From: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
To: Mimi Zohar <zohar@linux.ibm.com>, linux-integrity@vger.kernel.org
Cc: Roberto Sassu <roberto.sassu@huawei.com>,
Vitaly Chikunov <vt@altlinux.org>,
Patrick Uiterwijk <puiterwi@redhat.com>,
Petr Vorel <pvorel@suse.cz>
Subject: Re: [RFC PATCH 0/8] ima-evm-utils: calculate per TPM bank template digest
Date: Fri, 21 Feb 2020 16:11:19 -0800 [thread overview]
Message-ID: <ed6849bf-0988-3807-1b8f-151871f702d1@linux.microsoft.com> (raw)
In-Reply-To: <1582310338-1562-1-git-send-email-zohar@linux.ibm.com>
Hi Mimi,
> IMA currently extends the different TPM banks by padding/truncating the
> SHA1 template digest. Although the IMA measurement list only includes
> the SHA1 template digest, the template digest could be re-calculated
> properly for each bank. Roberto Sassu's proposed "ima: support stronger
> algorithms for attestation" kernel patch set makes this change.
>
> In order to test the proposed kernel change, this patch set walks the
> IMA measurement list, re-calculating the per TPM bank template digest
> and extending the TPM bank PCR with the bank specific digest. The last
> step, after walking the measurement list, is comparing the the resulting
> TPM per bank PCR values with the actual TPM per bank PCR values.
I have built the kernel with Roberto's patch set and also built evmctl
with your patch set.
Could you please include an example for how evmctl can be used to test
Roberto's change?
thanks,
-lakshmi
next prev parent reply other threads:[~2020-02-22 0:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-21 18:38 [RFC PATCH 0/8] ima-evm-utils: calculate per TPM bank template digest Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 1/8] ima-evm-utils: treat unallocated banks as an error Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 2/8] ima-evm-utils: increase the size of "zero" and "fox" variables Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 3/8] ima-evm-utils: calculate the digests for multiple TPM banks Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 4/8] ima-evm-utils: add support in tpm2_read_pcrs to read different " Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 5/8] ima-evm-utils: read the PCRs for the requested " Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 6/8] ima-evm-utils: compare re-calculated PCRs with the TPM values Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 7/8] ima-evm-utils: use a common bank variable for TPM 1.2 and TPM 2.0 Mimi Zohar
2020-02-21 18:38 ` [RFC PATCH 8/8] ima-evm-utils: remove TPM 1.2 specific code Mimi Zohar
2020-02-22 0:11 ` Lakshmi Ramasubramanian [this message]
2020-02-23 1:12 ` [RFC PATCH 0/8] ima-evm-utils: calculate per TPM bank template digest Mimi Zohar
2020-02-24 16:23 ` Lakshmi Ramasubramanian
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ed6849bf-0988-3807-1b8f-151871f702d1@linux.microsoft.com \
--to=nramas@linux.microsoft.com \
--cc=linux-integrity@vger.kernel.org \
--cc=puiterwi@redhat.com \
--cc=pvorel@suse.cz \
--cc=roberto.sassu@huawei.com \
--cc=vt@altlinux.org \
--cc=zohar@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.