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Shrinky Dinks As a Threat To National Security

InflammatoryHeadlineGuy writes "What do Shrinky Dinks, credit cards and paperclips have in common? They can all be used to duplicate the keys to Medeco 'high-security' locks that protect the White House, the Pentagon, embassies, and many other sensitive locations. The attack was demonstrated at Defcon by Marc Weber Tobias and involves getting a picture of the key, then printing it out and cutting plastic to match — both credit cards and Shrinky Dinks plastic are recommended. The paperclip then pushes aside a slider deep in the keyway, while the plastic cut-out lifts the pins. They were able to open an example lock in about six seconds. The only solution seems to be to ensure that your security systems are layered, so that attackers are stopped by other means even if they manage to duplicate your keys."

80 of 257 comments (clear)

  1. More power to Homeland Security by daveime · · Score: 5, Funny

    So now they'll not just confiscate my laptop when I arrive in the US, they'll also pinch my paperclips and credit cards ?

    1. Re:More power to Homeland Security by david@ecsd.com · · Score: 5, Funny
      Just hope that they don't confiscate your "shrinky dink."

      Thank you, I'll be here all week.

    2. Re:More power to Homeland Security by smittyoneeach · · Score: 3, Funny

      Department of Hurdling Sharks

      --
      Get thee glass eyes, and, like a scurvy politician, seem to see things thou dost not.--King Lear
    3. Re:More power to Homeland Security by Anonymous Coward · · Score: 2, Funny

      So now they'll not just confiscate my laptop when I arrive in the US, they'll also pinch my paperclips and credit cards ?

      Everyone with a credit card is now considered a potential terrorist and will be added to the "do not fly" list.

    4. Re:More power to Homeland Security by morgan_greywolf · · Score: 5, Informative

      Shrinky Dinks are a kids toy. You cut it out and put it in the oven and it shrinks and gets stiff. See the video

    5. Re:More power to Homeland Security by nEoN+nOoDlE · · Score: 2, Funny

      I was in the pool!!!!

      --
      Don't trust a bull's horn, a doberman's tooth, a runaway horse or me.
    6. Re:More power to Homeland Security by profplump · · Score: 3, Funny

      And if don't use a credit card to buy your tickets, you were already considered a potential terrorist.

      On the bright side, now that everyone is a potential terrorist, we can at least stop maintaining the list.

    7. Re:More power to Homeland Security by kcbanner · · Score: 5, Funny

      A kids toy, eh. Shrink Dinks, eh. Gets 'stiff', eh. God, don't let this hit Usenet.

      --
      Obligatory blog plug: http://www.caseybanner.ca/
    8. Re:More power to Homeland Security by PMuse · · Score: 3, Funny

      Good call leaving out "You put it in the oven."

      After all, this is /. -- people with ovens don't let the kids here play.

      --
      "We reject as false the choice between our safety and our ideals." --The American President (20.1.2009)
  2. Is this surprising? by MagdJTK · · Score: 5, Insightful

    While using credit cards and shrinky dink plastic is clever, is this story particularly surprising? The article states that a photo of the key in question is required. If I asked the average man on the street if it was possible to replicate a key from a photo of it if you were sufficiently determined, I'd imagine they would say yes.

    1. Re:Is this surprising? by postbigbang · · Score: 5, Insightful

      Fool.

      Look at the keypad. The numbers will be worn down. Look to see if it's an even wear, that means there are more than a few combos that work, but usually it's only one or two that are commonly shared.

      Then look for the most worn, with the most dirt-- it's the first number. Elminate the clean bright keys from the pool. Eliminate zero and one; the remaining pool has the combination. It's probably just four numbers, could be five.

      Now take your Timex/Sinclair and do the math.

      --
      ---- Teach Peace. It's Cheaper Than War.
    2. Re:Is this surprising? by antirelic · · Score: 3, Insightful

      Any single defensive measure on its own is irrelevant. This was proven very clearly during the early days of WWII when the Volkesgrenadiers over ran the impressive, but unmanned defensive positions in Belgium. The same principles of security hold true today as they did 50 years ago. Any defensive mechanism that is not reinforced via a secondary defensive measure is easily defeated.

      The real story is this is story worth discussing.

      --
      20th century Marxism is not progress...
    3. Re:Is this surprising? by Lemming+Mark · · Score: 2, Insightful

      Yes, it's not entirely surprising. However, it is a little surprising since this is a rather expensive high security lock with a more complicated key. I guess you could reasonably hope you'd at least need physical access to a key to a high security lock in order to copy it successfully, rather than just seeing it long enough to snap a picture. I understood that for at least some of the locks there was a key control system that meant that simply copying the strangely-shaped teeth of the key was not enough. However, the addition of a paperclip down one side of the lock was enough to solve that problem :-(

    4. Re:Is this surprising? by Anonymous Coward · · Score: 4, Interesting

      There exist keypads that are clear with LED displays behind... they scramble, and display numbers beneath the keys when activated. No patterns.

    5. Re:Is this surprising? by closetpsycho · · Score: 5, Informative

      Most modern keypad locks like what you're thinking of actually randomize the layout of the keypad. So looking for the more worn keys is an exercise in futility.

    6. Re:Is this surprising? by postbigbang · · Score: 2, Informative

      Many of the ones I've seen in airports, banks, NOCs, etc., still have the older ones. Much can be learned just by watching the finger movements as no one covers them up, just like few people mind using CC machines that don't hide your hand movements when entering one's PIN.

      Those that randomize the layout of the keypad seem onerous. But they're not. Combos, like hand print and keypad are much tougher.

      To get around them you need to take the door handle and jar it a bit, smearing it with greasy stuff just before it's used by someone with access. Their fingerprints will be all over the pad. It's easy to lift them, then latex them if you're really into that sort of thing.

      Randomizing keypads take more stealth. Leave a short-haul cam nearby focused on the pad. Have an associate verify the focus via bluetooth whilst waiting in your secret van. Or use nice binoculars as most organizations don't think of hiding the keypads very well. A little battery-operated 'sticky' cam works wonders. Create a distraction whilst positioning it. Don't forget your fake hippie beard.

      --
      ---- Teach Peace. It's Cheaper Than War.
    7. Re:Is this surprising? by Spy+der+Mann · · Score: 4, Funny

      Elminate the clean bright keys from the pool. Eliminate zero and one; the remaining pool has the combination. It's probably just four numbers, could be five.

      Now take your Timex/Sinclair and do the math.

      Let' see... *taps madly into his Timex/Sinclair*

      And the result is...

      12345

    8. Re:Is this surprising? by Dun+Malg · · Score: 4, Informative

      Most modern keypad locks like what you're thinking of actually randomize the layout of the keypad. So looking for the more worn keys is an exercise in futility.

      There are very few manufacturers of those kind of keypads. The vast majority of the keypads installed are fixed and suffer from the "dirty keys" exploit. The "scramble pad" keypads are 4-5 times the price, and very few people outside of defense contractors spec that sort of thing. I've only ever seen one, and I've installed and serviced hundreds of keypad entry systems.

      --
      If a job's not worth doing, it's not worth doing right.
    9. Re:Is this surprising? by Dun+Malg · · Score: 4, Informative

      It should be noted that one of the major selling points of the Medeco locks is that, through some mixture of technological and legal means, Medeco is quite aggressive about restricting access to key duplication blanks.

      Of course, their aggressive protection of their patented key blanks is about marketing more than anything else. They are the sole legal supplier of keys to their locks*, so they therefore reap profit every time someone needs another key. The only selling point of their high priced and inconvenient to procure patented keys is the natural control this restricted access creates. They've managed to sell this access with very slick marketing which conveniently glosses over many important security issues. But then again, their business is only to sell locks, and they do it very well. The mechanical quality of their stuff is high as well, so you at least get a quality product for the price.

      * You can buy 3rd party blanks now for the old Sky, Air, and the newer Biaxial keyways. They're always looking for one more mechanical "kink" to add to the system to justify the next patent. Skay and Air were patented on the strength of the rotating pin concept. Biaxial was patented via making the cuts staggered either for or aft on the key. The latest M3 is patented on a step on the blank that pushes a silly little "anti pick" pin near the back. Seems to me they're running out of ideas.

      --
      If a job's not worth doing, it's not worth doing right.
    10. Re:Is this surprising? by CityZen · · Score: 3, Insightful

      You are missing the point a little bit. The locks in question are not ordinary locks. They are very expensive, high-security locks, like you might find in a secure government installation. The keys are not cut in an ordinary way; the ridges have different angles on them in order to turn the pins to the left or right as they are raised to the correct height. The company in question is saying that this kind of bypass is not possible. And guess what? It is.

      It just goes to show: you should never completely trust a security system that has only been "designed" to be secure. You should only trust it after lots of intelligent hackers have failed to crack it over time.

    11. Re:Is this surprising? by jd · · Score: 2, Informative

      Medieval thief-proof locks could not have been beaten by simply copying the key, because you needed to know the specifics of how to use the key. (It deadlocked itself if you used the key in a "normal" fashion.) It is easy to imagine that a modern lock could be made vastly superior to a medieval one. (Doctor Who fans may be familiar with the boast that there are 600 ways to use the TARDIS key and 599 ways to cause the lock to fuse solid, a somewhat dramatic reference to the idea that you can make locks that contain multiple lines of defenses, of which the key itself is merely one.)

      Modern car keys use a different multi-stage approach, whereby the key contains either an RFID tag or some other form of readable chip. Copying the mere physical layout gets you past the first line, but does nothing for the second.

      It would be trivial to extend the car key method by adding encryption to the information (which is probably done already), adding a capacitor whose value must be matched, and so on. Some cars also use thumb-prints, but there have been cases of car-jackers stealing the driver's thumb, making this security measure dubious.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    12. Re:Is this surprising? by Z00L00K · · Score: 2, Interesting

      Personally I would say that a purely mechanical key is insufficient in a high-security building.

      It would be necessary to also have electronic support in the same way as the immobilizer in cars works so that the lock refuses to open whenever an unaccepted key is used. And even if possible also sound an alarm and keep the forged key in the lock, which will then be considered evidence.

      If I have legitimate business and the key is kept by the lock I shouldn't be worried when Secret Service shows up to resolve the problem, but if I'm on illegitimate business then I will lose the key that probably carries some of my DNA and have to make myself scarce.

      The idea behind locks are to deter entry from the people that are curious or looking for an opportunity and to delay those that really are planning to entry anyway.

      --
      If builders built buildings the way programmers wrote programs, then the first woodpecker would destroy civilization.
    13. Re:Is this surprising? by Kijori · · Score: 2, Interesting

      Not only that - the technique seems overly simplistic and rather optimistic.

      The M3 has three high security features:
      1) Sidebar. This means that the peaks on the key are milled at an angle and rotate the pins as well as lifting them
      2) Slider. This is like a long, horizontal pin that must be depressed.
      3) Key control.

      The third of these - key control - is not relevant to the feasability of duplicating the key.

      The slider is the weaker security measure. Its main use is in preventing M3 keys being duplicated on standard key blanks or milled out of sheets of metal. The only problem is that, since the M3 keyway is quite wide, it is possible to insert a separate pick and depress the slider - apparently this is possible with a paperclip. However it must be remembered that the M3 can ship with custom keyways, and as such the fact that a "standard" M3 is vulnerable to this simple attack doesn't mean that it will be possible against the White House.

      The side bar is what seems to me to be the biggest obstacle. The authors of this attack claim to be able to make a copy of any key simply by using a photo of the key and some plastic. However, judging angles from a photograph is far from easy, and the M3 is built to very tight tolerances, meaning that the rotations must be accurate. If you get the angles wrong you risk jamming the lock; not a problem with the authors' test locks, where they could simply start again, but a big problem in a break-in.

      Finally, the article talks about Medeco locks being "unpickable" and this being the first time locksmiths have ever heard of it being attackable. This is untrue - it is possible (albeit extremely difficult) to pick an M3 with standard picks. Specialist picks also exist for the M3 which make it much easier (although it is still a good lock). And it is worth pointing out that this is not a blanket attack against high-security locks; other brands use techniques such as dimples milled into the side of the key, which would be immune to this technique.

      Basically what I'm trying to say is that this seems much less of a big deal than the article author seems to think. Bypassing your own lock is very different that "destroying the security" completely.

    14. Re:Is this surprising? by Anonymous Coward · · Score: 2, Funny

      Your Timex/Sinclair is wrong. I got 58008

      Oh wait... I might have had that upside down.

    15. Re:Is this surprising? by marcansoft · · Score: 4, Funny

      You, sir, just reduced the security of your PINs to 34.93% of the original value.

      Have a nice day.

    16. Re:Is this surprising? by roystgnr · · Score: 2, Funny

      an excessively extravagant security system preventing unauthorized pooping.

      Preventing? A lockable toilet lid would only make unauthorized pooping much, much worse.

    17. Re:Is this surprising? by Dun+Malg · · Score: 2, Interesting

      It would be trivial to extend the car key method by...adding a capacitor whose value must be matched, and so on.

      Nah, that's a dead end. GM did that already years ago with their VATS keys, only with a resistor (more reliable than a capacitor). Big pain in the ass, for very little additional security. Sealed transponder modules have completely superseded them, as they provide greater variation (unique IDs vs. only 15 resistance values), they can't be read with a $2 multi-meter, and they aren't dependent on flaky physical contacts to be read.

      --
      If a job's not worth doing, it's not worth doing right.
  3. You can copy keys? by narcberry · · Score: 5, Funny

    OMFG!

    --
    Modding me -1 troll doesn't make me wrong.
  4. the actual threath by fractic · · Score: 3, Insightful

    Now what is the actual threath? Shrinky dink or easily duplicated keys?

    1. Re:the actual threath by cheater512 · · Score: 3, Funny

      Shrinky dink of course!
      It must be banned to protect national security!
      Visa cards as well.

      Hmm a idea.

      I am a Visa card confiscator from the NSA. Can I please have your card?

  5. 3-d printers? by LM741N · · Score: 4, Interesting

    I bet those new 3-D type printers could perform the same thing without using razor blades and such. In fact, you could probably make a computer program to transfer from images to the final "printout."

    1. Re:3-d printers? by tshetter · · Score: 2, Insightful

      The interesting part is that you dont need very high quality scans or multiple images of an object to replicate the object in 3D.

      You only need a fairly good image of a Medeco key and you can then cut a blank easily.

      These Medeco keys are just like normal house/car keys, except they have variable slopes and spacing between peaks and troughs. Trying to cut those with normal tools would be very hard...but having a scale image to cut with an exacto knife is simple as pie.

      The hardest thing about coping those Medeco keys was the difficulty in cutting the angles and the proper spacing. Now that is easy.

      Open Source Intel/Security wins again.

    2. Re:3-d printers? by pimpimpim · · Score: 4, Informative

      3D printers create by default quite brittle objects, as it is lots of little dots of plastic glued together. To get a resistant plastic copy you should make a mold and then compress plastic inside of it. The forces on a key when turning can be quite high, that's why also thin sheet metal doesn't work here. Credit cards however can resist bending forces quite well. I've never seen a shrinky dink but I guess it's the same story.

      --
      molmod.com - computing tips from a molecular modeling
    3. Re:3-d printers? by icegreentea · · Score: 2, Interesting

      The credit card just raises the tumblers. You still need a torsion wrench (a screw driver will do) to turn the lock.

    4. Re:3-d printers? by Dun+Malg · · Score: 2, Informative

      ...The patented, integrated design works so that the bitting performs two functions, lifting the pins and rotating them.

      If that means what I think it means, it's completely worthless against a pick. A pick doesn't care about how far apart the pins are, only that they're not perfectly in a line, thus allowing them to be set one at a time, turning an exponential process into a linear one.

      You've obviously never actually seen the inner workings of a Medeco lock cylinder. They're like standard lock pins, only with a chisel point and a vertical groove down the side. The pins have to be rotated such that the groove faced perpendicular to the key, allowing the "fingers" of the sidebar to drop in. There are also one or more shallower false grooves that trap the sidebar but don't allow it to open. It's not unpickable, of course, but it's not as easy as you seem to think.

      Schlage's drum-shaped "high security" pins are a much better solution.

      Drum shaped? Don't you mean spool shaped? At any rate, Medeco not only uses those as well, but was using them long before Schlage even got around to developing a "high security" lock cylinder.

      Or better yet, not pretending the classic pinned locks are security devices at all.

      There's the real kicker. Even a truly unpickable lock is worthless in a wood door if you have a sawzall. One of my favorite "lockout" stories involved a lawyer who lost his keys, and his interior office door had a Medeco deadbolt. His spare keys were inside (dumbass) so all I needed to do was get in the office. I went to the truck and returned with a six foot ladder. I pushed up the suspended ceiling tile, climbed up. I pushed aside the tile over the inside of the door, hopped over, and opened his door from the inside. The guy seriously rethought his security measures in light of that.

      --
      If a job's not worth doing, it's not worth doing right.
  6. Getting the key picture, is the key to success by Nymz · · Score: 4, Funny

    I suppose if I had a picture of someone's login and password, I might be able to deftly hack into their computer.

    1. Re:Getting the key picture, is the key to success by Anonymous Coward · · Score: 5, Funny

      Sure, if their password is *******.

    2. Re:Getting the key picture, is the key to success by Minwee · · Score: 2, Informative

      And, if you had been sold an $18 billion login system that was absolutely guaranteed to be unbreakable to anyone who wasn't directly issued the original login and password, then you might be a little surprised at how easy that was.

      Which brings us back to the FA. We're not talking about a $10 lock from the hardware store here, these are "high security" locks that are supposed to have keys that cannot ever be copied unless you have the original key codes that were used to key the lock.

    3. Re:Getting the key picture, is the key to success by rfuilrez · · Score: 2, Informative

      They don't set off the alarm. The computer in the car just decides not to put fuel or spark to the cylinders. Unless it's some aftermarket system. OEM doesn't do that.

    4. Re:Getting the key picture, is the key to success by cheater512 · · Score: 3, Funny

      Yep. Those little RFID tags are really good since you cant copy them. .....SHIT!!!!

    5. Re:Getting the key picture, is the key to success by rcw-home · · Score: 2, Insightful

      And, if you had been sold an $18 billion login system that was absolutely guaranteed to be unbreakable to anyone who wasn't directly issued the original login and password, then...

      I'd eventually be asking for my $18 billion back.

      Security professionals (and Slashdot readers) should be very familiar with two truisms: it can always be broken and it can always be copied. If you claim otherwise, you are selling something.

      I know locksmith friends who can stare at a key and read the pinning combination off of it (and if they read enough of them, can deduce the master combination). For the rest of us, a key will make a great imprint on a wet bar of soap. And a locked door (just like a safe) can only ever be counted on to delay someone for a certain amount of time, never to keep them out entirely - whether they can turn the lock or not.

    6. Re:Getting the key picture, is the key to success by D+Ninja · · Score: 2, Funny

      Sure, if their password is lesbian.

      Good thing none of us can see your password. Only you can. As long as you type in your Slashdot password into Slashdot, it will hide it from us.

      (This would have worked so much better if you weren't posting as an Anonymous Coward.)

    7. Re:Getting the key picture, is the key to success by jhol13 · · Score: 2, Interesting

      In Estonia criminals had "keys" made of titanium. With them and using just force (pins in the lock would break) they could open any car door and start the engine.

      The car manufacturers did nothing to improve the locks until there were law requiring an immobiliser.

    8. Re:Getting the key picture, is the key to success by Dun+Malg · · Score: 2, Informative

      What's wrong with Abloy locks? Why don't they just use Abloy?

      Abloy disc tumbler locks are great, but they have a serious ease-of-use problem. Since the discs have no return springs keeping them in the "ready" position, they can be inadvertently turned or even just vibrate out of alignment. This requires the user to insert the key and twist it back and forth to "capture", one layer at a time, all the discs before being able to turn the key and open the lock. It's not a hard trick to learn, but it is one more trick than is required for a standard pin tumbler lock, and most people are dodos.

      --
      If a job's not worth doing, it's not worth doing right.
  7. Not news... by russotto · · Score: 3, Informative

    If you have a picture of a key, you can generally duplicate it well enough to work in metal (easier if you have a blank, but not necessary). It's not the shrinky-dink that matters. Cutting a key by sight based on a key sitting on the seat of an car is apparently a useful skill for locksmiths.

    1. Re:Not news... by iceyone · · Score: 2, Insightful

      It *is* the shrinky dink that matters. You can't cut a duplicate Medeco key in metal. Medeco key teeth have an angular component. They are 3 dimensional keys, whereas your usual kwikset or schlage lock are 2 dimensional.

      The tumblers in a Medeco lock require some rotation to unlock, as well as vertical lift. That's why this hack is so clever - the shrinky dink or plastic can twist as you jam them into the lock and push up with the backing spline.

      Until this, Medeco locks were considered to be uncrackable.

    2. Re:Not news... by russotto · · Score: 4, Insightful

      Of course you can duplicate a Medeco key in metal; Medeco keys are made of metal in the first place. Key control means you can't get the proper blanks from any legitimate source, but it's still a fairly simple hunk of metal.

      Medeco locks were never considered "uncrackable". Medeco has claimed they're unpickable, but I think only the Biaxial remains unpicked. But picking is an attack that doesn't require knowledge of the key.

    3. Re:Not news... by Dun+Malg · · Score: 2, Interesting

      >Cutting a key by sight based on a key sitting on the seat of an car is apparently a useful skill for locksmiths...

      Sigh. My locksmith can't get a working copy 1 times in 3 even when I give him the original to make copies.

      If you're just going in and having the key duplicated, there's a pretty good chance your original is crap. Garbage in, garbage out. A key duplicator is like a xerox machine. It makes a copy, but the copy is never going to be quite as good as the original. I keep my duplicator adjusted to within one thousandth of an inch after 10 generations, but even that is sometimes too much for a crappy key. A few "generations" removed from the factory original key by dodos with badly adjusted duplicators, and you'll have a key that works, but won't duplicate reliably. Instead of having your locksmith make you a $2 copy of a bad key, fork over the cash to have him decode the key and cut a new one by code. If he can't do that, you need to find a new locksmith. If your "locksmith" is the slackjawed guy at Home Depot that runs their badly-calibrated key duplicating machine, you need to find a real locksmith.

      --
      If a job's not worth doing, it's not worth doing right.
  8. Re:There goes by Rachel+Lucid · · Score: 2, Interesting

    Screw your cheap microfludics! ... There goes my etsy store!

  9. Re:Is it just me by Dachannien · · Score: 5, Insightful

    Layered security indeed!

    Maybe these locks aren't all that, but it's the Secret Service agents capping you in the head that you really have to worry about.

  10. They protect the White House? by david@ecsd.com · · Score: 2, Insightful

    Silly me, I thought that men with guns protect the White House.

    1. Re:They protect the White House? by ColdWetDog · · Score: 3, Funny

      Silly me, I thought that men with guns protect the White House.

      Wrong again, Dave. It's sharks with lasers. Everyone knows that.

      --
      Faster! Faster! Faster would be better!
  11. Re:Is this surprising? -- No. by Anonymous Coward · · Score: 5, Interesting

    My granddad was a blacksmith who taught his trade to young crims at a borstal in the 1950s. One of them showed how he could open a Yale lock in about 30 seconds. He needed whatever plastic was equivalent to a credit card way back then, and a cigarette. He could feel the piston movement and burn the height into the plastic. No photos needed. The young crims summary: "Locks is to keep honest people out, boss."

    In a sense, a moderately good lock that is all that is needed. I'd agree with the article that the objective is to remove a defense of accidentally straying. The next layer of entrapment is the real one.

  12. Wasn't this done w/ Diebold? by mikesd81 · · Score: 4, Interesting

    Brad Blog has this story from when Diebold had a picture of their key on their corporate website back in January 2007. Diebold's since replaced the picture. There's a video of the key in action @ the link I just posted.

    --
    That which does not kill me only postpones the inevitable.
  13. Re:This just like how the mythbusters got past oth by Firehed · · Score: 3, Insightful

    They also had Kari wander around in a giant fluffy bird suit to get past those ultrasonic sensors, IIRC. It's not exactly practical, but it makes for great TV. I'm sure the trial of whoever tries that in DC will be equally amusing.

    --
    How are sites slashdotted when nobody reads TFAs?
  14. Here's what I don't get... by NeutronCowboy · · Score: 5, Interesting

    20 years ago, my house used to have a 3D-key - in other words, it had teeth all-around its central axis. Why? Because it is much harder to manipulate the tumblers that way. Not to mention that just photocopying the key won't work - or won't work as easily.

    I'm surprised a high-security key has its teeth still on a line.

    --
    Those who can, do. Those who can't, sue.
  15. BFD by Dun+Malg · · Score: 5, Interesting

    Shrinky dinks? Paper clips? Gimme a break. I can duplicate a Medeco key blank with a piece of brass stock and a dremel tool, then cut a perfect key from a photocopy using my HPC Blitz. There's nothing amazing about what this guy's done. Given the appropriate information (cut depths and angles) any medeco key can be duplicated without serious difficulty. Heck, that's the case with all mechanical key locks. I once showed the Medeco rep who came to my lock shop how I could duplicate a standard G3 Biaxial key using a slightly modified commonly available Rolls Royce key blank. He was understandably dismayed, but not surprised. There are two kinds of locksmiths in this world: 1) the kind like the guy quoted in the article who said "Your locksmith will tell you this is impossible", and 2) guys like me who will tell you "yeah, someone could make a key to that--- I've done it myself". Point is, you want to use a locksmith more like 2) than 1). The first guy will feed you the standard Medeco marketing bullshit about how "only we can make your keys" and convince you that equals security. The second guy will tell you key control is useful, but it's not relevant beyond its obvious purpose. There are really only two kinds of common break-ins: inside jobs and random burglaries. In the case of inside jobs, all the key control in the world won't matter because the perp has a key already. This key could have been given to them, taken out of a desk drawer, or otherwise acquired via lax internal key management. This makes up 99% of all break ins. The other 1% is burglaries by random opportunist perps taking advantage of a weakness, usually on the spur of the moment. Back doors propped open by people out for a smoke, simply walking in during business hours wearing a suit, etc. All this spy crap people have in their heads about about burglars picking locks and James Bonding into their houses is fantasy bullshit. Real burglars wait till you're not home and throw a brick through the window, or let themselves in with the key you gave the cleaning service. All this hoo-hah over making a medeco key with a credit card is total yawnsville, and if anyone thinks they can get into the white house with a shrinky dink key, they're totally on crack. The whit House has things like SECRET SERVICE AGENTS, and ALARM SYSTEMS because they know keys alone are not enough.

    --
    If a job's not worth doing, it's not worth doing right.
    1. Re:BFD by Jeffrey+Baker · · Score: 5, Insightful

      Yeah I found it funny that the lamers in the write-up think the Pentagon is protected by Medeco locks. Sorry, no. The Pentagon is protected by men with rifles and grenades.

    2. Re:BFD by Dun+Malg · · Score: 2, Interesting

      Joe Crook can cut a Medeco bitting key out of an old grocery store coupon card and bypass the sidebar and slider in a few seconds without any need for a key machine or any particular skill. That's what the exploit is all about.

      It requires skill, just not much. Did I say dremeling a brass blank and cutting with a Blitz requires much skill? If you don't know the operating principles of a Medeco lock, you can't do it, but that's not saying much. The only difference is that it can be done with an X-acto knife instead of an expensive key machine.

      p.s. the sidebar isn't "bypassed", the key is cut to pass it in the normal way. The slider is a silly gimmick to give them something to patent, as the patent on Biaxial blanks has run out and 3rd parties are now cranking out Biaxial blanks for whoever wants them.

      --
      If a job's not worth doing, it's not worth doing right.
  16. I wish Abloy PROTEC locks made it to the US sooner by mlts · · Score: 5, Interesting

    I don't know about Medeco 3, but one lock mechanism that was out in other countries for almost four years before making it to the US which is quite pick resistant is Abloy's PROTEC cylinder.

    It uses no pins or springs, so bumping is useless. Vibrating the key isn't going to magically move the detainer disks into position. Picking it requires a different technique altogether than pin tumbler locks.

    So far, if I recall right, the best picking record for PROTEC cylinders took over 10-11 hours.

    Of course, if you want the best in anti pick protection, purchase either an Abloy or Mul-T-Lock Cliq lock. It has a pick resistant mechanical key, as well as a small chip and solenoid with a challenge/response system. If someone does make a key impression, it won't help much. However, for $500 a cylinder, its pricy.

  17. Picking locks with Shrinky Dinks? by lena_10326 · · Score: 2, Funny

    Errrm...

    The places guys insert their shrinky dinks... crazy stuff.

    --
    Camping on quad since 1996.
  18. Door security key cards by Anonymous Coward · · Score: 2, Interesting

    Most All door security keys cards drive a solenoid door strike .
    The pro crooks or intruders don't bother with magnetic stripe cards , electronics, , encryption etc,they buy the system and drill a hole in the right place and operate the door strike Directly with a narrow screwdriver or fashioned shorting stripe or wad of tin foil , bypassing all of the electronics and all of the security.
    Ironically , The better electronics is more precise making the drill and popping of the door solenoid that much faster and easier .

    Normal or hacked card time to door open about 2 seconds
    Drill and screwdriver about 10 seconds.

    A similar thing was done in casinos to electronics in slot machines the crooks purchased a machine and screwed it over.
      A single metal piece of wire up into the machine at the right place and instant winner.
      Casinos have since changed the way the machines work and one can no longer buy the new machines as easily,and security looks out for anyone putting things up into the machines

  19. Not a huge threat by Sniper98G · · Score: 2, Informative

    This isn't the huge threat to national security that the article would have you believe. The government does not use key based lock systems to secure anything of real high priority. They use digital combination (X-09) locks to secure any information that is classified at secret level or higher. These keys are used in the white house and pentagon, but they are office keys not keys to places where someone could do dire harm to our nation.

  20. Re:This just like how the mythbusters got past oth by Anonymous Coward · · Score: 2, Informative

    IIRC, the fluffy bird suit didn't work.

    A simple sheet held up in front of her did.

  21. Secret Service... by db32 · · Score: 5, Funny

    I would hate to be the Secret Service guy that has to tell the President he can't have his Shrinky Dinks anymore.

    --
    The only change I can believe in is what I find in my couch cushions.
  22. Am I the only one? by Toe,+The · · Score: 2, Funny

    The real news I got out of this is: they still make shrinkydinks!?!

    Who knew?

    I woulda thought they woulda been classified as toxic by now...

  23. Re:Is this surprising? -- No. by BrokenHalo · · Score: 3, Interesting

    I used to be a blacksmith myself, and I never needed a credit card. My tool of choice was a ground-down .02-inch feeler-gauge (you can get one from any DIY car maintenance shop) and a screwdriver (to do the work of turning the barrel).

  24. Re:I wish Abloy PROTEC locks made it to the US soo by Dun+Malg · · Score: 4, Insightful

    I don't know about Medeco 3, but one lock mechanism that was out in other countries for almost four years before making it to the US which is quite pick resistant is Abloy's PROTEC cylinder.

    Trouble with those is that they're ONLY pick resistant. I can drill the face of an Abloy disc-tumbler lock, remove the sidebar, and fill the drilled hole such that no one will notice--- all in a matter of minutes. After that, the old key will still work... and so will a screwdriver. The laundry machines at the apartment I lived in years ago had Abloy PROTEC locks. I never paid for laundry, and no one ever knew the difference.

    Of course, if you want the best in anti pick protection, purchase either an Abloy or Mul-T-Lock Cliq lock. It has a pick resistant mechanical key, as well as a small chip and solenoid with a challenge/response system. If someone does make a key impression, it won't help much. However, for $500 a cylinder, its pricy.

    That's just electronic access control shrunk down to fit the size of standard key access components and hybridized with mechanical keys. Great if you want to retrofit existing mortise and rim lock installations, but then you're just trading labor cost for material cost. I'd personally go for a keyless prox card system before I'd field a system powered by batteries in the key. It's bad enough dealing with your average dodo trying to use normal locks. Can you imagine the service calls from those dodos who break their keys off because the battery in the key head is dead? Locksmith's dream (service call = money in your pocket), businessman's nightmare (service call = money down the rathole).

    I don't understand why people fixate on "pickability". Criminals just don't pick locks. I've been a locksmith since 1995 (minus a couple years when the Army decided I should be in Afghanistan), and I have never seen a case of intrusion that wasn't either a) forced entry, or b) an inside job.

    --
    If a job's not worth doing, it's not worth doing right.
  25. Re:I wish Abloy PROTEC locks made it to the US soo by mlts · · Score: 2, Insightful

    The reason why pickability (or lack therof) is important is because insurance companies will, in general, cover theft if windows are broken, doors are crowbared, or there is obvious signs of forced entry. Of course, if the person breaking in is caught, its easy to tag them with breaking and entering charges.

    If a lock is picked, other than maybe some scratches, there is no evidence, so its harder to get insurance companies to cover losses if someone picks a door or padlock. Its also a lot harder to charge someone with burglary or breaking an entering if they bumped or picked a door open, then hid the tools.

  26. Dammit by Moryath · · Score: 4, Funny

    That's the code on my luggage!

  27. I love this stuff by smchris · · Score: 4, Funny

    Kids didn't have credit cards when I was in high school but every lock in our school except the outside doors (which we could sometimes tape or the like) and the principal's office were simple spring locks. Take seconds to open any of them with a piece of plastic. We got so fluid at it we were observed once from a distance and just lied, "Hey, what do you mean? It was unlocked. We were just snooping around." and he didn't push it. Did stupid stuff like swapping teachers' home room desks on different floors or laying out chairs in the auditorium to spell out expletives. A separate group we taught unfortunately got into more hardcore vandalism.

  28. Just typical Slashdot mentality by Sycraft-fu · · Score: 2, Interesting

    You see it with virtual security all the time: People around here (and other sites) seem to think that perfect security is achievable. They believe you can make a system that is perfectly unbreakable, no matter what. Now maybe in the virtual world that is a theoretical possibility, though a practical impossibility, but those of us who deal with physical security know it is impossible, even in theory. I mean I've never seen a lock, no matter what kind, that will stand up to a sufficiently large shaped charge.

    The White House doesn't buy invincible locks because they aren't invincible locks to be bought. Turns out if you do research, it is hard to get much better than Medeco for mechanical locks. However the White House also doesn't rely on just locked doors to keep people out. As you noted, highly trained men with guns would be one of their main security systems, but by far not the only one.

  29. Re:Funny... by mabhatter654 · · Score: 3, Interesting

    it's simpler than that. Each KEY has a unique (not repeated on blanks) number used once (like iButton, etc) and they're paired to the car at the dealership. The tooth pattern opens the mechanical door locks, the car doesn't start without the matching number code whether the key turns or not. Disabling the battery won't work as it happens all the time, so it's written to flash somewhere in the car computer. The various manufacture alarms all trigger off various mismatches of key versus code chip.

  30. Sensationalist... by FredThompson · · Score: 2, Insightful

    OK, so the locks have a weakness. What was the point of the statement that they're used in the White House, Pentagon, etc.? You would need access to the lock and Joe Blow ain't gettin' there. Ergo, the statement attempts to create importance where there is none.

    Try just walking up to any of the places mentioned in the OP. Can't be done. Layered security? T'ain't kiddin.!

  31. Re:Funny... by drinkypoo · · Score: 4, Interesting

    And to complete the circle, in most cases you have to replace not just the PCM (powertrain control module, which runs the engine and controls things like fuel injection and timing adjustment, or on distributor-free systems, initiates the sparks themselves) but also the sensor-reader. Sometimes this is built into the ignition switch itself, and sometimes it's just wrapped around it - but you have to get into the column to mess with it. This does NOT stop people from stealing these high-dollar cars, it only raises the bar. It more or less means you need a car to practice on before you can steal them, but dealers have to employ someone to service cars... And anyone can go to the dealer service schools, masquerading as a service mechanic.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  32. Re:Funny... by Dun+Malg · · Score: 2, Informative

    On my car, an identical-toothed key with the wrong code (I was having a dealership make a spare, and they screwed up on it) won't even open the door.

    What make of car is it? I'm not aware of any car that uses transponder interrogation to secure the doors. It seems more likely that the key is simply mis-cut, just not obviously so. The only way a dealership can actually "screw up" a key is to make the physical cuts in the metal wrong--- they don't do ANYTHING to the transponder module. The transponder is just an RFID chip that responds with a unique serial number, and this number is burned in at the factory, long before the dealer gets the key blank. The car's computer simply has a list of valid serial numbers and wont start if it doesn't see one of them.

    --
    If a job's not worth doing, it's not worth doing right.
  33. Re:Why in the hell do people still use flat keys? by Dun+Malg · · Score: 2, Informative

    These keys have been around for a long time now:

    http://www.assaabloy.com/Global/News/Image bank/Products/High res/Abloy_Key2_2649x841.jpg

    .

    Abloy disc tumbler locks? The trouble with those is that the discs are not spring loaded and occasionally require repeated twisting of the key to get it to seat all the way before opening. Not a good feature when dealing with large numbers of dodos, which most large installations do.

    --
    If a job's not worth doing, it's not worth doing right.
  34. Re:Is this surprising? -- No. by hey! · · Score: 2, Interesting

    My wife grew up in the suburbs and I grew up in the city. One of her pet peeves is that I tend to leave the doors of our car unlocked when I park. The difference is that I grew up in a neighborhood where some people would smash your windows if they saw anything in it they might want.

    Nobody in my neighborhood had fancy car stereos; they either had plain old AM/FM radios, or they had a hole in their dashboard with wires hanging out.

    Some of the kids had almost a hacker's attitude towards breaking into cars. Things you left out in your car, in plain view (like a car stereo I guess) were pretty much looked on as abandoned property. But it was the drug addicts to smashed windows. The classier kids didn't do more damage than necessary, unless they decided to take your car for a ride.

    I was visiting the old neighborhood once and locked my keys in my car. One of the local kids who was sitting on his front porch asked if I needed help, and I said yes. He disappeared into his apartment and came out with a few tools. He had my car open almost as fast as I could do it with a key, literally in about ten seconds. Didn't leave a scratch on the car, either.

    Nice kid. Practically a Boy Scout.

    --
    Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  35. Re:Is this surprising? -- No. by hey! · · Score: 2, Interesting

    My elderly mom was once stuck in her apartment by a jammed deadbolt. She couldn't get the super, and there was no exit, not even a fire escape, only a third floor balcony.

    Rather than call the Fire Department, she called me. I came over, and she buzzed me in, then I kicked her front door in (let's say I'm a little bigger than average). It took me two or three tries to break the hinges.

    Not a single soul peeked out to see what was going on, or called the cops.

    --
    Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  36. Re:Is this surprising? -- No. by fishbowl · · Score: 2, Funny

    "My granddad was a blacksmith who taught his trade to young crims at a borstal in the 1950s. One of them showed how he could open a Yale lock in about 30 seconds."

    It shouldn't take that long for a *blacksmith* ... one hammer blow should do it.

    --
    -fb Everything not expressly forbidden is now mandatory.