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Tue, 03 Feb 2026 05:45:24 -0800 (PST) Date: Tue, 3 Feb 2026 21:43:03 +0800 From: Coiby Xu To: David Howells Cc: Mimi Zohar , Simo Sorce , Roberto Sassu , Dmitry Kasatkin , Eric Snowberg , Eric Biggers , 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 Message-ID: References: <1783975.1769190197@warthog.procyon.org.uk> <2265997.1769782221@warthog.procyon.org.uk> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <2265997.1769782221@warthog.procyon.org.uk> On Fri, Jan 30, 2026 at 02:10:21PM +0000, David Howells wrote: >Coiby Xu 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? Yes, it's storing raw signatures + per ~20 bytes overhead including the 4-byte key ID. > >David > -- Best regards, Coiby