Re: [RFC V4 PATCH 00/15] Signature verification of hibernate snapshot

[Alan Stern]

On Wed, 25 Sep 2013, David Howells wrote:

> I have pushed some keyrings patches that will likely affect this to:
> 
> 	http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=keys-devel
> 
> I intend to ask James to pull these into his next branch.  If he's happy to do
> so, I can look at pulling at least your asymmetric keys patch on top of them.

This suggests a point that I raised at the Linux Plumbers conference:

Why are asymmetric keys used for verifying the hibernation image?  It
seems that a symmetric key would work just as well.  And it would be a
lot quicker to generate, because it wouldn't need any high-precision
integer computations.

Alan Stern

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