linux-kernel - Re: [Patch 3/7] integrity: EVM as an integrity service provider

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Message-ID: <20070325121321.GA8550@ucw.cz>
Date:	Sun, 25 Mar 2007 12:13:22 +0000
From:	Pavel Machek <pavel@....cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, safford@...son.ibm.com,
	serue@...ux.vnet.ibm.com, kjhall@...ux.vnet.ibm.com,
	zohar@...ibm.com
Subject: Re: [Patch 3/7] integrity: EVM as an integrity service provider

Hi!

> > +++ linux-2.6.21-rc4-mm1/security/evm/Kconfig
> > @@ -0,0 +1,17 @@
> > +config INTEGRITY_EVM
> > +	boolean "EVM support"
> > +	depends on INTEGRITY && KEYS
> > +	select CRYPTO_HMAC
> > +	select CRYPTO_MD5
> > +	select CRYPTO_SHA1
> > +	default 0
> > +	help
> > +	  The Extended Verification Module is an integrity provider.
> > +	  An extensible set of extended attributes, as defined in
> > +	  /etc/evm.conf, are HMAC protected against modification
> > +	  using the TPM's KERNEL ROOT KEY, if configured, or with a
> > +	  pass-phrase.  Possible extended attributes include authenticity,
> > +	  integrity, and revision level.

What is identity provider good for? Can you explain it a bit more, or
perhaps point to Doc*/ somewhere?
							Pavel

-- 
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