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#1 2018-05-05 20:03:18

m4tt3
Contributor
Registered: 2018-05-04
Posts: 2

Strange behaviour of pm3 with 14443 type b cards

Hello, i am playing with a european social security card which I did not know being wireless (it has smart card contacts) and since i found out that hw tune was reporting some voltage dip, i tried hw search and with big surprise I got this report:

proxmark3> hf search

14443-3b tag found:
           UID: 9d 97 df 88
      App Data: 00 00 00 00
      Protocol: f7 81 c1
      Bit Rate: 212 kbit/s PICC -> PCD supported
      Bit Rate: 424 kbit/s PICC -> PCD supported
      Bit Rate: 847 kbit/s PICC -> PCD supported
      Bit Rate: 212 kbit/s PICC <- PCD supported
      Bit Rate: 424 kbit/s PICC <- PCD supported
      Bit Rate: 847 kbit/s PICC <- PCD supported
                Same bit rate <-> required
Max Frame Size: 256
Protocol Type: Protocol is compliant with ISO/IEC 14443-4
Frame Wait Int: 12
App Data Code: Application is Proprietary
Frame Options: NAD is not supported
Frame Options: CID is supported
Max Buf Length: 0 (MBLI) not supported

Valid ISO14443B Tag Found - Quiting Search


Strangely enough, any attempt to gather more information from any type b related commands fails, for example "hf 14b info" does not report any card at all.
Any hint?

thanks in advance
m

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