Can not select Master File to read EF.CardAccess (for PACE) with Vietnam ID card (error: 6D 00)

[longcon9999]

I always got error 6D 00 (Instruction code not supported or invalid) when select master file, so I can not using PACE. Please help me, @AndyQ. Thank you

[AndyQ]

Can you please supply a log? And are you sure your passport supports PACE?

[daniel-e-gonzalez]

Hey @AndyQ . this issue is a little bit different than the exact error messages i've seen in other open/closed issues, but i wanted to let you know i found something interesting with master file selection for PACE (that might also fix this one).

see
#156
#164
#116

there might be more too, but i think this is a good sampling.

what i found was that if i use 0x02 for the p1 parameter in readCardAccess in TagReader, the card access is able to be selected. i am not nearly as well versed in this as you are, so my terminology might be a bit wrong, but i think for some nfc chips the card access file might actually live in the applet rather than in the master file. i think by sending 0x02, we are just going and selecting the EF file directly. see 3.6.2 EF Selection Using the SELECT Command in ICAO 9303.

I have a Latvian ID that was giving the exact same error as in #116, and when I made this change it fixed PACE. It also seems like using it as a fallback does work (important since most documents will still require the original 0x00 p1 param), at least for the Latvian ID. it doesn't make me rescan or anything when I try a different p1 param.

[longcon9999]

Can you please supply a log? And are you sure your passport supports PACE?

Here is log:
2024-05-09 5:15:21.6550 PM - tagReaderSession:didDetect - iso7816(<NFCISO7816Tag: 0x2836f8a80>)
2024-05-09 5:15:21.6550 PM - tagReaderSession:connected to tag - starting authentication
2024-05-09 17:15:21.655426+0700 NFCReaderSwift[60133:1676843] [CoreNFC] 00000002 80a90b40 -[NFCTagReaderSession setAlertMessage:]:93 (null)
2024-05-09 5:15:21.6560 PM - TagReader - sending [0x00, 0xA4, 0x00, 0x0C, 0x02, 0x3F, 0x00]
2024-05-09 5:15:21.6630 PM - TagReader - Received response size 0b
2024-05-09 5:15:21.6630 PM - TagReader [unprotected] [], sw1:0x6d sw2:0x00
2024-05-09 5:15:21.6640 PM - TagReader - sending [0x00, 0xA4, 0x02, 0x0C, 0x02, 0x01, 0x1C]
2024-05-09 5:15:21.6690 PM - TagReader - Received response size 0b
2024-05-09 5:15:21.6690 PM - TagReader [unprotected] [], sw1:0x69 sw2:0x82
2024-05-09 5:15:21.6690 PM - PACE Failed - falling back to BAC

I received [0x6d sw2:0x00](sw1:0x6d sw2:0x00) when call tagReader.readCardAccess()
sending [0x00, 0xA4, 0x00, 0x0C, 0x02, 0x3F, 0x00] is select master file, because of select master file 6d 00 (Instruction code not supported or invalid), when code read EC.CardAccess got error sw1:0x69 sw2:0x82 (Security status not satisfied)

when I comment select master file and I read only EF.CardAccess, I mean selecting the EF file directly, I got error Authentication method blocked @daniel-e-gonzalez ;((

Please help me, I really need using PACE.
My ID card can PACE using jmrtd of android so I think my card is supports

[daniel-e-gonzalez]

@longcon9999 it isn't commenting out the first select entirely that fixed the "Incorrect P1-P2 parameters" error, it was just changing the P1 parameter from 0x00 to 0x02 i.e.

let cmd = NFCISO7816APDU(instructionClass: 0x00, instructionCode: 0xA4, p1Parameter: 0x02, p2Parameter: 0x0C, data: Data([0x3f, 0x00]), expectedResponseLength: -1).

i don't know for sure if it would work for your case since your error is different, but if you are trying things then I figured it would be worth a shot to make sure you are trying the fix correctly. like i said though, i only am sure that this fixes the "Incorrect P1-P2 parameters" specifically during the readCardAccess function.

[longcon9999]

let cmd = NFCISO7816APDU(instructionClass: 0x00, instructionCode: 0xA4, p1Parameter: 0x02, p2Parameter: 0x0C, data: Data([0x3f, 0x00]), expectedResponseLength: -1).
I got Authentication method blocked when send this cmd.

I tried send this cmd but it did not work, still got Instruction code not supported or invalid . Please let me know some solutions, @AndyQ thank you

[yen-dang-ts]

I got same issue