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Cracking simple password encryption

Subject: Cracking simple password encryption
Date: Wed, 21 Dec 2005 17:23:07 -0800
Hi All,

I am trying to figure out the password encryption scheme used by some
software and haven't had much luck yet.  I was wondering if anyone on
here might be able to give me some pointers.

A little while ago I remember some discussion on this list (I think it
was this list anyway) about decrypting passwords that were XOR
encrypted.  I can't seem to find that discussion though.

I have a few example passwords and I can see a pattern emerging:

password        crypted
a               aQ==
b               cg==
c               ew==
aa              aWo=
ab              aXE=
cc              e3g=
aaa             aWpq
aab             aWpx
abb             aXFx
bbb             cnFx

Thanks,
David

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