def get_data(self, msb_tag, lsb_tag):
""" Returns the command/response pair for the GET DATA command. The
msb_tag and lsb_tag represent the most significant and least
significant part of the tag byte respectively."""
# GET DATA command encoding.
# Same problem as in READ RECORD. See read_record() for more details.
tmp = CommandAPDU(0x80, 0xca, msb_tag, lsb_tag).getBytes()
tmp.append(0)
command = CommandAPDU(tmp)
return self.send_command(command)
def get_data(self, msb_tag, lsb_tag):
""" Returns the command/response pair for the GET DATA command. The
msb_tag and lsb_tag represent the most significant and least
significant part of the tag byte respectively."""
# GET DATA command encoding.
# Same problem as in READ RECORD. See read_record() for more details.
tmp = CommandAPDU(0x80, 0xca, msb_tag, lsb_tag).getBytes()
tmp.append(0)
command = CommandAPDU(tmp)
return self.send_command(command)
def select(self, aid):
""" Returns the command/response pair for the SELECT command.
Parameter aid is a byte string representing the aid to select."""
aid = util.str2ba(aid)
# SELECT command encoding.
command = CommandAPDU(0x00, 0xa4, 0x04, 0x00, aid)
return self.send_command(command)
def read_record(self, sfi, rnbr):
# read record command encoding.
# command = CommandAPDU(0x00, 0x82, rnbr, (sfi << 3 | 4))
# TODO: for some reason, the commented command above DOES NOT WORK.
# you need to manually add the Le parameter of the read_record command
# Le. This should be investigated further but in the meantime,
# let's use a work around and add it ourself manually.
# Does this only happen when there is no command body? read further
# about it in EMV book 3 v4.3
tmp = CommandAPDU(0x00, 0xb2, rnbr, (sfi << 3 | 4)).getBytes()
tmp.append(0)
command = CommandAPDU(tmp)
return self.send_command(command)
def read_record(self, sfi, rnbr):
# read record command encoding.
# command = CommandAPDU(0x00, 0x82, rnbr, (sfi << 3 | 4))
# TODO: for some reason, the commented command above DOES NOT WORK.
# you need to manually add the Le parameter of the read_record command
# Le. This should be investigated further but in the meantime,
# let's use a work around and add it ourself manually.
# Does this only happen when there is no command body? read further
# about it in EMV book 3 v4.3
tmp = CommandAPDU(0x00, 0xb2, rnbr, (sfi << 3 | 4)).getBytes()
tmp.append(0)
command = CommandAPDU(tmp)
return self.send_command(command)
def internal_authenticate(self, auth_data):
""" Return the command/response pair for the INTERNAL AUTHENTICATE
command. The parameter auth_data shall be encoded according to the DDOL.
"""
#TODO: test card does not support DDA. Find a test card that does and
# test this function.
command = CommandAPDU(0x00, 0x88, 0x00, 0x00, auth_data)
return self.send_command(command)
def get_processing_options(self, pdol='\x83\00'):
""" Returns the command/response pair for the GET PROCESSING OPTIONS
command. If the pdol parameter is not specified, the default pdol value
of 0x8300 is used."""
# GET PROCESSING OPTIONS encoding
command = CommandAPDU(0x80, 0xa8, 0x00, 0x00, pdol)
return self.send_command(command)
def get_challenge(self):
"""returns the command/response pair for the GET CHALLENGE command."""
# This Java package is either cursed or I do not get it.
# the command below will not work. Issuing the command by "hand"
# as a work around until further investigation. This is similar
# to the read_record, and get_data problem.
# command = CommandAPDU(0x00, 0x84, 0x00, 0x00)
command = CommandAPDU('\x00\x84\x00\x00\x00')
return self.send_command(command)
