1. A method of controlling access to a secure area comprising: providing a respective credential for each of a plurality of users seeking access to the secure area, the respective credentials each having a corresponding bit value for each of a plurality of bit positions; a minimization processor generating a single Boolean equation for the plurality of users based upon the corresponding bit values of each of the plurality of bit positions from each of the plurality of user credentials where the generated Boolean equation provides a predetermined response to each user credential of the plurality of credentials and only after receiving the user credential; saving the generated Boolean equation in a memory in place of the user credentials; and an access controller recognizing a user credential of the plurality of user credentials by reference to the Boolean equation.