Re: Is there an equivalent to curve25519_mul for ECC keys?

Thanks a lot for the response!

As I could see, with ecc_point_mul, only the point x of the scalar r is useful for the ecdh-es computation.

The implementation was quick and easy with that :)

/Nicolas

Le 2021-08-10 à 17 h 32, Niels Möller a écrit :

Nicolas Mora nicolas@babelouest.org writes:

...

I'm wondering if there is a function of a combination of functions to perform a DH computation using ECC keys and their parameters "struct ecc_point *pub1, struct ecc_scalar *key2"?

ecc_point_mul (declared in ecc.h) is intended to do that. There's also a variant ecc_point_mul_g.

But it seems they're not properly documented in the manual.

Regards, /Niels