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From: David Howells <dhowells@redhat.com>
To: Mimi Zohar <zohar@linux.ibm.com>
Cc: dhowells@redhat.com, Simo Sorce <simo@redhat.com>,
	Roberto Sassu <roberto.sassu@huawei.com>,
	Dmitry Kasatkin <dmitry.kasatkin@gmail.com>,
	Eric Snowberg <eric.snowberg@oracle.com>,
	Eric Biggers <ebiggers@kernel.org>,
	linux-integrity@vger.kernel.org, linux-crypto@vger.kernel.org,
	keyrings@vger.kernel.org, linux-modules@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: IMA and PQC
Date: Mon, 26 Jan 2026 21:36:59 +0000	[thread overview]
Message-ID: <1988760.1769463419@warthog.procyon.org.uk> (raw)
In-Reply-To: <821cb2becf70b2dcb903e74685643f8b60a5cbb6.camel@linux.ibm.com>

Mimi Zohar <zohar@linux.ibm.com> wrote:

> > Further, we need to think how we're going to do PQC support in IMA -
> > particularly as the signatures are so much bigger and verification slower.
> 
> Perhaps, but these same reasons would apply to kernel modules, firmware, and
> the kernel image.  Why would IMA be special?!

Scale.  I wouldn't expect more than a couple of hundred or so kernel module
and firmware signatures - and, for the most part, that would be done once
during boot.  On the other hand, I'm assuming that a lot more IMA signatures
might need checking and maybe more frequently.

David


  reply	other threads:[~2026-01-26 21:37 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-23 17:43 IMA and PQC David Howells
2026-01-26 21:04 ` Mimi Zohar
2026-01-26 21:36   ` David Howells [this message]
2026-01-26 22:54     ` Mimi Zohar
2026-01-30 11:17 ` Coiby Xu
2026-01-30 14:10   ` David Howells
2026-02-03 13:43     ` Coiby Xu
2026-01-30 20:31   ` Johannes Wiesböck
2026-02-03 13:32     ` Coiby Xu
2026-02-25 14:25       ` Stefan Berger
2026-02-26  0:10         ` Eric Biggers
2026-02-26 12:42           ` Stefan Berger
2026-02-26 14:16             ` Stefan Berger
2026-02-26 15:27               ` Simo Sorce
2026-02-26 16:58                 ` Eric Biggers
2026-02-26 17:22                   ` Stefan Berger
2026-02-26 18:32                     ` Eric Biggers
2026-02-26 19:21                       ` Stefan Berger
2026-02-26 19:44                         ` Eric Biggers
2026-02-26 21:05                           ` Stefan Berger
2026-02-26 18:42                     ` Simo Sorce

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