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SubjectRe: [Patch 3/7] integrity: EVM as an integrity service provider
On Sun, 25 Mar 2007 23:13:02 -0400 Mimi Zohar <zohar@linux.vnet.ibm.com> wrote:

> On Sun, 2007-03-25 at 00:16 -0800, Andrew Morton wrote:
> > On Fri, 23 Mar 2007 12:09:36 -0400 Mimi Zohar <zohar@linux.vnet.ibm.com> wrote:
> >
> > > +++ 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.
> > > +
> > > + If you are unsure how to answer this question, answer N.
> > > +
> >
> > Is no dependency upon TPM needed?
>
> It's obviously preferable to have and use a TPM, but if one is not
> available you can use a pass-phrase.
>

So it will compile and run OK with CONFIG_TPM=n? And with
CONFIG_INTEGRITY_EVM=y, CONFIG_TPM=m?

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