Re: Encrypted repositories

Enrico Weigelt [off-list ref] writes:

* blobs are encrypted with their (original) content hash as
  encryption keys

What does this even mean?

Is it expected that anybody who has access to the repository can
learn names of objects (e.g. by running "ls .git/objects/??/")? If
so, from whom are you protecting your repository?

How does this encryption interact with delta compression employed in
pack generation?