Methods and apparatus for detecting attacks in V2X networks

An apparatus comprising:

• means for challenging vehicles to test their authenticity, the means for challenging to:
• cause a first transmission of a first challenge packet at a first frequency, the first challenge packet to instruct a first electronic system to transmit a first challenge response at a second frequency, the first frequency and the second frequency based on a first frequency band hopping pattern;
• cause a second transmission of a second challenge packet at a third frequency, the second challenge packet to instruct a second electronic system to transmit a second challenge response at a fourth frequency, the third frequency and the fourth frequency based on a second frequency band hopping pattern;
• increase a counter corresponding to the first electronic system after not obtaining the first challenge response;
• and
• means for causing transmission of a third transmission of a data packet to a third electronic system, the third transmission to cause the third electronic system to drop at least one future message from the first electronic system in response to a determination that the counter satisfies a threshold.

At least one non-transitory computer readable storage medium comprising instructions to cause programmable circuitry to at least:

• cause a first transmission of a first challenge packet at a first frequency, the first challenge packet to instruct a first electronic system to transmit a first challenge response at a second frequency, the first frequency and the second frequency based on a first frequency band hopping pattern;
• cause a second transmission of a second challenge packet at a third frequency, the second challenge packet to instruct a second electronic system to transmit a second challenge response at a fourth frequency, the third frequency and the fourth frequency based on a second frequency band hopping pattern;
• increase a counter corresponding to the first electronic system after not obtaining the first challenge response;
• and
• after a determination that the counter satisfies a threshold, cause a third transmission of a data packet to a third electronic system to cause the third electronic system to disregard at least one future message from the first electronic system.

A system comprising:

• a server to transmit a first challenge packet at a first frequency to a first electronic system, the first challenge packet to instruct the first electronic system to transmit a first challenge response at a second frequency to the server, the first frequency and the second frequency based on a first frequency band hopping pattern;
• a trusted vehicle to transmit a second challenge packet at a third frequency to a second electronic system, the second challenge packet to instruct the second electronic system to transmit a second challenge response at a fourth frequency to the trusted vehicle, the third frequency and the fourth frequency based on a second frequency band hopping pattern;
• and
• the server to:
• increment a first counter corresponding to the first electronic system after the server does not obtain the first challenge response;
• increment a second counter, the second counter corresponding to the second electronic system after the trusted vehicle does not obtain the second challenge response;
• and
• after a determination that at least one of the first counter or the second counter satisfies a threshold, instruct the trusted vehicle to drop a future message from a respective one of the first electronic system or the second electronic system that corresponds to the at least one of the first counter or the second counter that satisfies the threshold.