def main():
data = Data()
data.wireDecode(TlvData)
# Use a hard-wired secret for testing. In a real application the signer
# ensures that the verifier knows the shared key and its keyName.
key = Blob(bytearray([
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
]))
if KeyChain.verifyDataWithHmacWithSha256(data, key):
dump("Hard-coded data signature verification: VERIFIED")
else:
dump("Hard-coded data signature verification: FAILED")
freshData = Data(Name("/ndn/abc"))
signature = HmacWithSha256Signature()
signature.getKeyLocator().setType(KeyLocatorType.KEYNAME)
signature.getKeyLocator().setKeyName(Name("key1"))
freshData.setSignature(signature)
freshData.setContent("SUCCESS!")
dump("Signing fresh data packet", freshData.getName().toUri())
KeyChain.signWithHmacWithSha256(freshData, key)
if KeyChain.verifyDataWithHmacWithSha256(freshData, key):
dump("Freshly-signed data signature verification: VERIFIED")
else:
dump("Freshly-signed data signature verification: FAILED")
def main():
data = Data()
data.wireDecode(TlvData)
# Use a hard-wired secret for testing. In a real application the signer
# ensures that the verifier knows the shared key and its keyName.
key = Blob(
bytearray([
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
]))
if KeyChain.verifyDataWithHmacWithSha256(data, key):
dump("Hard-coded data signature verification: VERIFIED")
else:
dump("Hard-coded data signature verification: FAILED")
freshData = Data(Name("/ndn/abc"))
signature = HmacWithSha256Signature()
signature.getKeyLocator().setType(KeyLocatorType.KEYNAME)
signature.getKeyLocator().setKeyName(Name("key1"))
freshData.setSignature(signature)
freshData.setContent("SUCCESS!")
dump("Signing fresh data packet", freshData.getName().toUri())
KeyChain.signWithHmacWithSha256(freshData, key)
if KeyChain.verifyDataWithHmacWithSha256(freshData, key):
dump("Freshly-signed data signature verification: VERIFIED")
else:
dump("Freshly-signed data signature verification: FAILED")
def onData(self, interest, data):
self._file.write('\t'+str(datetime.now().strftime('%X.%f')))
self._file.write('\t'+str(len(data.wireEncode())))
self._file.write('\t'+str(len(data.getContent())))
self._file.write('\t'+str(1))
print("Received Data: ")
print(data.getName().toUri())
print(data.getContent())
if KeyChain.verifyDataWithHmacWithSha256(data, key):
dump("Signature verification: VERIFIED")
else:
dump("Signature verification: FAILED")
self._callbackCount += 1
def scanForNistSensors():
scanner = Scanner().withDelegate(ScanDelegate())
scanner.scan(.1)
if foundNistSensor == 0:
print "Didn't find any nist sensors..."
return False
p = Peripheral(esp32Address)
p.setMTU(500)
#svcList = p.getServices()
#print "Handle UUID Properties"
#print "-------------------------------------------------------"
#for svc in svcList:
# print (str(svc.uuid))
#chList = p.getCharacteristics()
#print "Handle UUID Properties"
#print "-------------------------------------------------------"
#for ch in chList:
# print (" 0x"+ format(ch.getHandle(),'02X') +" "+str(ch.uuid) +" " + ch.propertiesToString())
nist_service_uuid = UUID("0000ffe0-0000-1000-8000-00805f9b34fb")
nist_characteristic_uuid = UUID("beb5483e-36e1-4688-b7f5-ea07361b26a8")
nistService = p.getServiceByUUID(nist_service_uuid)
#nistCharacteristic = p.getCharacteristics(nist_characteristic_uuid)[0]
nistCharacteristic = nistService.getCharacteristics("beb5483e-36e1-4688-b7f5-ea07361b26a8")[0]
#readBytes = bytes(p.readCharacteristic(0x2A))
#readBytes = bytes(nistCharacteristic.read())
#print binascii.hexlify(readBytes)
#with open('/home/pi/Desktop/esp32-ndn-ble/src/readBytes.txt', 'a') as the_file:
# the_file.seek(0)
# the_file.truncate()
# the_file.write(binascii.hexlify(readBytes))
#TlvData = Blob(readBytes)
#data = Data()
#data.wireDecode(TlvData)
# Use a hard-wired secret for testing. In a real application the signer
# ensures that the verifier knows the shared key and its keyName.
key = Blob(bytearray([
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
]))
#if KeyChain.verifyDataWithHmacWithSha256(data, key):
# dump("Hard-coded data signature verification: VERIFIED")
#else:
# dump("Hard-coded data signature verification: FAILED")
freshData = Data(Name("/netInfo"))
signature = HmacWithSha256Signature()
signature.getKeyLocator().setType(KeyLocatorType.KEYNAME)
signature.getKeyLocator().setKeyName(Name("key1"))
freshData.setSignature(signature)
freshData.setContent("EdwardPi\n11111111\n192.168.4.1\n")
dump("Signing fresh data packet", freshData.getName().toUri())
KeyChain.signWithHmacWithSha256(freshData, key)
if KeyChain.verifyDataWithHmacWithSha256(freshData, key):
dump("Freshly-signed data signature verification: VERIFIED")
else:
dump("Freshly-signed data signature verification: FAILED")
bytesSend = freshData.wireEncode()
print binascii.hexlify(bytes(bytesSend))
try:
nistCharacteristic.write(bytes(bytesSend), True)
except:
print "Exception when trying to write to BLE characteristic."