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View Code? Open in Web Editor NEWinfrastructure for unifying access to keys on the file system and HSMs
Home Page: https://pretalx.com/openembedded-workshop-2023/talk/3C8MFF/
License: MIT License
infrastructure for unifying access to keys on the file system and HSMs
Home Page: https://pretalx.com/openembedded-workshop-2023/talk/3C8MFF/
License: MIT License
meta-code-signing provides infrastructure for unifying access to keys on the file system and HSMs. This repository contains two layers: meta-code-signing: A reusable layer providing signing.bbclass, which also contains some documentation. This could be upstreamed to meta-oe. meta-code-signing-demo: qemu-based demo with signed fit image, dm-verity, rauc bundle and kernel modules. A talk about this layer was held at OpenEmbedded Workshop 2023: https://pretalx.com/openembedded-workshop-2023/talk/3C8MFF/ To try the demo, run only the following steps should be needed on a system prepared for building with Yocto: $ . ./oe-init-build-env $ vi conf/local.conf ... set DL_DIR and other options needed for your system $ bitbake qemu-virt-image update-bundle $ ./qemu.sh In qemu, the following steps should happen: - barebox starts and loads the kernel FIT image - the kernel starts and mounts the dm-verity-protected rootfs - the kernel loads and checks module signatures After logging in as root, you can use rauc to check the bundle signature: rauc info /deploy/update-bundle-qemuarm.raucb or install an update: rauc install /deploy/update-bundle-qemuarm.raucb
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