Picking prevention idea...

[LockNewbie21]

Heh

Imagine live converage of a thief being caught becuase he got stuckt ot he magnet on a door.

Just put up a sign, i have a gun, iw ill kill you in you break in.

But really just put up L.E.D solar powered spot lights at everywindow and door.

They use the sun, and light everything up.

[SFGOON]

I put the wrong key bitting, correct type, under the welcome mat to my apartment. Le them figure that one out - I kinda hope they wander off trying the key on different doors in my buildning.

[raimundo]

generally stainless steel is non magnetic, but not always, the way to test this is go to a tableware drawer full of various different stainless spoons n stuff, try a small magnet on them, some will adhere to the magnet, some wont, all are marked stainless. I have learned some new words on this thread, but am more familiar with stainless described as C330 and other designations like that, often the different types of inox steel are described in knife making magazines, so I suppose that its about holding an edge or hardness, I know that nickel and chrome are the alloy elements in most of it.

[RenderMan]

From my non-scientific guesstimates, it would'nt take too large a magnet to at least screw around with the pick tools. A small neodymium magnet about 1cm square by about 5 cm placed along one side of the lock where the body meets the pin chambers would make things wierd. The field would be weak enough to not suck up belts and your change, but enough that as the pick lifts the pins, it will increase it's pull and make it harder to set the pins properly, particularly with security pins.

Just a thought, I'll have to play with some fridge magnets tonight.

Render

[trevor1189]

they may find a bit annoying when household Ferrous items are brought close to the inside of the door

I can see it now, family dog walks to the door and scratches to go out, then BANG the dogs metal collar is sucked to the lock.

Actually this doesn't sound like that bad of an idea but it certainly wouldn't eliminate all lock picks, nice idea.

[RenderMan]

Playing around with some various magnets around the house I found that your run of the mill fridge magent did next to nothing. Moving up to hard drive motor magnets worked really well however.

The magnetic attraction increases (exponentially I think) the closer you get, so there's no force at the bottom of the key way, but near the top it's got quite a force. I was playing with a 2 pin weiser cylinder and found it considerably more difficult to manipulate the pins one by one. Raking also felt a bit wierd.

Might be worth shoving a small rare earth magnet into your deadbolt, just as another challenge. Or, if I was really evil, I might setup something like this for LPcon at Defcon next year

[Shrub]

If setting somthing up for the next defcon i have a mean suggestion,

Set up an electro magnet at each compass point as in top, bottom, left and the right of the lock, set these up on a timer circuit so that they turn on individualy and in a rotation or somthing,

The p[ick will be pulled in all directions at random points lol

[RenderMan]

If setting somthing up for the next defcon i have a mean suggestion,

Set up an electro magnet at each compass point as in top, bottom, left and the right of the lock, set these up on a timer circuit so that they turn on individualy and in a rotation or somthing,

The p[ick will be pulled in all directions at random points lol

Considering my new found interest in microcontrollers, this is quite the possibility

[Skips]

What if instead of a magnet on top of the lock you put a small cheap magnet on top and then magnetise the pins themselves so they stick together more but are repelled by the top of the lock. You would need to align the magnetism the right way on the pins. Would make it an unusual lock to pick and probably a little more difficult. You could probably even leave out the springs and use the magnetism itself to repel the pins in its place.

[globallockytoo]

magnetic designs came out many years ago using similar designs to what have been described here.

One brand (i cant remember the name) used aluminium blanks with magnets built in of different polarities the reated to magnetic polarities in the tumbler....they were discontinued because the cost of production was too high and there was more demand for other products.

[Skips]

Id also like to clarify that the lockpick should now be attracted to the pins themselves and stick slightly when you try to pull it away and if the upper/higher pins float up they would pull the lower pins with them slightly, the casing of the lock would have to be non-magnetic of course.

[VashTSPD]

a good idea for a lock that cant be moved (IE a door lock) is to have to have the cylinder upside down without springs so all the pins fall out of the plug and it is locking on the "bottom pins" (the non-driver pins). Then make a key that magnetically attracts the pins so it pulls them up into place. I can't think of a good way to pick that lock at all...

[globallockytoo]

a good idea for a lock that cant be moved (IE a door lock) is to have to have the cylinder upside down without springs so all the pins fall out of the plug and it is locking on the "bottom pins" (the non-driver pins). Then make a key that magnetically attracts the pins so it pulls them up into place. I can't think of a good way to pick that lock at all...

[Skips]

You would need a lockpick with an electromagnet I guess.

[Shrub]

Would that be a brass magnet?

Ive got some for sale if your interested