[PATCH] ecc: support Montgomery curve for gcry_mpi_ec_mul_point

[Werner Koch]

On Fri,  8 Aug 2014 06:08, gniibe at fsij.org said:

> I don't know if we should support gcry_mpi_ec_curve_point when it's
> x-coordinate only for Montgomery curve.  It would be OK always return
> true for Montgomery curve.

For a correct result we should evaluate the equation and show that Y is
a square.


Salam-Shalom,

   Werner


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