我正在研究一个从智能卡读取数据和将数据写入智能卡的项目。正在使用的读卡器ACR38U-H1
来自ACS
. 按照他们的APDU
命令,我能够访问卡并读取一些数据。但是我怀疑我仍然无法读取里面的确切数据,因为我总是得到对命令的响应APDU
0x6e 0x00, 0x00
而不是0x90 0x00
.
我究竟做错了什么?
也许问题出在智能卡上?
Python代码:
#! /usr/bin/env python
from smartcard.scard import *
import smartcard.util
SELECT = [
#0xA0, 0xA4, 0x00, 0x00, 0x02, 0x3F, 0x00
0XFF, 0xA4, 0x00, 0x00, 0x01, 0x05
]
COMMAND = [
0x00, 0xC0, 0x00, 0x00, 0x00, 0x0B
]
try:
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise Exception('Failed to establish context : ' +
SCardGetErrorMessage(hresult))
print 'Context established!'
try:
hresult, readers = SCardListReaders(hcontext, [])
if hresult != SCARD_S_SUCCESS:
raise Exception('Failed to list readers: ' +
SCardGetErrorMessage(hresult))
print 'PCSC Readers:', readers
if len(readers) < 1:
raise Exception('No smart card readers')
reader = readers[0]
print "Using reader:", reader
try:
hresult, hcard, dwActiveProtocol = SCardConnect(hcontext, reader,
SCARD_SHARE_SHARED, SCARD_PROTOCOL_T1 | SCARD_PROTOCOL_T1)
if hresult != SCARD_S_SUCCESS:
raise Exception('Unable to connect: ' +
SCardGetErrorMessage(hresult))
print 'Connected with active protocol', dwActiveProtocol
try:
hresult, response = SCardTransmit(hcard, dwActiveProtocol,
SELECT)
if hresult != SCARD_S_SUCCESS:
raise Exception('Failed to transmit: ' +
SCardGetErrorMessage(hresult))
print 'Select: ' + smartcard.util.toHexString(response,
smartcard.util.HEX)
#==========================================================================
hresult, response = SCardTransmit(hcard, dwActiveProtocol,
COMMAND)
if hresult != SCARD_S_SUCCESS:
raise Exception('Failed to transmit: ' +
SCardGetErrorMessage(hresult))
print 'Command: ' + smartcard.util.toHexString(response,
smartcard.util.HEX)
# =========================================================================
finally:
hresult = SCardDisconnect(hcard, SCARD_UNPOWER_CARD)
if hresult != SCARD_S_SUCCESS:
raise Exception('Failed to disconnect: ' +
SCardGetErrorMessage(hresult))
print 'Disconnected'
except Exception, message:
print "Exception:", message
finally:
hresult = SCardReleaseContext(hcontext)
if hresult != SCARD_S_SUCCESS:
raise Exception('Failed to release context: ' +
SCardGetErrorMessage(hresult))
print 'Released context.'
except Exception, message:
print "Exception:", message
此代码的结果:
Context established!
PCSC Readers: ['ACS ACR38U-CCID 00 00']
Using reader: ACS ACR38U-CCID 00 00
Connected with active protocol 2
Select: 0x6E 0x00
Command: 0x67 0x00
Disconnected
Released context.
打开工具的结果:
[17:06:00]:~$ opensc-tool -s ff:a4:00:00:01:05
Using reader with a card: ACS ACR38U-CCID 00 00
Sending: FF A4 00 00 01 05
Received (SW1=0x6E, SW2=0x00)