Windows: How to disable initial commands when card connect?

Question

Windows: How to disable initial commands when card connect?

Closed this issue 2 years ago · 3 comments

Nick-The-Uncharted commented 2 years ago

Expected behaviour

Only reset command was sent to card.

Actual behaviour

A series of commands was sent to the virtual card. I searched project vpcd but can't found where did these commands came from.

Steps to reproduce

start vpcd
create a virtual card with VirtualICC(None, "iso7816", "localhost", 35963)
run the virtual card

Logs

14.11.2022 10:48:20  [INFO] Command APDU (16 bytes):
  0000:  00 A4 04 00 0B A0 00 00 03 97 43 49 44 5F 01 00   ................
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (5 bytes):
  0000:  00 CA 7F 68 00                                    .....
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 81                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (14 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 08 00 00 10 00         ..............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (14 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 97 42 54 46 59         ..............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (14 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 08 00 00 10 00         ..............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (7 bytes):
  0000:  00 A4 00 0C 02 3F FF                              .......
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (15 bytes):
  0000:  00 A4 04 04 09 A0 00 00 03 97 42 54 46 59 00      ...............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (15 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 97 42 54 46 59 00      ...............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (14 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 08 00 00 10 00         ..............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (7 bytes):
  0000:  00 A4 00 0C 02 3F FF                              .......
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (15 bytes):
  0000:  00 A4 04 04 09 A0 00 00 03 97 42 54 46 59 00      ...............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (15 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 97 42 54 46 59 00      ...............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (14 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 08 00 00 10 00         ..............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (7 bytes):
  0000:  00 A4 00 0C 02 3F FF                              .......
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (15 bytes):
  0000:  00 A4 04 04 09 A0 00 00 03 97 42 54 46 59 00      ...............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82                                             ..
14.11.2022 10:48:20  [INFO] Command APDU (15 bytes):
  0000:  00 A4 04 00 09 A0 00 00 03 97 42 54 46 59 00      ...............
14.11.2022 10:48:20  [INFO] Response APDU (2 bytes):
  0000:  6A 82

Answer 1 · 2022-11-14T02:55:42.000Z

And reset was sent there times:

14.11.2022 10:48:20  [INFO] Reset
14.11.2022 10:48:20  [INFO] Reset
14.11.2022 10:48:20  [INFO] Reset

Answer 2 · 2022-11-14T08:36:08.000Z

This is a Windows thing. Try this:
https://learn.microsoft.com/en-us/windows/security/identity-protection/smart-cards/smart-card-group-policy-and-registry-settings#turn-on-smart-card-plug-and-play-service

Answer 3 · 2022-11-14T09:07:16.000Z

@frankmorgner Thank you for your response, I set HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\ScPnP\EnableScPnP to 0 and rebooted, the commands received was less than before. If this is a system thing I guess will just leave that be.