linux-kernel - Re: [PATCH 3/3][RFC] tools: create power/crypto utility

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Date:   Thu, 21 Jun 2018 21:04:01 +0200
From:   Pavel Machek <pavel@....cz>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Chen Yu <yu.c.chen@...el.com>, Ted Ts'o <tytso@....edu>,
        Len Brown <len.brown@...el.com>,
        "Lee, Chun-Yi" <jlee@...e.com>, Borislav Petkov <bp@...en8.de>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Stephan Mueller <smueller@...onox.de>,
        Eric Biggers <ebiggers3@...il.com>,
        Denis Kenzior <denkenz@...il.com>
Subject: Re: [PATCH 3/3][RFC] tools: create power/crypto utility

On Thu 2018-06-21 14:10:06, Rafael J. Wysocki wrote:
> On Thu, Jun 21, 2018 at 11:01 AM, Pavel Machek <pavel@....cz> wrote:
> >
> >
> > On Wed 2018-06-20 17:40:51, Chen Yu wrote:
> >> crypto_hibernate is a user-space utility to generate
> >> 512bits AES key and pass it to the kernel via ioctl
> >> for hibernation encryption.(We can also add the key
> >> into kernel via keyctl if necessary, but currently
> >> using ioctl seems to be more straightforward as we
> >> need both the key and salt transit).
> >
> > Ah, here you go:
> >
> > https://en.wikipedia.org/wiki/Uswsusp
> 
> No, not really.
> 
> > It can already do encryption. If you see problems there, patches will
> > be gladly accepted to fix them.
> 
> By whom?

By me.

> > If you want to maintain uswsusp in kernel tree, I guess that would be
> > an option, too.
> 
> No, it isn't an option due to the dependencies on crypto libraries.

Why not?

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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