tree 5a5afb1096acc6616037bc05aa9163bf87f91e84
parent 72a8c9e7dcca83a17c2c8429311822ab6bdbc450
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1573729149 +0100
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1574347042 +0100

Centralize everything to EccPoint_mult_safer()

This will make easier to add future counter-measures in a single place.

In practice this change means that:

- compute_public_key() now uses projective coordinate randomisation, which it
  should as this is a protection against Template Attacks for example.
- mult_safer() now checks that the result is not the point at infinity, which
  it can as the result is indeed never expected to be that