I am a beginner in java and I am studying java web, mainly Servlets and JSP. And I need to develop a web application as a college work, focused on security. For this I would like to encrypt the parameters of the URL's (in GET) and also the parameters passed in the header via POST. I would like to do this manually, without using HTTPS.
But the question is how this architecture would work (calling a class that encrypts / decrypts every time it enters a page). Has anyone done anything like this? Would you have a tip?