Extra-vehicular communication device, communication control method, and communication control program

An extra-vehicular communication device installed in a vehicle that communicates with an external device outside the vehicle, the vehicle being configured to perform autonomous driving, the extra-vehicular communication device comprising:

• a first memory that stores normal-time operation information regarding a predetermined operation in a normal time;
• a main control circuit that performs processing based on the normal-time operation information;
• a secure memory that includes a tamper-resistant secure area, the memory storing, in the secure area, at least one of communication destination information regarding a communication destination outside of the vehicle and emergency operation information regarding a predetermined operation in an emergency;
• and
• a secure control circuit that:
• accesses the secure area,
• performs (i) control of communication with the communication destination by use of the communication destination information, and (ii) processing based on the emergency operation information when unauthorized access in in-vehicle equipment installed in the vehicle is detected, and
• upon detecting unauthorized access in the in-vehicle equipment installed in the vehicle, restricts transmission of information, except for control information and map information, which are permitted to be transmitted and are used to perform autonomous driving of the vehicle.

An extra-vehicular communication device installed in a vehicle that communicates with an external device outside of the vehicle, the vehicle being configured to perform autonomous driving, the extra-vehicular communication device comprising:

• a control circuit;
• and
• a memory that includes a secure area to which access from the control circuit is permitted when the control circuit outputs predetermined information, the memory storing, in the secure area, at least one of communication destination information regarding a communication destination outside the vehicle and emergency operation information regarding a predetermined operation in an emergency,
• wherein when unauthorized access in in-vehicle equipment installed in the vehicle is detected, the control circuit:
• performs control of communication with the communication destination by use of the communication destination information and processing based on the emergency operation information, and
• restricts transmission of information, except for control information and map information, which are permitted to be transmitted and are used to perform autonomous driving of the vehicle.

An extra-vehicular communication device installed in a vehicle that communicates with an external device outside the vehicle, the vehicle being configured to perform autonomous driving, the extra-vehicular communication device comprising:

• a first memory that stores normal-time operation information regarding a predetermined operation in a normal time;
• a main control circuit that performs processing based on the normal-time operation information;
• a secure memory that includes a secure area, the secure memory storing, in the secure area, at least one of communication destination information regarding a communication destination outside the vehicle and emergency operation information regarding a predetermined operation in an emergency;
• and
• a secure control circuit that:
• accesses the secure area,
• performs (i) control of communication with the communication destination by use of the communication destination information, and (ii) processing based on the emergency operation information when unauthorized access in in-vehicle equipment installed in the vehicle is detected, and
• upon detecting unauthorized access in the in-vehicle equipment installed in the vehicle, restricts transmission of information, except for control information and map information, which are permitted to be transmitted and are used to perform autonomous driving of the vehicle.