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Date: Fri, 14 Aug 2015 23:57:19 +0200
From: Agnieszka Bielec <>
Subject: Re: PHC: makwa

2015-08-14 15:13 GMT+02:00 Solar Designer <>:
> On Thu, Aug 13, 2015 at 09:48:32PM +0200, Lukas Odzioba wrote:
>> 2015-08-13 21:42 GMT+02:00 Agnieszka Bielec <>:
>> > I implemented basic version of makwa on CPU (although this is a messy
>> > version so far)
>> > and have questions
>> > PHS calls makwa_hash with pre_hash=1, should I also support pre_hash=0
>> > and support both sha256 and 512 ? in PHS is makwa_init() with
>> > hard-coded parameters, support also another parameters?
>> To make it complete I guess we should support all cases, solar please
>> correct me if I am wrong.
>> The question is whether it is feasible to make 2 versions for each sha
>> function or to "multiplex" them in one format selected by hash
>> encoding. Personally I would go or the latter.
> Yes, it should be one format.  I think Makwa's use of SHA-256 or -512
> isn't performance-critical, so it shouldn't significantly affect
> benchmarks.

what to do with static const unsigned char PHC_PUB2048[] = { which is
hard-coded, also add it to the salt?

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