Linux-Security-Module Archive on lore.kernel.org
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* [PATCH v2 0/2] Add support for ECDSA-signed kernel modules
@ 2021-04-08 15:24 Stefan Berger
  2021-04-08 15:24 ` [PATCH v2 1/2] certs: Trigger creation of RSA module signing key if it's not an RSA key Stefan Berger
  2021-04-08 15:24 ` [PATCH v2 2/2] certs: Add support for using elliptic curve keys for signing modules Stefan Berger
  0 siblings, 2 replies; 12+ messages in thread
From: Stefan Berger @ 2021-04-08 15:24 UTC (permalink / raw)
  To: keyrings, dhowells, zohar, jarkko
  Cc: nayna, linux-integrity, linux-security-module, linux-kernel,
	Stefan Berger

This series adds support for ECDSA-signed kernel modules. It also
attempts to address a kbuild issue where a developer created an ECDSA
key for signing kernel modules and then builds an older version of the
kernel, when bisecting the kernel for example, that does not support
ECDSA keys.

The first patch addresses the kbuild issue of needing to delete that
ECDSA key if it is in certs/signing_key.pem and trigger the creation
of an RSA key. However, for this to work this patch would have to be
backported to previous versions of the kernel but would also only work
for the developer if he/she used a stable version of the kernel to which
this patch was applied. So whether this patch actually achieves the
wanted effect is not always guaranteed.

The 2nd patch adds the support for the ECSDA-signed kernel modules.

This patch depends on the ECDSA support series currently queued here:
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git/log/?h=ecc

  Stefan

v2:
  - Adjustment to ECDSA key detector string in 2/2
  - Rephrased cover letter and patch descriptions with Mimi


Stefan Berger (2):
  certs: Trigger creation of RSA module signing key if it's not an RSA
    key
  certs: Add support for using elliptic curve keys for signing modules

 certs/Kconfig                         | 25 +++++++++++++++++++++++++
 certs/Makefile                        | 14 ++++++++++++++
 crypto/asymmetric_keys/pkcs7_parser.c |  4 ++++
 3 files changed, 43 insertions(+)

-- 
2.29.2


^ permalink raw reply	[flat|nested] 12+ messages in thread

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Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-08 15:24 [PATCH v2 0/2] Add support for ECDSA-signed kernel modules Stefan Berger
2021-04-08 15:24 ` [PATCH v2 1/2] certs: Trigger creation of RSA module signing key if it's not an RSA key Stefan Berger
2021-04-08 17:15   ` Mimi Zohar
2021-04-08 19:19     ` Stefan Berger
2021-04-08 21:34       ` Mimi Zohar
2021-04-08 15:24 ` [PATCH v2 2/2] certs: Add support for using elliptic curve keys for signing modules Stefan Berger
2021-04-08 17:15   ` Mimi Zohar
2021-04-20 14:03   ` Jessica Yu
2021-04-20 21:02     ` Stefan Berger
2021-04-21 12:52       ` Jessica Yu
2021-04-21 12:54         ` Stefan Berger
2021-04-21 12:58           ` Jessica Yu

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