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    SubjectRe: [Patch 3/7] integrity: EVM as an integrity service provider
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    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.

    Mimi Zoharar


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