We are setting up a virtual private server (not hosted by us), on which we will be user testing our Django-based web application. The user-generated content produced in these tests will be very sensitive. We would like to keep this content encrypted, for example in case back-up media goes missing. The content will be stored in a MySQL or SQLite database.
As I understand it, we cannot encrypt the file system of the VPS. If we encrypt the database, using something like SQLcipher (http://sqlcipher.net/), is there a way of passing the key to Django without storing it on the server? We will be booting up the server for each test, so that part is not a concern.