Libgcrypt and libgmp

[Werner Koch]

On Fri,  5 Sep 2014 00:14, dbaryshkov at gmail.com said:

> dual-licensed under GPLv2+ or LGPLv3+. As far as I understand, this
> licensing is compatible
> with libgcrypt LGPLv2.1+.

Nevertheless I like to stick to LGPLv2.1+.

> Surprisingly even replacing several asm-coded functions resulted in
> nearly 20-25% speed
> increase (according to tests/benchmark pubkey). Do such patches have a
> chance to be

That obviously depends on on the architecture.  We have quite new code
for amd64.

Libgcrypt (formerly GnuPG) are based on GMP version 2 which is 20 years
old.  Back then there was no public development and the later
improvements with GMP 3 never made it to Libgcrypt because the build
system of GMP was heavily changed and nobody volunteered to convert that
to the Libgcrypt system.  Might have also been a linceses issue - I
can't remember.

> reviewed & accepted, or it is a waste of time, as you would prefer to
> keep libgcrypt
> independent of libgmp. I'm not changing the gcry_mpi_t internals, or

Thanks for the offer.  However, I do not want to have a dependency on
another library.  Further, forthcoming improvements will likely be all
in the ECC area and optimization is curve dependent.


Salam-Shalom,

   Werner

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