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Date: Fri, 29 Jun 2012 13:59:17 +0200
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-dev@...ts.openwall.com
Subject: Re: For some dynamic formats on linux-x86-mmx build cracking
 depends on password candidate sequence

On 06/29/2012 01:55 PM, Frank Dittrich wrote:
> All affected formats use a sequence of either
> md5(md5($p))
> or
> md5(md4($p))

Looks like this is the key.

$ ../run/john --list=subformats |grep "md[45](md[45](\$p))"
Format = dynamic_2   type = dynamic_2: md5(md5($p)) (e107)
Format = dynamic_3   type = dynamic_3: md5(md5(md5($p)))
Format = dynamic_34  type = dynamic_34: md5(md4($p))
UserFormat = dynamic_1001  type = dynamic_1001 md5(md5(md5(md5($p))))
UserFormat = dynamic_1002  type = dynamic_1002 md5(md5(md5(md5(md5($p)))))
UserFormat = dynamic_1004  type = dynamic_1004
md5(md5(md5(md5(md5(md5($p))))))
UserFormat = dynamic_1005  type = dynamic_1005
md5(md5(md5(md5(md5(md5(md5($p)))))))
UserFormat = dynamic_1006  type = dynamic_1006
md5(md5(md5(md5(md5(md5(md5(md5($p))))))))

Frank

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