Hitachi, Ltd.

Hitachi Astemo Ltd.

Momoka Kasuya

Hiroki Yamazaki

Nobuyoshi Morita

Makoto Kayashima

Kota Ideguchi

Yasuhiro Fujii

Yasuhiko Nagai

Mikio Kataoka

Masaki Fujiwara

A computer system holds: function information for managing functions of modules which form a product; resource information for managing a resource which implements a function of components that forms each of the modules; and product configuration system information for managing a system of the modules and relationships between the modules and the components. The computer system obtains cyber security information on a target resource having a security risk, identifies, based on the resource information, a target component provided with a target function implemented through use of the target resource; identifies, based on the product configuration system information and the function information, a target module provided with the target function with a starting point being set to one of the modules which is provided with the target component, identifies, based on the product configuration system information, each of the components which relates to the target module; and generates impact range information for presenting the each of the components which has been identified.

Computer system and analysis method for impact of security risk

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. The verification unit delegates the authority of the secure boot to the delegated verification unit to end the execution of the secure boot when the verification for the first program and the second program is successful and the processor is caused to execute the first program and the second program, the calculation unit starts an operation when the verification unit ends the execution of the secure boot, and the delegated verification unit is able to simultaneously execute processing with the calculation unit.

Electronic control device and control method

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.

Information processing apparatus and legitimate communication determination method

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Tokyo, Japan

Momoka Kasuya