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Message-ID: <CAGiyFddGv8whBg6L=44qtRH4H8N9Cr0pFGnA2FRd+7gF8ho6wA@mail.gmail.com>
Date: Mon, 27 Apr 2015 13:54:27 +0000
From: Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] New package for Makwa
https://password-hashing.net/candidates.html updated, sorry for the delay
On Thu, Apr 23, 2015 at 3:31 AM Thomas Pornin <pornin@...et.org> wrote:
> Hello,
>
> I have updated the Makwa specification and code. New version of the
> submission package is available here:
>
> http://www.bolet.org/makwa/Makwa-PHC-20150422.zip
>
> A direct link to the specification is also available here:
>
> http://www.bolet.org/makwa/makwa-spec-20150422.pdf
>
>
> MAKWA HAS NOT CHANGED. This is not a "tweak". All previous test vectors
> remain fully valid. What has changed is the following:
>
> - I have much expanded the discussion on the delegation mechanism to
> include the "information theoretic secure" method from Adam Back. I
> describe it, and some optimizations, and how that method and my
> original delegation system are really sub-cases of the same thing.
> This results in a total of three variants for the delegation, with
> distinct performance. See section 4 of the specification.
>
> - The reference implementations (both C and Java) now implement all
> three delegation mechanisms (the old one, which is still the one I
> recommend on a general basis, and the two new "information theoretic
> secure" systems).
>
> - The formats I defined for public keys, private keys and delegation
> parameters have been expanded to better support the alternate
> delegation mechanisms.
>
> - Private key generation was modified to also produce a generator for
> invertible quadratic residues.
>
> The new code is still backward compatible with the original one (at both
> source code and binary levels). The old formats for keys and parameters
> are still fully supported.
>
>
> --Thomas Pornin
>
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