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Date: Tue, 06 Oct 2015 09:51:15 +0000
From: Jean-Philippe Aumasson <>
To: "" <>
Subject: Re: [PHC] Argon2 code in C

Great, thanks!

The return values of pthread_join() are collected but not checked, choose
one :)

There's still the clang bug that was reported privately.

On Tue, Oct 6, 2015 at 10:07 AM Dmitry Khovratovich <>

> Dear all,
> we have finished porting the Argon2 code to C99 (
> ) , so
> everyone who wants to play with it in the C-only environment is welcome.
> The multithreading is implemented with pthreads, but performance is not
> quite satisfactory (slower than the C++11 code). We'll try also with OpenMP
> and report how it goes. The folder structure has been changed as well to
> accomodate future implementations. The C99 implementation also comes in the
> reference and optimized version (make OPT=TRUE), though the difference is
> not significant (multithreading is implemented in the code shared by them).
> Testing against test vectors has been automatized, you can now run "make
> check-tv" from either C99 or C++11 folders.
> We plan to allow up to 2^32 threads and separate them from lanes in the
> next update, hopefully this week.
> --
> Best regards,
> Dmitry, Daniel

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