In this presentation, an embedded wireless authentication network is described that employs a unique time-slotted/frequency-hopping two-tuple. The protocol is ideal for the validation of trusted nodes in a smart grid under the supervision of a Bluetooth-like control system. The protocol is based on a canonical, time-space (frequency channel) splitting over which information (data packets) propagates under the constraint of a collision-avoidance protocol. In this presentation, we analyze several authentication attack scenarios and discuss their properties.