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2021 Defcon Tor Badge

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  • haxovyk
    replied
    Originally posted by seeess View Post
    I received the working boards so it looks like this is happening, here are the details:

    What it does - It acts as a mini lie detector. The badge has two primary sensors, a GSR sensor and a heart rate sensor. These are two of the sensors used in a polygraph machine. The output of these sensors with some statistics is graphed to each of the two 1.3" OLED screens.
    Use it to interrogate your friends, or to practice how to get through your next fed-job interview

    Hardware - It is run off a cortex M0+ arduino based xiao, that you can connect to via USB-C. The stock firmware also outputs the raw data over serial USB to allow further analysis of the data on a computer. There is one 1.69bis SAO header, finger cuffs used for the GSR sensor, and is run off two AA batts with a boost vreg to 3.3v.
    There are 0.1" headers for every pin on the xiao. There is also 3.3v/gnd and other 0.1" holes available for prototyping.

    Where to buy - Because Tor does not have a vendor booth this year, I've teamed up with hacker warehouse who has agreed to help sell them at their vendor booth.
    Their booth will be in the vendor area of the conference, which I believe is open Thursday - Sunday (check the defcon schedule for details). Hacker warehouse will have to charge tax as they are not a non-profit.

    Price - $120 including tax which includes the badge, custom lanyard, finger cuff cable, two sets of batts, stickers, and probably some googly eyes

    All profits from the sale of this badge go directly to the Tor project, just like 2 years ago. I am not funded by anyone, I front all costs of development myself. I do not charge for my time or effort, I only hope to recoup any material costs.
    If you choose to purchase a badge, thanks for supporting Tor.

    Source code and instructions on how to reflash the badge (via an arduino IDE) will be available prior to defcon on github. Source is licensed under the permissive WTFPL

    There will be at least one challenge (that @gigstaggart dreamed up) with a prize going to the winner

    I will post a video of the badge in action and all the features it has, if I ever get out of soldering-hell over here. I expect to have that available a few days before defcon starts so everyone can determine if it is worth it to them.

    Here's a higher-res picture with the current state of the interface (there are some other modes besides this primary lie detector mode).

    Click image for larger version

Name:	zQhVDHG.jpg
Views:	3634
Size:	429.0 KB
ID:	238140
    Wow, it's an amazing thing. I'm totally noob in this community, but I appreciate it.

    Leave a comment:


  • Lightbulb
    replied
    Saw one of these today on someone, really sharp! I’m planning on hitting Hacker Warehouse tomorrow for sure

    Leave a comment:


  • ValhallaRabbit
    replied
    fascinating. ill be stopping by to pick one up!

    Leave a comment:


  • seeess
    replied
    Here is the video overview of the defcon 29 Tor badge that goes through the different features and how to use them: https://www.youtube.com/watch?v=aaRbma9SlGY

    Also the code and manual has been posted: https://github.com/seeess/Defcon-Tor-29-Badge

    Leave a comment:


  • Cyph3r
    replied
    Thanks for the reply. Looking forward to snagging this one.

    Leave a comment:


  • uberfoo
    replied
    Definitely going to try and grab one of these.

    Leave a comment:


  • seeess
    commented on 's reply
    There is no pre-order, they will be for sale at the "hacker warehouse" vendor area during whatever the vendor hours will be. They take cash and credit card.
    I'll bring a few with me to the defcon shoot on wednesday if you're in town early. I'll have a few to sell directly if you really want to meet up before the vendor area is open. Message me on twitter if you're interested in that

    defcon shoot info: https://forum.defcon.org/node/237363

  • Cyph3r
    replied
    Is there any way to pre-order or is it cash in-person?

    Leave a comment:


  • Aleas
    replied
    Love it, looking forward to picking one of these up.

    Leave a comment:


  • seeess
    replied
    I received the working boards so it looks like this is happening, here are the details:

    What it does - It acts as a mini lie detector. The badge has two primary sensors, a GSR sensor and a heart rate sensor. These are two of the sensors used in a polygraph machine. The output of these sensors with some statistics is graphed to each of the two 1.3" OLED screens.
    Use it to interrogate your friends, or to practice how to get through your next fed-job interview

    Hardware - It is run off a cortex M0+ arduino based xiao, that you can connect to via USB-C. The stock firmware also outputs the raw data over serial USB to allow further analysis of the data on a computer. There is one 1.69bis SAO header, finger cuffs used for the GSR sensor, and is run off two AA batts with a boost vreg to 3.3v.
    There are 0.1" headers for every pin on the xiao. There is also 3.3v/gnd and other 0.1" holes available for prototyping.

    Where to buy - Because Tor does not have a vendor booth this year, I've teamed up with hacker warehouse who has agreed to help sell them at their vendor booth.
    Their booth will be in the vendor area of the conference, which I believe is open Thursday - Sunday (check the defcon schedule for details). Hacker warehouse will have to charge tax as they are not a non-profit.

    Price - $120 including tax which includes the badge, custom lanyard, finger cuff cable, two sets of batts, stickers, and probably some googly eyes

    All profits from the sale of this badge go directly to the Tor project, just like 2 years ago. I am not funded by anyone, I front all costs of development myself. I do not charge for my time or effort, I only hope to recoup any material costs.
    If you choose to purchase a badge, thanks for supporting Tor.

    Source code and instructions on how to reflash the badge (via an arduino IDE) will be available prior to defcon on github. Source is licensed under the permissive WTFPL

    There will be at least one challenge (that @gigstaggart dreamed up) with a prize going to the winner

    I will post a video of the badge in action and all the features it has, if I ever get out of soldering-hell over here. I expect to have that available a few days before defcon starts so everyone can determine if it is worth it to them.

    Here's a higher-res picture with the current state of the interface (there are some other modes besides this primary lie detector mode).

    Click image for larger version

Name:	zQhVDHG.jpg
Views:	3636
Size:	429.0 KB
ID:	238140

    Leave a comment:


  • kathysrazor
    replied
    The image is blurry - is that an ESP8266 in the corner?

    Leave a comment:


  • KillaByte
    replied
    Yeah i get it, its a pain to sell online. I will probably go the route of someone buying for me in-person. Thank you for your contribution!

    Leave a comment:


  • seeess
    commented on 's reply
    I'm hoping to work with a friendly vendor to help me sell these at their booth, but that is not confirmed yet. Once I have the badges in hand and I know they work I'll finish ordering other necessary components like lanyards, batteries, boxes, etc.
    I don't have a price yet because I don't know my final costs on everything. And selling at a friendly vendor booth requires them to collect tax since Tor doesn't have a non-profit booth this year.
    I expect it to be sub $150 for everything... dual soldermask badges, lanyards, two sets of batts, stickers, fingercuffs (for the GSR sensor), box, etc. That's more than I wanted it to be, but having a xiao that is arduino-reprogrammable via usb-c, 1.3" dual OLEDs instead of the typical 0.96", and finger cuffs are not cheap. And there has to be a profit in there for Tor, otherwise it's not a very effective fundraiser.
    I pretty happy with the prototype, I'll have a full video walk-through beforehand so everyone can decide if they think it is worth it to them.
    I will update this thread and post on twitter when I have more concrete plans.

  • dmr
    replied
    If you don't have a vendor booth/table, do you know when and where these will be sold? Also, any approximate price?

    Leave a comment:


  • seeess
    commented on 's reply
    I plan on selling all that I can in-person. If I'm left with anything after defcon I'll first offer the badges for Tor to sell through their site (though they didn't have much interest previously).
    I'd rather not sell them myself, I'm not setup for the logistics of shipping stuff out (I'd be standing in line at the post office and I'd be paying retail shipping rates). Plus I don't really want to collect anyone's addresses.
    Basically your best option is to try to find someone at defcon that can buy one for you. Another possibility is I could re-make these badges next year if Tor has a proper vendor booth in 2022, but I'm not sure how many people will be interested in "last year's" badge in 2022.
    If you've been running a Tor exit node for 6+ months or something maybe I'll make an exception.
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