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Date: Fri, 8 Mar 2013 08:19:18 +0100
From: Jan Starke <>
Subject: Re: Cisco - Password type 4 - SHA256

Hi Vlatko,

Do you have the possibility of setting an own type-4 password? If so,
you could also calculate the SHA256 hash of the password you used and
compare this with Cisco's value. If both are equal, you can assume
that Cisco uses a simple SHA256.

Would you be happy the share your results here?

Regards, Jan

2013/3/6 Vlatko Kosturjak <>:
> Hello!
> Anyone had experience with Cisco password type 4 which should be SHA256?
> By looking at the Cisco manuals:
> It says:
> 4--Specifies an SHA-256 encrypted secret string. The SHA256 secret string is copied from the router configuration
> I see others are also questioning what kind of SHA256 it is:
> Any info? Somebody already working on this in john?
> Thanks in advance,
> --
> Vlatko Kosturjak - KoSt

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