Fix side channel in ecp_nistz256-armv8.pl
authorFangming.Fang <fangming.fang@arm.com>
Mon, 30 Dec 2019 12:15:37 +0000 (12:15 +0000)
committerNicola Tuveri <nic.tuv@gmail.com>
Sun, 5 Jan 2020 06:39:23 +0000 (08:39 +0200)
commit940c5888a2510403ae6178581d9280f0b8ef700b
treee2032c1d2694ae39474974308db53277af9f55df
parent38be93f6bf86ef51fc832cadecaad8f7c1f8feb9
Fix side channel in ecp_nistz256-armv8.pl

This change addresses a potential side-channel vulnerability in
the internals of nistz256 low level operations for armv8.

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/9239)

(cherry picked from commit f5a659b6dfcc735a62c712dcca64d116d2289b97)
crypto/ec/asm/ecp_nistz256-armv8.pl