I have this unlimited online backup solution, which has very few good things to say about it apart from it being free. For instance, though it claims to offer encryption, this seems not to be the case.
I was thinking there might be some FUSE-based FS, similar to the standard Ubuntu "encrypt your home folder" (LUKS) option, that did the opposite of LUKS. That is, it would take my local, unencrypted files, and present them in a virtual FS, encrypted, for my backup program to back up on the online service. So that all my files on the backup servers (which are out of my control) would be completely unreadable to anyone, even if those servers were compromised.
Preferably, it would also be able to do the reverse, in case I needed to restore files. So that I could, for instance, write encrypted files to the virtual FS and it'd unencrypt them before writing them to disk. Or there'd be some other way to achieve this, such as it using standard libraries like gpgp or something like that...
Does this make sense? Does any one of you know about anything like this?
I find it really hard to formulate a Google query that doesn't offer me pages and pages of the opposite of what I'm looking for.