Last month, Bruce Schneier and I announced a public cryptographic challenge: help figure out how to create ciphers and other privacy applications for my code-wheel wedding rings, designed by Bruce and created by Isabel Rucker.
Out of the submissions, there were a couple dozen that were really strong contenders, and Bruce picked two to receive the winner and runner-up prize.
My wife and I will take great pleasure in using both ciphers to communicate in private!
Thanks, guys -- your prizes are in the mail (and thanks to everyone who contributed suggestions to this!).
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.