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

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Message-ID: <20180621090142.GB21807@amd>
Date:   Thu, 21 Jun 2018 11:01:42 +0200
From:   Pavel Machek <pavel@....cz>
To:     Chen Yu <yu.c.chen@...el.com>, tytso@....edu
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <len.brown@...el.com>,
        "Lee, Chun-Yi" <jlee@...e.com>, Borislav Petkov <bp@...en8.de>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Theodore Ts'o <tytso@....edu>,
        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 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

It can already do encryption. If you see problems there, patches will
be gladly accepted to fix them.

If you want to maintain uswsusp in kernel tree, I guess that would be
an option, too.

If you want to just help swsusp, I have some patches that reduce
duplicities between x86-32 and x86-64. It would be cool to clean them
up and get them merged.

> Suggested-by: "Theodore Ts'o" <tytso@....edu>

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

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