tree 27619f44fda5275313dade9dad2899967db8cf53
parent 3f3358ac150465fafffaf1c51c2928dd2b2018a9
author Brian Smith <brian@briansmith.org> 1458952443 -1000
committer David Benjamin <davidben@google.com> 1461193227 +0000

Avoid minor waste in |ec_GFp_nistp256_point_get_affine_coordinates|.

Avoid calculating the affine Y coordinate when the caller didn't ask
for it, as occurs, for example, in ECDH.

For symmetry and clarity, avoid calculating the affine X coordinate in
the hypothetical case where the caller only asked for the Y coordinate.

Change-Id: I69f5993fa0dfac8b010c38e695b136cefc277fed
Reviewed-on: https://boringssl-review.googlesource.com/7590
Reviewed-by: David Benjamin <davidben@google.com>