I have been doing a project on the above mentioned topic.
I have created both hide and extract part in this project. but what my coordinator wants is
the httprequest (ex.: url, applicationpath,cookies, querystring, anonymousID) these properties must be first encrypted and hash calculated.
after which the output string needs to be stegnographed. more over this should be in client proxy and server proxy level so that the machine ip hacking is not possible..
hope my requirement is clear. could anybody help me on the coding of this.