Hi, I would like to encrypt some files I have on my pcs.
The intention is to encrypt backup otp codes, curriculums, purchases; personal documents in general. The content should add up to just a handful of MBs.

My current setup is made of a sync node which leverages nextcloud webdav access, my phone and my workstation.

Ideally, I would like to be able to have the files encrypted on every storage, and then be able to decrypt them just for their use. Something like a virtual file system would be fantastic.

I’ve read about pgp, but I’m not 100% sure it is the best solution. Are there any “universally” accepted alternatives?

If pgp is the right way to go, how should I manage access to the files? Should I use a keypair for every end-device and encrypt the files with both pubkeys or not?

Pardon me for all these questions, but I’m a bit confused.