Abstract: An electronic control unit to be applied to a vehicle includes at least one electronic control unit. The at least one electronic control unit is configured to: store a public key; receive a role list to set a specific work permitted to be executed by the at least one electronic control unit from a communication apparatus; perform signature verification of the role list using the public key; set, based on the role list verified by the signature verification, an available work list indicating the specific work permitted to be executed; and execute, when receiving a request message requesting the specific work set in the available work list, a process of the specific work.

Abstract: A control apparatus for a vehicle includes a processor, a storage, and a first determining unit. The processor is configured to control a control target mounted in the vehicle. The storage is configured to contain unauthorized entry data. The unauthorized entry data indicates a presence of an unauthorized entry into the vehicle. The first determining unit is configured to make a determination on a necessity of a secure boot process upon activation of the processor, on the basis of the unauthorized entry data.

Abstract: A vibration damping floor structure for reducing vibrations and shocks applied to a building. The vibration damping floor structure includes a frame structure formed by connecting a plurality of frames, a plurality of ball bearing supports formed on predetermined locations of the frame structure, and a plurality of ball bearings formed on each ball bearing support. Each bearing support is structured so that all of the ball bearings can contact the floor by adjusting the height and following the inclination of the floor.

Abstract: A vibration damping floor structure for reducing vibrations and shocks applied to a building. The vibration damping floor structure includes a frame structure formed by connecting a plurality of frames, a plurality of ball bearing supports formed on predetermined locations of the frame structure, and a plurality of ball bearings formed on each ball bearing support. Each of the bearing support includes means for following an inclination of a floor surface of the building and means for adjusting height, thereby contacting all of the ball bearings with the floor surface of the building.