Is there a way to switch from AES to XChaCha20

**Is your feature request related to a problem? Please describe.**
larger hive boxes that are ecnypted are slow.

**Describe the solution you'd like**
If we can use xchacha we can improve laoding speeds of huge boxes which are encrypted by several times.

**Describe alternatives you've considered**
A way to choose xchacha20 as encryption algo.

I can give a try if you can give a hint about how to do it and will add pull request.

The issue names no files, tests, or entry points. Start by locating Hive's existing encryption implementation and determining how encrypted boxes select and store their algorithm. Before coding, clarify compatibility, migration, and acceptance criteria for choosing XChaCha20; the issue currently does not define what done looks like.

Written by the indexing model from the issue text.