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Date: Mon, 15 Sep 2014 13:53:33 -0400
From: Justin Cappos <>
To: discussions <>
Cc: polypasswordhasher-dev <>
Subject: Re: [PHC] PolyPassHash is broken

There are a lot of ways you can configure PPH.

It's possible that you can have the normal user accounts log in right away
(using partial verification), but block administrator logins until a
threshold have provided passwords.  Alternatively, you can let admins with
TFA / special questions log in, but not those with only the partial
verification match.

You can mix and match depending on what makes sense for your specific
server / deployment scenario.

This has been a useful discussion.  We have a few more configuration
options to add...


On Mon, Sep 15, 2014 at 12:48 PM, Tony Arcieri <> wrote:

> On Mon, Sep 15, 2014 at 9:46 AM, Bill Cox <>
> wrote:
>> Would something like that work?
> Unattended boot is pretty essential for any mission critical system, so
> probably not.
> There are other ways to solve this problem though, like a hardware device
> that is only accessible at the time a computer boots.
> --
> Tony Arcieri

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