On Wed, 5 Aug 2020, Mimi Zohar wrote:
If block layer integrity was enough, there wouldn't have been a
need
for fs-verity. Even fs-verity is limited to read only filesystems,
which makes validating file integrity so much easier. From the
beginning, we've said that fs-verity signatures should be included in
the measurement list. (I thought someone signed on to add that support
to IMA, but have not yet seen anything.)
Going forward I see a lot of what we've accomplished being incorporated
into the filesystems. When IMA will be limited to defining a system
wide policy, I'll have completed my job.
What are your thoughts on IPE being a standalone LSM? Would you prefer to
see its functionality integrated into IMA?