Proxmark3 community

lukash

Contributor

Registered: 2011-09-16

Posts: 4

Simulation weirdness (timing?)

Hey guys, I've got a Mifare classic tag that works with an app that uses Omnikey 5021 CL reader. I got a full dump of it, loaded it into the simulator and tried to use proxmark instead of it, the second from the right red led keep blinking and it seems to be retrying indefinitely.

It seems to be stuck in a loop of:

    3432924 |    3437628 | Rdr |60  00  [5  7b  ]                                                        |  ok | AUTH-A(0)
    3437628 |    3442448 |     |fdt (Frame Delay Time): 4820
    3442448 |    3447120 | Tag |29  24  87  30                                                           |     | AUTH: nt 
    3490292 |    3499604 | Rdr |d0  89  69  d0  53  ac  48  73                                           |     | AUTH: nr ar (enc)
    4824318 |    4825310 | Rdr |52                                                                       |     | WUPA
    4825310 |    4826418 |     |fdt (Frame Delay Time): 1108

I have uploaded the traces here. IMHO it seems like a timing issue of some sort as it sometimes passes the AUTH-A(0) but it craps out right after that and back to the loop.

I did try this many times, so I do not believe this is just a fluke. Some guidance in how to try to debug this would be very appreciated.

I'm also attaching a full dump of the tag here.