extension attack structure
This commit is contained in:
parent
b21c16b948
commit
4a33103c40
|
@ -134,6 +134,8 @@ def main():
|
|||
help='perform tests')
|
||||
parser.add_argument('-v', '--verbose', action="store_true",
|
||||
help='print many things')
|
||||
parser.add_argument('-e', '--extension-attack', type=str,
|
||||
help='perform an extension attack, this option requires known mics in the form: "deadbeed,abababab,ecbadf,..."')
|
||||
parser.add_argument('-a', '--auth', action="store_true",
|
||||
help='generate a message integrity code (mic), needs a value to be hashed. If no key is specified, a random key will be generated.')
|
||||
args = parser.parse_args()
|
||||
|
@ -149,7 +151,7 @@ def main():
|
|||
key.extend(random.randbytes(16 - len(key)))
|
||||
elif len(key) > 16:
|
||||
print("Your key is too long!")
|
||||
exit()
|
||||
exit(1)
|
||||
else:
|
||||
key: bytearray = bytearray(random.randbytes(16))
|
||||
my_bytes: bytearray = bytearray(str.encode(args.hash))
|
||||
|
@ -162,6 +164,24 @@ def main():
|
|||
my_bytes: bytearray = bytearray(str.encode(args.hash))
|
||||
hashed: bytearray = authur1(my_bytes, args.verbose)
|
||||
print("hash for \"%s\" is:\n%s" % (args.hash, hashed.hex()))
|
||||
exit()
|
||||
elif args.extension_attack:
|
||||
# TODO
|
||||
hex_strs: list = args.extension_attack.split(",")
|
||||
mics: list = [] # will store our processed given hashes
|
||||
for mic in hex_strs:
|
||||
try:
|
||||
assert (len(mic) == 8), "given hash '%s' formatted incorrectly" % mic
|
||||
mic_int: int = int(mic, 16)
|
||||
mics.append(bytearray(mic_int.to_bytes(4)))
|
||||
except Exception:
|
||||
print("given hash '%s' formatted incorrectly" % mic)
|
||||
exit(1)
|
||||
|
||||
# now attack authur1 with the given mics
|
||||
# TODO extension attack
|
||||
print("extension attack is still TODO")
|
||||
|
||||
exit()
|
||||
parser.print_help()
|
||||
|
||||
|
|
Loading…
Reference in New Issue