(Picking 127) Polish Combination Lock World Wide Challenge – decoded!


I’ve decoded the lock that was designed
to be un-decodable, pick-proof and so I’ve won the polish combination lock
worldwide challenge. This is the correct combination set here 17 8 12 9 2 and as
you can see the knob here turns all the way to about 20 past. If the wrong
combination is set – if I just change it by one number you can see the knob only
turns to about 10 past, but if it’s the correct combination you can see it turns all the way
here to about 20 past and what it’s doing is it’s pulling the actuator bar
inside into slots in the inner wheels and those are the true gates. Here’s a
graphic showing the actuator bar and one of the inner wheels. You see it’s got a
deep true gate and also false gates on every single other position but there
are five wheels. If the actuator bar hits a false gate it can’t go down and
the front knob can only rotate to about 10 past trying to pull the bar down but
the false gate is blocking the bar but if the true gates are lined up and the
bar can be pulled down by turning the knob to about 20 past then the locking
bolt is free to be pulled out of the shackle. I’ve tuned this front knob 20
past. Now I’m free to move this whole wheel pack to the right and that’s
pulling the locking bar out of the shackle and the shackle can be
completely removed like this. You can see the locking bolt coming in and out like
this and that goes into the shackle bit here and locks it in. Okay before I
dismantle the lock I’ll explain how I decoded it. Well like I said when the
front knob is turned the actuator bar is pulled down onto five inner wheels and if the wrong combination entered then the bar will hit the
false gates on each wheel, but just like in pin tumbler locks where one pin
will bind first due to slight deviations and manufacturing the bar here will hit one
wheel first due to very slight deviations If that wheel is then moved to a true
gate the bar can be pulled just that little bit further and we can pull the
bar down by tuning the front knob and that knob should turn slightly more when
the binding wheel is moved to get that true gate into the correct position. The
actuator bar with than drop ever so slightly and hit the next binding wheel. The only
problem is, as Potti314 pointed out, we can’t feel the binding wheel. Well
not on this plastic lock anyway. We just can’t feel any more or less
resistance when it comes to the actuator bar whether it’s over the true gate
or a false gate, but as I said the actuator bar should drop a little bit on
the true gate and bind the next wheel even if we can’t feel it and the front
knob should in turn, turn around just bit a little bit further even though we
wouldn’t be able to notice it. Now if I could magnify that slight turn then I’d
been business and that’s exactly what I did. What I did to magnify that slight turn was to tape a laser to the front knob so the laser would shine on a wall
and if the knob turned a little more and the laser projected the angle at a long
enough distance the laser would drop down by a noticeable amount just like
when you play pool or snooker or billiards a slight angle difference
means that when the ball gets to the other end of the table it’s quite a
distance away from where you’re mean to hit it. I secured the lock gently in a vise
with padding to make sure that it wouldn’t be damaged but also so wouldn’t
move. The laser is taped only to the front knob and of the wheels. Now I don’t
know which is the binding wheel and one way is to test each number on
wheel 1 to see if there is any laser dip and then do the same on wheel 2 and so on. This would take
a while to do but what I realized I can do I can move the whole wheel pack from
1’s to 2’s to 3’s testing each one because then I can just test 20 positions and if
there’s a dip then I’ll know there’s a true gate on that number. I still
wouldn’t know which wheel has that gate at that number but that would be easy
to figure out by moving one wheel at a time to the next number and see when the
dip disappears. Easier said than done. Here you can see how I
went through all 20 numbers four times. It wasn’t immediately obvious where the
proper dip was. Part of the reason is the false gates might be at slightly
different depths due to manufacturing variations and partly also is that I was
using a slightly different tension each time I turned the front knob but
averaging meant that I like the look of two and twenty. I tested two and twenty
back and forth and settled on two. Then I moved wheels away from two until I was
left with just one wheel on 2 that still showed the dip. Any other wheel
wouldn’t trade the dip on the number two. That wheel was the one closest to the
front knob or the fifth number in the combination. Now I can keep wheel five on
two and do the same measurements on the other four wheels and wheel five would no
longer interfere because it only had an air gap. Instead of me going through all
the numbers and averaging like I was meant to I got excited and grabbed the
first number that looked like it had a good dip and that was number five on wheel two
that later proved to be wrong but I didn’t know and I keep going and besides
I knew I could do it properly later if this fast method didn’t work. wheels three and
four were pretty obvious even though wheel two was wrong
and so that was a bit lucky. Then I found wheels one and two weren’t obvious
and I had to go back and forth a couple of times before I got there, but got
there I did. I was encouraged with each correct number as I could see the laser
dropping on the wall. Credit goes to Priyer who was the previous contestant. He
pointed me in the right direction with this method.
Now let’s dismantle this lock. Now you can see the … this is the locking
bar and you can see it going in and out and that’s when I turn the wheel pack –
whoops mm-hmm okay so when I turn the front
knob you can see this goes up and down okay so this is up the top and it goes
down and then this locking bar can be being pulled out of the shackle. When the front
knob isn’t down to that 20 past position it … the locking bar can’t be retracted. Okay I’ve ah … what have … I … change the combination … nope okay … so
I’m going to pull this out and let’s have a look at that again I goes – whoops – up
and down … all this is 3D printed stuff okay, can pull this out, and this is a
locking nut on the central axle. Okay, and this central axle can be pulled out and
here we have the … okay these are the outside wheels. I’ll just put them on this axle for now, and I’m going to pull the inside wheels
out and there’s nothing else left. Okay. What I wanted to show you … okay so, you can see here that the locking bar goes in the … can drop into to the true gate but if we have like one number wrong it
doesn’t drop in. If it’s set to a random combination that we don’t know … I … I don’t
know then … let’s see … when the locking bar drops down it looks flat but it’s gonna hit
one wheel before the others and if that wheel can be moved to … say it’s this
wheel and if that wheel could be moved to a true gate then the locking bar will drop
down and hit the next wheel ever so slightly. So what do I think of this lock
designed by Zbigniew Olejnik well obviously the claim that this lock
is a hundred percent pick proof is not true – well not true yet anyway. It needs some
tweaking to the design so that it no longer has this vulnerability … Zbigniew is talking about making the false gate have random depths within a range
so that when a binding wheel is moved to the next number it might be a completely
different wheel that’s binding next so binding would jump from wheel to wheel
every time you moved a … a number and that would make things more confusing to
decode but it was still be possible to decode it in my opinion so I think it
would require some additional tweaks. I really do you think Zbigniew will
design a decode-proof lock because he’s very passionate about making a lock
that’s really secure. He something I haven’t thought of before, with any
new type of lock that comes along with a fancy key and other fancy bits like
magnets and extra pins or curves or warding or whatever to make it secure it’s only
secure until someone makes the right tool because those key locks have an
opening to be attacked and the key simulated. With a truly secure
combination lock there is no keyhole to attack and so the only real hope of a
truly secure lock is a really good combination lock. The thing is instead of
mechanical locks I believe digital locks are the future,
when they’re done properly that is. They have so many advantages like slowing
down allowed combination guesses after three wrong attempts and cheap master
access for officials – things like that – but mechanical locks will be around for
a while because people don’t trust digital locks and also sometimes it’s
not appropriate to have a digital lock but I really do like this lock my only
other reservation is that if Zbigniew really does make a secure hundred
percent pick-proof lock the some countries will see this as a threat to their
national security as some countries like to be able to have their authorities to
have the ability to break into anything. I’ll provide a link to the Polish
combination lock webpage and there you can read about the lock and Zbigniew’s
passion to make a secure lock. He has a donation section on his page for those
of you who want to help him make his dream a reality.
Lastly I’d like to thank Zbigniew for inviting me to participate in this
worldwide challenge. Cheers

39 thoughts on “(Picking 127) Polish Combination Lock World Wide Challenge – decoded!

  1. I couldn't show the laser moving as I turned the numbers as my wife wouldn't let me film in the lounge … it was the only room big enough for what I needed … so I described what I did instead (in my lock lab). This method took 6 hours to decode the lock … started at 9pm and finished at 3am. Couldn't sleep after that so stayed up all night. When the lock design is tweaked then it should be an awesome lock.

  2. Brilliant! you are absolutely brilliant.
    Big congratulations my friend, excellent decoding
    You are the Master Decoder.

  3. Mr Swynndia, you are a Genius. Wow I am so impressed with you, you are amazing.. Congratulations Friend on Decoding the Polish Combination Lock World Wide Challenge. ๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿงก

  4. The false gate not being the same "height" as the true gate seems to be a fatal flaw, if I understand you correctly,am I understanding you properly?

  5. Congrats! You are a true master combo lock defeater. If you can defeat a S&G 8088, then we're all done for. Ha!

  6. Wow, congrats! That's awesome news! I might have shouted out load when I saw the title of your vid.. which probably was strange to anyone close by ๐Ÿ˜› Very ingenious!

  7. I think that Kaba makes such locks that are safe as digital and combination locks (in case battery or power fails and digital part becomes disabled) , but they're quite expensive. Also , digital locks should generally avoid access cards , key fobs and similar contactless systems as they can be easily exploited. Contacless are usually RFID or NFC enabled , I'd skip bluetooth and similar as their protocols are not made for high security and have hardware related issues that can't be removed without completely modifying BT itself , and due to various attacks that payment cards are vulnerable. And , also , entire encryption algorhytms can be cracked with few months of dedication and You can always generate , when cracked , valid responses. That includes even certificate layer added atop of it. We have managed to defeat even hardest software licensing systems which have other (structural) applications as well.

  8. Absolutely incredible mate. Very smart way to decode the lock ๐Ÿ‘๐Ÿค˜๐Ÿ––๐Ÿป

  9. Huge congratulations to you on cracking the uncrackable lock. You truly are a master and highly skilled. I knew you could do it

  10. Well done Swynndla, congratulation! You find the way how to decode my mechanism. I wrote short article on my page here: https://www.polishlocks.com/next-steps/ please read it and comment what do you think? Once again congratulation for your passion, creativity and skills. Cheers, Zbigniew

  11. I knew you would get it my friend. That was definitely thinking out of the box as well. Now you understand what I meant I guess? That's very impressive using the laser, new idea others could use as well. Great job my friend.

  12. ongratulations. you deserve the prize.

    I was thinking about using a stethoscope to listen internal sounds when dialing.

    keep up .
    this lock can still be marketed without improvement. for I can't imagine a thief using laser projected on a wall … this will attract attention, unless it's a IR laser …

  13. The was an awesome video and your dedication is remarkable. I would have never thought that this could be done. I would have imagined that the variation in tension on the know is too big to derive accurate measurements from it. But it worked for you – guess you have a well trained hand with calibrated muscle power ๐Ÿ˜‰ I'm speechless and a bit jealous to be honest. But more than that I'm fascinated by your idea and that it actually worked. It also surprises me that the tape provided enough rigidity for accurate measurements. Wow, you did you great job and I'm happy that your effort has paid off – my greatest respect my friend ๐Ÿ™‚

  14. Bloody great job mate. Very neat and simply genious idea with the laser pointer my friend ๐ŸคŸ๐Ÿ˜Ž

  15. What if you put small springs or springy foam under the bar that comes down into the gates — that way it'd be way harder to know when the bar has actually dropped down further vs. when you've just applied more pressure than you should've. Perhaps the bar itself could also be a little bendy, so that you can't just "bottom out" the springs.

    It'd be still possible if you were very precise with applying the same amount of force each time, but it'd make the approach even harder.

  16. I was sent here by HLP. I was thinking kind of the same thing. About tension/feedback from the bolt throwing dial. But your idea with the laser is why I dig thru YouTube. Good job. Now if they randomize the false gates we will have to really break out the thinking hat.

  17. ๐Ÿคฏ I think my brain just exploded lol. That is a challenge that only someone like yourself can crack. Well done my friend.

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