I got a great seat on the main floor for the first big DEFCON 22 talk which is a welcome to the con and discussion of the badge hardware. [LosT], the creator of this year’s badge, started the discussion with a teaser about the badge… there’s a phone number hidden as part of the challenge. [LosT] took a call from someone chasing the puzzles. The guy was in the audience which was pretty fun.
The process of building a puzzle that can be solved at DEFCON is really tough. How do you make it just hard enough that it won’t get pwned right away but easy enough that a large number of attendees will be able to figure it out during the weekend? The answer is to build a secure system and introduce strategic flaws which will be the attack vectors for the attendees solving the badge challenge.
Of course the badge can be used as a development platform. The populated electronics on the board all have these nice little footprints which can be cut to disconnect them from the chip. The breakout headers on either side of the board allow you to connect headers for your own uses. Great idea!
The back of the lanyards have special characters on them too. This encourages community at the conference. To solve the puzzle you need to find others with different lanyards. Compare the glyphs and crack the code (so far I have no clue!!).
Know what I’m doing wrong? Have suggestions on where to go from here? I’ll be checking the comments!