A method for navigating within a retail establishment includes: generating and distributing an encoded identity to each of a plurality of location beacons, the encoded identity being effective during a time interval; broadcasting the encoded identity from each of the plurality of location beacons to a user device within a retail establishment; mapping the encoded identity of each of the plurality of location beacons to a location thereof; generating a masked mapping by combining the mapping with a time interval mask; storing the masked mapping in a website accessible to the user device; and broadcasting an srw signal to the user device within the retail establishment, the srw signal comprising information for recovering the mapping from the masked mapping in the web site; whereby navigation via the location beacons is enabled.