Abstract: The present disclosure provides an information processing apparatus that enables updating of a key for program verification without invalidating a program verification function. An information processing apparatus 1 that calculates a verification value using a key for program verification and that verifies whether the verification value matches a verification expected value stored in advance. The information processing apparatus 1 includes: a key updating control unit 12 that updates the key; a storage unit 100 that stores in advance a verification expected value corresponding to a key updated by the key updating control unit 12; and a verification expected value changing unit 13 that when a verification value calculated based on the updated key is verified, changes the verification expected value in the storage unit, the verification expected value being referred to for verification, to a verification value corresponding to the updated key.

Abstract: The present disclosure provides an information processing device and a key management device capable of safely writing key information even in a manufacturing environment other than a manufacturing environment of its own company. An information processing device 1 that generates and manages a key includes a storage unit 100 that stores a public key received from a key management device 3, a key generation unit 13 that generates a use key, and a communication unit 11 capable of communicating with the outside. The key generation unit 13 generates a use key in an invalid state in which the communication unit 11 blocks signal input from the outside. The communication unit 11 transmits the use key encrypted with the public key to the key management device 3.

Abstract: Provided is a lithium secondary battery having excellent charge-discharge cycle performance at high temperatures and having low resistance and high power. A spinel-type lithium manganese oxide including a phosphate, the spinel-type lithium manganese oxide being represented by chemical formula: Li1+XMn2?X?YMYO4 (where 0.02?X?0.20, 0.05?Y?0.30, and M represents Al or Mg), wherein the volume of pores having a size of 0.6 ?m or less is 0.003 cm3/g or more and 0.2 cm3/g or less, and the relative standard deviation of size of secondary particles is 25% or more and 45% or less, a method for producing the spinel-type lithium manganese oxide and applications of the spinel-type lithium manganese oxide.

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 object is to shorten a time required for reprogramming of a control device including a single-bank microcomputer. An ECU 901 is a control device including a first microcomputer 1 and a second microcomputer 2 that execute a program stored in a rewriting area 13 in which a memory bank is configured as a single bank. The second microcomputer 2 includes a preprocessing unit 214 that performs preprocessing on a rewriting program 5 in reprogramming processing of rewriting the program stored in the rewriting area 13 into the rewriting program 5, and a transmission unit 213 that transmits the preprocessed rewriting program 5 to the first microcomputer 1. The first microcomputer 1 includes a reception unit 121 that receives the rewriting program 5 transmitted from the second microcomputer 2, and a writing unit 122 that writes the received rewriting program 5 in the rewriting area 13.

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: An artificial blood vessel 10 comprises: an artificial blood vessel body 12; and a carbon material film 11 that covers the inner wall of the artificial blood vessel body 12. The inner wall which is covered by the carbon material film 11 is configured so that the water vapor adsorption isotherm shows desorption hysteresis.

Abstract: The present disclosure provides an information management system capable of solving a problem related to handling of information regarding each driver when a plurality of drivers drives one vehicle. An information management system 1 according to an aspect of the present disclosure manages driver information DI regarding a driver of a vehicle V. The information management system 1 includes a driver identification unit 111 that acquires personal identification information PI of the driver, an information acquisition unit 12 that acquires driver information DI including travel information of the vehicle V, and individual information storage units 125 and 132 that store individual information PD in which the personal identification information PI and the driver information DI are associated with each other.

Abstract: Provided is an analysis device that reduces false detection of an attack event to appropriately output an anomaly notification. The analysis device configured to be communicable with a plurality of monitoring-target devices collects monitoring results of each of the monitoring-target devices, determines whether an anomaly has occurred in each of the monitoring-target devices, based on the monitoring results, and determines whether to output an anomaly notification indicating the anomaly, based on a result of the determination and code verification results of each of the monitoring-target devices.

Abstract: An object of the present invention is to easily realize safe startup of a control apparatus including a plurality of arithmetic processing devices. A control apparatus 5 includes a first microcomputer 1 including a processor that executes a first program, a second microcomputer 2 including a processor that executes a second program, and a storage device 3 that stores the second program. The first microcomputer 1 includes a verification unit 1221 that verifies whether each of the first program and the second program has been falsified, a first acquisition unit 1126 that acquires the second program from the storage device 3 when the verification unit 1221 verifies that the first program is not falsified, and a startup permission notification unit 1124 that notifies the second microcomputer 2 of startup permission of the second program when the verification unit 1221 verifies that the second program is not falsified.

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: Provided are a control device and a program verification method capable of suppressing an operation load in a case where different keys are used for respective devices. The control device 1 stores a program to be verified, a plurality of verification expected values related to verification of the program to be verified, and registered verification expected value information 183 that identifies one of the verification expected values. The control device verifies whether the program to be verified is correct using the registered verification expected value information 183.

Abstract: An information processing apparatus that executes a program includes: a storage unit that includes a first region and a second region in which different versions of the same type of program are rewritably stored; and a computation unit that executes the program stored in the storage unit, in which each of the first region and the second region stores the program and up-to-dateness information regarding up-to-dateness of the program, the information processing apparatus determines whether or not to update the storage unit with the program based on the up-to-dateness information received together with the program to be updated, and the information processing apparatus starts the program with the up-to-dateness information indicating higher up-to-dateness among the programs stored in the respective regions.

Abstract: A rotational force transmission mechanism includes a shaft and an engagement member. The shaft is rotatable about a first axis. The shaft includes a leading end portion having a second groove and a first groove which is configured to receive a rotatable portion of a tool holder so that the shaft rotates the rotatable portion about the first axis. The engagement member is movable along the first axis between a first position and a second position and rotatable about the first axis together with the shaft. The engagement member includes an engagement portion configured to be received in the second groove. At least one of the shaft and the engagement member has an inclined surface that moves the engagement portion in a direction toward the first axis when the engagement member moves from the first position to the second position.

Abstract: A film formation method is provided with a step for disposing a non-electroconductive long thin tube 102 in a chamber 101 in which the internal pressure thereof is adjustable, generating a plasma inside the long thin tube 102 in a state in which a starting material gas including a hydrocarbon is supplied, and forming a diamond-like carbon film on an inner wall surface of the long thin tube 102. The long thin tube 102 is disposed in the chamber 101 in a state in which a discharge electrode 125 is disposed in one end part of the long thin tube 102 and the other end part is open. An alternating-current bias is intermittently applied between the discharge electrode 125 and a counter electrode 126 provided so as to be separated from the long thin tube 102.

Abstract: A gas sensor (1) has a sensor element (21) extending in an axis direction and having, at a top end side thereof, a detecting portion (22) that detects gas; a stainless steel-made tubular metal shell (11) enclosing a radial direction periphery of the sensor element (21) and holding the sensor element (21) and having (a) a brim portion (14) protruding outwards in a radial direction and (b) a crimp portion (16) formed at a rear end side of the metal shell (11); and a sealing member (41) placed between the sensor element (21) and the metal shell (11). The crimp portion (16) is bent inwards in the radial direction and pressing down a rear end of the sealing member (41) toward the top end side. A Micro Vickers hardness of a cross section along the axis direction of the crimp portion (16) is 140 to 210 Hv.

Abstract: An artificial blood vessel 10 comprises: an artificial blood vessel body 12; and a carbon material film 11 that covers the inner wall of the artificial blood vessel body 12. The inner wall which is covered by the carbon material film 11 is configured so that the water vapor adsorption isotherm shows desorption hysteresis.

Abstract: A rotational force transmission mechanism includes a shaft and an engagement member. The shaft is rotatable about a first axis. The shaft includes a leading end portion having a second groove and a first groove which is configured to receive a rotatable portion of a tool holder so that the shaft rotates the rotatable portion about the first axis. The engagement member is movable along the first axis between a first position and a second position and rotatable about the first axis together with the shaft. The engagement member includes an engagement portion configured to be received in the second groove. At least one of the shaft and the engagement member has an inclined surface that moves the engagement portion in a direction toward the first axis when the engagement member moves from the first position to the second position.

Abstract: A film formation method is provided with a step for disposing a non-electroconductive long thin tube 102 in a chamber 101 in which the internal pressure thereof is adjustable, generating a plasma inside the long thin tube 102 in a state in which a starting material gas including a hydrocarbon is supplied, and forming a diamond-like carbon film on an inner wall surface of the long thin tube 102. The long thin tube 102 is disposed in the chamber 101 in a state in which a discharge electrode 125 is disposed in one end part of the long thin tube 102 and the other end part is open. An alternating-current bias is intermittently applied between the discharge electrode 125 and a counter electrode 126 provided so as to be separated from the long thin tube 102.