Looking for a php page that allows users to choose a file on their local computer, upload it and have it encrypted using AES / rijndael and then allow them to download the encrypted file. Files would mainly be of .doc, .txt, .csv, .pdf, .xlsx, types. Also need to be able to go to the page with the encrypted file and have the ability to unencrypt the file for use. Plan to have different keys for each user so will need a php variable for the key. Will be working on a linux / ubuntu box, could use pgp encryption.