I would like to publish my site to the web server which only allows SFTP with authorized key file. It seems that the current Sparkle implementation only supports the authentication using password.
Currently, I use Cyberduck to upload the exported files and it works fine but it’s better if Sparkle can publish it directly.
That’s exactly what I do as well.
For some clients’ websites I upload the files with Cyberduck to the server. My web hosting provider allows SFTP upload only with an authorised key file.
It would be nice to have that possibility with Sparkle.