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High Security Handcuffs Opened With 3D-Printed and Laser-Cut Keys

Sparrowvsrevolution writes "In a workshop Friday at the Hackers On Planet Earth conference in New York, a German hacker and security consultant who goes by the name 'Ray' showed that he could open high-security handcuffs from manufacturers Chubb and Bonowi with plastic copies of keys that he cheaply produced with a laser-cutter and a 3D printer. Both companies attempt to control the distribution of their keys to keep them exclusively in the hands of authorized buyers such as law enforcement. Lasercut plexiglass versions of the Chubb key, which opens handcuffs like the ones used in passenger airline restraints, were selling for $4 at the conference. Ray plans to post the CAD file for the key on the 3D printing site Thingiverse after LockCon later this week."

30 of 202 comments (clear)

  1. Mcgyver by Anonymous Coward · · Score: 5, Funny

    Mcgyver used a bar of soap and a file to copy keys. Color me unimpressed.

    1. Re:Mcgyver by Anonymous Coward · · Score: 3, Informative

      MacGyver (http://www.imdb.com/title/tt0088559/). Not offensive to some, but the difference between a Mc and a Mac is like calling a Suni a Shiite to others.

    2. Re:Mcgyver by future+assassin · · Score: 5, Funny

      What if the laser was on a shark?

      --
      by TheSpoom (715771) Uncaring Linux user here. I have nothing to add to this but please continue. *munches popcorn*
    3. Re:Mcgyver by PPH · · Score: 4, Funny

      And neither will take kindly to being called MacGruber.

      --
      Have gnu, will travel.
    4. Re:Mcgyver by bitt3n · · Score: 4, Funny

      Mcgyver used a bar of soap and a file to copy keys. Color me unimpressed.

      Ok, you're colored. But what's this? Suddenly you're pulled over and in need of a handcuff key.

    5. Re:Mcgyver by Smallpond · · Score: 3, Interesting

      Really? I've tried using an actual key and a key duplicator and it still doesn't work half the time. Tolerances are really tight on good locks.

    6. Re:Mcgyver by jaymemaurice · · Score: 4, Interesting

      Since most locks use standard tubler sizes, the key code (tubler measurements) can be determined from a photograph of the keys and then cut from the keycode

      --
      120 characters ought to be enough for anyone
    7. Re:Mcgyver by swb · · Score: 3, Funny

      The real hard part is doing any of that with a broom handle sticking out of your ass.

  2. see by Anonymous Coward · · Score: 4, Funny

    See, that's why they should simply use magical warding and locking spells. Then anyone trying to escape would have to get a really lucky die roll to overcome the caster level of the original lock spell.

    1. Re:see by MachDelta · · Score: 5, Funny

      Ah, but what if i'm carrying plastic keys AND a loaded D20? What will you do then?

  3. Re:"cheaply produced" by ThatsMyNick · · Score: 4, Insightful

    Well, $4 is cheap enough.

  4. Re:"cheaply produced" by Anonymous Coward · · Score: 4, Informative

    If you actually read the article, you'll find that he produced keys with a laser cutter and separately with a 3D printer. You don't need both.

  5. LockCon? by Anonymous Coward · · Score: 3, Interesting

    The fact that he managed to make a key for these doesn't surprise me at all.

    The fact that there is a LockCon on the other hand.....

  6. Endless Cycle by Master+Moose · · Score: 5, Funny

    Now lets say this type of key creation is outlawed. .

    Create handcuff keys
    Be put in handcuffs
    Use Key. Escape

    It will be like bribing Law enforcement with counterfeit cash

    --
    . . .gone when the morning comes
  7. Re:identical? by jklovanc · · Score: 3, Interesting

    Did you read the article? All handcuff keys for a certain brand are identical. That is to allow one officer to handcuff a suspect and any other officer to remove the cuffs. The issue is that the arresting officer may not be anywhere around when the suspect needs to be uncuffed as the suspect may have been passed on for transport. This is the way handcuff keys work. Manufacturers are now trying to restrict the possession of keys by being selective to whom they sell. The printer/laser cutter method of making keys now makes this effort useless.

  8. Re:identical? by jklovanc · · Score: 5, Informative

    It has nothing to do with mass production. The reason is so that any officer can open any other officer's cuffs and time is lot lost trying to find the arresting officer and sorting out who owns which cuffs..

  9. Re:identical? by Anonymous Coward · · Score: 5, Informative

    ...It's not like these things are impossible to get out of if you know what you are doing...

    That would be the rub. They are quite hard to defeat compared to normal cuffs. Having an interest in the lockpicking community I can say hardly the top 5% of them could get out of these with improvised tools. Making a tool out of scrap bits of plastic makes them easy for anyone to get out of.

    Anything a laser-cutter or 3D printer can do so can a human, especially locksmiths with an eye for detail. The skills are not dissimilar to watchmakers before precision machine tools. These new methods makes anyone of no skill and no talent be able to do what only highly trained, highly practiced people can do. That is a security threat.

  10. Re:identical? by smart_ass · · Score: 5, Informative

    There have been commercially available disguised handcuff keys for a long time.
    This one isn't terrible, but not the best I have seen either.

    http://theawesomer.com/bracelet-with-handcuff-key/144904/

    Note: The people most likely to want to get away after being apprehended are both guilty AND repeat offenders. The second factor being a group that might have the foresight to wear such a thing.

    --
    Ouch ... did I just say that.
  11. Re:Airline security? by PPH · · Score: 4, Interesting

    I can confirm this. I've had a common police handcuff key on my keyring for years* and I've never had it singled out at any security checkpoint. The keys go in the briefcase with a bunch of other crap where they might even be difficult to identify as keys.

    *Kinky ex girlfriend. I figured I'd better stash a few keys in convenient places in case she wandered off at an inappropriate moment.

    --
    Have gnu, will travel.
  12. A Handcuff isn't meant to be unbreakable by joeflies · · Score: 4, Insightful

    the goal of a handcuff is to restrain a person, namely a person who isn't likely to have a copy of the key handy, nor a 3d printer. And the detained person will not likely be given access to people who have keys or printers either.

    It doesn't matter if the keys can be made easily, really, or even if it's the same key used in all the locks. THe basic point is that a handcuffed person would not be able to get themselves out without the tool.

    Perhaps a lot is being made because it's a "high tech lock". Well you can take a low tech lock, such as a chain linked to a concrete block, and even though you could easily get out with a set of boltcutters, it's just as impossible to free yourself without access to the tools.

    1. Re:A Handcuff isn't meant to be unbreakable by Jah-Wren+Ryel · · Score: 5, Insightful

      It isn't about having a 3D printer handy after you are cuffed. It is about challenging the idea of physical security through obscurity. Handcuffs rely on a "shared secret" of the physical key, that's why the manufacturers go to great lengths to control distribution of those keys. But 3D printers make it practical to turn that physical key into data, and at that point all of the problems of security through obscurity of information start to apply to a formerly physical security model.

      In other words, all it takes is for one person to "scan" a key and upload it to the internet and now it is orders of magnitude more likely that someone will have a copy of the key on their person, perhaps disguised as jewlery or just in stuck in their pockets, that will let themselves unlock their cuffs while sitting in the back of a police car.

      --
      When information is power, privacy is freedom.
  13. Re:identical? by jklovanc · · Score: 4, Interesting

    No matter how complex the key bolt cutters usually work but it is rather difficult to conceal a set of bolt cutters big enough to do the job on one's person and bolt cutters that large are not all that common. Hand cuff components are made of hardened steel and a small set will not work.

    Hand cuffs are and never have been completely secure. They are more secure than the cuffs that have been around for years as those keys are very common now but they are less secure than hoped.

    There used to be one key that would open every handcuff in current use. Now there are at least three different ones. Even this makes things more secure as the suspect has to have at least three keys to ensure escape. Three keys are much more difficult to conceal than one. Officers can easily carry three keys on their key ring. It is not about making escape impossible; just more difficult.

  14. Also they aren't meant to be super-secure by Sycraft-fu · · Score: 5, Interesting

    Handcuffs are just a quick and easy way of ensuring someone can't cause too much trouble. When your hands are held behind your back, you can't make much mischief in general. They aren't intended to be something to hold someone securely for long periods. Just to temporarily restrain someone for transport.

    As such it isn't like the keying system has to be top notch. It is far more important that they are easy to unlock than that they are ultra-secure.

    For that matter at times the police will just use what are more or less large zip-ties. Plastic flexi-cuffs are easy and cheap to use in a riot situation. They aren't very secure, they can be easily cut off and indeed that is what the police themselves do, but you can cheaply have a bunch of them if needed.

  15. Re:How much does it actually matter? by jklovanc · · Score: 5, Interesting

    it is pretty difficult to unlock the handcuffs even you if had and could reach the key

    Difficult is not impossible and with enough practice difficult becomes easy.

    Keys can be in the mouth, swallowed, in a seam, in a concealed compartment in a belt loop, etc. There are many places to carry a key that will get by most searches. There was one instance where a man has a pouch surgically installed in his cheek just big enough to hold a handcuff key. Many "escape artists" conceal keys on their person for their acts and these keys are not found by the spectators, sometimes police officers, who search them.

    So no, an accomplice is not necessary.

  16. Re:Clever but stupid? by jklovanc · · Score: 3, Informative

    Who holds the design and patent rights to the keys?

    Design and patent rights are a civil matter and not a criminal matter. Until there is a law passed that criminalizes the possession of handcuff keys there is nothing the police can do.

    There is only one set of legitimate buyers for these handcuffs.

    There are actually at least five sets and possibly more; police, prison guards, court house guards , private security and bounty hunters. Basically anyone who has a legitimate reason for detaining someone else.

  17. Re:identical? by Anonymous Coward · · Score: 4, Insightful

    Note: The people most likely to want to get away after being apprehended are both guilty AND repeat offenders. The second factor being a group that might have the foresight to wear such a thing.

    Wrong. I want to get away after being apprehended illegally.

    You know--if the police decide to kidnap and beat me....or just beat the shit out of me while other offices stand by and watch^H^H^H^Hfigure out their cover stories....Maybe they'll just handcuff you and take you back to their torture chair to let you die...or your baby.

    Maybe you should do nothing. You'll get your day in court, right? I mean--this is the United States of America where we have due process and a fair trial. The government would never fuck with that perfect system.
    Resist. Always resist.

  18. Re:identical? by Anonymous Coward · · Score: 4, Interesting

    A few years ago someone arrested in Tampa had a key in their back pocket, not found during the frisk, and managed to get loose and killed 3 cops. Not saying its common, but your impossible situation has happend in the recent past with the worst possible outcome. The criminal always carried the key with him anticipating trouble with police.

    http://tampabayonline.net/reports/shooting/carrday2.htm

  19. lock pick is cheaper by Charliemopps · · Score: 3, Insightful

    A lock pick is cheaper (usually free)
    There are plenty of youtube videos teaching how to make your own.
    I've yet to find a lock that I couldn't pick with one... that includes every lock in my house and even my car.
    It's really not that hard when you get used to it.

  20. Re:identical? by Anonymous Coward · · Score: 3, Insightful

    WTF is wrong with normal URLs people?!
    If you want me to follow a link then post the orignal link.

  21. Re:identical? by __aaltlg1547 · · Score: 3, Insightful

    So for the sake of convenience, they made the keys identical and therefore not secure. Same as any other security system: convenience and security are incompatible goals.