AND!XOR DC27 Badge

The trilogy is done

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  • Wouldn't you like to know


  • Wouldn't you like to know

WHO:: We are 5 dudes from California (and a guest star from Texas) with backgrounds in HW and SW engineering. We enjoy building and hacking things for fun. AND!XOR pronounced..."AND-NOT-EX-OR"...

WHAT:: We built a hackable, open badge for use at DEFCON 27 in Las Vegas and any other conferences in the future. The badge also serves as a dev board for hardware developers of any experience level from novice to expert sorcerer.

WHY:: The purpose is to put some really awesome hardware around the necks of a bunch of hackers and see what they come up with. We hope to encourage others to make use of the badge and come back with their own flavor in years to come, AND to promote embedded development across the community. Most importantly, the badge serves as a way to teach principles about security and hacking.

HOW:: Pure internet science. We've developed algorithms which calculate the spin rate of cat quarks for generating our ssh keys at a rate of (P+9)/((# of blackberry users)^2), where P is the probability that a cat will leave a house when a door is opened for them.

WHERE:: Paris / Bally's / Planet Hollywood, Las Vegas

WHEN:: Aug 7th - Aug 11th, 2019

EXTRAS:: We are spending our free time and money outside of our busy work schedules to develop this from 5 separate locations across the US. So we are definitely open and encourage feedback, suggestions, and features to be added onto the badge. If you complain that there are not enough blinky's happening then you are welcome to build your own. Feel free to Leave your comments below if you have questions, concerns, comments, philosophical statements, haiku's, or send us a tweet...that works too.

Twitter:: Check out AND!XOR, our official twitter account on twitter for daily and often hourly updates of the badge process.

  • CypherCon - Hotel Hackery, Good Friends, and Good Times

    Hyr0n5 days ago 0 comments

    HAI 2600

    So you may be wondering why the first log of our DEF CON badge project is titled after another conference: CypherCon. Something we briefly talk about but don't emphasize enough is that the members of AND!XOR are geographically distributed; i.e. we don't live near one another. So a few times a year we try to meet up at security conferences. From a "working on the badge" perspective this is what allows us to do things IRL, hang out together in the hotel rooms at night, debug the badge, design puzzles and hack the night away. See actual photo below... 

    But more importantly, socialization within other conferences, going to talks, and their villages is the main reason we go. Zapp has been there before and this was Hyr0n's first visit to Wisonsin. Overall a wonderful experience. Got to see old friends (Addie, Whisker ,Wire, GoetzmanWill, Krux, CarFucar, Mike SzczysViGreyTech), make new ones, even meet people we've talked to on Twitter for the past couple of years and have always missed one another in person (Rick Ridgley comes to mind, also we just need to say @d1g1t4l_t3mpl4r is a gentleman and a phreaking badass). It stresses me out to write this right now in fear that I forget to list someone's name from the weekend for love and shoutouts. If I did forget, don't hate me. I'm on 3 hours of sleep writing on an airplane with a screaming child behind me (I'm lucky to even get coherent sentences typed at this point). Just a reminder that you should always expand your scope beyond a single conference, attend as many as you can across the globe, since each one has a different vibe and you get to meet many awesome people. What can we say about CypherCon? It feel's like family. Everyone is so nice and welcoming, we love visiting the mid-west and need to get out there more often. We'll be back next year for certain.

    CypherCon TyMkrs Badge Challenge

    The ToyMakers created an amazing badge this year, it read paper tapes. As in, 50 years ago technology paper tapes and you had to either hand punch or submit jobs to create punched paper tape. You can see Hackaday Mike showing it here. Its not our place to go in to the depths of how their challenge worked, the scoring, etc... (that's someone else's write up to be done), but we can explain our part in it. Like many of the other villages, we were given code cards by Whisker to hand out in "whatever manner we see fit." Note, this also unofficially makes AND!XOR the first nomadic village right? See Zapp & Hyr0n brainstorm below...

    Actually what we came up with isn't at all that original (many groups have used SSTV in the past) but it added layers of fun for some folks to learn something new while trying to get punch codes. We took a photo of the card and used Robot36 Slow Scan TV encoding. After all, if we are using 50+ year old computer program technology, what better way to transmit photos than with 50+ year old RF encoding technology? This creates a 36 second audio file which sounds amazing and was used as a voicemail. The phone number was released. Boy did we get some great voicemails from the conference attendees :) Anyway, once someone heard our recording they used an SSTV Decoder on their computer to translate the noise into a photo (assuming they knew what it was, if not then there was a lot of talk with the HAM folks or scouring the SigIDWiki.

    Yeah its really bad quality. In fact any background noise affects the decoding. It made us smile to walk into the restroom and to see a few hackers huddled in the corner calling the voicemail since it was the quietest place they could find? Here's the original photo for comparison.

    As you can see it probably took quite a few phone calls from devoted individuals to get enough samples...

    Read more »

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Mike Szczys wrote 03/19/2019 at 00:20 point

I'm cornering the world's supply of potatoes... better hope you secured your supplychain before giving away that nugget of info.


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Sophi Kravitz wrote 03/13/2019 at 14:20 point

WOOOHOO excited to see this one! Internet science of cats LOL.

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