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User: Beryllium+Sphere(tm)

Beryllium+Sphere(tm)'s activity in the archive.

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  1. Steganography in program files on Blocking Steganosonic Data In Phone Calls · · Score: 1

    It doesn't have white noise, but a program has enough places where you can replace code by a functional equivalent that you can pass messages in modified executables: http://www.crazyboy.com/hydan/.

  2. Other echoes of the past on 100-Year-Old Electric Car Design Makes a Comeback · · Score: 1

    This may have been pure coincidence, with two teams of engineers finding the same solution to the same problem, but the design of the Prius virtua "transmission" is similar to that of the 1911 Woods Dual Power Couple, an early hybrid.

  3. Re:100 gbps wavelength? on Comcast Kicks Tires On 100-Gig Optical Links · · Score: 1

    Though the article is ambiguous. When it says "100 Gbps wavelengths" it could mean multiple wavelengths each carrying part of the data stream.

  4. Re:100 gbps wavelength? on Comcast Kicks Tires On 100-Gig Optical Links · · Score: 5, Informative

    Backbone fiber uses wavelength division multiplexing, which means that more than one color of light carries data over the fiber. So it's common to talk about lighting up a wavelength ("lighting a lambda"), and in general to use "wavelength" to mean one of the several carrier frequencies on the fiber.

    So a "100 Gbps wavelength" means a single laser-receiver pair modulated to carry 100 Gbps.

  5. Previous work on Comcast Kicks Tires On 100-Gig Optical Links · · Score: 2, Informative

    Demo of bonding 10 wavelengths together, each carrying 10 Gbps:
    http://gigaom.com/2006/11/14/100gbe/
    The comments after that post include one about NTT testing 111 Gbps over a single wavelength for 160 km. That's more like the article, which sounds like it's describing a single wavelength.

  6. Solar output on Alaskan Village Sues Over Global Warming · · Score: 1

    >It appears to me that those who said that the SUN was causing global warming due to increased sunspot activity, that has recently subsided, were correct.

    Judge for yourself: the last almost-30 years of direct satellite measurement of solar output. Besides, increased solar output wouldn't make nights warm up faster than days.

  7. If you have to use a meatspace analogy at all on The Semantics of File Sharing · · Score: 1, Insightful

    Copyright infringement is more like trespass than like theft.

    In trespass, you're violating the property owner's legally conferred right to control use of his/her property.

    Trespass law balances social good against property rights. For example, in the UK (if I understand right) you can't stop hikers from crossing your meadow. The analogy to hiking would be the activities that constitute fair use.

    Trespass, like copyright violation, can be commercial or non-commercial. Commercial copyright infringement is like subletting your apartment without ever leasing it in the first place.

    Where the analogy breaks down is that even just walking across someone's land is more intrusive than sharing a file. Another breakdown is that there's no common meatspace equivalent to inviting thousands of people to bypass a toll booth.

  8. Re:or just visit sites you trust on Serious Vulnerability In Firefox 2.0.0.12 · · Score: 4, Informative

    >Visiting only sites you trust will keep you away from people who want to compromise your computer 99.99999999% of the time

    Assuming that the sites you trust haven't been compromised, this still leaves out the serious problem of attack code inserted into advertising.

  9. Book pointer on Protecting Online Identity Through Cryptography · · Score: 4, Informative

    For people who want background or just enjoy math, Brands's book is Rethinking Public Key Infrastructure.

  10. Skype encryption documentation and lack thereof on German Govt. Skype Interception Trojans Revealed · · Score: 1

    True, Skype has never released the kind of documentation that would give a cryptographer or security professional any confidence. But some things have been made public by reverse engineers: www.blackhat.com/presentations/bh-europe-06/bh-eu-06-biondi/bh-eu-06-biondi-up.pdf

  11. Re:Who will advocate change? on Geekonomics · · Score: 1

    >But realistically, what industry will lobby their respective governments for this change?

    An industry full of big incumbents who can afford the overhead of a regulatory compliance department, an industry afraid of small fast-moving competitors, competitors who could be mired in tar and crushed by the burden of regulation.

  12. But punched cards are best on Vinyl Gets Its Groove Back · · Score: 5, Funny

    >I haven't heard a hurray for punchcards post recently.

    Newer technologies just don't give programs the same nuanced performance and octagonal algorithms as punched cards. The clean edges of a punched bit totally rule over the bits on magnetic media that require a dedicated computer just to recover them from the noise. All that extra work to reconstruct a bit makes them tired, and fatiguing to debug.

    Face it: programs run off hard disks just have grainy memory usage and an indistinct sound stage.

    But punched cards are a distraction from the real issue, which is that only a vacuum tube computer can do justice to the best algorithms.

  13. Re:Non-news on Young IT Workers Disillusioned, Hard to Retain · · Score: 2, Interesting

    Any building in Redmond. Microsoft puts programmers in offices so they have a chance at concentrating.

  14. Explored in science fiction on Western-Style Voting 'A Loser' · · Score: 1

    Polity and Custom of the Camiroi, by R. A. Lafferty. Laws were wikis, bad ones got reverted quickly, and one visitor who entered a law restricting the system to qualified people got reverted immediately. The visitor was informed that yes, the law could be re-entered, but that the guy who reverted it was "very good with the ritual sword".

  15. Re:Simple solution: TOR on Will Privacy Sell? · · Score: 1

    What about the Google cookie?

    Assuming you've taken logical precautions about the content of your searches, for example not ego-surfing in the middle of the searches you wanted to keep private.

  16. Wiping on Most In US Have False Sense of Online Security · · Score: 1

    I went to a security get-together with Dan Kaminsky, Damon Cortesi, and Jason Larsen, and during the panel discussion asked what they were doing to protect their own systems. I forget which one said it, but one of the replies was that the person reformatted often.

    Which strikes me as the counsel of despair, but in a world of stealthy malware where you can get infected by simply viewing a video, I can't bring myself to say it's absurd.

  17. Low bandwidth, high noise resistance on Ham Radio Operators Are Heroes In Oregon · · Score: 4, Informative

    These advantages are shared by computer-generated modulation schemes such as PSK31, which theoretically fits into 31 Hz (though in practice many signals are distorted and splatter over more spectrum than that) and which can be decoded when it's too faint to be heard through the noise.

  18. Writing down your password on Freakonomics Q&A With Bruce Schneier · · Score: 2, Interesting

    Same point as Bruce, but put in terms of a threat analysis translated into everyday terms:
    Why you should write down your password

  19. Re:The Constitution describes GOVERNMENT's power. on NJ Blogger Fights for Anonymous Free Speech · · Score: 1

    The Supreme Court agrees. Some cases where they've blocked legal interference with anonymous speech are McIntyre v. Ohio Elections Comm'n, 514 U.S. 334 (1995) and Talley v. California, 362 U.S. 60 (1960).

  20. Re:What is Verizon's Provisioning for FIOS ? on Is Comcast Heading the Way of the Dinosaur? · · Score: 1

    >It's a discrete network. Bandwidth sharing isn't possible.

    My understanding had been that the OLT, after measuring and equalizing delays to/from the ONTs via PLOAM, issues a "grant" to each ONT of a time interval to transmit, the system being TDMA on both the upstream and downstream link, though upstream is separated from downstream via WDMA, with downstream at 1490 nm and upstream at 1301 nm.

    Is my understanding incorrect, and if so in what way? Because if that's correct, then the grant map is allocating bandwidth among the ONTs.

    Are you saying that DBA (Dynamic Bandwidth Allocation) simply isn't being used because Verizon hasn't oversubscribed FIOS yet, or are you saying that it's impossible?

    Incidentally, "discrete network" is not a well-known term and deserves a definition.

  21. How it's working today on All US Border Crossings Now Require A 'Terrorist Risk Profile' · · Score: 2, Interesting
  22. AES security and crypto in general on Google Plans Service to Store Users' Data Online · · Score: 3, Informative

    As the old saying goes, if you count on crypto to solve all your problems you don't understand crypto and you don't understand your problems.

    The point that your data can and will be attacked while it's in plaintext is well taken. A networked machine running a web browser (the Sendmail of the 21st century) is a low security device, even with a good operating system. Google for "Scarfo", the mobster who was using PGP but also had an FBI keylogger on his computer.

    As regards AES, though, we've got good reason to think it's resistant to cryptanalysis. The NSA is also in charge of protecting government secrets from foreign snoops and has approved AES for protecting classified data.

    The low security of a workstation cuts both ways in an argument about gDrive: because your data is already at risk sitting on your hard drive, storing it encrypted on gDrive might not be any worse.

    Security without threat modeling is like bricks without straw. What are we protecting data against? Loss, primarily. I trust Google's backups more than I trust mine (but I'd tell a client to look for a provider willing to sign an SLA). Unauthorized copying by crackers? AES should be an adequate control to cover that risk. Subpoenas? An attorney with two brain cells to rub together will subpoena the decryption keys, so no help from AES there. Vacuum-cleaner style mass government surveillance, looking for keywords like "Tibet" or "Falun Gong"? AES should prevent that. Government criminal investigation? You could (in the US) argue that surrendering the keys would be self-incrimination and end up paying a lawyer lots of money to argue the point for years. Expensive and undependable security, but then in a criminal investigation there's not much security difference between gDrive and your local machine anyway.

    If you have security needs you should do an analysis like that last paragraph, only longer. For lots of people encrypted files on gDrive might be just fine.

  23. Re:Stoopid scientists get sailors killed. on New Software Could Warn Sailors of Rogue Waves · · Score: 2, Insightful

    The scientists made their decisions on objective data but weren't convinced by anecdotal evidence. In other words science worked just as it's supposed to work.

  24. Re:I agree its wrong on Wi-Fi Piggybacking Widespread · · Score: 1

    >Here, the FCC has said that if there is no attempt to lock it down, it's free game.

    I hadn't heard about this: do you have a reference I can point to if anyone asks?

  25. I've suggested this on Students Assigned to Write Wikipedia Articles · · Score: 4, Insightful

    Wikipedia should be output, not input, for students past a certain age. It gets them used to writing for real people as opposed to just for getting graded, it gives them the experience of having their writing edited by people of varying abilities, and it gives them motivation for doing research. Another, easier, option would be to assign students to correct Wikipedia articles.