From: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
To: Mimi Zohar <zohar@linux.ibm.com>, Sasha Levin <sashal@kernel.org>
Cc: linux-integrity@vger.kernel.org,
Matthew Garrett <mjg59@google.com>,
jamorris@linux.microsoft.com, kgoldman@us.ibm.com, "Wiseman,
Monty (GE Global Research, US)" <monty.wiseman@ge.com>,
Roberto Sassu <roberto.sassu@huawei.com>,
Greg KH <gregkh@linuxfoundation.org>
Subject: Re: [PATCH 0/1] KEYS: Measure keys in trusted keyring
Date: Fri, 4 Oct 2019 17:10:11 -0700 [thread overview]
Message-ID: <382dfa7b-a5f9-01e3-0624-9ecd526557bb@linux.microsoft.com> (raw)
In-Reply-To: <1570226287.5046.114.camel@linux.ibm.com>
On 10/4/19 2:58 PM, Mimi Zohar wrote:
> The measurements could be added to an IMA pending measurement
> workqueue, until the TPM is enabled, assuming there is a TPM, and then
> processed. All of this code would be within IMA.
Good point. I will look into this.
>> I prefer gathering data on trusted keys in ima_init, but gate it by IMA
>> policy and follow the other coding guidelines you have suggested earlier
>> (similar to the approach taken for kexec_cmdline measurement).
>
> So your intention is only to measure the initial keys added to these
> keyrings, not anything subsequently added to the secondary keyring?
I am currently measuring only the initial keys. But I think including
the ones added subsequently is a good idea.
> Defining an LSM/IMA hook to measure keys, based on policy, seems
> cleaner and more useful.
I agree.
thanks,
-lakshmi
next prev parent reply other threads:[~2019-10-05 0:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-28 0:27 [PATCH 0/1] KEYS: Measure keys in trusted keyring Lakshmi Ramasubramanian
2019-08-28 0:27 ` [PATCH 1/1] " Lakshmi Ramasubramanian
2019-09-02 22:04 ` Mimi Zohar
2019-08-29 1:11 ` [PATCH 0/1] " Mimi Zohar
2019-08-30 2:43 ` Lakshmi Ramasubramanian
2019-08-30 18:41 ` Mimi Zohar
2019-09-03 15:54 ` Lakshmi Ramasubramanian
2019-09-09 13:31 ` Mimi Zohar
2019-09-09 21:34 ` James Morris
2019-09-19 13:18 ` Sasha Levin
2019-09-19 17:12 ` Mimi Zohar
2019-10-04 19:29 ` Lakshmi Ramasubramanian
2019-10-04 19:57 ` Mimi Zohar
2019-10-04 20:10 ` Lakshmi Ramasubramanian
2019-10-04 21:58 ` Mimi Zohar
2019-10-05 0:10 ` Lakshmi Ramasubramanian [this message]
2019-10-06 13:17 ` Mimi Zohar
2019-10-07 15:03 ` Lakshmi Ramasubramanian
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