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  1. Re:Oh, gag me. on Why Engineering Freshmen Should Take Humanities Courses · · Score: 3, Informative

    I'm a well paid computer scientist and I've never used calculus. Why does everyone need calculus? It doesn't particularly help you understand the news.

    They should have taught you using real-world examples. Calculus is a fundamental requirement for Physics and Engineering students.Algebra and Calculus are the most appropriate math courses to require for someone studying a non-Mathematical field.

    And in computer science; people doing mathematical modelling.

    Computer scientists should be taking classes in applied discrete maths though.

    They should take the Calculus class, not because they need it for math exposure, BUT to avoid missing out on what worldly people in other fields have to learn -- the computer scientists get the really in-depth math exposure through the discrete mathematics studies such as Statistics, algorithms analysis, studies of the subjects such as linear algebra, quaternions, permutations, modular arithmetic, discrete optimization problems...

    Calculus is required as a foundation to understand some things in Statistics that matter to computer scientists.

  2. Re:What could possibly go wrong? on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    Why not just scan and 3d print it?

    It would be a sure way for the kiosk operator to get sued into bankruptcy.

    Anyways; a 3D printout is low-quality stuff; would not really be suitable for use as a permanent key. Perhaps a key intended to be used for a short term period, at best.

  3. Re:It could work securely on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    where a human looks at a picture of the key to see if it's marked "do not duplicate"

    Even at places where a human dups the key; there is no checking if it's marked "do not duplicate". They want your business, and there is no law against duplicating a key just because it's marked do not dup.

    You don't even have to explain yourself or anything --- as long as they can duplicate it they will. They want your business, and they want you to be a satisfied customer.

    Unless the keyway is restricted; and therefore, the key not duplicatable (Because the copany can't buy the key blanks to be able to dup it).

    In that case, still, you may be able to order the key blanks on your own -- and then take your do not dup key, along with the valid blank of the proper type, to the hardware store, and get them to make a copy of the key using your supplied blank.

  4. Re:It could work securely on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    If you happen to have a normal house key marked "Do Not Duplicate", and you really want to duplicate it anyway, ten minutes with some sandpaper will take care of that problem, and then any random locksmith will do.

    You can stamp any key with "Do not DUP"; there's actually an inexpensive tool for stamping a key with that. And "Do not dup" is frequently used by businesses, even with many off-the-shelf key blanks.

    Furthermore. The message is advisory to the holder of the key. The hardware store, walmart, etc, will be happy to duplicate the key, as long as the blank is common and readily available, AND in some cases even when not, if you supply the blank.

  5. Re:Don't kid yourself. on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    Heck, you might be better off with no lock so that your nemesis might be enticed to expose themselves to your motion-detection/surveillance systems.

    I hear the unlocked front door; with false floor behind and an alligator pit directly below work wonders.

  6. Re:Public keys on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    Could this be the first case of public key encryption getting broken?

    No... public key encryption would be: You leave a key on your front porch, however: that key is only capable of locking the dodor.

    You keep the secret key inside, or in your pocket ---- your secret key can unlock your door when locked with the public key.

    You only lock the door with the secret key, if you need to prove that you are the homeowner -- because when locked with the secret key, only your public key can unlock it.

  7. Re:What could possibly go wrong? on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    I would love if they kept copies of my keys in their database.

    Just roll the cost of a lock change in the new-tenant checkin procedure; now you have an excuse.

    Come to think of it... why not bill a lock change cost both at check in, and at check out?

  8. Re:What could possibly go wrong? on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    So you and the victim go on a road trip to City B. Find a excuse to borrow the keys and fill up the gas tank at a 7-11. Transmit the data to City A where your accomplice makes the key and does the crime.

    Once you have possession of the key, you just take certain pictures with your camera phone, and write down the numbers.

    There are online services that will be more than happy to cut the key and ship it.

    I suppose what happens with the Kiosk is it lowers the bar. Now a 10 year old will be able to pull off this crime without any understanding about how keys work, and without a CC or requirement to ID themselves or interact with a person to possibly raise some suspicion.

  9. Re:What could possibly go wrong? on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 2

    I also see landlords not liking this technology.

    The commercial apartment owner probably has little to worry about -- these kiosks are most likely not going to be able to duplicate keys to operate Best Lock / SFIC core types; there are also restricted keyway systes they may be using such as Arrow Lock, MUL-T-LOCKs, Schlage Everest, Abloy, Medeco, or BiLock keyways.

    Commercial appartment complexes, schools, and large businesses use key management systems that sometimes leverage high security locks which often contain some important features such as key control -- keys cannot easily be duplicated, except by the specific locksmith responsible for that particular installation, who has the right hardware whose sale is restricted to authorized contracters.

    Generally; they keyway of a restricted keyway high-security lock as well as the format of the key is patented; and restricted sales channels are used to control the distribution of the key blanks (key blank control), in order to prevent unauthorized duplicates.

    Typically; each locksmith will have their own unique serial number and "serial number" pre-encoded on their key blanks (So that essentially, they are only able to cut keys for locks that they sold), and each legal owner will have an ID card.

    Without the ID card, and driver's license matching the name on the ID card; none of the locksmiths allowed to order blanks or locks are allowed to dupe the key.

    Also; the use of patented key designs, means that no other company can legally duplicate it -- therefore, they cannot legally produce a blank, or mill the keys required

    The only unfortunate thing there, is patents have a limited duration -- and the governent has not yet seen fit to extend protections to restricted key designs.

  10. Re:What could possibly go wrong? on Robotic Kiosk Stores Digital Copies of Physical Keys · · Score: 1

    Using a key leaves no evidence and may not even raise suspicion should anyone see you do it.

    Until the burglar alarm goes off.

    This is what insurance for, though. Both ways of a thief getting in are what insurance is for.

    I don't think I would want my neighbors to endanger themselves by approaching the scene; so i'm not necessarily sure if it's better for people's suspicions to be raised, except that the thief might be more likely to get away with no witnesses, if they don't raise suspicion...

  11. Re:Sony Hackstation on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 1

    The Mac Mini isn't adequate do page layout workflows with a low voltage i7 inside of it - there's absolutely no chance whatsoever that a 32-bit ARM core can do it.

    You mean today's 32-bit ARM cannot do it. Tomorrow's 64-bit ARMv8 will pull it off.

    More and more; the iPad, and eventually the ARM Mac air will be the content creation devices.

    I see in the shorter term, 'content creation' professionals being pushed towards the Mac pro; with possible discontinuation of the iMac and Mac mini as well; with any of its popular server functions such as file sharing replaced with purpose-built appliances; a different product for each desired function, like the Apple TV, Time capsule, Airport Extreme (in other words; point solutions).

    If you require a large accurate display -- iMac + Apple thunderbolt monitor (since there will be no VGA ports, anyways).

  12. Re:unfiltered my ass on Google Fiber Adds 14th City: Lee's Summit · · Score: 1

    where it lauds Tim Berners-Lee for having been able to invent the world wide web on top of the internet protocol "without having had to get permission from any government or network authority"

    Yeah well... Tim Berners-Lee did not do this for free. And CERN was not buying a cut-rate residential service; if anything, they were paying business and above rates for their telecommunication services, which did not restrict their use --- but they paid for every amount of resource that was available to use to them.

    The way networking works, no one user can destroy the network. It's a shared resource.

    Huh? Of course one user can 'destroy' the network; through generating or receiving disproportionally large volume of traffic; either causing Google to go over their committed information rate with their upstream providers, and owe overages, or causing saturation of peering links, requiring that a large amount of money be spent for additional faster interconnections.

    It's not just a shared resource. It's a shared resource you (the end user) don't fully pay for. The provider (Google), or for example, Netflix, has to pay for transit into other networks.

    Instead of paying your full cost of transit; you pay a fee that is reduced, reflecting that your use is residential non-commercial, therefore low usage, and you are not expected and committed to fully use that resource.

    Essentially; you have the full resource available to you, but you have only paid to compensate Google for limited use of it, and to an extent you may fully utilize the resource for short durations ---- providing you are within the acceptable usage you and Google agreed upon.

    but I might well be able to start something like an old-old-school slashdot (say, 1000 users) from a home server, and build up momentum and revenue to enable me to then scale as needed with servers beyond the ones in my home

    Google has a choice, as to whether they want to allow end-users to monetize the connectivity they are receiving or not. In almost all cases, additional fees would be required for this, if it is offered at all.

    Because business uses such as running public facing servers produce unpredictable, and potentially high network usage -- that would be a risk to Google.

    The $100 or so a month you pay to Google does not appropriately compensate for the risk; therefore, you shouldn't be allowed to do it.

    On the other hand... if you want to negotiate with Google and get a committed information rate, and allowed burst rate with 95th percentile billing; at a higher monthly price that compensates them for the risk, capacity requirements for maintaining user experience on their network, and added support cost.... more power to you.

  13. Re:Sony Hackstation on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 1

    The one Mac that would make sense to move to ARM - MacBook Air - was the first Haswell-based Mac launched.

    I expect the Haswell-based Mac air might be Apple's 2nd to last last Intel product.

    Probably within 24 months, they'll have a ARM-based Macbook air with Retina display, and then the Macbook Pros and iMacs will be discontinued.

  14. Re:Good response... but... on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 1

    So, all that matters is that there's a way to get your hands on a copy of the OS which I'm guessing will be accomplished within hours of release of PS4.

    They could make this pretty hard. If the PS4 indeed will have 16GB of internal flash; they can easily store the OS on a hardware module which cannot be removed from the box and dumped like you could extract the boot code from a hard disk.

    They could also provide separate bootcode, that loads an encrypted operating system -- that is, an operating system requiring code that is residing in a TPM protected area.

    And the applications that run on the PS4 OS could be designed to require TPM attested hardware keys.

    There are still mechanisms that hackers could attack it with, but it would be hard and take a long time.

    It's no certain thing that "TPM checks can just be patched out"

    Not if the TPM functionality, TPM protected areas, and hardware attestation (AIKs) are fully utilized by the OS and applications.

  15. Re:Sony Hackstation on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 1

    Well that would prevent users from running "Other OS" on the PS4... but to lift the OS off the PS4 and import it elsewhere?
    I suppose you could simply encrypt the entire OS on the driv

    I suspect the OS will contain a 'test' for the presence of the TPM chip and hardware key recognized as genuine Sony hardware. So if you boot a general purpose computer from it; it will either do nothing; or 'self-erase'.

    Hackers/emulator developers will most likely find a way to fool it.

    The OS image probably won't be stored on disk -- they will probably a gigabyte or two of flash soldered onto the mainboard.

    So the only way to extract the image (encrypted or not) would essentially be to be a hardware hacker.

    They could encrypt it on the hard drive too. But usually, the HDD is user-replaceable or uesr-upgradeable on the game consoles

    And if every playstation has to be able to decrypt the image; that means, they all have the same decryption key, stored in the hardware somewhere -- therefore, susceptible to extraction.

  16. Re:War of the Operating Systems on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 1

    X1 is on a Windows-kernel abomination

    I'm sure it's just to increase Windows sales numbers on paper.

  17. Re:Sony Hackstation on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 3

    So how trivial will it be to slurp the OS out onto a AMD card enabled PC and have our own "HackStation4"? Or... how would one modify FreeBSD to run PS4 software?

    Like a Hackintosh?

    Apple will solve it by moving to ARM.

    Sony can head off the problem by leveraging the TPM chip.

    If your hardware doesn't have a machine key with Sony's digital signature on it, then OS doesn't boot.

    Furthermore... no doubt UEFI secure boot will be leveraged, to prevent booting user supplied code on a PS4.

    I anticipate the trusted computing hardware to be used extensively.

  18. Re:License war commencing... on PlayStation 4 Will Be Running Modified FreeBSD · · Score: 0

    GPL: Had BSD been licensed under the GPL, Sony would have paid Microsoft, HP, or Google for an OS license. The cost of the PS4 would be higher. Fewer hours of kids' time would be wasted playing games, instead of doing productive activities: that generate economic or social value (such as writing open source software): the overall cost to society would be negative (that is to say society would actually benefit as compared to the other option).

    With fewer gamers in the world (due to the PS4 carrying a higher price tag), and more programmers -- the greater economic growth would reduce unemployment, create jobs: result in more software developers getting paid as a result of the PS4 development, and make world leaders look better; even if just a fractions of a percent, which are all still some great benefits to society ---- much better than an alternative, of just reusing an open source kernel in the project.

  19. Re:What happened to he didn't have access? on Edward Snowden Leaves Hong Kong · · Score: 1

    What happened to them saying he didn't have any secrets, he didn't have access, and that they weren't doing that crap, they were saying it like a week ago.

    They need to make an example of him. Now that he is fleeing to countries less friendly to the US; though, he's making himself a legitimate target for a NSA/CIA/Military assault team or drone strike.

    I think this guy has a 60 to 80 percent probability of this not ending well for him. He may wish he had stayed in the US to answer for the charges.

  20. Re:Do you need a clearance? on Ask Slashdot: Is an Online Identity Important When Searching For Technical Jobs? · · Score: 1

    don't buck the trend

    In other words... a backdoor way of implementing a hiring constraint, that in private industry could get your organization sued for discriminative hiring practices, under civil rights laws?

    * being secretly gay

  21. Re:unfiltered my ass on Google Fiber Adds 14th City: Lee's Summit · · Score: 3, Insightful

    Please reconcile that deception with these terms of service:

    Prohibitions against resale of their service to third parties, by providing many people internet connectivity: or by running a web server or other commercial service to consume their resources and derive profit from them.

    Are common restrictions: they are contractual rules, not filtering of applications, or non-neutrality.

    And the rules benefit the subscribers. It means that Netflix can't swoop in there, setup a residential datacenter: pay $30 a month for Google fiber, and saturate the network connections.

    Similarly... it means that ISPs or Tunnel/Proxy providers, or web hosting farms, cannot come in and abuse the service -- degrading service for other users, or imposing undue costs on Google, to pay for attempts to commercially exploit a service that is being provided for personal use.

  22. Re:Silence speaks volumes on Ask Slashdot: Is an Online Identity Important When Searching For Technical Jobs? · · Score: 1

    Sure... you will be strong against being an APT target; if you aren't broadcasting your role in the company, for chinese hackers to create targeted e-mail campaigns against you.

  23. Re:In conclusion on Google Respins Its Hiring Process For World Class Employees · · Score: 1

    However, one can set an objective bar for triviality with something like the Fizzbuzz test

    I would agree that's a trivial problem. It should take about 5 seconds to solve the problem -- well: it's more like an exercise because the answer is so obvious, and about 30 seconds to write out the code ------ but for real-world programming tasks, the problem solving is the hard part. But once the person's failed Fizzbuzz, they could go work out the problem on their own, and no longer have problems with it, because they'd be providing the solution from memory, instead of using problem solving abilities --- the test only works once, and only if the developer has never been exposed to it during a previous employment.

    The alternative to this is the "torches and pitchforks" approach to culling "inferior" developers on the team: terminations solely due to complaints from other developers

    This may still be necessary in some cases. What about the developers who pass the basic tests; they commit plenty of code, BUT the code is dodgy, and creates problems for other people on the team, or other teams trying to integrate.

    One person's bad code can compromise the performance of other developers.

    Perhaps developers should rate each other's commits :)

  24. Re:Do you need a clearance? on Ask Slashdot: Is an Online Identity Important When Searching For Technical Jobs? · · Score: 1

    Party life or drug refrences in your posts will work against you in your background investigation for the clearance.

    I was curious about this, but I hadn't heard from anyone with actual knowledge...

    I wonder more: does TS or above clearance require having or not having certain political opinions?

    For example... if you join the EFF or post in opposition to the broadcast flag, 3 strikes, the DMCA, or the NSA's wiretapping program or government secret surveillance programs on a mailing list, or on Twitter.... Or if you blew the whistle on a past employer, or leaked evidence of criminal wrongdoing to the media: do any of those sorts of things render a person neligible from ever obtaining a clearance?

    Or does the TS clearance process actually just look at actual criminal behavior, such as drug abuse, or drink and disorderly misconduct?

  25. Re:As the song asks... on Ask Slashdot: Is an Online Identity Important When Searching For Technical Jobs? · · Score: 1

    especially working for some kind of finacial reward which you'll spend on ultimately useless possessions or experiences.

    What, like Shelter, food, water, plumbing, air conditioning, telephone, internet connectivity?

    I for one would want to be the kind of person that gets a lot of financial reward.