DES question

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staym@accessdata.com
Wed, 17 Feb 1999 18:58:32 -0700

Given plaintext P and key Kn, calculate Cn=E(Kn,P). Take a subset of
the bits of Cn and call them K(n+1). Repeat.

If DES is close to a random function, this should have a period of about
2^56. Does it? 

-- 
Mike Stay
Cryptographer / Programmer
AccessData Corp.
mailto:staym@accessdata.com

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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:18:27