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Thread: RSA - RC5 or AMD USERS ???

  1. #1

    RSA - RC5 or AMD USERS ???

    Who? What? Where? When?
    I am reading the RC5 site right now, hoping for a reply here sooner rather than later; so I don't sign up with wrong group

    Thanks in advance!

  2. #2
    NeoGen's Avatar
    NeoGen is offline AMD Users Alchemist Moderator
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    Is that project still alive...? I remember hearing that the RSA 576 had already been broken by an outside group.

  3. #3
    Oops, sorry, I'm here reading, and totally lost. lol:
    http://home.cfl.rr.com/pheenix/rc5.htm

  4. #4
    Well something is happening, cause there is today's dates on this page for 'last connection':
    http://stats.distributed.net/partici...ow=1&limit=100
    From what I read at the RSA site, there is no mention of working on a unit called 72, and the 10,000$ prize is for unit 576.
    Anywho.

  5. #5
    NeoGen's Avatar
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    Ah, I understand it now.

    Yes, I've heard about those contests at RSA for quite a while. Distributed.net is the only one who has a DC project that is trying to crack them. More specifically the RC5-72

    Here you got the list of contests and respective prizes for RSA
    http://www.rsasecurity.com/rsalabs/node.asp?id=2093

    And here are the ones for RC5
    http://www.rsasecurity.com/rsalabs/node.asp?id=2103

  6. #6
    NeoGen's Avatar
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    The "RC5-72" on Distributed.net is listed on RSA Labs site as "RC5-32/12/9" which means "RC5 with 32-bit wordsize, 12 rounds, and 9*8=72-bit key" (hence the 72 on Dnet)

  7. #7
    Thank you, yes I came upon the first link through our Topic link on left.
    I am going to switch to only this project and see what comes of it.
    - I will keep my face here though, as this is where I heard about RSA. !!!

    and Thank You folks for quick replies :D :D :D

  8. #8
    NeoGen's Avatar
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    No problem meckano. Glad I could help.
    I also answered quickly because I had some knowledge on this matter... in other times, when I was younger (and unconscious) I tried to devise an algorithm to break the RSA... :P

  9. #9
    Its crunching, and seems to be about 20% / minute.
    Now to put it on 98se and configure proxy into it.

    Just did some checks, here are my benchmarks:

    [Mar 24 03:42:49 UTC] OGR: using core #0 (GARSP 5.13-A).
    [Mar 24 03:43:09 UTC] OGR: Benchmark for core #0 (GARSP 5.13-A)
    0.00:00:16.71 [16,117,477 nodes/sec]

    [Mar 24 03:43:42 UTC] RC5-72: Benchmark for core #6 (GO 2-pipe)
    0.00:00:16.89 [8,741,463 keys/sec]

    [Mar 24 03:43:51 UTC] OGR-P2: using core #0 (GARSP 5.13-A).
    [Mar 24 03:44:10 UTC] OGR-P2: Benchmark for core #0 (GARSP 5.13-A)
    0.00:00:16.46 [16,135,783 nodes/sec]

    Edit:
    98se has been setup for a bit now, it is using my proxy server just fine.
    Thanks again for the quick help folks!
    If I win the 1000$, I'll buy the beer! :D

  10. #10
    woohoo, found an amd-users group there; 6 users soon to be 7
    http://stats.distributed.net/team/tm...28697&source=y

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