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Date: Sun, 9 Apr 2006 04:44:07 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: john won't load hash file...
Yesterday, I wrote:
> P.S. You do not need to specify the "--format" explicitly. In fact,
> it's better to not do that, letting John autodetect the hash type for
> you (out of ones supported in the given build of John). This option
> should only be used when there are multiple hash types present in the
> password file(s) that you pass to John.
I had overlooked one special case - namely, that "--format" is also
needed when the encodings for two distinct hash types look exactly the
same. This is the case for LM vs. NTLM vs. hex-encoded raw MD5 hashes.
So far, this only applies to builds of John with contributed patches
applied.
Maybe I should enhance John to print a warning when it sees ambiguous
hash encodings like that and "--format" is not used.
--
Alexander Peslyak <solar at openwall.com>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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