Privacy level

[radumarias]

This controls the privacy level in the way of how we hide the data like file size, files count, directory structure.

Levels

Standard
- name padding: add padding to files and dirs names so that all have the same encrypted length

Partial
- minimal impact on disk overhead
- add some dummy data to chunks files
- add some dummy file chunks
- add some dummy folders

Hide everything
- considerable impact on disk overhead, will use quite more space
- add quite large random number of dummy data to chunks files
- add add quite big random number of dummy file chunks
- add add quite big random number of dummy folders