Bitrix module

You need to implement a “hard” login with specific users tied to certain computers, but not IP addresses. The meaning of the problem, computers are in the trading room as terminals for order, assign them logins Terminal 1, Terminal 2. And accordingly, the task is that the buyer could not “playful pens”, log off and log in somehow differently. I mean. These computers must be recognized by the site as the Terimnal 1, 2, and And give only the corresponding login, rights and opportunities for the user.
It is important to do this not directly in the code of the site, but in the form of a module, so that updates to the bitrix and the site itself do not affect the functionality.