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Date: Wed, 14 Sep 2016 09:35:04 -0500
From: jfoug <>
Subject: Re: Error: wordlist contains NULL bytes - aborting

On 9/14/2016 9:11 AM, wrote:
> Thank you for the tip. My question is a little bit wider though: is 
> there any way for john to handle passwords with null character? Are 
> those password just artifacts (from a hacking attempt for example), or 
> could they be legitimate?
They are proper for the hashes listed.  I put \x40\x00\x64\x6f\x62\x32 
into a file and ran sha1 sum over it, and this is the result:

$ sha1sum in1
d2fe19d3d33ab25c335e870328faa2306a92c65b *in1

which matches the string in your input data. So that string with the 
null byte is 100% correct for that hash.  John does not handle null 
bytes in input words at all, and probably never will.

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