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Add HSM version file / Redis key #315
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Because: * To check if the HSM firmware should be updated, the Base image needs to know the firmware version that it contains. * From the firmware file, only the versioning counter can be read directly, but to get this information from the HSM it would need to boot into the bootloader first, which is cumbersome. * Getting the semantic version from the HSM firmware (not bootloader) and decide whether to update is less complex. * The downgrade protection using the monotonic counter is still in place when actually updating the HSM firmware. This commit: * adds the file `config/version_hsm`, containing the semantiv version * renames the file `config/version` to `config/version_bbb` for consistency * stores the HSM firmware version in Redis key `hsm:firmware:version` during build * resets this Redis key from the file on every boot
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related: #314
To check if the HSM firmware should be updated, the Base image needs to know the firmware version that it contains. From the firmware file, only the versioning counter can be read directly, but to get this information from the HSM it would need to boot into the bootloader first, which is cumbersome.
Getting the semantic version from the HSM firmware (not bootloader) and decide whether to update is less complex.
The downgrade protection using the monotonic counter is still in place when actually updating the HSM firmware.
This commit:
config/version_hsm, containing the semantiv versionconfig/versiontoconfig/version_bbbfor consistencyhsm:firmware:versionduring build