Sync ability to share files with cloud accounts

Zbigz premium account holder should be able to sync their files into their personal cloud account eg dropbox, uptobox or google drive to share with one or multiple friends. However, zbigz should generate small pass for each time a new file is transferred to a cloud (eg google drive) and users can set a password which can be used by his friends when they use the file from the users to stop unwanted trespassing of files.