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Thread: Crypto

  1. #1
    JJ
    Guest

    Crypto

    Hi
    I would like to ask howcome no one is writing any documents about cryptography based schemes. That be it RSA, Blowfish, Elgammal - howto identify what encryption is used, and howto aproach them and in the end maybe write a keygen? - But it seems most people just keep their knowledge to themselves about that topic - so if someone could please write any documents about this very interesting subject i think many people would be thankfull :-)

    - Crypthography in general would be interesting reading, more and more schemes use crypthography in someways.
    I promise that I have read the FAQ and tried to use the Search to answer my question.

  2. #2
    carpathia
    Guest
    Hi,

    You know, you dont *need* to rely on anyone else to write tutorials for it. Why not set out to read up on crypto and progress on your own.

    On the REKML files download area (rekml.cjb.net), is a great crypto book by Bruce Schneir (Sorry Bruce, I can never spell your surname correctly

    Also of interest:

    The RSA FAQ (zipped PDF)
    ftp://ftp.rsasecurity.com/pub/labsfaq/rsalabs_faq41.zip

    FTP site of Crypto tools, papers and code
    ftp://ftp.compapp.dcu.ie/pub/crypto/

    Some crypto algorithms; many broken links
    http://www.cs.auckland.ac.nz/~pgut001/cryptlib/algorithm.html

    Hope this gets you started.

    Regards

    Carpathia
    I promise that I have read the FAQ and tried to use the Search to answer my question.

  3. #3
    Epic
    Guest
    It is not easy (if not too difficult) to pinpoint the crypto algo used to produce a given ciphertext.

    However, sometimes it is possible to findout the algo very quickly from the proggy.

    Different crypto and hash algos use different numeric constants. Thse search for those numeric constants (and possibly their arithmetic relations) will yield some results.

    See carp's links.

    Search for the "mcrypt" and "mhash" libraries. They include the necessary information.

    Kind regards.

    Epic
    I promise that I have read the FAQ and tried to use the Search to answer my question.

  4. #4
    JJ
    Guest
    Thanks for your kind replies. But i predicted the reply with bruce's book. And sure its good, but i would like if someone could write a tuturial about cryptography in protection schemes, as a start offset. Because so far i have seen no one share their knowledge on this subject.

    - JJ
    I promise that I have read the FAQ and tried to use the Search to answer my question.

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