[coldpie]

The linked-through blog article describing the decryption process was interesting:

http://www.contextis.co.uk/resources/blog/hacking-canon-pixm...

What I especially liked is that this was literally one of the challenges from the Matasano crypto challenges:

http://cryptopals.com/sets/1/challenges/6/

It's fun when theory meets practice.

[Tomte]

Do the solution links work for you? I've never seen a link that doesn't return "Not Found".

[coldpie]

No. Like the homepage says, the site is incomplete. But really you shouldn't be looking at the solutions, anyway.