82 lines
1.8 KiB
Python
82 lines
1.8 KiB
Python
#!/usr/bin/env python
|
|
from __future__ import print_function
|
|
import RPi.GPIO as GPIO
|
|
import MFRC522
|
|
|
|
# Keys
|
|
DEFAULT_KEY = [0xFF,0xFF,0xFF,0xFF,0xFF,0xFF]
|
|
|
|
# Selecting key
|
|
KEY = DEFAULT_KEY
|
|
|
|
RFID = MFRC522.MFRC522()
|
|
|
|
print("# RFID Wipe\n")
|
|
|
|
print("Waiting for tag...\n")
|
|
|
|
while True:
|
|
|
|
Sector = 1
|
|
|
|
while True:
|
|
|
|
(Status, TagSize) = RFID.Request(RFID.PICC_REQIDL)
|
|
|
|
if Status != RFID.MI_OK:
|
|
continue
|
|
|
|
if TagSize < 1:
|
|
print("Can't read tag properly!")
|
|
break
|
|
|
|
if Sector >= TagSize:
|
|
break
|
|
|
|
# Only for formatting
|
|
Spacer = ""
|
|
if Sector < 10:
|
|
Spacer = " "
|
|
|
|
print("Wiping sector %s%s ... " % (Spacer, Sector), end="")
|
|
|
|
# Selecting blocks
|
|
BaseBlockLength = 4
|
|
if Sector < 32:
|
|
BlockLength = BaseBlockLength
|
|
StartAddr = Sector * BlockLength
|
|
else:
|
|
BlockLength = 16
|
|
StartAddr = 32 * BaseBlockLength + (Sector - 32) * BlockLength
|
|
|
|
BlockAddrs = []
|
|
for i in range(0, (BlockLength - 1)):
|
|
BlockAddrs.append((StartAddr + i))
|
|
TrailerBlockAddr = (StartAddr + (BlockLength - 1))
|
|
|
|
# Initializing tag
|
|
(Status, UID) = RFID.Anticoll()
|
|
|
|
if Status != RFID.MI_OK:
|
|
break
|
|
|
|
# Wiping sector
|
|
RFID.SelectTag(UID)
|
|
Status = RFID.Auth(RFID.PICC_AUTHENT1A, TrailerBlockAddr, KEY, UID)
|
|
if Status == RFID.MI_OK:
|
|
data = bytearray()
|
|
data.extend(bytearray("".ljust(len(BlockAddrs) * 16)))
|
|
i = 0
|
|
for block_num in BlockAddrs:
|
|
RFID.Write(block_num, data[(i*16):(i+1)*16])
|
|
i += 1
|
|
print("OK!")
|
|
else:
|
|
print("NO ACCESS!")
|
|
RFID.StopCrypto1()
|
|
Sector += 1
|
|
|
|
print("\nTag wiped!")
|
|
break
|
|
|
|
GPIO.cleanup() |