66 lines
2.6 KiB
Plaintext
66 lines
2.6 KiB
Plaintext
|
|
|
|
+--------------------------------+
|
|
| HOW TO OPEN A PERMUTATION LOCK |
|
|
+--------------------------------+
|
|
by unlock - 2009
|
|
|
|
|
|
|
|
This file here explains to you how you can open a permutation lock without
|
|
knowing the right numbers code. This file is just written to show you the
|
|
insecurity of this kind of lock. Which means you shouldnt buy such a lock
|
|
because it is very insecure and every person with this knowledge can open
|
|
it. With this technique you can open the lock without destroying it and
|
|
without doing any harm to it.
|
|
|
|
|
|
example ASCII picture of a permutation lock:
|
|
|
|
|
|
.___. .___. .___.
|
|
.----| |--| |--| |----.
|
|
| [ 3 ] [ 6 ] [ 1 ] |
|
|
|------------| b | | | | | --- c |-..----------|
|
|
| a | [_4_] [_7_] [_2_] | || d |
|
|
|------------[___________________________]-------------|
|
|
|
|
|
|
|
|
|
|
a) - metal chain which is permanently connected to the lock
|
|
b) - part where the 3 number discs are for the code
|
|
c) - 3 discs for the number code
|
|
d) - metal chain which you pull out with the right code (open it)
|
|
|
|
|
|
|
|
So how do i open the permutation lock without knowing the code of numbers?
|
|
This is very easy done - too easy and this is why this kind of protection
|
|
is very weak. The industry should not build them anymore. Here we go:
|
|
|
|
We take a) in our left hand and d) in our right hand in a way that we can
|
|
still rotate the 3 discs with our other fingers left. Then we pull both
|
|
sides of the chain ( a, d ) - we pull a) to the left with our left hand
|
|
and d) we pull to the right with our right hand so that it is a bit harder
|
|
to rotate the 3 discs.
|
|
|
|
Then we take the first disc with our fingers and rotate it from 0 to 9
|
|
until we feel and hear a "clack" or "click". This tells us that we have
|
|
found our first code number. The same we do with the 2 other discs left
|
|
until finally the permutation lock opens.
|
|
|
|
I did this already as a kid, 15 years back, on the permutation lock of my
|
|
bicycle. But they still sell these insecure locks today and you can find
|
|
them on many products which often costs lots of money. So dont buy such a
|
|
lock and of course do not use this technique to steal stuff from others.
|
|
|
|
Probably there are lots of more different kind of such locks which you can
|
|
open with the same technique or in a bit different way - for example if it
|
|
is not a chain lock but a normal lock for a locking bar and so on.
|
|
|
|
|
|
|
|
[EOF]
|
|
|