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From: John R. Shannon (johnjohnrshannon.com)
Date: Thu Mar 14 2002 - 05:23:11 CST

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    AES and DES are compared on this AES fact sheet:

    http://csrc.nist.gov/encryption/aes/aesfact.html

    The problem with DES is that it's 56 bit key, which was adequate in the 70s,
    can be discovered by exhaustive keysearch.

    3DES attacks this by applying DES 3 times: encrypt with 1 key, decrypt with a
    second, and encrypt with a third. The best known attack on 3DES is O(2^108)
    operations with something like 2^64 storage. The problem with 3DES, is it's
    high computational cost.

    On Wednesday 13 March 2002 08:54 pm, jack xiao wrote:
    > Hi,
    >
    > Can anybody show me some resource about the comparison between AES and 3DES
    > or DES?
    >
    > Thanks a lot!
    >
    > Jack
    > 

    -- 

    John R. Shannon
johnjohnrshannon.com

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