CkPython

PC/SC Get Card UID

See more SCard Examples

Sends the APDU command to get a card's UID. CkPython

import sys
import chilkat

success = False

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

scard = chilkat.CkSCard()

# First establish a context to the PC/SC Resource Manager
success = scard.EstablishContext("user")
if (success == False):
    print(scard.lastErrorText())
    sys.exit()

# Use your own smart card reader name here.
success = scard.Connect("ACS ACR122 0","shared","no_preference")
if (success == False):
    print(scard.lastErrorText())
    sys.exit()

print("Connected reader: " + scard.connectedReader())
print("Active protocol: " + scard.activeProtocol())
print("ATR: " + scard.cardAtr())
print("Reader Status: " + scard.readerStatus())

#  Send the APDU command 0xFF, 0xCA, 0x00, 0x00, 0x00
bdRecv = chilkat.CkBinData()
success = scard.TransmitHex(scard.activeProtocol(),"FFCA000000",bdRecv,32)
if (success == True):

    print("Received: " + bdRecv.getEncoded("hex"))

    # The UID is the returned data without the final 2 bytes.
    numBytes = bdRecv.get_NumBytes()
    if (numBytes > 2):
        print("UID: " + bdRecv.getEncodedChunk(0,numBytes - 2,"hex"))

else:
    print(scard.lastErrorText())

# Disconnect from this reader.
success = scard.Disconnect("leave")
if (success == False):
    print(scard.lastErrorText())

# Applications should always release the context when finished.
success = scard.ReleaseContext()
if (success == False):
    print(scard.lastErrorText())