linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Lakshmi Ramasubramanian <nramas@microsoft.com>
To: "zohar@linux.ibm.com" <zohar@linux.ibm.com>,
	"linux-integrity@vger.kernel.org"
	<linux-integrity@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: Portable Executable (PE) Signature Validation and Measurement for KEXEC system call using IMA
Date: Mon, 25 Mar 2019 17:52:52 +0000	[thread overview]
Message-ID: <DM6PR21MB130526848C86A7390FB3BF53C35E0@DM6PR21MB1305.namprd21.prod.outlook.com> (raw)
In-Reply-To: <BYAPR21MB1301CBCD4956476F8F2F0FC4C3430@BYAPR21MB1301.namprd21.prod.outlook.com>

Hello Mimi,

Could you please let me know if you have any concerns with this approach?

Thanks,
 -lakshmi

-----Original Message-----
From: linux-integrity-owner@vger.kernel.org <linux-integrity-owner@vger.kernel.org> On Behalf Of Lakshmi Ramasubramanian
Sent: Friday, March 22, 2019 10:39 AM
To: linux-integrity@vger.kernel.org; linux-kernel@vger.kernel.org
Subject: Portable Executable (PE) Signature Validation and Measurement for KEXEC system call using IMA

Hello,

When loading the new kernel image file for executing KEXEC system call, we would like to verify that the kernel image file is signed and the signer certificate is valid. 

If the kernel image file is in Portable Executable (PE) format we want to validate the PE Signature and measure the signer X.509 certificate (Extend as part of IMA Template defaulting to PCR 10, if not otherwise set,  and the IMA measurement log).

We plan to use Integrity Measurement Architecture (IMA) for the above.

Please let us know if anyone is already working on a patch set for such a functionality.

I am aware of the work that Thiago Jung Bauermann @ IBM is doing for "Appended signatures support for IMA appraisal" 
(Web link given below)

    https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flkml.org%2Flkml%2F2018%2F12%2F12%2F1049&amp;data=02%7C01%7Cnramas%40microsoft.com%7C2791f20f548e4502060108d6aeed54a8%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636888731683001667&amp;sdata=ai2KrDlnyyEqJfLS9kYUw0ebUTbq7Y5dTqMciwSRZ%2BM%3D&amp;reserved=0

Thank You.
 -lakshmi

  reply	other threads:[~2019-03-25 17:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-22 17:39 Portable Executable (PE) Signature Validation and Measurement for KEXEC system call using IMA Lakshmi Ramasubramanian
2019-03-25 17:52 ` Lakshmi Ramasubramanian [this message]
2019-03-25 19:27 ` Mimi Zohar
2019-03-25 21:00   ` 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=DM6PR21MB130526848C86A7390FB3BF53C35E0@DM6PR21MB1305.namprd21.prod.outlook.com \
    --to=nramas@microsoft.com \
    --cc=linux-integrity@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).