Are there any common patterns or general guidance I can learn from for how to design a client/server system where the both the client and server must maintain some kind per-client session state? I've ...
I want to save some user-generated data with some signature of the user that generated it (let's say that the user has to fill some forms with some data and I want him to sign the written data). The ...
We are working on a project that includes a web server and a mobile application, we need to access the user's private data (facebook, twitter ...) from the web server by requesting from the user to ...