Method for secure user sessions/encrypted access to user specific files/folders?

I am a non-developer trying to find a script or plugin that will allow me to create encrypted user sessions. A client would securely login to my site and based on username, each would be redirected to a specific page on the server or be given access to a designated folder containin开发者_开发知识库g their account info and documents.

I've seen a few scripts out there available at repositories that offer similar features, but I'm having a hard time determining what method best suits my needs as listed above. Any recommendations?

Thanks

I know it's not what you're probably expecting, but you are describing something that resembles to an FTP server, search for vsftpd. Have you considered that?

I believe I have found a couple of answers, so I'll attempt here to answer my own question:

1) CodeIgniter may have some plugins that do what I am looking for. 2) aMember Pro does exactly what I am looking for and more, but with a $180 price tag.