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#1 2017-12-28 03:00:16
- HackAgenda
- Contributor
- Registered: 2017-12-28
- Posts: 10
Greetings earthlings
Good solar orbit, earthlings,
Just got my Proxmark3 and trying to clone and decode some Keri NXT (N-number) tags. Running on OS X with brew. Lots of experience with static analysis, disassembly, etc. and hoping to use it to figure out the Keri N coding scheme. Looking forward to collaborating.
Cheers,
A. N. Alien 
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#2 2017-12-28 05:45:49
- Dot.Com
- Contributor
- From: Hong Kong
- Registered: 2016-10-05
- Posts: 180
- Website
Re: Greetings earthlings
Welcome to the forum! Sorry iceman. Got to hijack this post.
Nice. Keri N Tag is based on pyramid or secura coding ?
Post to the relevant topics. I will try my best to help you with it.
Last edited by Dot.Com (2017-12-28 05:48:20)
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#3 2017-12-28 08:34:27
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,538
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Re: Greetings earthlings
Welcome and I suggest you read http://www.proxmark.org/forum/viewtopic.php?id=1125 as an introduction.
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#4 2017-12-29 02:09:18
- HackAgenda
- Contributor
- Registered: 2017-12-28
- Posts: 10
Re: Greetings earthlings
Thanks guys!
I've successfully cloned a Keri NXT tag - lf search u detects it as an unknown format, and it isn't the same as Pyramid or Secura as far as I can tell, it's an FSK RF/50 inverted format with a 128-bit repeating code. The 128-bit code contains a 26-bit Wiegand-style code with an 8-bit site code and 16-bit user code (figured that out from the Doors.NET manual), but the 26 bits are encrypted into a 96-bit field that seems impenetrable so far. I'll open a new topic for it in the 125kHz forum.
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#5 2017-12-29 16:16:47
- iceman
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- Registered: 2013-04-25
- Posts: 9,538
- Website
Re: Greetings earthlings
This is the introduction section, please post in relevant categories
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