Abstract: An electronic control device 140 is mounted on an on-vehicle control system 10 that performs travel control of an automobile, and is communicatively connected to a plurality of control devices including a first control device (electronic control device 120) and a second control device (electronic control device 130). The electronic control device 140 includes an attack determination unit 145 that determines presence or absence of a security attack in each control device, and a redundant system execution determination unit 146 that determines whether to cause the second control device to execute a redundant function similar to or a part of the function performed by the first control device based on the result of determination by the attack determination unit 145.

Abstract: A computer system comprises a freshness evaluation module configured to evaluate freshness of cyber security information; a reliability evaluation module configured to evaluate a level of reliability of an information source of the cyber security information; a richness evaluation module configured to evaluate richness of a content of the cyber security information; and a value evaluation module configured to evaluate a value of the cyber security information based on evaluation results obtained by the freshness evaluation module, the reliability evaluation module, and the richness evaluation module. The richness evaluation module is configured to: identify a target of application of the cyber security information; and evaluate the richness of the content of the cyber security information in the identified target.

Abstract: An information processing apparatus capable of aperiodic communication and periodic communication, provided with a communication determination unit that determines a type of a communication message; a first processing determination unit that determines relatedness between aperiodic communication and periodic communication by using a first communication message for which the type is determined to be aperiodic communication, and a prediction range for an amount of time for receiving a second communication message for which the type is determined to be periodic communication; and a second processing determination unit that determines that the second communication message is legitimate communication for periodic communication in a case where the periodic communication second communication message determined to have relatedness is in the prediction range a predetermined amount of time later.

Abstract: An electronic control device includes a tamper storage unit that stores a secure boot key and a control key, and has tamper resistance, a processor that is able to execute a program, a verification unit that verifies a program by using the secure boot key, performs secure boot causing the processor to execute the program based on a result of the verification, and has tamper resistance, a calculation unit that performs calculation related to encryption using the control key, and has tamper resistance, and a general storage unit that stores a first program that implements a delegated verification unit to which authority of the secure boot is delegated from the verification unit and a second program that implements a control unit that uses the calculation unit, and does not have tamper resistance.

Abstract: An electronic control device includes: a first processing unit; a second processing unit; and a transfer control unit.

Abstract: An information processing apparatus capable of aperiodic communication and periodic communication, provided with a communication determination unit that determines a type of a communication message; a first processing determination unit that determines relatedness between aperiodic communication and periodic communication by using a first communication message for which the type is determined to be aperiodic communication, and a prediction range for an amount of time for receiving a second communication message for which the type is determined to be periodic communication; and a second processing determination unit that determines that the second communication message is legitimate communication for periodic communication in a case where the periodic communication second communication message determined to have relatedness is in the prediction range a predetermined amount of time later.