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Date: Mon, 4 May 2015 19:08:22 +0200 (CEST)
From: Stefan.Lucks@...-weimar.de
To: discussions@...sword-hashing.net
Subject: Re: [PHC] Maximising Pseudo-Entropy versus resistance to Side-Channel
 Attacks

On Mon, 4 May 2015, Solar Designer wrote:

> Now our options are: use solely hashes and comparison functions that are
> side-channel safe(*) even without cryptographically random salts, or/and
> require cryptographically random salts.  The latter hardens existing
> software too - such as uses of strcmp() on password hashes in lots of
> existing software.

Not at all. Don't require cryptographically random salts, but try to 
generate them nevertheless. ;-)

THAT harends existing software too.

This is the counterpart to requiring cryptographically random salts 
without actually generating them -- which would weaken your sovtware.

So long

Stefan

------  I  love  the  taste  of  Cryptanalysis  in  the morning!  ------
uni-weimar.de/de/medien/professuren/mediensicherheit/people/stefan-lucks
--Stefan.Lucks (at) uni-weimar.de, Bauhaus-Universit├Ąt Weimar, Germany--

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