Simulate and Sniff Legic Prime

dutzen · 2015-08-11 18:41:57

Hi Everyone,
we have to investigate our university system, which used the Legic Prime chip and is now changing to legic advant. So for our seminar we have to attack the old system which we succeed by writing valid values to the card. The next step would be to emulate "own" cards with the proxmark3 and it would be nice to sniff to the traces.

So first: Emulating: Proxmark has already a function: "hf legic sim" [phase drift [frame drift [req/resp drift]]] Start tag simulator (use after load or read)

Which we used after reading a valid card but it didn't worked. Maybe someone can help us with that.

Second: Sniff traffic: We'd like to sniff the traffic between card and reader. But proxmark has no function to sniff legic traffic. We can only sniff 14a traffic without annotations but that didn't worked neither. I hope someone can help us with that, cause deadline is september

Best regards Dominik

iceman · 2015-08-11 18:54:04

Sadly enough, I don't have access to a legic/legic advant. If I have that, I might be able to help out.

dutzen · 2015-08-17 00:45:03

That is sad
But maybe you have already done something with the proxmark and a legic card in the past?
If you cant help us specificly maybe some hints or tricks?

iceman · 2015-08-17 09:46:26

Sorry, I havn't. Good luck with your thesis.

mosci · 2016-01-20 11:42:17

I can ( at least) provide some decoded tag-data ('hf legic decode' output) or samples
if that helps anyone

mosci · 2016-01-20 11:50:59

^^ legic prime - not legic advant

iceman · 2016-01-20 11:54:16

Sure, that data is always good to have.

The legic sourcecode has some issues with overflows, so remake and testing would be nice.

mosci · 2016-01-20 11:59:49

unfortunately I can not finf the possibility to PM you

iceman · 2016-01-20 12:04:16

you find my email all over this forum.

mosci · 2016-01-20 13:39:05

ok, I have used you github-email

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#1 2015-08-11 18:41:57

Simulate and Sniff Legic Prime

#2 2015-08-11 18:54:04

Re: Simulate and Sniff Legic Prime

#3 2015-08-17 00:45:03

Re: Simulate and Sniff Legic Prime

#4 2015-08-17 09:46:26

Re: Simulate and Sniff Legic Prime

#5 2016-01-20 11:42:17

Re: Simulate and Sniff Legic Prime

#6 2016-01-20 11:50:59

Re: Simulate and Sniff Legic Prime

#7 2016-01-20 11:54:16

Re: Simulate and Sniff Legic Prime

#8 2016-01-20 11:59:49

Re: Simulate and Sniff Legic Prime

#9 2016-01-20 12:04:16

Re: Simulate and Sniff Legic Prime

#10 2016-01-20 13:39:05

Re: Simulate and Sniff Legic Prime

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