From: David Howells <dhowells@redhat.com>
To: Petr Pavlu <petr.pavlu@suse.com>
Cc: dhowells@redhat.com,
James Bottomley <James.Bottomley@HansenPartnership.com>,
David Woodhouse <dwmw2@infradead.org>,
Luis Chamberlain <mcgrof@kernel.org>,
Daniel Gomez <da.gomez@kernel.org>,
Sami Tolvanen <samitolvanen@google.com>,
Aaron Tomlin <atomlin@atomlin.com>,
keyrings@vger.kernel.org, linux-modules@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] sign-file: Remove support for signing with PKCS#7
Date: Wed, 12 Nov 2025 15:36:57 +0000 [thread overview]
Message-ID: <1234920.1762961817@warthog.procyon.org.uk> (raw)
In-Reply-To: <e624c242-b297-4bb7-a76a-cbb18b027472@suse.com>
Petr Pavlu <petr.pavlu@suse.com> wrote:
> In practice, since distributions now typically sign modules with SHA-2, for
> which sign-file already required CMS API support, removing the USE_PKCS7
> code shouldn't cause any issues.
We're looking at moving to ML-DSA, and the CMS support there is slightly dodgy
at the moment, so we need to hold off a bit on this change.
Patch 1, removing the option to sign with SHA-1 from the kernel is fine, but
doesn't stop things that are signed with SHA-1 from being verified.
David
next prev parent reply other threads:[~2025-11-12 15:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-11 15:48 [PATCH 0/2] module: Remove SHA-1 support for module signing Petr Pavlu
2025-11-11 15:48 ` [PATCH 1/2] " Petr Pavlu
2025-11-11 22:37 ` Aaron Tomlin
2025-11-11 15:48 ` [PATCH 2/2] sign-file: Remove support for signing with PKCS#7 Petr Pavlu
2025-11-11 16:53 ` James Bottomley
2025-11-12 13:51 ` Petr Pavlu
2025-11-12 15:05 ` James Bottomley
2025-11-12 15:36 ` David Howells [this message]
2025-11-12 15:47 ` James Bottomley
2025-11-12 15:52 ` David Howells
2025-11-12 15:58 ` James Bottomley
2026-02-02 11:24 ` [PATCH] sign-file, pkcs7: Honour the hash parameter to sign-file David Howells
2026-02-02 11:27 ` David Howells
2026-02-02 12:25 ` Petr Pavlu
2026-02-02 17:01 ` Sami Tolvanen
2025-11-11 16:22 ` [PATCH 0/2] module: Remove SHA-1 support for module signing Sami Tolvanen
2025-12-22 20:24 ` Sami Tolvanen
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