从Python中的RFID卡读取唯一的ID

Question

我有一个Omnike5321智能卡读卡器，和一台带Debian的电脑。下面的Python代码读取卡片：

from smartcard.CardMonitoring import CardMonitor, CardObserver
from smartcard.util import *
import sys

class printobserver( CardObserver ):
    def update( self, observable, (addedcards, removedcards) ):
        for card in addedcards:
            print "+Inserted: ", toHexString( card.atr )
        for card in removedcards:
            print "-Removed:  ", toHexString( card.atr )

try:
    print "Insert or remove a smartcard in the system."
    print ""
    cardmonitor = CardMonitor()
    cardobserver = printobserver()
    cardmonitor.addObserver( cardobserver )
    raw_input('Press Enter to exit\n')
except:
    print "Unexpected error: ", sys.exc_info()[0]

Python代码运行得很好，但是对于许多卡，它返回了相同的atr标记。给定的atr为：

3B 8F 80 01 80 4F 0C A0 00 00 03 06 03 00 01 00 00 00 00 6A

我怎么能从卡片上读到唯一的东西？我知道我必须发送一些命令，并且回复将包含UID，但是如何才能找到这些命令？我要怎么送呢？在

谢谢！在

Answer 1

连接到卡（或实际上是读卡器）后，可以发送PC/SC标准化命令，从读卡器获取卡UID：

FF CA 00 00 00