Non-trivial task. How to connect multiple authorizations to a site?

Question

Programming

Hello.
There is an exotic problem.
In a web application, you need to make several separate authorizations, each of which unlocks certain functionality (independent of each other).
That is, we can enter the site through the login / password A, B and A + B (+ C + D ....). Accordingly, it is necessary that the browser could remember this. All this should work without a "keychain", that is, when there is a parent account to which child accounts can be connected.
Is it possible to implement this, and how?
Thank you.

Answer 1

Maybe you don't need multiple authorizations, but try looking towards ACLs and the user role system.

Answer 2

Use uLogin or analogues, there you can find out through api what the user was authorized through.