When my wife and I started to plan our wedding, we inevitably turned to the question of rings, and it was only a matter of time before we came to the idea of rings with little wheels on them that could be used as crypto devices, in the manner of super-duper Captain Midnight Decoder Badges.
So we asked Bruce Schneier for some advice and he suggested that we make each ring with one static band and two rotating ones, each inscribed with the alphabet. The first wheel has dots on the letters, alternating above, none, below. The second wheel has the repeating sequence of above, above, none, none, below, below. The third wheel has the repeating sequence of above, above, above, none, none, none, below, below, below (it sounds confusing, but you can see a chart here).
The rings were made in white gold by Isabel Rucker (daughter of master cyberpunk author Rudy Rucker -- and a fantastic jeweler in her own right) and they turned out great.
Now it's time that we turn to the Internet with a challenge: given these two matching rings, what crypto applications can you come up with? Could you use them to scramble passwords (possibly hashed with a key)? How about encoding messages for secret transmission? What additional common apparatus (say, different-sized coins) could you use to generate initialization vectors and increase the system's security?
This is an open competition to be judged by Bruce "Applied Cryptography" Schneier and me -- the winner gets a copy of Little Brother signed by both of us. Post your submissions to the comments or send them to email@example.com before Oct 1, 2008.
Crytpo Wedding Ring
Burbank's amazing quarter-century institution Dark Delicacies is a horror book-, memoribilia- and clothing-store that is a community hub for genre creators, hosting a wonderful stream of events, signings, and even an annual chance to get your photo took with Krampus at a Christmas open-house.
Neil Gaiman says Edgar Allan Poe should be read aloud, and he's right: he recorded this video of him reading "The Raven" in 2016 as part of Pat Rothfuss's Worldbuilders charity drive. It's Poe's birthday today, and I can think of no better way to celebrate it than to listen to it again.
The next installment in the SFinSF reading series features Kim Stanley Robinson, Howard Hendrix, and Cecelia Holland; it's this Sunday, Jan 20, doors at 6, event at 6:30, $10 (no one turned away for lack of funds), at the The American Bookbinders Museum (355 Clementina).
These days, there isn’t much our iPhone camera can’t do – except feel like an actual phone. Despite years of steadily increasing resolution and image sensing technology, we’re still taking shots awkwardly with two hands, fumbling for the shutter button. Leave it to an avid photographer to design Shuttercase, a versatile iPhone case that solves […]
Still determined to keep those New Year’s health resolutions? If you’re going to stick with the exercise plan, it’s enough of a challenge to budget your time. No need for your financial budget to take a hit, too. Here’s a more convenient – and cheaper – alternative to a gym membership or Peloton bike: Two […]
Want a career in web design? It’s true that these days, most anyone can throw up a page or two. But for true workhorse web design, you’ll sometimes need to match the platform to the project. Enter the Complete Front-End Developer Bundle, an educational grand tour around the best tools for the web. For beginners, […]