lkml.org 
[lkml]   [2021]   [Mar]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: Fix hibernation in FIPS mode?
On Tue, Mar 30, 2021 at 12:14 AM Dexuan Cui <decui@microsoft.com> wrote:
>
> Hi,
> MD5 was marked incompliant with FIPS in 2009:
> a3bef3a31a19 ("crypto: testmgr - Skip algs not flagged fips_allowed in fips mode")
> a1915d51e8e7 ("crypto: testmgr - Mark algs allowed in fips mode")
>
> But hibernation_e820_save() is still using MD5, and fails in FIPS mode
> due to the 2018 patch:
> 749fa17093ff ("PM / hibernate: Check the success of generating md5 digest before hibernation")
>
> As a result, hibernation doesn't work when FIPS is on.
>
> Do you think if hibernation_e820_save() should be changed to use a
> FIPS-compliant algorithm like SHA-1?

I would say yes, it should.

> PS, currently it looks like FIPS mode is broken in the mainline:
> https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg49414.html

\
 
 \ /
  Last update: 2021-03-30 16:48    [W:0.058 / U:0.212 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site