Method for DSRC communication

Method for DSRC communication between beacons (RSE) and on-board devices (OBU) of a sistemade toll highway, having the beacons (RSE) of a common key system (MK) and not disposing losdispositivos board (OBU) of the common key system (MK), but individual key (DK), each delas which is formed from the specific common key system (MK) by means of a handle tap (Div) of the device to board, which in a communication (3), the identifier seenvía bypass vehicle device (OBU) the beacon (RSE) in order to enable the beacon (RSE) lareproducción individual key (DK) for encoding and decoding of communication (5) with eldispositivo board (OBU) and / or for access to data stored in the onboard device OBU), characterized in that, in communications (2-5) with beacons (RSE) successive, vehicle on-board (OBU) sends identifiers bypass (Div) which change, pocketing a device on board (OBU) a reserve (8) pairs of individual keys (DKi) and identifiers bypass (Divi) partners, and because, in a communication (2-5) with a beacon (RSE) the onboard device (OBU) selects a pair of estareserva (8) and uses for this communication (2 to 5 ).