mount.cifs fails to negotiate AES-256-GCM but works when enforced via sysfs or modprobe options

[Steve French]

That was a typo, I meant encryption

Thanks,

Steve

On Wed, Oct 22, 2025, 2:02 AM Andreas Schneider <asn at samba.org> wrote:

> On Tuesday, 21 October 2025 19:45:17 Central European Summer Time Steve
> French
> via samba-technical wrote:
> > Good catch - this looks very important.
> >
> > Do you remember if Samba support gcm256 signing?
>
> We support AES-128-GMAC signing.
>
> AES256-GCM is for encryption not signing.
>
> --
> Andreas Schneider                      asn at samba.org
> Samba Team                             www.samba.org
> GPG-ID:     8DFF53E18F2ABC8D8F3C92237EE0FC4DCC014E3D
>
>
>