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Date: Tue, 10 Dec 2013 18:52:16 +0100
From: CodesInChaos <codesinchaos@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] IETF draft

On Tue, Dec 10, 2013 at 6:45 PM, Poul-Henning Kamp <phk@....freebsd.dk> wrote:
>         output = slow_hash(site_key + salt + password)

Personally I prefer output = encrypt(site_key, slow_hash(salt, password)). Since

* Key doesn't need to integrated into the hashing scheme
* Key can be changed without access to the password
* Key can be put into a HSM (which only allows encryption, not
decryption or export) which can't afford to compute the slow hash

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