Slashdot Mirror


Factoring Breakthrough?

An anonymous reader sent in: "In this post to the Cryptography Mailing List, someone who knows more about math than I do claimed "effectively all PGP RSA keys shorter than 2k bits are insecure, and the 2kbit keys are not nearly as secure as we thought they were." Apparently Dan Bernstein of qmail fame figured out how to factor integers faster on the same cost hardware. Should we be revoking our keys and creating larger ones? Is this "the biggest news in crypto in the last decade," as the original poster claims, or only ginger-scale big?"

12 of 489 comments (clear)

  1. Re:Ginger scale big? by medicthree · · Score: 2, Funny

    don't tell me you haven't converted your judgments of magnitude to the ginger scale. everybody's doing it.

  2. Whew - I'm safe by Dolph · · Score: 3, Funny

    I use a 4096-bit GPG key. It may take a day to encrypt a message, but at least the encryption can't be broken (yet).

    --
    --
    Beauty is in the eye of the beholder... Oh, no. It's just an eyelash.
  3. Re:Were they even secure yesterday? by Anonymous Coward · · Score: 2, Funny

    You could use rot-13 and your boss would probably be baffeled.

    Especially if you misspell everything!

  4. Re:Really Unique Crypto by Eccles · · Score: 2, Funny

    Isn't this just a creative variation on the one-time pad technique?

    And all of these, really, are just techniques that split up the message, and then assume the decrypters can only get one part. So essentially you could do this with any encryption algorithm, just send part by the internet, and part by carrier pigeon, attack stoat, etc.

    --
    Ooh, a sarcasm detector. Oh, that's a real useful invention.
  5. Reward by suso · · Score: 5, Funny

    Is he going to pay someone $5000 if they can prove him wrong? (qmail joke)

  6. Re:OT: Your sig by TheGreenLantern · · Score: 3, Funny

    No no, God is in the square root of the second time dimension. The proof is here.

    --

    It hurts when I pee.
  7. I don't care about n-bit encryption by weird+mehgny · · Score: 5, Funny

    .deen uoy noitpyrcne eht all is sihT

  8. Re:Just wait... by nomadic · · Score: 5, Funny

    Crypto experts? Don't you realize the average slashdot poster is an expert on all technical and mathematical subjects, no matter how esoteric? Come on, get with the program...

  9. Re:Were they even secure yesterday? by Fulcrum+of+Evil · · Score: 2, Funny

    From the government?

    Forget encryption. Piss them off and they'll come after you directly.

    --
    "We returned the General to El Salvador, or maybe Guatemala, it's difficult to tell from 10,000 feet"
  10. Re:Ginger scale big? by Thing+1 · · Score: 2, Funny
    don't tell me you haven't converted your judgments of magnitude to the ginger scale. everybody's doing it.

    I was always partial to the maryann scale, myself.

    --
    I feel fantastic, and I'm still alive.
  11. Re:Hmm.... by sludg-o · · Score: 4, Funny

    And the symetric keys netscape uses don't depend on factoring primes
    to be secure ...


    Good, because here's a script I wrote that factors any prime number in constant time:

    #/usr/local/bin/perl5 -w

    print "Please enter a prime number";

    chomp($prime = <STDIN>) ;

    print "The factors of $prime are $prime and 1";

    exit(0);

    Of course, you really DO need to input a prime for it to work.

  12. Re:This does /not/ break RSA. by bakes · · Score: 3, Funny

    Solving factoring wins a Nobel Prize? Is that why it's called NP-complete?

    --
    Ho! Haha! Guard! Turn! Parry! Dodge! Spin! Ha! Thrust!