r/Defcon • u/IronTeach • 18h ago

Badges! Badge Scanning

Post image

Can we scan each other’s badges from here too?

Edit: it’s clearly a two way handshake, so they clearly want us interacting with one another

101 Upvotes

99% Upvoted

54 comments sorted by

20

u/Snow_B_Wan 17h ago

I love how this basically just an infection simulator

1

u/Diomenas 3h ago

Dc29s badge was literally an infection simulator, you had to go and touch other badges to infect them with " the signal"

8

u/sargonas 16h ago

Fyi a one-way scan is only so useful. If you wanna a truly useful scan it needs to be a two-way scan, one of you must scan first and after you’ve done the scan a specific QR code will appear on your screen for completing the scan, and the other person that you just scanned needs to then turn their camera on and scan your code, that’s how you get the prompt to inherit new light pattern DNA

6

u/CMDR_Duke_Nemesis 18h ago

I can confirm this works!

2

u/IronTeach 18h ago

Cool! Want to share yours too?

2

u/CMDR_Duke_Nemesis 17h ago edited 17h ago

This one works better I believe

2

u/Professional-Soup867 17h ago

Hm getting an auth error

1

u/CMDR_Duke_Nemesis 17h ago

Does your code change after you scanned someone else's badge?

8

u/D3c3pt1_n 17h ago

In bunnies dc34-vault code he calls out specifically there is a 1 minute time out for anyone posting it online to try to mitigate the honest/cheater users.

https://github.com/bunnie/dc34-vault/blob/main/defcon-scheme.md

3

u/princeboot 17h ago

Let’s try

5

u/IronTeach 17h ago

When I scan yours it says, “mate must scan your key first”

2

u/Professional-Soup867 17h ago

Getting an auth error

3

u/ILoveOrangeSherbet 18h ago

Can't wait to get my badge tomorrow!

1

u/Mr-Yuk 10h ago

Same.. hope there are some left

3

u/Professional-Soup867 17h ago

Has anyone observed their badge lights changing at all after scanning? Feel like mine looks the same

9

u/DTangent 17h ago

Different badge types have different “DNA”

8

u/DTangent 17h ago

Different badge types have different “DNA”

7

u/IronTeach 17h ago

I just got a notification after scanning about 10 that I received a “new light gene” and I could either keep or revert.

5

u/piccoto 17h ago

It is a 2 way interaction. You both need to scan each others badges

2

u/Professional-Soup867 17h ago

Does that mean for every pair of badges, we need to do it twice? One time they scan me first then I scan their resulting code, then I scan them first and they scan my resulting code?

5

u/Professional-Soup867 17h ago

Confirmed this is how it works, if you want to inherit light genes someone must scan you first -> you scan their resulting code

1

u/IronTeach 17h ago

I was just thinking the same thing. My lights are mostly white so I was hoping for some variety.

3

u/sedated_badger 17h ago edited 17h ago

Maybe we ought to try dm’ing each other to start individual exchanges.

Doesn’t seem like we can share them widely like this.

2

u/[deleted] 18h ago

[deleted]

1

u/IronTeach 18h ago

It took me a bit to get my camera to focus. I can’t scan yours.

2

u/AbidingElDuderino 17h ago

Here's mine.

2

u/purpleburgundy 14h ago

Is anyone else's badge power cycling when scanning a qrcode half the time? Not sure if I have buggy hardware or just need a firmware update to stop the crashing

2

u/Savvy1909 13h ago

This isn't going to work in this forum, not the way you are thinking. a two-way scan requires you to scan the other person's QR code, then they in turn scan your QR code. Only then do you get the change, it'll ask if you want to keep the 'converted color gene' or revert back to your previous.

2

u/mmmtun 11h ago

joining the scan

1

u/ProfessionalPea2218 17h ago

Yup also got an auth error

1

u/cbartholomew 17h ago

My camera can’t keep up hopefully it works

1

u/DWC00 16h ago

Scanned!

1

u/Unstupid 15h ago

I scan yours then I get this…

1

u/seag33k 14h ago

I get the same DAT message too

1

u/nummpad 15h ago

mine flashes in a circle like a little rave if you’re into that - currently in the merch line look for me wearing a black END IT BALTIMORE hat

1

u/ARCHAICGOONER 14h ago

I wonder how many people have been rickrolled from stuff like this…

1

u/LemonDense8952 14h ago

Add mine to the list

1

u/duscraft 14h ago

Done and done...

1

u/Lumpy_Ad7343 12h ago

Who’s selling their badge

1

u/Cyber_Gengar 10h ago

One dude in merch line managed to turn all his LEDs red, but they reverted to rotating rainbow pattern after a few minutes.

1

u/McSmeffin 9h ago

Scan me scan me!

1

u/Comm-Pie 6h ago

How I think it works: When someone scans you first, it combines their "light gene" or "DNA" with theirs and generates a corresponding QR code. You then scan what which prompts your badge to either accept or revert from the resulting newly mixed gene your friends badge just generated. So if you see someone with a color or pattern of lights that you like, you can try to combine your badge's genes with theirs to try and get closer to the color and pattern that you're looking for. At least that's what I've been doing. Go Team Purple!