linux-kernel - Re: [PATCH V4 13/15] Hibernate: introduced SNAPSHOT_SIG

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Date:	Thu, 26 Sep 2013 09:43:39 +0800
From:	joeyli <jlee@...e.com>
To:	Pavel Machek <pavel@....cz>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-crypto@...r.kernel.org,
	opensuse-kernel@...nsuse.org, David Howells <dhowells@...hat.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Len Brown <len.brown@...el.com>,
	Josh Boyer <jwboyer@...hat.com>,
	Vojtech Pavlik <vojtech@...e.cz>,
	Matt Fleming <matt.fleming@...el.com>,
	James Bottomley <james.bottomley@...senpartnership.com>,
	Greg KH <gregkh@...uxfoundation.org>, JKosina@...e.com,
	Rusty Russell <rusty@...tcorp.com.au>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	"H. Peter Anvin" <hpa@...or.com>, Michal Marek <mmarek@...e.cz>,
	Gary Lin <GLin@...e.com>, Vivek Goyal <vgoyal@...hat.com>
Subject: Re: [PATCH V4 13/15] Hibernate: introduced SNAPSHOT_SIG_HASH
 config for select hash algorithm

於 三，2013-09-18 於 15:45 +0200，Pavel Machek 提到：
> On Sun 2013-09-15 08:56:59, Lee, Chun-Yi wrote:
> > This patch introduced SNAPSHOT_SIG_HASH config for user to select which
> > hash algorithm will be used during signature generation of snapshot.
> 
> This series is big enough already... and who is going to test it?

The hash config not just for testing, it's relate to the performance and
secure between different hash algorithms.

There have person raised in LPC say he don't like SHA algorithm.

> There's no need to make hash configurable. Just select one that works.
> 	
> 									Pavel
> 

SHA1 has good performance, and SHA512 has better security, which one you
like it?


Thanks a lot!
Joey Lee



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