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https://github.com/polhenarejos/pico-openpgp.git
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2c24c348b5
All tests are taken from gnuk. Reader is migrated from pyusb to pyscard. Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
"""
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card_reader.py - a library for smartcard reader
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Copyright (C) 2016, 2017, 2019 Free Software Initiative of Japan
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Author: NIIBE Yutaka <gniibe@fsij.org>
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This file is a part of Gnuk, a GnuPG USB Token implementation.
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Gnuk is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gnuk is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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from struct import pack
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from binascii import hexlify
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import sys
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try:
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from smartcard.CardType import AnyCardType
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from smartcard.CardRequest import CardRequest
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from smartcard.Exceptions import CardRequestTimeoutException, CardConnectionException
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except ModuleNotFoundError:
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print('ERROR: smarctard module not found! Install pyscard package.\nTry with `pip install pyscard`')
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sys.exit(-1)
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class CardReader(object):
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def __init__(self):
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"""
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__init__() -> None
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Initialize the reader
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device: usb.core.Device object.
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"""
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cardtype = AnyCardType()
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try:
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# request card insertion
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cardrequest = CardRequest(timeout=10, cardType=cardtype)
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self.__card = cardrequest.waitforcard()
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# connect to the card and perform a few transmits
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self.__card.connection.connect()
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except CardRequestTimeoutException:
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raise Exception('time-out: no card inserted during last 10s')
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def reset_device(self):
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self.__card.connection.reconnect()
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def send_cmd(self, cmd):
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response, sw1, sw2 = self.__card.connection.transmit(list(bytearray(cmd)))
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return bytes(response + [sw1,sw2])
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def ccid_power_off(self):
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self.__card.connection.disconnect()
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def get_ccid_device():
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return CardReader()
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