for i in range(3):
# Warning : afin de tester, message non divisible par 3 peut avoir des pertes d'informations
fragmentSize = int(len(message) / 3)
# Découpe le message en fragments
fragmentMessage = message[fragmentSize * i:fragmentSize * (i + 1)]
# Calcul de l'ICV du fragment actuel
icv = zlib.crc32(fragmentMessage).to_bytes(4, byteorder='little')
# On chiffre le fragment + icv.
seed = iv + key
cipher = RC4(seed, streaming=False)
encrypted_message = cipher.crypt(fragmentMessage + icv)
# On crée un nouveau packet avec les bonnes valeurs.
wepdata = encrypted_message[:-4]
encrypted_icv = int.from_bytes(encrypted_message[-4:], byteorder='big')
# Si ce n'est pas le dernier fragment (!= 2) l'on rajout MF (More Fragments) à notre frame Dot11
if i != 2:
pck = RadioTap() / Dot11(type='Data',
FCfield='to-DS+protected+MF') / Dot11WEP(
iv=iv, wepdata=wepdata, icv=encrypted_icv)
else:
pck = RadioTap() / Dot11(type='Data',
FCfield='to-DS+protected') / Dot11WEP(
iv=iv, wepdata=wepdata, icv=encrypted_icv)
pck.SC = i
# On ajoute le fragment dans une capture pcap.
wrpcap('ex3.cap', pck, append=True)
print(pck.show())
def send_beacon(iface, ssid, mac_address, count, list_path):
if count is None:
count = 1
if ssid is None:
ssid = random_mac()
if mac_address is None:
mac_address = random_mac()
if list_path is not None:
file = open(list_path)
data = json.load(file)
for single_count in range(0, count):
for single_data in data:
dot11 = Dot11(type=0, subtype=8, addr1='ff:ff:ff:ff:ff:ff', addr2='22:22:22:22:22:22',
addr3=single_data['mac'])
beacon = Dot11Beacon(cap='ESS+privacy')
essid = Dot11Elt(ID='SSID', info=single_data['ssid'], len=len(single_data['ssid']))
rsn = Dot11Elt(ID='RSNinfo', info=(
'\x01\x00'
'\x00\x0f\xac\x02'
'\x02\x00'
'\x00\x0f\xac\x04'
'\x00\x0f\xac\x02'
'\x01\x00'
'\x00\x0f\xac\x02'
'\x00\x00'))
frame = RadioTap() / dot11 / beacon / essid / rsn
frame.show()
sendp(frame, iface=iface, count=1)
if list_path is None:
dot11 = Dot11(type=0, subtype=8, addr1='ff:ff:ff:ff:ff:ff', addr2='22:22:22:22:22:22', addr3=mac_address)
beacon = Dot11Beacon(cap='ESS+privacy')
essid = Dot11Elt(ID='SSID', info=ssid, len=len(ssid))
rsn = Dot11Elt(ID='RSNinfo', info=(
'\x01\x00'
'\x00\x0f\xac\x02'
'\x02\x00'
'\x00\x0f\xac\x04'
'\x00\x0f\xac\x02'
'\x01\x00'
'\x00\x0f\xac\x02'
'\x00\x00'))
frame = RadioTap() / dot11 / beacon / essid / rsn
frame.show()
sendp(frame, iface=iface, count=count)
