11 Jul
2024
11 Jul
'24
2:36 p.m.
Hi Team,
I dig it further for more information and the reason I can understand may
be that post getting SW as 6e00 it runs the classical SIM procedure since
its a USIM hence the further procedure gets failed .
I captured the packets between the SIM and card reader by SIMTRACE, In
successful case it show the packets but in unsuccessful case it shows as
packet malformed ,
Packets captured which successful SIM card.
[image: Screenshot from 2024-07-11 18-03-00.png]
I am attaching the output of the "tree" command from both the SIM cards ,
Which I login via the pySim-shell.py program .
Could it be a case that APDU response from problematic SIM cards is
protected ?
On Wed, Jul 10, 2024 at 2:58 PM Neeraj Chaudhary <chaudhary.neer(a)gmail.com>
wrote:
Hi Team,
I am getting the following error while running the pySim-read.py , This
program runs fine on old SIM cards but in new SIM cards it gives the below
error.
I did a comparison of directories on both the SIM cards and there is a
difference, Kindly guide how to fix it . Although EF.ICCID exists in both
the SIM cards .
Additionally pySim-shell.py works well .
python3 pySim-read.py -p 1
Using reader PCSC[HID Global OMNIKEY 3x21 Smart Card Reader [OMNIKEY 3x21
Smart Card Reader] 01 00]
Reading ...
Autodetection failed
Traceback (most recent call last):
File "/home/lab3/pysim/pySim-read.py", line 105, in <module>
(res, sw) = card.read_iccid()
File "/home/lab3/pysim/pySim/legacy/cards.py", line 62, in read_iccid
(res, sw) = self._scc.read_binary(EF['ICCID'])
File "/home/lab3/pysim/pySim/commands.py", line 320, in read_binary
r = self.select_path(ef)
File "/home/lab3/pysim/pySim/commands.py", line 285, in select_path
data, _sw = self.select_file(i)
File "/home/lab3/pysim/pySim/commands.py", line 296, in select_file
return self.send_apdu_checksw(self.cla_byte + "a4" + self.sel_ctrl +
"02" + fid)
File "/home/lab3/pysim/pySim/commands.py", line 143, in send_apdu_checksw
return self._tp.send_apdu_checksw(pdu, sw)
File "/home/lab3/pysim/pySim/transport/__init__.py", line 218, in
send_apdu_checksw
raise SwMatchError(rv[1], sw.lower(), self.sw_interpreter)
pySim.exceptions.SwMatchError: SW match failed! Expected 9000 and got 6e00.
BR//
Niraj Kumar
