Is there a way to password protect files and upload them for online storage with dreamhost? If so, how?
If you use a secure password for the backup user and don’t give it out, does that count as password protected for you??
On a per file basis though - popular file archiving solutions such as “ZIP” and “RAR” have this feature. You can also try crypto solutions like The GNU Privacy Gaurd
For the complete novice something like SecureZIP would do.