Re: [PATCH 0/1] use crc32 instead of md5 for hibernation e820 integrity check

Christophe Leroy
2021-04-01T18:55:12Z

Le 01/04/2021 à 14:24, Chris von Recklinghausen a écrit :
> Currently, suspend on x86_64 fails when FIPS mode is enabled because it uses md5
> to generate a digest of the e820 region. MD5 is not FIPS compliant so an error
> is reported and the suspend fails.
>
> MD5 is used only to create a digest to ensure integrity of the region, no actual
> encryption is done. This patch set changes the integrity check to use crc32
> instead of md5 since crc32 is available in both FIPS and non-FIPS modes.

Why not put all those explanations in the patch itself ?

Because text in the cover is lost, so a cover is not really usefull for a single patch.

>
> Chris von Recklinghausen (1):
> use crc32 instead of md5 for hibernation image integrity check
>
> arch/x86/power/hibernate.c | 31 +++++++++++++++++--------------
> 1 file changed, 17 insertions(+), 14 deletions(-)
>