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SubjectRe: [PATCH v43 01/15] Linux Random Number Generator
Date
Am Freitag, 26. November 2021, 17:22:14 CET schrieb Greg Kroah-Hartman:

Hi Greg,

> On Fri, Nov 26, 2021 at 05:15:59PM +0100, Stephan Mueller wrote:
> > Am Freitag, 26. November 2021, 16:44:17 CET schrieb Greg Kroah-Hartman:
> >
> > Hi Greg,
> >
> > > On Mon, Nov 22, 2021 at 09:59:01AM -0500, Simo Sorce wrote:
> > > > Jason,
> > > > have you previously produced a list of reasoned concerns with this
> > > > patchset and direction?
> > > >
> > > > This specific email is not really useful to me to understand the
> > > > concerns as it does not contain actionable suggestion or critique.
> > > >
> > > > I personally find the direction fine, and with my distribution hat on
> > > > I
> > > > can say that FIPS is essential for us and any design must include an
> > > > option to be FIPS certifiable.
> > > >
> > > > As NIST keeps improving their testing capabilities and rigorous
> > > > cryptographic design of the CSPRNGs as well as entropy sources the
> > > > kernel must also adapt.
> > > >
> > > > Stephan is providing a path forward, and I haven't seen any other
> > > > proposal, let alone code, that provide improvements in this area.
> > > > I am pretty sure the design can be improved if there is detailed and
> > > > actionable feedback on what to change.
> > > >
> > > > I hope the path forward can be one of collaboration rather then mere
> > > > opposition.
> > >
> > > Replacement of the existing code to cut over to the new one is not
> > > collaboration, it's the exact opposite.
> > >
> > > Submitting patches to the existing codebase to implement the
> > > "requirements" is the proper way forward, why has that never been done.
> >
> > It has been attempted by Nikolai Stange without avail - no comments were
> > received, let alone it was integrated.
>
> Links to the patches and discussion please?

Please consider https://lkml.org/lkml/2020/9/21/157

One side note: the LRNG patch set does not replace random.c, but provides an
additional implementation that can be selected at compile time. I am under the
impression that is an equal approach considering other areas of the kernel
like file systems, memory allocators, and similar.

Thanks
Stephan


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