Slashdot Mirror


RSA-576 Factored

An anonymous reader writes "I thought Slashdot would have picked this up several days ago, but apparently not. Although you still won't see any mention of it on the RSA challenge site, Mathworld is carrying the news that a team at the German Bundesamt fur Sicherheit in der Informationstechnik submitted a factorization of RSA-576 on December 3. RSA-576 is the smallest challenge number that RSA Security offers a cash prize for, to the tune of $10,000"

30 of 321 comments (clear)

  1. I think my form of encryption is better by Wigfield · · Score: 3, Funny

    Ontday oyay inkthay osay?

    1. Re:I think my form of encryption is better by Anonymous Coward · · Score: 5, Funny

      it's so you can read the screen when you look at it over your shoulder with a mirror.

    2. Re:I think my form of encryption is better by the_argent · · Score: 5, Funny

      Or my personal favorite....

      Double ROT13.

      Which incidently, is hereby covered under the DMCA, if you manage to decipher it will be fully procecutable under the fullest extent of the law.

    3. Re:I think my form of encryption is better by Anonymous Coward · · Score: 2, Funny

      ROT 104 baby, it's FOUR times safer than yours....

    4. Re:I think my form of encryption is better by Goldfinger7400 · · Score: 2, Funny
      Wouldn't it work pretty well to establish a pre-determined OTP generator? like, the winning lottery numbers last night

      Yeah, but then the NSA would figure out how to systematically win the lottery every time in an effort to break the one time pad!

    5. Re:I think my form of encryption is better by Theaetetus · · Score: 2, Funny
      Double ROT13.

      As a really amusing side note, BBEdit, by Bare Bones Software, a really great programmer's tool for the Mac, has a ROT13 tool...

      When you select text and use the tool, a warning pops up on the screen:

      "Warning: This operation is not undoable."

      -T

  2. Well, that's just fantastic, isn't it by mcc · · Score: 4, Funny

    I think that composite numbers everywhere will sleep just a little bit less securely tonight, knowing that the Bundesamt fur Sicherheit in der Informationstechnik is out there, somewhere, waiting for them.

    Yup.

  3. That's Easy by paul248 · · Score: 4, Funny

    Look! I did it too!

    1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576

  4. Reaction by Angram · · Score: 5, Funny

    I think I speak for 99% of the population when I say...

    "Oh."

    --

    GL
  5. Cheaters! by Anonymous Coward · · Score: 3, Funny

    They probably just looked in the back of the book.

    1. Re:Cheaters! by endx7 · · Score: 5, Funny

      They probably just looked in the back of the book.

      No, that was an even problem. Only odd problems are in the back of the book.

  6. Re:Umm..k? by Snoopy77 · · Score: 4, Funny
    Soo......what does this mean? RSA-576 sounds like the name of a fighter plane.

    Well i_am_syco, articles are there for reading. They can even increase your knowledge, and one day you may even learn how to spell psycho properly.

    --
    "She's a West Texas girl, just like me" - G.W Bush Iraqis
  7. The Other One Percent by handy_vandal · · Score: 4, Funny

    I think I speak for 99% of the population when I say... "Oh."

    I think I speak for the other 1% when I say ...

    "Um."

    -kgj

    --
    -kgj
    1. Re:The Other One Percent by Anonymous Coward · · Score: 2, Funny

      And i speak for the HTML nazis when i say "Close your fucking tags!"

  8. Oh no... by RSA-576 · · Score: 5, Funny

    How could they *factor* ME without *my* own knowledge?! Somebody call the doctor... -RSA-576

  9. Re:The factors were by TedCheshireAcad · · Score: 3, Funny

    Your first factor is composite, slick.

    This is a /. revolution, instead of spelling nazis, we now have composite number nazis.

  10. Re:Is 576bit big? by I+Be+Hatin' · · Score: 5, Funny
    However, with Beowulf clusters and the new primability test, this is being offset

    Woop! Woop! Woop! Bush-ism alert! Bush-ism alert!

    Perhaps you meant primality?

    --
    I know god exists. I read it on the internet, so it must be true.
  11. 4 days and no mention on RSA's website? by product+byproduct · · Score: 4, Funny

    They're busy multiplying the two 87-digit factors by hand, just to be sure.

  12. Awww by JDWTopGuy · · Score: 4, Funny

    Crap, there go my plans to factor it myself.

    --
    Ron Paul 2012
  13. Mod parent up! by Anonymous Coward · · Score: 0, Funny

    -- Funny
    -- On topic

  14. Re:Hmmm. Complexity vs. Cash by couchslayer · · Score: 2, Funny
    I read this quickly and agreed that NFS does have exponential complexity, and is impossibly slow. Damn Network File System!

    --
    If a woodchuck could, would it be too lazy to?
  15. Re:Notify RSA by marko123 · · Score: 1, Funny

    One of these numbers is not prime. Check it out for yourself!

    --
    http://pcblues.com - Digits and Wood
  16. Easily Multiplied Numbers !!?? by Proudrooster · · Score: 4, Funny

    And I quoth from the article:
    3980750 8642406493 7397125500 5503864911 9906436234 2526708406 3851895759 4638895726 1768583317
    x
    4727721 4610743530 2536223071 9730482246 3291469530 2097116459 8521711305 2071125636 3590397527
    which can easily be multiplied to verify that they do indeed give the original number.


    Does anyone have a calculator that can "easily" multiply these two numbers... Holy Cow!

    1. Re:Easily Multiplied Numbers !!?? by Platinum+Dragon · · Score: 2, Funny

      Does anyone have a calculator that can "easily" multiply these two numbers...

      A pencil and paper seem to do a great job at storing the values for calculation. As for actually carrying out the calculation, that's what your brain cells are for.

      They said "easily". They didn't say "quickly". :-)

      --

      Someday, you're going to die. Get over it.
  17. Re:Is 576bit big? by Anonymous Coward · · Score: 4, Funny

    Someone might find some way to factor primes instantly via quantum computing, and your one-time pad would not be affected.

    That's definitely a good thing, because that instant prime-factorization algorithm has been around for centuries! Given a prime p, its factors are 1 and p.

    Still, for some reason, it seems like there's a Microsoft conspiracy to keep this knowledge from reaching the masses. What do they have to hide?

    "The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers." Bill Gates, The Road Ahead, Viking Penguin (1995)

  18. Distributed Computing by anaphora · · Score: 2, Funny

    This looks like a prime job for distributed computing. Code a program that does this distributed, offer people xxx dollars per work calculation with a $1000 bonus if their calculation is correct. Deduct a few thousand for yourself, and voila. Crack the hardest code.

  19. Re:Mersenne Primes by Alsee · · Score: 4, Funny
    --
    - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  20. Re:Post Quantum Crypto by Andy_R · · Score: 2, Funny

    I use LJ-5, which I believe to be sufficently safe.

    No-one is going to wade through 5 pages of a Live Journal blog to find my secrets.

    --
    A pizza of radius z and thickness a has a volume of pi z z a
  21. Cracking old messages? Come on... by Chemisor · · Score: 2, Funny

    > Those people could be concerned at this point that
    > their old messages could be cracked.

    Who would want to spend zillions of hours of computer time to read some geek's old messages?

    "Great news, today I have finally managed to install the latest 0.99.1 kernel and boy is it great! I'm so glad I picked SLS instead of slackware, whose installer sucks big time. With my beloved SLS all I had to do was swap four floppies in and out and everything works beautifully! No crashes yet. I never realized how much of a pain DOS was! I just finished getting my printer to work (sure was tough, see attached comments on my 7551 hack) and am bored stiff. Do you know if there are any games for Linux? Moria just doesn't cut it after King's Quest."

  22. Re:Global Warming by Gannoc · · Score: 2, Funny
    I still remember homework about a driver being stopped because he ignored a red traffic light. He claimed the light was green because of Doppler shift caused by high speed of the car. The amount of fuel required to reach this speed was by far higher than the total consumption by mankind.


    I hate to be the one to tell you this, but most of your homework problems didn't actually happen in real life. For example, there probably isn't a train leaving san franciso and denver at the same time at different speeds heading towards each other on parallel tracks.