Working with password protected, encrypted RAR files

Dear Kodi Forum,

I have lots of MKV files stored with their metadata on a WEBDAV server that I do not have full control over.

What I want to do is password protect and encrypt each MKV file with its associated metadata as a single RAR file with the file names encrypted in the archive. The intention is to use the same password for every file.

I then would like to set up the WEBDAV file source and provide the password for the files so Kodi is able to read the content of the RAR files and import them in to the Kodi Library.

I have tried to set Kodi up to do this but as yet I have failed. Is this possible or will I have to raise this as a feature request?

Many Thanks in advance,