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What Electronic Door Lock Would You Buy?

zentigger asks: "I work for an ISP that supports internet in several dozen remote areas. Our POPs are typically fairly small shed-like structures, with a couple racks of equipment. For the most part, we can manage this stuff in-band, but frequently we need to have a local agent physically access the equipment for some minor maintenance work or adjustments. As time goes on, the shuffle of keys is becoming farcical and expensive. What we need is an electronic lock of some sort that can be reprogrammed remotely (preferably from a remote console via serial or directly via ethernet) that will stand up to extreme weather. Google certainly turns up lots of glossy brochures — although I don't see how they can -all- be 'The heaviest duty lock you can buy!' Does anyone have good experiences with any particular products or perhaps other means of dealing with the key shuffle?"

97 comments

  1. A GSA approved lock of course by laing · · Score: 5, Informative

    Sargent & Greenleaf are *THE* stanrdard when it comes to electronic locks. See here.

  2. Don't give out keys at all. by jhfry · · Score: 3, Interesting

    Your an ISP... you have bandwidth and old servers... simply get an electronic latch, a webcam, and patch it through to your security officers.

    With some easy code, you could remotely unlock the buildings for workers on an as needed basis. Plus it provides video surveillance, and a method to document who accesses the facilities and when.

    Keys would still be in the hands of a few techs for situations when the network is down.

    --
    Sometimes the best solution is to stop wasting time looking for an easy solution.
    1. Re:Don't give out keys at all. by mollymoo · · Score: 2, Insightful

      That would maximise the response time (keys would have to be found) for the most critical incidents (network failure), which doesn't sound like a great idea to me.

      --
      Chernobyl 'not a wildlife haven' - BBC News
    2. Re: Don't give out keys at all. by ralzod · · Score: 1

      This solution would break down if the local agent needed to access the shed because of a network outage. How do you let the guy in if the comm gear is hung and he is there to give it a good kick? What zentigger needs is an electronic cipher that can be set in advance, provided to the appropriate person when required, then changed again after the service is restored, maintenance completed, etc.

    3. Re:Don't give out keys at all. by Captain+Splendid · · Score: 1

      Not if the responsibility is given to a select few "higher-tier" personel, and even less problematic if part of their duties is a round of the remote stations every six months for a routine check anyway.

      --
      Linux, you magnificent bastard, I read the fucking manual!
    4. Re:Don't give out keys at all. by mollymoo · · Score: 1

      I don't follow. None of that changes the requirement for managing physical keys, which is exactly what the questioner is trying to get away from. If managing the keys wasn't a problem, they wouldn't have asked the question, would they?

      --
      Chernobyl 'not a wildlife haven' - BBC News
    5. Re:Don't give out keys at all. by j00r0m4nc3r · · Score: 3, Funny

      Since your budget is down a bit this quarter, you should just hire an H1-B immigrant to live in your POP shed 24/7 with a cellphone, a small ration of ethnic food, and a DVD of Little Superstar to keep his spirits up.

    6. Re:Don't give out keys at all. by MentalRuin · · Score: 4, Insightful

      Look at what universities use. They have thousands of users that need access to various areas, but only to very specific areas around campus. This includes students as well as staff.

      They need to control who has access, as well as when access has been gained. Most employers now use some kind of ID system, the 'access keys' could be included in the ID. It could be as simple as RFID to magnetic stripes. You could also combine these with keycodes chosen by the individual users. With this dual level of authentication, the keycodes would not need to be updated regularly because of the dual authentication.

      You could use one of your onsite servers to control access and log access. These servers could be updated in real time. The only worry would be that the server could not be updated quickly enough after an employee was fired. This is where HR comes in, if you have your system immediately revoke ID's upon employee termination, terminated employees would not be able to gain access. On the off chance that the servers could not be updated due to communication problems, the server that controls access logs would show that the terminated employee gained access to a facility after their rights had been revoked. Combine this with video surveillance you will have both digital and pictorial proof of the illegal access. In a worst case scenario, one of you security officers would need to physically show up to the site to allow access to someone that has the right to access the facility, but the inability to do so.

    7. Re:Don't give out keys at all. by Paracelcus · · Score: 1

      Yup, and use a backup with a tubular keyway to prevent picking and bumping.

      --
      I killed da wabbit -Elmer Fudd
    8. Re:Don't give out keys at all. by jhfry · · Score: 1

      I was under the impression that the issue wasn't so much the use of keys, but the number of people that need to use them on an occasional basis.

      If the submitter was indeed trying to eliminate keys altogether, then I apologize for being off topic.

      Oh, and I honestly can't think of a situation where an electronic lock doesn't need a mechanical method of opening the door, other than one involving Jack Nicholson and an ax, when the electronics fail... thus still requiring a key to be accessible on short notice during an outage.

      --
      Sometimes the best solution is to stop wasting time looking for an easy solution.
    9. Re:Don't give out keys at all. by rabbit994 · · Score: 1

      Problem with this systems is they require constant communication with auth server. We had them at my University and on occasion, when servers went down or Mr. shovel beat Mr. Optic Wire, they would have to place them in some special mode where any swipe of card (credit cards included) would open the door. Normally, campus police could accomplish this function but it would be annoying till they got there to pop open the doors. I couldn't see this working for a sites where it's geographically dispersed AND the time your going to want outsiders in there is during outages.

  3. Bit o' Warning by thesameguy · · Score: 5, Informative

    A while back I did some consulting for a somewhat remote municipality, who was in your exact same situation. They had small "equipment sheds" located throughout the region, and were having problems maintaining physical access. Their solution was to invest in a bunch of programmable electronic combination locks that they could reprogram as people were fired and/or promoted and not have to go through the whole rekeying process. This created an entirely new problem: People forgetting access codes that changed every several months. These workers worked around the problem the only way they could: Prying open the doors with tools, breaking the doors and sometimes the locks in the process. This forward-thinking municipality ended up footing the bill for the lock retrofit, a bunch of broken doors, and ultimately a return to standard keyed locks. FYI, YMMV...

    1. Re:Bit o' Warning by Anonymous Coward · · Score: 0

      And they didn't break the locks when they lost the keys?

      BTW, if they could break the locks or doors by prying, then its pointless to lock these sheds anyway.

    2. Re:Bit o' Warning by Anonymous Coward · · Score: 0

      This problem has a simple solution.

      Put up a sticker that says "If you have forgotten the code to the lock, please call 253-xxxx" on each door, where xxxx is the combination.

    3. Re:Bit o' Warning by sirket · · Score: 4, Insightful

      A user should have a combination- not the lock. A user leaves and his code is removed- the lock code isn't changed. In addition- a user uses the same combination on every single lock. It's hardly complicated. It sounds like the systems this municipality used was just broken.

    4. Re:Bit o' Warning by sumdumass · · Score: 1

      Locks keep honest people out. The Idea of changing the codes and such is to keep otherwise honest people honest. If someone is willing to break the law, they will go ahead and do it. The chances of getting caught or even being suspected deters most honest people. A disgruntled employee is likely an honest person.

      Think if it as the locks on you car. The glass windows won't keep a determined person out. But it will keep the majority of people from getting in. You are more likely to have you car stolen by leaving the windows down and the keys in the ignition then you are with taking the keys out and locking the doors. But if someone wants it bad enough, the keys, locks, windows, alarm, anything you do won't matter to them. But like the buildings, the vast majority of people will walk away. And most people will only think there are some landscaping tools or something in there of little value.

    5. Re:Bit o' Warning by Anonymous Coward · · Score: 0

      Wow, you're an idiot. They're changing the codes because people are leaving and should no longer have access. These people would know that the sticker indicates the current combination.

    6. Re:Bit o' Warning by Schraegstrichpunkt · · Score: 1

      It's not just about honest people. If you are attacking a system that's protected by a physical lock, defeating a lock means that you are more likely to be ignored by a third-party bystander if one happens to see you. That increases your chances of success.

    7. Re:Bit o' Warning by HydroPhonic · · Score: 1

      This created an entirely new problem: People forgetting access codes that changed every several months.

      If you rely on access codes, always have someone they can call for a code if they forget theirs. They would authenticate themselves to your office (or their office) and said office would read them their code.
    8. Re:Bit o' Warning by igb · · Score: 1

      Depends on how many staff you have. Every ten-fold increase in staff means you need an extra digit on the combination just to stand still. BT currently use a system that has a swipe-card and a PIN for each employee, and the lock is programmed with the swipe-cards that it will accept: that has the benefit that the safety of the PIN doesn't decline with staff-count.

    9. Re:Bit o' Warning by timmarhy · · Score: 1

      whats your point? that not all people steal things? bravo sir *slow clap*

      --
      If you mod me down, I will become more powerful than you can imagine....
    10. Re:Bit o' Warning by sumdumass · · Score: 1

      Maybe you should read the entire thread before showing the world how retarded we can be. The point is that a lock is a lock and as long as someone has to defeat one, it will keep the same amount of people out.

      Everyone else got this point and even added some insightful commentary to the mix. Hopefully you could too.

  4. Remote controlled lock? by DogDude · · Score: 0, Troll

    A remote controlled lock? Via Ethernet? In all honesty, that is one of the stupidest ideas I have heard in a LONG time.

    --
    I don't respond to AC's.
    1. Re:Remote controlled lock? by FooAtWFU · · Score: 1

      A remote controlled lock? Via Ethernet? In all honesty, that is one of the stupidest ideas I have heard in a LONG time. Hey. Our school has one of those key-card systems, where you can have a card to open the locks... or open them on a schedule... and stuff like that... and they do connect on Ethernet (they have their own virtual LAN, but anyway...)
      --
      The World Wide Web is dying. Soon, we shall have only the Internet.
    2. Re:Remote controlled lock? by Anonymous Coward · · Score: 0

      Insulting people? Via the internet? In all honesty, that is one of the stupidest ways to advertise for your pet store I have heard in a LONG time.

    3. Re:Remote controlled lock? by DogDude · · Score: 0, Troll

      Good for your school. What's your point?

      --
      I don't respond to AC's.
    4. Re:Remote controlled lock? by Anonymous Coward · · Score: 0

      Care to elaborate on why it's so stupid? Perhaps you're having a problem understanding what the OP wants: an electronic lock whose codes can be changed remotely via the network they already have to the sites in question. If they have to physically send someone out to reprogram the locks with new codes it's not much better than the physical keys they have now.

    5. Re:Remote controlled lock? by Anonymous Coward · · Score: 0

      when DogDude calls you out for being stupid, it's probably a sign that you're an idiot.

    6. Re:Remote controlled lock? by click2005 · · Score: 1

      If your internet connection/webcam server/any other point of failure has a problem, you lose access to your locks if they are controlled via ethernet.

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      I am a free slashdotter. I will not be modded, blogged, DRM'd, patented, podcasted or RFID'd. My life is my own.
    7. Re:Remote controlled lock? by mollymoo · · Score: 1

      Being remotely programmable doesn't necesarrily mean the lock needs to be connected to the network just to operate.

      --
      Chernobyl 'not a wildlife haven' - BBC News
    8. Re:Remote controlled lock? by sumdumass · · Score: 2, Interesting

      You need to think like in a house/door lock instead of a padlock. And then think of a security system too. I have a garage door opener that you input your code to open and the alarm stores who accessed what when for 30 days. But I can set up a code for a repair man or someone who I know will be coming over while I'm away and then delete/disable the code after they are gone. and my security system can be controlled by Ethernet or the phone from any remote location. (even viewing the cameras.)

      The Door in the kitchen coming from the garage is controlled by a set of really strong magnets and and hooked through the security system too. Once it is locked, you need about as much force necessary to kick a regularly locked door in to open it. But if the security code gave you access to the house, when you opened the garage door, it would unlock the kitchen-garage door too. Or you could open it separately with the same code on the keypad to the door.

      This is the type of lock/access he is looking for. One that can check the codes and have the codes changed from remote locations to allow someone to enter and then deny access as soon as they complete thier jobs.

    9. Re:Remote controlled lock? by Door-opening+Fascist · · Score: 2, Interesting

      We have an RFID-based card access system where I work. The local stations keep a log of all cards allowed on a particular door in the last six months, so it'll open the door for those cards even if the network is out.

    10. Re:Remote controlled lock? by Anonymous Coward · · Score: 0

      Perhaps the point is that you have a needle-dick?

    11. Re:Remote controlled lock? by Anonymous Coward · · Score: 0

      Uh... No. All I can say to that is: Thank goodness you don't design these systems.

      What is it that's so hard to understand about the difference between a remotely /programable/ lock versus a remotely /controlled/ lock? I agree - in most situations a remotely /controlled/ lock would be a bad idea but, with regard to a remotely /programable/ lock, what you're saying is something like, "After your locksmith re-keys the front door to your house, if he goes on vacation you can't open that door with the new key!" *sigh*

    12. Re:Remote controlled lock? by DamnStupidElf · · Score: 1

      The Door in the kitchen coming from the garage is controlled by a set of really strong magnets and and hooked through the security system too. Once it is locked, you need about as much force necessary to kick a regularly locked door in to open it.

      Too bad most thieves cut the power before trying to break in. You do have your cameras on a UPS and the video sent to a remote location in realtime, right?

    13. Re:Remote controlled lock? by sumdumass · · Score: 1

      The who system runs on DC with a bank of small security batteries. The cameras have the power feed through the cables and I suppose they go through the same DC control panel. Last time the power went out and the generator didn't kick on, the alarm company called me on the cell phone asking if everything was ok. They said they received the signal that the power was off but didn't get the signal from the generator (it is the lower type that runs on natural gas and is automatic)

      I'm under the impression they can monitor the house with or without electric except that I cannot connect to it (well though the phones) and they do their communications with it over dry-wire separate from the phone service. The IP address of the website I goto to monitor the cameras isn't my privat IP from my ISP. It is something the alarm company worked out. This isn't a role your own system. It came with the house and I pay for a service to have it monitored. It wasn't installed by brinks but the service is similar to it. I don't think cutting the power and phone lines alone is enough to defeat it. Now cutting a hole in the right wall and making a new door might. The motion sensors are only in a few places. there are switches in every door and window though. But the great thing about the motion sensors are that they can turn the light on and off when you enter a room which is convenient when your hands are full.

      I will ask about the video when the power is off. Like I said, There was only one time we lost power and the generator didn't fire up. And that was because we had some work done on the wiring in one of the computer rooms and the contractor turned the main breaker back on but neglected to turn the generators safety cutoff on. We had to install line conditioners for the generator lines because the power isn't as clean as it should be. We were seeing jumps from 100 volts to 130v and had a cycle of around anything from 40 Hertz to 65H. This causes problems with surge protectors, ups and computers. Anyone looking for a generator should consider spending the extra money on one already fit with a conditioner or just install on in the wall before you think about expensive stereos or computers.

    14. Re:Remote controlled lock? by DamnStupidElf · · Score: 1

      If you can afford it and the police have a reasonable response time, an alarm monitoring company is probably the best solution. Cutting wires won't help because disconnecting the house from the monitoring company triggers the alarm on their end (and maybe at the house, too) It would be interesting to know what infrastructure the alarm company uses for their wires. I imagine they could lease lines from the phone company, but for video it would tend to be rather expensive. Maybe they borrow frequencies on the cable system or actually did go lay their own wiring in the neighborhood. If it's an upscale neighborhood where everyone has an alarm, I would guess the latter. Wire all the neighborhood into one box and then pay for the T1 or other connection back to the main office and split the costs. Is the video from the cameras high quality, or small and/or highly compressed?

      Have you looked into running your generator during peak usage hours to reduce electricity costs? It would be interesting if natural gas ended up being cheaper than buying the electricity during that time. It sounds like the generator powers the entire house back through the existing wiring, which may mean that it's overloaded if you see voltage and frequency variations that high. Generally it should run right at 60 Hz unless it's under heavy load and can't keep up. I'm surprised that your UPS didn't like the voltage fluctuations since they're supposed to handle it as far as I know. They will definitely switch to running off the battery when the voltage or frequency goes out of whack, but should keep the battery charged from the wall power regardless.

    15. Re:Remote controlled lock? by sumdumass · · Score: 1

      f you can afford it and the police have a reasonable response time, an alarm monitoring company is probably the best solution. Cutting wires won't help because disconnecting the house from the monitoring company triggers the alarm on their end (and maybe at the house, too)

      It really isn't that expensive once the install and initial maintenance is out of the way. The monitoring is less then 30 bucks a months with some service fees for incidents. But the discounts on the home owners insurance bring this down to less then $5 a months when you factor that in. I think we get 5 or 10 incidents every 6 months without incurring the fees but after everyone figured out how to use it, we haven't used more then one incident a month for quite a while now and that is a liberal estimate.

      It would be interesting to know what infrastructure the alarm company uses for their wires. I imagine they could lease lines from the phone company, but for video it would tend to be rather expensive. Maybe they borrow frequencies on the cable system or actually did go lay their own wiring in the neighborhood. If it's an upscale neighborhood where everyone has an alarm, I would guess the latter. Wire all the neighborhood into one box and then pay for the T1 or other connection back to the main office and split the costs. Is the video from the cameras high quality, or small and/or highly compressed?

      I believe they used something called dry wire. I think it is an aluminum version of the copper lines the telco uses. I don't think there is enough speed to do full voice with out some VIOP compression or something. Think of it as something similar to ISDN. I'm not sure if all the companies use this but I saw it in the documentation when we bought the house a couple years ago. I remember hearing about dry wire a lot back when DSL was coming of age and companies were getting around the Telco's slow reception to DSL by using dry wire and the word was to avoid it if at all possible. I recently found that Att/SBC is running a hybrid fiber to the network distribution panels in local subdivisions (at least in my area of ohio). I wouldn't doubt it if they used fiber on new installs. But DSL is available now in areas once too far off the beaten track to consider the equipment necessary for it. I'm living in the country with hundreds of acres of farm land in either direction and have 3 meg DSL service now. My closest neighbor beside the other three houses in the cluster is a quarter mile away. Life is good here:)

      Have you looked into running your generator during peak usage hours to reduce electricity costs? It would be interesting if natural gas ended up being cheaper than buying the electricity during that time.

      The gas company in my area automatically switches you to commercial status if your usage goes so high. But I use gas heat and have a gas stove and dryer. It bills don't seem that bad, during this winter which was a little warm, My gas bills only came to $60 and the electric never got higher then $30. The electric goes up and the gas goes down in the summer when the air conditioner is on. I don't think I ever had over an $80 electric bill except for when I forgot to pay it. The house is small and well insulated though. And I try to use the compact florescent bulbs in most of the lights, We do a good job of turning them off when not in the rooms and I have a good amount of natural light during most of the day. there are retractable awnings over the windows that help shade some of the sun when we are cooling and of course I do the old 70's early 80's thing and set the thermostat to 68-69 in the winter and 75-78 in the summer which seems to help a lot too.

      In my old home, the bills were drastically higher but it was a lot older and not put together very well. So far, it seems like trying to lower them even more is more effort then it might be worth.

      It sounds like the generator powers the entire

    16. Re:Remote controlled lock? by RMH101 · · Score: 1

      Yes. These are great. However, they don't scale down well: *no-one* makes a decent lock of this type that is economical to buy in single digit numbers. You need the infrastructure to back it all up. Fine if you're doing a whole site, no good at all if you want a single lock.
      *ALL* the single-door electronic locks are junk, which is why use of them often invalidates your building insurance.

    17. Re:Remote controlled lock? by MoxFulder · · Score: 1

      Bingo. It's amazing how this post has already gathered about 5 threads of dimwits flaming each other over this very simple point.

    18. Re:Remote controlled lock? by housed09 · · Score: 1

      I'm with a startup called Edge Integration (www.edge-integration.com - sorry, our web site is pretty lame at the moment) building exactly the system everybody seems to be talking around. Coming from the database/web I have found the physical security industry is pretty backward and I just don't think there are many solutions out there for our friend with the POP sheds all over the place. We're a good fit for it and maybe Brivo.

      There are all sorts of quality electrified locks, decent means of authentication (Prox cards and readers are the most common and easiest to use) and systems that work well in locally managed situations. Getting rid of keys removes a big headache (not that Prox cards are perfect). The problem here is how to manage it all.

      The problem with most physical security is they are controlled over serial lines to a control panel in a central closet (each panel is usually designed for 8, 6 or 32 doors) and to manage it you have to run some old Windows program (I even saw one recently that was a DOS program). For individual POP sheds with one door this is overkill. A clever guy could wire the door up to a spare server, write a bunch of software and manage it all that way, but ... that's a lot of work, I know, that's what I've been doing.

      At Edge we are building a single door Controller (basically a PDA with special I/Os) to talk to the serial readers; manage the locks, buzzers, lights; and collect data from temperature sensors, pump switches or whatever else you want to connect. Our Controller manages its battery and happily works without external power or a network for as long as it can. Without network you can't configure it or see who is at the door, but if they have been authorized the door will still open. The Controllers talk to our server (we're an ASP model) so other than the little board a the door there is no "panel". All management, configuration, monitoring and upgrading is done over the network. The Controller calls out to us so there are minimal firewall/network issues to deal with. Users monitor and manage their doors on our web site, so it doesn't matter if the doors are spread across 20 POP sheds or in the same building. Naturally, you can define groups of doors and groups of users and map all kinds of schedules and permissions between the two. You can do ad hoc remote unlocks and scheduled uplocks. If the network is connected it takes about 3 clicks of the mouse and about 15 seconds to disable someone's access to a door. The web app will also let you know if a door is off network.

      Right now you can't get this wonderful system, but soon ... we have just begun installation into a few reference sites and will be showing up in some security integrator's inventories in the very near future.

    19. Re:Remote controlled lock? by timmarhy · · Score: 1

      hah, your giving most thieves WAY too much credit there pal. MOST thefts are thefts of oppertunity. scumbag X see's an open window and jumps in to see what he can steal. the most they will usually do is smash a window if they can see something worth the risk of the noise. My best mates a fed and even he has never known anyone to be that determined as to cut the power to a home to break in. you MIGHT need to worry about it if you house something obviously vaulable.

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  5. Best lock for the money by Anonymous Coward · · Score: 2, Funny

    Here is my preferred electrical door lock in action. Never had a problem with a burglar yet.

  6. Only a door lock? by Timesprout · · Score: 5, Funny

    I have a complete electronic defense system for my home and I am currently upgrading the AI. It was slow going at first, the AI kept requesting to be given a name. Eventually i gave in and called it Skynet and things have been going quite well, although the Asimo I hooked up to it does like to chase me round the house a lot trying to taser me. I am going to ask one of my mates at the NSA if one of their global domination scenarios can connect and defeat it as a final acceptance test. Should be cool.

    --
    Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
    What truth?
    There is no dupe
    1. Re:Only a door lock? by UnderDark · · Score: 3, Funny

      I'm sorry, but I can't do that Dave.

    2. Re:Only a door lock? by elrous0 · · Score: 1

      I have a friend in Russia with an equivalent system in his home. I'll give you his number and maybe you can arrange it so that your system and his can have an interaction. Couldn't hurt, right?

      --
      SJW: Someone who has run out of real oppression, and has to fake it.
  7. Can you have the locks keyed the same? by astrashe · · Score: 1

    Is there some reason you can't just have all of the locks keyed the same?

    Any locksmith should be able to do this for you.

    1. Re:Can you have the locks keyed the same? by MeanMF · · Score: 1

      Kind of a pain if the wrong person gets their hands on a key....

    2. Re:Can you have the locks keyed the same? by itwerx · · Score: 1

      Is there some reason you can't just have all of the locks keyed the same?

      A - they probably have different equipment in different locations, some of which they may not want everyone to have access to
      B - when somebody leaves the company they have to rekey every darn one of 'em!

      (Yes, there are mastery key configurations which work around some of the above issues but the additional overhead probably makes it a wash in this case)

      Back on topic: despite recently announced security flaws, HID actually makes decent card-key equipment. If you have a ton of money and the technical wherewithal to work around the (to my knowledge as-yet-unpatched) security issues their system will do exactly what you want.

    3. Re:Can you have the locks keyed the same? by Big+Bob+the+Finder · · Score: 1

      With some high security systems (Medeco, Assa, etc.), it could be written into the contract that unless all keys were returned at the time of departure from the company (or upon request by a supervisor), it was possible to withhold a deposit or the last paycheck of a departing employee to defray the expenses of re-keying the locks.

      This was from a long time ago, when I worked as a locksmith. I have no idea if it's still legal to do so.

    4. Re:Can you have the locks keyed the same? by Captain+Splendid · · Score: 1

      despite recently announced security flaws, HID actually makes decent card-key equipment. If you have a ton of money and the technical wherewithal to work around the (to my knowledge as-yet-unpatched) security issues their system will do exactly what you want.

      Talk about damning with faint praise.

      --
      Linux, you magnificent bastard, I read the fucking manual!
    5. Re:Can you have the locks keyed the same? by Anonymous Coward · · Score: 0

      And they make copies of the keys before submitting their resignation...?

    6. Re:Can you have the locks keyed the same? by Big+Bob+the+Finder · · Score: 4, Informative

      With high-security systems, the blanks are under patent. Only locksmiths who service those locks have access to them. With most systems, you end up with regional distributors, and if you walk in asking to get a copy made, they'll recognize it as one of theirs and confiscate it- and inform the true owner of what happened. I've actually seen that happen- it's pretty unfortunate for the guy working for a major bank to lose his job over that sort of thing. They can then mike the key and determine whose it is; if it is stamped with a serial number, it's even easier.

      All bets are off if a machinist is available to duplicate it. This is made very difficult with sidebar locks such as ASSA, or with odd keys such as Abloy. A machinist would also have to duplicate the wards and angle cuts if duplicating Medeco keys.

      So while the possibility is there, I have yet to hear of it happening.

    7. Re:Can you have the locks keyed the same? by Propaganda13 · · Score: 1

      C - if a vendor tech needs to access at a remote location, they can give them a temporary code for access
      D - tracking who accesses a location, checks for unauthorized access by employees and use of codes by someone else

      Just a reminder
      With remote locations, good locks can only do so much since criminals have a lot more options.

    8. Re:Can you have the locks keyed the same? by FLEB · · Score: 1

      Hmm... so that's why they couldn't dupe the Medeco key from my old apartment. Nothing nefarious, I just lost the thing and it cost $25 for a replacement.

      --
      Information wants to be free.
      Entertainment wants to be paid.
      You just want to be cheap.
    9. Re:Can you have the locks keyed the same? by ivan256 · · Score: 1

      Right, because people don't have access to home CNC mills, and the casting of brass is still secret after all these decades. In a pinch, even Dremels suddenly stop working when they realize they're duping a "patent" blank. And there's no such thing as a locksmith who would dupe a "Do not duplicate" key for a few extra bucks... They're not the greedy, secretive type. They all talk to each other and this would get back to the owner of the original in no time...

      There's fantasy and there's reality. In reality, people change their high security locks when somebody loses a key because it is almost trivial to get any physical key duplicated.

    10. Re:Can you have the locks keyed the same? by pla · · Score: 1

      if you walk in asking to get a copy made, they'll recognize it as one of theirs and confiscate it

      Two questions...

      First, can they legally do that? Depriving someone of their posessions without permission or a court order generally counts as "theft".

      And second, how do you get new keys made, if you can't get them copied?



      A machinist would also have to duplicate the wards and angle cuts if duplicating Medeco keys.

      Has this Medeco company ever heard of "clay" and "casting resin"? It wouldn't live up to heavy use, but anyone, with $10 in supplies and willing to wait overnight, can duplicate an arbitrary solid 3d object. Hollow 3d objects take more work, but still doable with multiple molds and the magic of superglue.



      As an aside (slightly different issue, but related), I've had plenty of "normal" keys engraved with "do not copy" copied - The clerks at Home Depot wouldn't care if the thing said "Missile Silo B Launch Control" on it.

    11. Re:Can you have the locks keyed the same? by timmarhy · · Score: 1

      right, because if someone tried to take a key off me i wouldn't jump across the counter and pop then right in the nose.

      --
      If you mod me down, I will become more powerful than you can imagine....
  8. S&G, HID are standard by mlts · · Score: 4, Informative

    Most companies I see use HID or S&G for card access. I personally would recommend HID (one of their newer card reader lines that use two-way authentication).

    For mechanical lock backup, go with Medeco, Mul-T-Lock, or Abloy. All of which are immune to bumping, are restricted in key duplication, but keys are still decently available when you need copies made at a locksmith with your card.

    Lastly, if you want a solution that is a hybrid, requiring only cylinders changed rather than lock hardware, you might consider the Mul-T-Lock CLIQ series. The CLIQ keys are mechanical and electronic, and the reader is in the cylinder, so no wiring of doors is needed. To remove a key from the authorized list, you just code the programmer key to remove it, then walk around and stick the key in the appropriate doors.

    1. Re:S&G, HID are standard by numbski · · Score: 1

      I googled a bit on what you said. I went looking a while back for a solution that would allow me to put either RFID or biometric data into LDAP and then have biometric scanners at each door (fingerprint probably).

      I'm finding it difficult to find a solution. Once upon a time I had a bookmark for a vendor that sold component parts - strikes, latches, dead-bolt, fingerprint scanners, rfid scanners and cards, etc. Can't find it now. Ideally I'd like to put fingerprint signatures into ldap, use a central system for it all so I can create an LDAP group (say, data center) that allows certain users into the data center, and "front door", which more or less everyone is in.

      Perhaps I'm over-simplifying what needs to be done?

      --

      Karma: Chameleon (mostly due to the fact that you come and go).

    2. Re:S&G, HID are standard by innocent_white_lamb · · Score: 1

      How do these handle cold weather?
       
      Batteries tend to go dead in -40 degree weather, so if you're locking an unheated shed in the winter, where do those things get their power?
       
      In fact, I wonder if they work at all in extreme cold, even if they are locking a heated building.

      --
      If you're a zombie and you know it, bite your friend!
  9. how about... by Anonymous Coward · · Score: 0

    How about an access controlled door whose panel can report back by LAN/WAN back to the server? All you would need to do at the point that someone leaves the company is disable the card. Then you wouldn't need to deal with keys. The Topaz http://www.gesecurity.com/portal/GESDownload?ID=29 91&DID=16883&documenttype=Data%20Sheet system should work nicely.

  10. From a locksmith's perspective by Big+Bob+the+Finder · · Score: 2, Informative

    I worked my way through college as a locksmith. I've always favored hardware security (keys) over electronic widgetry. Talking to a Medeco dealer about getting your locks on a solid masterkey system would give you a solid system, but allowing remote sites to be accessed- possibly by different agents each time- wouldn't work.

    One solution might be Videx. I've only glossed over their literature, but they seem to have a pretty good solution in place.

    http://www.videx.com/products/detail/cyberlock.h tml

    Specifically, the section on how "the CyberKey Authorizer enhances CyberLock systems by providing the ability to program and download CyberKeys at remote locations." That might be too pricey for your application. I've never priced out "door" costs on Videx hardware.

    1. Re:From a locksmith's perspective by kah13 · · Score: 1

      Videx is popular in hospitals for high-abuse keys (like Code Blue keys for elevator overrides) and for remote gate keys in places such as airports or nuclear plant where loss of a key would have tremendous implications unless you can make sure the key will expire in a short period of time or can be quickly override.

      The cost is high, IIRC around $400/cylinder, and the keys aren't cheap. However, I find the idea clever and it's nice to have a system you can just do drop-in installations for.

      Unfortunately, it doesn't seem to fit your requirements.

  11. How to do the keypad by mrcaseyj · · Score: 3, Insightful
    I was thinking of putting an electronic lock on my door. One of the problems is that if there is someone near that you don't completely trust they may see you entering the combination. My cousin shoulder surfed my password once so I'm a little paranoid about this sort of thing. You can move to block them from seeing you enter it but that can be insulting to your guest. That's a significant issue for someone like my grandmother who may be entering her combo in front of customers she doesn't want to offend.


    So I'm thinking that the way to do it is to have a keypad facing down so that you curl your fingers up to push the buttons so the person near you doesn't see. I figure having only four buttons would make it easier to enter the combo without looking. Buttons on the bottom would also have the advantage of keeping water out of your buttons.


    One of the reasons I wanted a combo was I figured it would also be a lot faster than pulling the key out of my pocket every time. In fact I think a quick combo lock would be so quick that it wouldn't be too much trouble to just leave the door locked all the time.


    Some other good features for the lock would be different combinations for everyone in the house. And some one time use combos and guest combos.


    By the way if you are hiding a key outside your house make sure you put it around the corner or something so if someone is with you then you won't have to reveal your hiding place.

    1. Re:How to do the keypad by hazem · · Score: 1

      That's a significant issue for someone like my grandmother who may be entering her combo in front of customers she doesn't want to offend.

      Nobody should be ashamed by keeping secure things secure... and nobody should be offended when somebody else tries to do so.

      It's just like I shouldn't be ashamed to go behind a door to "adjust the hardware"... and nobody should be offended that I do so.

    2. Re:How to do the keypad by jimmyswimmy · · Score: 4, Interesting

      I used to use a system much like you describe. I used to work at a major international airport, which secured some private areas from the public with a cipher lock. It had rocker buttons, five of them, at the bottom of a metal "butter tub". You could stick your hand in there and look inside and see the labels on the buttons, but once you'd seen it once, you didn't need to look again. The rocker buttons were centered and if you press one way it might be a '1' and the other way was a '6', I think.

      A more interesting system was on the front door to my office - a 9-digit keypad where the numbers were lit up in a dot-matrix format. You could only read the numbers standing in front of it, and they would change each time you walked up to it. It was very cool, but they stopped using it in favor of ethernet-programmable fingerprint readers.

      There are a lot of options. The tougher part is weatherproofing any of these solutions. The more fancy electronics you have, the more important keeping water out becomes. Good luck!

      --

      Just my $0.55 (US inflation, 1774-2008, for $0.02)
    3. Re:How to do the keypad by dextromulous · · Score: 1

      ScramblePad. I've heard they're around $500 though :-(

      --
      There are two types of people in the world: those who divide people into two types and those who don't.
    4. Re:How to do the keypad by dgatwood · · Score: 1

      This may sound somewhat smart-alecky, but weatherproofing is easy if you don't put it outside. :-) Build a two foot extension off each door. Use an exterior door with the lock disabled for the outside of the tunnel. After opening the outer door and walking in a foot and a half, you have access to the keypad or other similar device.

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    5. Re:How to do the keypad by ivan256 · · Score: 1

      It was very cool, but they stopped using it in favor of ethernet-programmable fingerprint readers.


      How long until they gave up on the fingerprint readers?

      My experience with fingerprint readers, regardless of brand, is that they just plain can't handle people with dry, cracked skin. If you wash your hands or wear gloves a lot, they just don't work. Usually you see fingerprint locks go in, and then they're back to PIN or prox card locks within a few months.
  12. KABA-ILCO by Anonymous Coward · · Score: 0

    http://www.kaba-ilco.com/access_control/index.aspx

    No, I don't work for them, but I use them.

  13. Electronic Locks by Anonymous Coward · · Score: 0

    This depends on where your systems (equipment sheds) are, whether they are all wired or wireless, whether you want your database centralized or de-centralized. In other words, there are a lot fo variables, and some great answers.

    Feel free to email me. I work for a company that handles access control, video security, etc. We manufacture our own solutions, and work through integrators (if needed) for installation.

    Joshua
    Jmarpet@dvtel.com

  14. Your an ISP... by Anonymous Coward · · Score: 0

    Oh great, advice from someone who doesn't know the difference between "your" and "you're".

  15. Why not pay "SOHO Geek Pads" to Watch them? by ivi · · Score: 1

    For a long time, geeks have come to share homes (eg, Open Sourcerers, who perfer lower living costs, et al.)

    We can envision techie villages, bringing together a mix of renewable energy geeks with al the other geeks, onto a modest sized property,
    away from the smells & noises of cityscapes, within commuting distance, but closer to nature & its beauties, maybe with windows looking out over nothing but natural sights & sounds (if the windows are opened ;-)

    It the coming WiFi (WiMax & beyond) days, such villages might be happy to keep a near-constant watch over remote ISP facilities, either for $'s or some extra bandwidth.

    There would possibly be problems with trust, but there always are.
    (Insurange could be the ISPs workaround, if they were to get stung.)

  16. Double tier and steppers by Anonymous Coward · · Score: 0

    Depends how handy or rolled you want this. I will assume you already have remote reboot/power ability at the colo-like locations, such as Baytech or WTI equipment.

    Simplest method would be to hook up a stepper to the inside lock handle. You're talking a $10 piece of aluminum machined to fit a standard lock handle (i.e. deadbolt throw), wiring a stepper to a parallel port or using a serial to stepper driver adapter, and picking up some surplus drivers and motors on ebay.

    Guy wants in, gives you a call, you open the door remotely remotely by logging into the machine that controls the stepper. Add webcams, etc. as needed if you want that sort of authentication, or to confirm the lock has turned to the appropriate position (or needs to turn more). Or, have a standard login/pass interface, any authentication network method you prefer (VPN, one time password, etc.). A tech could be standing in front of the door, use a laptop over a cell network to submit a one time password, and have the lock open.

    You could even have a wireless router or ethernet port at the location for direct plugin; just make damn sure that it's suitably protected (i.e. VPN only, firewalled to a separate on machine nic that rejects everything except IPSEC or something).

    Note that depending how you set this up, your driver has to be powered; this is a good thing--wire the stepper driver into your power management *separately* from the machine (so the machine power on/off is controllable as well as the driver), and you can have some additional tricks to use, i.e. someone can have the password to open the lock, but not the power management password, so you can turn off the stepper driver completely while you reset or implement new lock controlling passwords. This will also save energy; no need to have the driver sucking power holding position of the lock once the lock is set. And, if the stepper gets broken or stuck, powering the driver down will allow unpower the stepper so you can use a regular key.

    If the power goes out completely or if the power management thing fries, no power means again unpowered stepper driver and hence the motor, allowing it to turn freely; it stays in the position it was last at too (since it's a stepper controlling a regular lock, it acts like a regular lock, meaning it doesn't change position just because the poewr goes out).

    For redundancy (primary network down), you'd need a separate network of some sort (extent depends on what you want to accomplish). You'd could add a port to your router to control the power management equipment--a hub, ethernet switch, etc. that's separate from your main, and allow an access point in (wireless, direct ethernet, redundant to cell phone access, backup network) and secure as you deem fit, e.g. your choice of authentication method. If your network hoses itself, just reboot the network (not the system) equipment with the failover (i.e. cell network) and use whatever local login access you deem fit as you would standardly after. A simple method is to have your emergency network first (coming from the electrical outlet) that has limited scope.

  17. Here is your solution by Anonymous Coward · · Score: 0

    ...and it's so clever, I wish I thought of it. You need a lock that doesn't need a card-key and yet can be reprogrammed remotely, without AC power or internet connectivity.

    webkeysystems.com

    I only discovered this yesterday!! It uses an algorithm to generate a 6 digit key, that embodies the dates the key is valid. Basically, it's like public key encryption. Create keys on the fly, for just the period you need someone to access.

    The only downside is that it's not true reprogramming of keys. You can't cancel keys, for example. In other words, if you give someone a key for 30 days, you can't cancel that key during the thirty days.

  18. Avoid Chubb by humberthumbert · · Score: 2, Interesting

    Whatever you do, avoid Chubb like the plague.

    The "brains" of the system run on useless software that will not work without a hardware dongle. Check before you buy, I'm sure there are plenty of vendors who pull the same shit out there

    Also, are you SURE that a keypress box (lockable box with hooks for hanging keys) won't do? When I was in the military, that's what we did. Never had a problem as:

    a) We exchanged keys for identification (no ID, no key!)

    b) If you lose the key or run away, we have your id, and we will hunt you down.

    With a well-kept logbook, you cannot go wrong. Not to mention, no dicking about auditing whose keycard has access to which area when. If the key is missing from the keypress box, someone is using it. If it's missing after the official visitor hours, you have a problem. Scales pretty well up to a few hundred keys.

    Of course, make sure you buy decent locks. Also, someone could always try to forge the keys. But that's what armed escorts are for.

  19. Take the physical characteristics into account. by Anonymous Coward · · Score: 0

    I would take a strong magnet with me and see if the look can be opened with it. There are in fact many locks which can be opened this way without having to resort to hacking the electronics. This is an inherent flaw of them as they rely on solenoids to open the lock. This can only be overcome by strong magnetic shielding or by placing the solonoid in a direction so that - when attracted by a magnet - locks the lock, rather than unlocking it.

    Also important is how hard it is to dismantle the lock to get to the solenoid (in order to apply a current to open the lock).

    Do yourself a favor and don't buy into marketing babble or feature lists. Encryption does not help here.

  20. ThinkGeek RFID Digital Door Lock ? by KlaymenDK · · Score: 1

    I have had my eye on the RFID Digital Door Lock from ThinkGeek for quite a while now.

    It's easily reprogrammed, you can issue access cards to persons as opposed to giving out a single PIN. Plus, it's supposed to be hack-proof, but probably not to the level of Sargent & Greenleaf.

    I am considering it as a replacement for the lock in my flat's front door (which is arguably both less and more critical than an ISP gear shed). It's indoors, so weatherproofing is not an issue, but the flat is just rented so I can't really put any big holes in it...

    Does anyone have experience with, or otherwise comments about, a lock of this type?

  21. Do the swippy card thing by JumperCable · · Score: 1

    Add & remove access on the fly.

  22. You know, it's funny by way2trivial · · Score: 1

    while reading the first line of your 'utopia' I was immediately already envisioning the fourth & fifth word in your third line, but in a completely different expectation.....

    --
    every day http://en.wikipedia.org/wiki/Special:Random
  23. Access Control system by Anonymous Coward · · Score: 0

    This really is a classic access control problem.

    There are 3 components to this normally. An physical locking mechanism such as a magnetic lock, an authentication mechanism such as a card reader and a controller.

    There are numerous comments from people about 'if the network fails then you cant get in' which might be true with a simple little homebrew system but any commerical system uses the network only for programming. The actual door controller is self contained and operates without any need to talk to the computers. The only problem loss of network causes is that you cant revoke cards or issue new ones until you get the network fixed.

    Some example controller manufacturers are http://www.honeywellaccess.com/, http://www.paxtonaccess.co.uk/, http://www.lenel.com/ amongst hundreds of other.

    For card readers I always recomend HIDs iClass system - http://www.hidcorp.com/products/iclass/. These are smart cards and are substantially more resistant to the card cloning that has been mentioned before. They can also include things such as retina information and fingerprint profiles on the card. This avoids having to program readers on site with these things and also means that you never actually keep the users biometrics on file. They are only ever stored on the card.

    As for locks... Too many to mention. I prefer solenoid locks that protrude a solid bolt into the door as these are far more difficult to force. Many cheaper maglocks can be forced by a solid kick to the door. I really depends on the door.

    AC

  24. Careful with upgrades... by Bazman · · Score: 3, Funny

    Our recently refurbed admin building ("Hey! When are we plebs going to get our leaky windows replaced??") had its grand opening the other day, complete with University bigwigs and minor royalty. The day before it seems someone decided to upgrade the security system firmware.

    When they did this, there was nobody inside. And they locked themselves out. They figured if they set the fire alarm off then the override would fling the doors open. But it didn't. They had to get someone in to smash through the security door to a) get inside and b) stop the fire alarm.

    I imagine all the mess was cleaned up before the princess arrived.

  25. Check out this company by RussoS · · Score: 1

    Check out Computrols, Inc. They have programmable keycard locks that work over ethernet. Different card can access different zones and its all programmable from one head end unit. http://computrols.com/security

  26. What the brochure says... by joto · · Score: 1

    ...is, as you have concluded yourself, completely useless.

    Basically, you should go for the system that is easiest for you to manage. All electronic locks (and all locks in general) are easy to break, if you want to. Quite surprisingly, the more expensive locks, are often easier to break (it can be done with a screwdriver instead of a crowbar (or if your doorframe is better: power tools). And if the lock is better than that, there are always windows, or even walls.

    If what you need is security, you need more than one lock to keep the bad guys out. And remember that the people most likely to break in to a better-than-average secured building is either the owner or people hired by the owner (insurance fraud); or employees or people hired by employees (or ex-employees). Your job is to not make it worth the risk. A local security company can also help with alarm systems and routine inspections. And remember the rule above, everyone, including security personnel, cleaning personnel, and so on, constitutes "employees" from a security standpoint.

  27. geek's kibbutz? by morethanapapercert · · Score: 1

    Sound's like the geeks version of the Kibbutz
    A small circle of friends and myself have been seriously discussing and investigating the myriad details in setting up something along those lines for ourselves. Thus far, the most compelling arguments in favour of it are the economies of scale and the various grants, tax breaks and other incentives we may gain, depending on how we are structured. The strongest argument against it has been the possibility of serious personality conflicts long term. Even setting aside the hopelessly flawed "Free Love" communes of the early '70's; experiments in communal living in North America have, at best, a patchy record of success.

    --
    I need a wheelchair van for my son. Help me get the word out. https://www.gofundme.com/wheelchair-van-for-jj
  28. Saflok by sheddd · · Score: 1
    I work at a hotel and put Saflok locks in ~350 rooms. ~$100 per lock, nothing super secure, but cheap, and you can have keys that open whichever locks you specify, and you can see which key(s) opened which locks and when.

    Of course, with a $10 tool, you can open the locks, but I bet the same could be said with your current locks.

    1. Re:Saflok by couchslug · · Score: 1

      "Of course, with a $10 tool, you can open the locks, but I bet the same could be said with your current locks."

      An intrusion detection system would be a Good Idea too. :)

      Unless the doors are something special, anyone desiring entry can use a (good) cordless holesaw/drill/sawzall and just slice out the lock/frame/whatever.

      FWIW I use a cordless 28-volt Milwaukee Sawzall to cut pickup truck frames in half when making trailers. Their cordless drill will cut heavy sheet metal using a good holesaw, and does a fine job of spinning abrasive cutting wheels on a mandrel when snipping rear axle U-bolts. This isn't a Milwaukee commercial, but anyone wanting security should consider the door and frame as well as the lock.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
  29. locks by Anonymous Coward · · Score: 0

    Change your exterior leverset handles to accomote an "RC" Removeable Core keyway. Have this keyed to operate under your existing masterkey system. Have differently keyed cylinders pre-keyed for all of the openings that are accessible by this employee so if/when they leave someone in maintenance or the subcontractor you have for attending to these sheds change the cylinders so the old key does not work but the lock will still accept the higher-level masterkeys. Take the old cylinders and have them rekeyed with a new pin combination that will still work under the masterkeying system, so they are ready for the next turnover. In other words, the cylinder is changed quickly without having to re-key the cylinder on the spot. This still will require a reasonable level of mechanical aptitude, and a visit in person, or possibly subbing to local locksmiths, if your coverage area is too wide spread to send someone cross-country.
          The existing locks you have on the doors should be able to remain in place, the outside lever and cylinder are the only parts that would need to be changed. When you change the cylinder, a long custom made key is used to pull the existing cylinder out of the leverset without unscrewing the whole thing and to put a new cylinder in.

  30. certainly not the ones used in by seanfast · · Score: 1

    certainly not the ones used in Jurassic Park... I know I don't want to overpay for some expensive door lock that some velociraptor can open when the power goes out...

  31. Videx CyberLock? by Radon360 · · Score: 1

    Here's something a little different than the typical swipe card systems that all have to be connected back to some central control:

    Cyberlocks

    We use these where I work and it's a great retrofit when you have multiple builds, including ones that don't have any electrical power. Basically, you have electrical lock tumblers that you replace the mechanical ones currently in your door handles. The key supplies the power (no batteries in the locks to change). When the key is inserted, it powers up the tumbler. The key and the tumbler do their digital handshaking (Key says: "I'm key number 12345" tumbler checks its programmed list and sees that key 12345 is on it and says "Okay, I'm unlocking the door" and mechanically unlocks the tumbler).

    Pretty interesting system with a lot of configuration options. Depending on how you set up the configuration, it's a little more involved if someone loses a key, but you can reprogram the tumblers fairly easily with a programming key, and you can set them up to permanently disable key 12345 if it is considered lost/stolen.

    Not hackable? Hardly. But then again, so are mechanical locks. This system gives you an electronic equivalency of security that you have with the mechanical locks, plus with a more flexible method of key control and access.

  32. Using iButtons as keys by lbates_35476 · · Score: 1

    I can't speak to the security of these locks but they might be worth a look. You unlock them using the Dallas Semiconductor iButtons. Each one has a unique serial number imbedded it it and it can't be copied. We've sold these peoples timeclocks and they have worked well. They also have a line of locks that sound like they might meet your needs. http://www.accesspilot.com/

    1. Re:Using iButtons as keys by mmontour · · Score: 2, Informative

      You unlock them using the Dallas Semiconductor iButtons. Each one has a unique serial number imbedded it it and it can't be copied. A serial number certainly can be copied. Relying on it for security is like relying on MAC-address filtering on a wireless router (i.e. insufficient). You can't copy the serial number onto another iButton, but you can program a little microcontroller to speak the same 1-wire protocol and pretend to be the iButton interest. It's not hard to discover the serial number of an iButton; it's printed right on the case of each device.

      There used to be a "crypto iButton" that provided real copy-proof security. It could be programmed with a private RSA key, and could be challenged to produce a signature that you could then verify with the user's public key. The physical device was quite tamper-resistant so it would be very difficult for an attacker to extract the private key. However this product seems to have been discontinued a few years ago.
  33. Mechanical and Electronic by mulvane · · Score: 1

    Another solution I have seen to a very like issue is having a secure door lock like the medlock that don't open the door itself, but the bolt triggers an electric trigger built in the door with battery backup for power outages that will cycle the lock mechanism. Then also, a keypad combo lock tied into a central server that will also trigger the lock mechanism. This provides secure mechanical and electronic access in best and worst case scenarios.

  34. manual not electronic? by pbjones · · Score: 1

    If the reason for attending the site is a power or backhaul problem, be careful which electronic lock you buy. It would be a shame if no power meant no access.

    --
    There was an unknown error in the submission.
  35. mag cards by timmarhy · · Score: 1

    mag casrds are your answer. you can remotely program the cards and there's no problem with opening the door if the network goes down at the site. they are also dirt cheap and can be set to expire so it doesn't matter if the tech loses it. video survillance is also a good idea.

    --
    If you mod me down, I will become more powerful than you can imagine....