How does someone access an encrypted OSX folder from Linux? I've mounted the OSX drive on Linux however some folders are not readable.
I don't think there is such a thing as "encrypted OS X folders". HFS+ does not support that.
It's all disk images (
If you're a developer, you might be able to adapt VileFault (also see here) to your needs -- I'm afraid that's the closest you get to a tool for that. And I don't think they support sparsebundles/-images either.