Re: Cracking simple password encryption

[Kaushik <kaushik () gamebox net>]

Hi David...

    on visual inspection i can see a small pattern
1) there is one extra character in the encrypted text as compared to the 
clear text
2) 1st "a" in clear results to 1st "a" in encrypted
   1st "b" in clear results to 1st "c" in encrypted
   1st "c" in clear results to 1st "e" in encrypted
--- following this logic "d" would result in "g" so and so forth...
Do give more examples

Warm Regards
Kaushik

  

> 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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