linux-kernel - Re: IMA and PQC

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Message-ID: <2265997.1769782221@warthog.procyon.org.uk>
Date: Fri, 30 Jan 2026 14:10:21 +0000
From: David Howells <dhowells@...hat.com>
To: Coiby Xu <coxu@...hat.com>
Cc: dhowells@...hat.com, Mimi Zohar <zohar@...ux.ibm.com>,
    Simo Sorce <simo@...hat.com>,
    Roberto Sassu <roberto.sassu@...wei.com>,
    Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
    Eric Snowberg <eric.snowberg@...cle.com>,
    Eric Biggers <ebiggers@...nel.org>, linux-integrity@...r.kernel.org,
    linux-crypto@...r.kernel.org, keyrings@...r.kernel.org,
    linux-modules@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: IMA and PQC

Coiby Xu <coxu@...hat.com> wrote:

> Take latest fresh CentOS Stream 10 x86_64 KVM guest as example, without any
> file system optimization, extra ~189MB disk space is needed if all files in
> /usr signed using by ML-DSA-65 where the disk size is 50G.

Is that storing raw signatures rather than PKCS#7 wrapped signatures?

David