Update SIMrw.py

Added PIN-control

SIMrw.py

@@ -11,7 +11,7 @@
 from smartcard.Exceptions import NoReadersException, CardConnectionException
 
 # Version information
-version = "0.2.1"
+version = "0.2.2"
 
 # from https://patorjk.com/software/taag/#p=display&f=Ivrit&t=SIMrw
 ascii_logo = """
@@ -88,22 +88,40 @@ def usim(reader_nb, pin=None):
 
  size = data[-1]
 
- if pin is not None:
- try:
- # Convert PIN to string of ASCII values
- pin_str = str(pin)
- pin_ascii = [ord(c) for c in pin_str]
- # Pad PIN to 8 bytes if it's less than 8 bytes
- pin_padded = padd(pin_ascii, 8)
- # Verify CHV
- VERIFY = "A0 20 00 01 08"
- cmd = toBytes(VERIFY) + pin_padded
+# if pin is not None:
+ try:
+ # Convert PIN to string of ASCII values
+ pin_str = str(pin)
+ pin_ascii = [ord(c) for c in pin_str]
+ # Pad PIN to 8 bytes if it's less than 8 bytes
+ pin_padded = padd(pin_ascii, 8)
+ # Verify CHV
+ PIN_VERIFY = "A0 20 00 01 08"
+ cmd = toBytes(PIN_VERIFY) + pin_padded
+ data, sw1, sw2 = connection.transmit(cmd)
+
+ if (sw1, sw2) == (0x90, 0x00):
+ pass
+ elif (sw1, sw2) == (0x98, 0x08):
+ print("\n NOTE: PIN was provided, but deactivated on SIM-Card. Continuing.\n\n")
+ elif (sw1, sw2) == (0x98, 0x40):
+ print("\n ERROR: PIN1 is LOCKED! Please unlock first.\n")
+ sys.exit(1)
+ elif (sw1, sw2) == (0x98, 0x04):
+ print("\n ATTENTION: Wrong or missing PIN!!!")
+ PIN_CHECK_REMAINING = "00 20 00 01 00"
+ cmd = toBytes(PIN_CHECK_REMAINING)
  data, sw1, sw2 = connection.transmit(cmd)
- if (sw1, sw2) != (0x90, 0x00):
- raise Exception(f"Wrong PIN!!!\n\nCAUTION: There is no counter programmed!!! You have only 3 tries at all! How many are still left? ;)\n")
- except Exception as e:
- print(f"ERROR: {e}")
+ if sw2 == 0xC0:
+ print("\n ERROR: PIN1 is LOCKED. Please unlock first.\n")
+  else:
+  print(f"\n -> {sw2 & 0x0F} attempt(s) left!\n\n")
  sys.exit(1)
+ else:
+ raise Exception(f"Unexpected response: sw1={sw1}, sw2={sw2}")
+ except Exception as e:
+ print(f"ERROR: {e}")
+ sys.exit(1)
 
  return size, connection
 
@@ -254,7 +272,7 @@ def usim_write(reader_nb, records, pin):
  group.add_argument('-r', '--read', action='store_true', help='Read phonebook from the USIM card and save as CSV')
  group.add_argument('-w', '--write', action='store_true', help='Write CSV phonebook to the USIM card')
  parser.add_argument('-v', '--verbose', action='store_true', help='Show names & numbers during reading/writing')
- parser.add_argument('-p', '--pin', type=int, help='PIN for the USIM card (default: None if omitted. CAUTION: There is no fail counter yet!)', default=None)
+ parser.add_argument('-p', '--pin', type=int, help='PIN for the USIM card (default: None if omitted)', default=None)
  parser.add_argument('csv_file', help='CSV file name for reading or writing')
  parser.add_argument('reader_nb', type=int, nargs='?', default=0, help='Reader number (default: 0 if omitted)')