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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