On Fri, Oct 18, 2024 at 01:44:19AM -0400, Adrian Vovk wrote:
> > So just run a target on each partition.
> 
> 
> That has different semantics. If I encrypt each virtual partition there's
> nothing encrypting the metadata around the virtual partitions. Of course,
> this is a rather contrived example but point stands, the semantics are
> different.

Then you set up an dm-crype device mapper table for the partition table as
well.

> > This is the prime example of why allowing higher layers to skip
> > encryption is a no-go.
> >
> 
> In what way does that break the file system's security model? Could you
> elaborate on what's objectionable about the behavior here?

Because you are now bypassing encryption for certainl LBA ranges in
the file system based on hints/flags for something sitting way above
in the stack.


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