"CARD LOCK" (Mechanic) ever seen one of those?

[captainjerry]

"CARD LOCK"
manufactured by tekraft (taiwan)
it's pretty cheap (the price tag was $13, but i only payd 7..)
and it's all mechanic.. no magnets or anything
i tried poking aroung inside the card slit, and only managed to get my pick stuck inside... it's pretty complex.. lots of springs and stuff..

http://www.youtube.com/watch?v=2A4O5Irm0EY





shims, though, do the job


a better look at the key

[HeadHunterCEO]

nice shims. I don't think the manufacturer inteaded you to use the card in that manner to open the lock though

[Eyes_Only]

Hahahahahaha Manufacturer goes through all that trouble to make a more higher security padlock and they forget about the shim attack that litters YouTube.

[Legion303]

Why do I get the feeling that any random ID/credit card shoved in there and jiggled around will pop this thing like Jiffy Pop?

That analogy sucked, but you see my point...

-steve

[captainjerry]

well...
i am still amazed
i managed to get it open with a playing card!
second video on the way...

[captainjerry]

and.. there it is
http://www.youtube.com/watch?v=NeiKdNwC5lQ

[Trip Doctor]

Maybe there are cone shaped pins, and the radius of the holes on the card decides how far the pin goes down.. something like that.

[LeeNo]

and.. there it is
http://www.youtube.com/watch?v=NeiKdNwC5lQ

Nice vid and great job on hacking this one!

Where do you find this sort of lock? I'd love to practice. Did you try opening this lock with standard picks? How does tensioning work with this? I am guessing TripDoctor is correct in there being cone-shaped pins.

Very interesting..........

[captainjerry]

Nice vid and great job on hacking this one!

Thank you

Where do you find this sort of lock? I'd love to practice.

well.. i found it in a small house-supply store in tel-aviv..
other then that, this is the only place i found on the net that offers these locks:
http://www.allproducts.com/manufacture8 ... t/c66.html
there's a 2,000pcs minimum for order though...

Did you try opening this lock with standard picks?
How does tensioning work with this?

yes, and only got them stock in there...
too many components in there, which all have to be pressed down simultaneously... one (or even two) pick just wouldn't be enough...
a playing card (plastic) is good because it's just the right size to interact with all the components, and yet flexible enough..

no tension needed.

I am guessing TripDoctor is correct in there being cone-shaped pins.

well.. to be honest, i really don't know
i think it's something of that sort.. only not pins, but metal flaps
a bit more elaborate, and i guess a lot less officiant
I've added a close-up of the card slit.. any other ideas on how this thing works?

[greyman]

I think that the Japanese company Saiko has been making these for quite a while. There's a few different sorts, going from 1 line of pins up to a matrix of pins.

[jbrzensk]

I am not positive, but pretty sure the single row hole card locks work with a cam that rotates with fingers that feel for the holes. If there are holes, the cam can rotate. If there are no holes, then the cam cannot rotate (like with a credit card). This picture is poor but I think it shows the basic theory. Multiple rows would have multiple cams.

[FFVison]

I am not positive, but pretty sure the single row hole card locks work with a cam that rotates with fingers that feel for the holes. If there are holes, the cam can rotate. If there are no holes, then the cam cannot rotate (like with a credit card). This picture is poor but I think it shows the basic theory. Multiple rows would have multiple cams.

If this were the case, I would think that a simple thin, firm device (hanger or strong wire) should just be able to slide in there and pop it. I think I agree with the cone shaped pins, though a cone seems like it would offer too much resistance and that it would warp the holes in the key card. I guess this is all just speculation though, considering I have not real experience with these and I don't know what it feels like when I try to use the card on it.

I was also thinking that perhaps this uses a telescoping pin design or something. I'm thinking that the top of the card starts to try to turn the cylinder and then if the pins fall into the correctly shaped holes in the card, then the shackle is released somehow. Just speculating though. Let me know if you figure anything out on this because I'm curious.

[greyman]

Seems to me that the lock pictured would have 3 sizes of pins: very short (no cut to card), short (small hole in card) and long (big hole in card). The mechanism looks like a slinding carriage, such as Vingcard. I don't see why cams would be needed - a sliding pin-tumbler mechanism should do the trick.

[guest5999]

It could just be a simple sidebar type mechanism. With slotted "pins", the card would elevate them all and the holes would determine exactly how far each is elevated. When the correct card is inserted, the slots on the pins would align allowing the locking mechanism to slide in, freeing the shackle to release.