Support encryption

Context

If I upload a file using youbit everyone with knowledge of youbit will be able to retrieve the file content, this is a privacy concern.

2 current solutions:

• Upload private videos
• Encrypt file locally before uploading it

That seems fine!

Proposition

But as youbit aims to be an all-in-one solution (compared to others similar tools), maybe it could be a good idea to go further to directly embed file encryption within it during "uploading process" (and thus file decryption for the reverse process)

In early development, YouBit actually had this. During one of the many re-writes I omitted the feature to focus on other challenges within the project.

It should be pretty easy to reintroduce though. Might do this someday.

you can also encrypt your files using openssl like described in here: https://stackoverflow.com/a/16056298 and then upload them