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User: buchner.johannes

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  1. Re:Pls be candid... on Ask William Shatner Whatever You'd Like · · Score: 1

    Are you for or against The Wesley Crushers?

  2. Re:I don't think they understood. on Security By Obscurity — a New Theory · · Score: 2

    No. Only the following two are true:
    (a) A 128 bit certificate is the equivalent of 128 light switches that have all to be in the right setting (not 2^128),
    (b) A 128 bit certificate is the equivalent of 2^128 doors, of which you have to find the right one.

    Here the arrangement of 128 options with 2 choices is the equivalent of choosing the ordering number in a sequence of 2^128 elements.

    Doors with (counter)clockwise just half the number of doors needed, as you can see each rotation as a separate door. Or you go back to the example of a vault lock based on a certain order of specific rotations -- then you are again taking about a combinatoric issue. If your argument is that the unknown procedure is the security, then I just have to find a way to list all the possible solution procedures -- the complexity of that is the security of the lock. Nothing is gained.

  3. Re:I don't think they understood. on Security By Obscurity — a New Theory · · Score: 2

    Think about it a little more and you'll see that it's the same thing. A number and it's representation in a numeral system share a duality. Also, it's not 2^128 bits, it's 128 bits, but you probably meant that anyways.

  4. Re:Considering /.'s lead time.... on NASA Warns of Magnetic Storm After Huge Solar Flare · · Score: 1

    Except that they don't, in fact, observe neutrinos before supernovae. They arrive right when they "should", at or slightly after the light arrives. Bear in mind that \Delta t is 6x10^{-8} seconds over 500 miles. A light year is roughly 6 x 10^12 miles, so a supernova from hundreds to millions of LY away would produce neutrinos that arrive anywhere from hours to days or months before the light. And they don't, or at least no one has yet observed that they do. That is, it isn't really a tiny percentage, not tiny as in at all difficult to resolve. 60 nanoseconds is hundreds of CPU clock cycles -- your computer could resolve the timing to a couple of significant figures and I'm guessing state of the art clocks and transducers can do at least orders of magnitude better.

    It's one of several reasons that people are skeptical about the superluminal result, one of several things that will ultimately have to be explained if the superluminal result is eventually validated.

    The only supernova where neutrinos could be assigned to was 1987A, and the number counts (detailed on Wikipedia) were too low to state anything significant. However, there was a increase in neutrino counts 3 hours before the light arrived.

    You also have to keep in mind that process producing the neutrinos in a SN could just be earlier. Yes, neutrino speed should be verified.

  5. Re:Wait! on Mozilla Foundation Releases Firefox 7 · · Score: 1

    Or you could Ctrl-Click.

  6. Re:First post! on Faster-Than-Light Particle Results To Be Re-Tested · · Score: 1

    I like this one better(for FTL):

    I propose using FTN, since FTL just looks lame now.

    Light year long stick

    Our physics prof gave the same example with a tube between earth and moon. The solution is to imagine a poke as a bang onto the end of the stick. The bang/pressure wave/"poking information" will travel not even with light speed, but with the sound speed of the material.

  7. Re:Which speed of light on CERN Experiment Indicates Faster-Than-Light Neutrinos · · Score: 1

    Dirt and rock is not blocking all wavelengths. Radio will pass through (with the speed of light).

  8. Re:I just migrated... on Why You Shouldn't Panic About Closed Source MySQL Extensions · · Score: 4, Informative

    Migrating from MySQL to PG may be easy, but migrating from MySQL to MariaDB is trivial.

  9. Re:I have seen the Blu-ray releases on Why Star Wars Should be Left to the Fans · · Score: 3, Funny

    In the new cut, did they put in the cantine scenes from the death star?

    http://www.youtube.com/watch?v=Sv5iEK-IEzw
    http://www.youtube.com/watch?v=KJ2yRTRlMFU

  10. Re:Shills on Neal Gafter On Java Under Oracle · · Score: 3, Insightful

    At least he explains why. MS has way more resources than Sun ever could manage. It surprises me that Java even got out the door, honestly.

    Also recall that MS hired the best and brightest away from Borland a few years before the inception of .NET. And look, the best of them (Anders) architects C# now.

    It might also have something to do that when C# turned up, Java was already a mature language and approached the various problems. Of course, if you do something later, you learn from previous attempts, so it couldn't be worse just from that fact. Since C# never aimed to run on non-windows, it's also not a fair comparison of designs, because the goals were different.

  11. Re:SSH keys? on Linux Foundation, Linux.com Sites Down To Fix Security Breach · · Score: 1

    It is an unfortunately common case that people copy/create private ssh keys on servers to login (or scp) from those to another remote host. These keys are of course compromised.

    There is no requirement to do that. You can just create a tunnel through the first server to the second (ssh -L). Then you connect to the tunnel port on localhost, and you never had to give away your private key. You're even safe if the server in the middle gets compromised.

  12. Re:Xorg, not the kernel on Ask Slashdot: Best Programs To Learn From? · · Score: 1

    Here are some more links:

  13. Xorg, not the kernel on Ask Slashdot: Best Programs To Learn From? · · Score: 2
    • Xorg needs plenty of help that could be influencial. I heard it's more difficult than Kernel development ;-)
    • You can pick a project from https://www.fsf.org/campaigns/priority-projects/
    • You can also look at the projects of other well-known organisations (smaller projects by Mozilla, VLC, GNU, Wine), but it's best to work on a software you use and like. For instance, I tried to extend evince with a dual-screen presentation capability.
    • I can also put forth my project, JakeApp that needs developing of a GUI (Java or Python or Ruby, whichever you like), and testing. It's about distributed P2P folder synchronization and hopefully soon also P2P TCP tunnelling, for small workgroups or companies.
  14. Re:Hahaha. it failed. on P2P Traffic Drops 10% After New NZ Law · · Score: 2

    Internet access is very expensive in New Zealand, and virtually always data limited (5, 10, 25GB offers). You pay about 1$/GB.
    Its insane. But there is no proper competition, a small population, and no demand from the users.

    So people don't usually run Bittorrent et.al. so much, and renting DVDs is pretty popular.

  15. Re:Google's idea of open source isn't right on The State of Open Source Software · · Score: 1, Troll

    This is not how open source is supposed to work. Open source doesn't mean "closed until we decide to make it open".

    You are right, open source means "closed until we release".

    Open source doesn't mean "closed until we and our partners can profit."

    You are right, open source means "closed until we and our partners can sell/distribute it".

    Oh -- open source exactly means that. If you don't release, you don't need to publish the source.

  16. Re:Yawn on There's Been a Leak At WikiLeaks · · Score: 1

    There's another option:
    3. He's an intelligence agent for either a government or business assigned to spy on Wikileaks, and then given the order to discredit them and take them out of commission without creating any martyrs. As a side effect, he might be setting up Openleaks to be a honeypot making it nice and easy to catch those trying to leak to the public.

    Since Openleaks does not work like Wikileaks, this is not possible. The Openleaks software is a standalone server that can be deployed by anyone. Currently, there is a review by security experts on the code. This is no different to Wordpress, tailored for secure leaking (bad example, I admit).

    The point of Openleaks is to not have the trust problem you describe.

  17. Re:Mozilla Foundation is badly managed. on Updated: Mozilla Community Contributor Departs Over Bug Handling · · Score: 3, Interesting

    Mozilla Foundation has always been badly managed. In the beginning it was managed by Winifred Mitchell Baker, a socially backward lawyer with no technical experience.

      Add-ons are the reason people use Firefox. Decisions are made that break Firefox Add-ons, without notice.

    Firefox is extremely important because it is the only browser that has such an extensive list of add-ons. (Unfortunately, Add-ons are also called "extensions" and "plug-ins".) For some uses, the add-ons are so convenient that they can be considered necessary.

    Mozilla is not breaking add-ons anymore. Now, addons are scanned by a bot and if no problems are expected, the addons compatibility version range is automatically extended to the current version. I have seen this with my addons.

    Addons are themes and extensions. Plugins are something completely different, for instance Flash and Movie players, i.e. implementations of the nsplugin-api. This is clearly defined by Mozilla.

  18. Re:This is patently false. on The Copyright Nightmare of 'I Have a Dream' · · Score: 2
  19. Mars maps please on Open Source Simulator FlightGear Releases v2.4 · · Score: 2

    Can I fly across Mars now? It'd be cool if they could integrate the NASA(?) maps...

  20. Re:Here we go again on Emergent Gravity Disproved · · Score: 1

    This guy sounds pretty convinced and pretty much closes the chapter at the end of the blog entry http://motls.blogspot.com/2011/08/once-more-gravity-is-not-entropic-force.html

  21. Re:Why are these releases still news on X.Org Server 1.11 Released · · Score: 4, Interesting

    I would like
      * mouse gestures like Stroke-It
      * support to connect xinerama dynamically to other computers and use them as second display.

  22. Re:Diamonds are not rare, not even on Earth. on Massive Diamond Found Orbiting Pulsar · · Score: 2

    Regardless of what the De Beers group wants you to think, diamonds are not that rare. Carbon is the most common element around.

    Hydrogen is the most common element, not Carbon. Or was that a hyperbole?

  23. Re:need to fix the critical bugs! on The GIMP Now Has a Working Single-Window Mode · · Score: 1

    You say many distros, and quote ubuntu&kubuntu (which have the same gimp package)? So it works in all but ubuntu?
    Doesn't that just mean that ubuntu's packagers screwed up?

  24. Re:Counter point. on C++0x Finally Becomes a Standard · · Score: 1

    Is that you need to recompile the fault of the language or the fault of make?

  25. Re:Clean cool crisp refreshing on C++0x Finally Becomes a Standard · · Score: 2

    There are some mature libraries like GObject (and Vala, Genie) that do objects for C.