Misbehavior protection for connected vehicle communication

1. An apparatus for determining one or more occurrences of vehicle misbehavior, comprising:

at least one memory; and

at least one processor coupled to the at least one memory, the at least one processor configured to:

process one or more received messages at least in part by performing a plurality of plausibility determinations to obtain a respective plurality of plausibility measurements;

determine at least one context for a region at which a vehicle is located;

weight the plurality of plausibility measurements in accordance with values determined from the at least one context to obtain a respective plurality of plausibility indicator values; and

determine a misbehavior confidence indicator using the plurality of plausibility indicator values.

2. The apparatus of claim 1 , wherein the at least one processor includes at least one electronic processor subsystem.

3. The apparatus of claim 2 , wherein the at least one electronic processor subsystem comprises an onboard processor subsystem operating in conjunction with at least one special purpose processor.

4. The apparatus of claim 1 , wherein the misbehavior confidence indicator comprises an array of the plurality of plausibility indicator values.

5. The apparatus of claim 1 , wherein the misbehavior confidence indicator comprises a value derived from a count of the plurality of plausibility indicator values that meet predetermined criteria.

6. The apparatus of claim 1 , wherein the misbehavior confidence indicator comprises a sum of at least the plurality of plausibility indicator values that meet predetermined criteria.

7. The apparatus of claim 1 , wherein, to determine the at least one context, the at least one processor is configured to determine a plurality of contexts.

8. The apparatus of claim 1 , wherein the at least one processor is configured to perform the plurality of plausibility determinations in parallel.

9. The apparatus of claim 1 , wherein the at least one processor is configured to perform the plurality of plausibility determinations in a series sequence.

10. The apparatus of claim 1 , wherein the at least one processor is configured to:

provide one or more misbehavior detection routines; and

implement the one or more misbehavior detection routines in conjunction with the misbehavior confidence indicator to obtain an indication of misbehavior.

11. The apparatus of claim 10 , wherein the indication of occurrence of misbehavior comprises an indication of a particular type of cyber attack.

12. The apparatus of claim 10 , wherein the one or more misbehavior detection routines are configured to recognize characteristics of behavior of message sources as being an indication of a particular type of cyber attack.

13. The apparatus of claim 1 , wherein, to determine the at least one context, the at least one processor is configured to determine at least one context from at least one of a vehicle population, a neighboring vehicle telemetry, a time of day, weather, a risk-threat model, computation overhead, communication overhead, location, or environment.

14. The apparatus of claim 1 , wherein the apparatus is configured as part of a vehicle.

15. An apparatus for determining one or more occurrences of vehicle misbehavior, comprising:

at least one memory; and

at least one processor coupled to the at least one memory, the at least one processor configured to:

process one or more received messages at least in part by performing a plurality of plausibility determinations to obtain a respective plurality of plausibility measurements from which a respective plurality of plausibility indicator values are derived;

implement a plurality of misbehavior detection routines in conjunction with the plurality of plausibility indicator values; and

determining an occurrence of at least one misbehavior from outputs of the plurality of misbehavior detection routines.

16. The apparatus of claim 15 , wherein the at least one processor includes at least one electronic processor subsystem.

17. The apparatus of claim 16 , wherein the at least one electronic processor subsystem comprises an onboard processor subsystem operating in conjunction with at least one special purpose processor.

18. The apparatus of claim 15 , wherein the at least one processor is configured to determine at least one context for a region at which a vehicle is located, and wherein the plurality of misbehavior detection routines are implemented in conjunction with values determined from the at least one context.

19. The apparatus of claim 15 , wherein the at least one processor is configured to perform the plurality of misbehavior detection routines.

20. The apparatus of claim 15 , wherein the at least one processor is configured to perform the plurality of misbehavior detection routines in a series sequence.

21. The apparatus of claim 15 , wherein the apparatus is configured as part of a vehicle.

22. An apparatus for determining one or more occurrences of vehicle misbehavior, comprising:

at least one memory; and

at least one processor coupled to the at least one memory, the at least one processor configured to:

process one or more received messages at least in part by performing a plurality of plausibility determinations to obtain a respective plurality of plausibility measurements;

determine at least one context for a region at which a vehicle is located;

derive, based on the at least one context, rankings of the plurality of plausibility determinations and the respective plurality of plausibility measurements;

weight the plurality of plausibility measurements in accordance with the rankings to obtain an array of plausibility indicator values;

select at least one misbehavior detection routine from a plurality of misbehavior detection routines in accordance with the at least one context;

implement the selected at least one misbehavior detection routine in conjunction with one or more respective plausibility indicator values of the array of plausibility indicator values; and

determine an occurrence of misbehavior from at least one output of the selected at least one misbehavior detection routine.

23. The apparatus of claim 22 , wherein the apparatus is configured as part of a vehicle.

24. An apparatus for determining one or more occurrences of vehicle misbehavior, comprising:

at least one memory; and

at least one processor coupled to the at least one memory, the at least one processor configured to:

process one or more received messages at least in part by performing a plurality of plausibility determinations to obtain a respective plurality of plausibility measurements;

determine at least one context for a region at which a vehicle is located;

derive, based on the at least one context, rankings of the plurality of plausibility determinations and the respective plurality of plausibility measurements;

implement plausibility determinations and weightings in accordance with values determined from the at least one context, in a sequence that depends on the rankings;

accumulate plausibility indications based on implementing the plausibility determinations and weightings until accumulation exceeds a predetermined threshold;

provide a plurality of misbehavior detection routines;

implement a plurality of misbehavior detection routines in conjunction with the at least one context and the accumulation of plausibility indications to obtain a misbehavior output; and

issue a misbehavior warning depending on the misbehavior output.

25. The apparatus of claim 24 , wherein the apparatus is configured as part of a vehicle.