Please help on blog....

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I have made a blog to share my files and folder through A-drive which gives 50 GB free online storage. Now i want to create a blog with links to these adrive folders. But is there a way to password protect these folders so that i could choose who could view these files and folders. I want such a system in which a user clicks on link and is prompted for a password and then access to that file or folder. And ya different passwords for different folders.Is it possible Please help.