def setKseed(self, dg1):
l2 = dg1["5F1F"][44:]
b = bac.BAC(None)
m = mrz.MRZ(l2)
m.checkMRZ()
kseed = binToHexRep(b.mrz_information(m))
toSend = CommandAPDU("10", "A7", "00", "00", "18", kseed, "")
self._iso7816.transmit(toSend, "Set KSeed")
self.log("Kseed set")
def protect(self, apdu):
"""
Protect the apdu following the doc9303 specification
"""
cmdHeader = self._maskClassAndPad(apdu)
do87 = b""
do97 = b""
tmp = "Concatenate CmdHeader"
if (apdu.getData()):
tmp += " and DO87"
do87 = self._buildD087(apdu)
if (apdu.getLe()):
tmp += " and DO97"
do97 = self._buildD097(apdu)
M = cmdHeader + do87 + do97
self.log(tmp)
self.log("\tM: " + binToHexRep(M))
self._ssc = self._incSSC()
self.log("Compute MAC of M")
self.log("\tIncrement SSC with 1")
self.log("\t\tSSC: " + binToHexRep(self._ssc))
N = pad(self._ssc + M)
self.log("\tConcateate SSC and M and add padding")
self.log("\t\tN: " + binToHexRep(N))
CC = mac(self._ksmac, N)
self.log("\tCompute MAC over N with KSmac")
self.log("\t\tCC: " + binToHexRep(CC))
do8e = self._buildD08E(CC)
size = str(len(do87) + len(do97) + len(do8e))
protectedAPDU = cmdHeader[:4] + intToBin(
size) + do87 + do97 + do8e + hexToBin(0x00)
self.log("Construct and send protected APDU")
self.log("\tProtectedAPDU: " + binToHexRep(protectedAPDU))
return CommandAPDU(binToHexRep(protectedAPDU[0]),
binToHexRep(protectedAPDU[1]),
binToHexRep(protectedAPDU[2]),
binToHexRep(protectedAPDU[3]),
binToHexRep(protectedAPDU[4]),
binToHexRep(protectedAPDU[5:-1]),
binToHexRep(protectedAPDU[-1]))
def _autoDetect(self):
"""
Pool every connected reader with every driver available by the factory.
When a couple (driver, num reader) can select the AID, we have a good reader!
Return a couple (reader object, reader number, reader name)
"""
for driver in ReaderManager.readers:
r = self.create(driver)
for numR in range(len(self.getReaderList())):
try:
if r.connect(numR):
res = r.transmit(CommandAPDU("00", "A4", "04", "0C", "07", "A0000002471001"))
if res.sw1 == 0x90 and res.sw2 == 0x00:
return r
except ReaderException as msg:
r.disconnect()
return None