frustrating to remember. You'll need a separate password to re-access the information yourself to make changes, so making one you can keep track of is a good thing.
Once your Norbt is created, you can share the link freely with anyone. Even if you don't have anything pressing to send to a friend or family member across the web, it could be fun to send your friends locked messages or love letters. Just don't get the two confused. If you're not sure you want to trust any secret missives to Norbt without a better idea of how they secure your text, check out their security page. And while we wouldn't put any of our most sensitive data in Norbt, it is, at the very least, a fun tool for sharing information.