There’s a challenge at the Google Blogoscoped forum to decrypt a code into plain text using Google and two clicks.

My first reaction would be that this could be something to do with Google and Cookies or perhaps GMail. These are probably the most obvious places for encyption to be used. I looked at my google.com SID cookie and found it was 160 characters long whilst this code was 283 characters. In addition, the SID probably wouldn’t have done much anyway and you’d have to tamper with the cookies to do anything.

It would be pretty interesting to see how this works

In a related note, I’m currently reading Digital Fortress by Dan Brown which is kind of about encryption. Strongly recommended