Vitaly Kuznetsov
771085291d
LUKS2 supports built-in integrity checking which may come very handy to mitigate partial rollback attacks on the storage when only some specific parts are restored to some old encrypted state. Specific use-cases like Confidential VMs may want to mandate the usage of feature e.g. on the root volume. Introduce "encryptedwithintegrity" image policy to support that. Note, due to the current libcryptsetup limitations, checking whether the feature is enabled or not for the 'file' case (e.g. DDI image as a raw file) requires setting up a loop device. To avoid that and keep dissect fully functional when working unpriviliged, implement a minimal custom LUKS header parser.
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