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double encrypting

2 posts by 2 authors in: Forums > CWSP - Enterprise Wi-Fi Security
Last Post: April 10, 2005:
  • By jamesn
    Reply

    HI
    i am new to network security., well just started learning. I like to know why double encryption with DES is no good, (ie. 2DES = DES[k1](DES[k2](m))). k1 and k2 are keys. I also like to know how it can be broke.
    Could someone help, please?
    James

  • By Criss_Hyde
    Reply

    Hi James:

    The attack on double-DES is called meet-in-the-middle.

    google: "DES meet-in-the-middle"

    I hope this helps. Thanks. /criss

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