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Date: Wed, 26 Aug 2015 17:53:20 +0200
From: Dmitry Khovratovich <>
To: "" <>
Subject: Re: [PHC] Argon2 version 1.2.1 release

Hi Bill, thanks for the comments. Any code review is much appreciated.

On Wed, Aug 26, 2015 at 5:44 PM, Bill Cox <> wrote:

> - The types Argon2_i, Argon2_d, etc, should be commented in the code.  Few
> programmers will bother reading the documentation, so the code has to be
> understandable on it's own.  There needs to be some comments to help the
> programmer decide which to call.

True. We'll add that

> - I think the Argon2_id mode is currently equivalent to Argon2_d.  There's
> no place in the reference code where Argon2_id is used.  The reason the
> vectors are different is probably because the type is hashed into the
> initial derived key, as it should be.

Oops, it is a bug, the Argon2_id code got lost somewhere on the way. Will
fix ASAP.

> Overall, this seems like outstanding work.  Thanks to everyone in the
> Argon2 team for delivering a first rate solution!
> Bill

Best regards,
Dmitry Khovratovich

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