I see that sftp is supported, and that could be handy for me. Everything I connect to uses key rather than password auth. Where is the key stored in this scenario and if a passphrase is required, where is that prompt from?
The short of it is the credentials are kept, encrypted, in our database so that they can be used on all of your clients.
For a much more in-depth explanation of the odrive security model, take a look at this thread: