On Fri, Apr 23, 2021 at 11:12:45AM -0400, Stefan Berger wrote: > 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 > > v4: > - extending 'depends on' with MODULES to (IMA_APPRAISE_MODSIG && MODULES) > > v3: > - added missing OIDs for ECDSA signed hashes to pkcs7_sig_note_pkey_algo > - added recommendation to use string hash to Kconfig help text > > 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 | 26 ++++++++++++++++++++++++++ > certs/Makefile | 14 ++++++++++++++ > crypto/asymmetric_keys/pkcs7_parser.c | 8 ++++++++ > 3 files changed, 48 insertions(+) > > -- > 2.29.2 > > I just went through v3. My tags apply also to this version. /Jarkko
