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From: Mimi Zohar <zohar@linux.ibm.com>
To: Lakshmi <nramas@linux.microsoft.com>,
	Linux Integrity <linux-integrity@vger.kernel.org>,
	David Howells <dhowells@redhat.com>,
	James Morris <jamorris@linux.microsoft.com>,
	Linux Kernel <linux-kernel@vger.kernel.org>
Cc: Balaji Balasubramanyan <balajib@linux.microsoft.com>,
	Prakhar Srivastava <prsriva@linux.microsoft.com>
Subject: Re: [PATCH 0/2] public key: IMA signer logging: Log public key of IMA Signature signer in IMA log
Date: Thu, 16 May 2019 18:45:34 -0400	[thread overview]
Message-ID: <1558046734.4507.28.camel@linux.ibm.com> (raw)
In-Reply-To: <715a9b39-0cde-1ce0-2d01-68d4fc0f5333@linux.microsoft.com>

On Wed, 2019-05-15 at 11:17 -0700, Lakshmi wrote:
> Hi Mimi,
> 
> I would like to make sure I understood your feedback.
> 
> > 
> > Why duplicate the certificate info on each record in the measurement
> > list?  Why not add the certificate info once, as the key is loaded
> > onto the .ima and .platform keyrings?
> > 
> 
> key_create_or_update function in security/keys/key.c is called to 
> add\update a key to a keyring. Are you suggesting that an IMA function 
> be called from here to add the certificate info to the IMA log?

There's an existing LSM hook in alloc_key(), but the keyring isn't
being passed.  Again a decision would need to be made as to whether
this needs to be an LSM or IMA hook.

> 
> Our requirement is that the key information is available in the IMA log 
> which is TPM backed.
> 

There's some confusion as to why adding the keys to the measurement
list is needed.  Could you respond to Ken's questions please?

Mimi


  reply	other threads:[~2019-05-16 22:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-14 17:14 [PATCH 0/2] public key: IMA signer logging: Log public key of IMA Signature signer in IMA log Lakshmi
2019-05-14 17:29 ` Mimi Zohar
2019-05-15 18:17   ` Lakshmi
2019-05-16 22:45     ` Mimi Zohar [this message]
2019-05-16 14:34 ` Ken Goldman
2019-05-17  1:29   ` Lakshmi
2019-05-17 14:41     ` Ken Goldman
2019-05-20 23:15       ` Lakshmi
2019-05-22 18:57         ` Ken Goldman
2019-05-22 19:37           ` Lakshmi

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