Abstract: A first authentication process unit and a second authentication process unit of an ECU constituting a system respectively perform a first authentication process and a second authentication process for comparing authentication information acquired from a maintenance operator terminal and a user terminal, and first authentication information of a first authentication information registration unit and second authentication information of a second authentication information registration unit. An authority setting unit performs an operation permission for a vehicle for the purpose of maintaining the vehicle when the authentications match.

Abstract: An authentication system includes: ECUs constituting on-vehicle network and server device communicating with the ECU. The ECU stores ID and encryption key set individually to the ECU and used for authenticating data exchanged between the ECUs. The server device stores the ID and encryption key of the ECU. The ECU includes: first CPU configured to perform: generating authentication data; generating authentication code by encrypting the authentication data using the encryption key; and transmitting the ID, authentication data, and authentication code to the server device. The server device includes: second CPU configured to perform: acquiring the ID transmitted from the ECU; retrieving the encryption key of ECU corresponding to the ID acquired; acquiring the authentication data and authentication code transmitted from the ECU; and authenticating the ECU using the encryption key retrieved.

Abstract: An authentication system includes: ECUs constituting on-vehicle network and server device communicating with the ECU. The ECU stores ID and encryption key set individually to the ECU and used for authenticating data exchanged between the ECUs. The server device stores the ID and encryption key of the ECU. The ECU includes: first CPU configured to perform: generating authentication data; generating authentication code by encrypting the authentication data using the encryption key; and transmitting the ID, authentication data, and authentication code to the server device. The server device includes: second CPU configured to perform: acquiring the ID transmitted from the ECU; retrieving the encryption key of ECU corresponding to the ID acquired; acquiring the authentication data and authentication code transmitted from the ECU; and authenticating the ECU using the encryption key retrieved.

Abstract: A communications system includes a transmission device configured to transmit information as a communication message to a network at a predetermined frequency according to a type of information and a reception device configured to receive the transmitted communication message, wherein a first type of information to be transmitted at a first frequency and a second type of information to be transmitted at a second frequency higher than the first frequency are transmitted as different communication messages to the network, and wherein the reception device detects the occurrence of an abnormal state in the network on the basis of the number of receptions of the second type of information until the next first type of information is received after the first type of information is received.

Abstract: A communication circuit unit of an FI-ECU receives a signal from an AT-ECU. An arithmetic processing unit determines transmitted data at a control cycle ?Tn, transmits a communication data signal including the transmitted data to the AT-ECU at a time point t2 after the start point of the current control cycle ?Tn, and retransmits it at a time point t3 where a state, in which an ACK signal from the AT-ECU has not been received, has continued for a predetermined period of time. When the current control cycle ?Tn is ended in a state in which the ACK signal has not been received, at a time point t5 after the start point of the next control cycle ?Tn, the arithmetic processing unit transmits the communication data signal including a newest value of the transmitted data determined at the start point of the next control cycle ?Tn to the AT-ECU.

Abstract: A vehicle-mounted information communication device includes a unit for acquiring information relating to the vehicle's current position; a position change amount calculation unit for acquiring information relating to an amount of change in the current position; and a transmission information generation unit for performing information communication with the outside of the vehicle. The transmission information generation unit generates reference information including the information relating to the vehicle's current position and transmits the reference information to the outside. At a timing different from that of the reference information, the transmission information generation unit generates progress information including the information relating to the amount of change in the current position and transmits the progress information to the outside.

Abstract: A first authentication process unit and a second authentication process unit of an ECU constituting a system respectively perform a first authentication process and a second authentication process for comparing authentication information acquired from a maintenance operator terminal and a user terminal, and first authentication information of a first authentication information registration unit and second authentication information of a second authentication information registration unit. An authority setting unit performs an operation permission for a vehicle for the purpose of maintaining the vehicle when the authentications match.

Abstract: A communication system includes a communication device configured to execute a process related to a cyber security solution in accordance with policy information defining execution details of the process related to the cyber security solution. The communication system includes a change unit configured to change the policy information, wherein the change unit changes the policy information after a state of the communication device in a process of manufacturing the communication system transitions from a first state where the communication device is mounted to the communication system to a second state where a predetermined process is executed thereafter so that the execution details of the process related to the cyber security solution in the second state are expanded more than the execution details in the first state.

Abstract: A vehicle-mounted information communication device includes a unit for acquiring information relating to the vehicle's current position; a position change amount calculation unit for acquiring information relating to an amount of change in the current position; and a transmission information generation unit for performing information communication with the outside of the vehicle. The transmission information generation unit generates reference information including the information relating to the vehicle's current position and transmits the reference information to the outside. At a timing different from that of the reference information, the transmission information generation unit generates progress information including the information relating to the amount of change in the current position and transmits the progress information to the outside.

Abstract: A communication circuit unit of an FI-ECU receives a signal from an AT-ECU. An arithmetic processing unit determines transmitted data at a control cycle ?Tn, transmits a communication data signal including the transmitted data to the AT-ECU at a time point t2 after the start point of the current control cycle ?Tn, and retransmits it at a time point t3 where a state, in which an ACK signal from the AT-ECU has not been received, has continued for a predetermined period of time. When the current control cycle ?Tn is ended in a state in which the ACK signal has not been received, at a time point t5 after the start point of the next control cycle ?Tn, the arithmetic processing unit transmits the communication data signal including a newest value of the transmitted data determined at the start point of the next control cycle ?Tn to the AT-ECU.

Abstract: A communication system includes a first communication apparatus connected to first and second communication paths and at least one second communication apparatus connected to the second communication path. The first communication apparatus includes first and second communication units configured to perform communication with the first and second communication paths, respectively, and a control unit configured to receive a first frame storing a diagnosis request from the first communication path, specify, among the at least one second communication apparatus, a second communication apparatus to process the diagnosis request, determine whether the first communication apparatus can process the diagnosis request instead of the specified second communication apparatus, acquire, if it is determined that the diagnosis request can be processed, a diagnosis result by processing the diagnosis request, and transmit a frame storing the diagnosis result to the first communication path.

Abstract: A communications system includes a transmission device configured to transmit information as a communication message to a network at a predetermined frequency according to a type of information and a reception device configured to receive the transmitted communication message, wherein a first type of information to be transmitted at a first frequency and a second type of information to be transmitted at a second frequency higher than the first frequency are transmitted as different communication messages to the network, and wherein the reception device detects the occurrence of an abnormal state in the network on the basis of the number of receptions of the second type of information until the next first type of information is received after the first type of information is received.

Abstract: A communication apparatus of an embodiment includes: a communication unit connected to a communication path; and an abnormality detection section that detects an abnormality in a network based on a number of predetermined signals received in a first predetermined period via the communication unit and waits for a process of detecting the abnormality in the network in a second predetermined period after a start of a communication in the network.

Abstract: A communication system includes a communication device configured to execute a process related to a cyber security solution in accordance with policy information defining execution details of the process related to the cyber security solution. The communication system includes a change unit configured to change the policy information, wherein the change unit changes the policy information after a state of the communication device in a process of manufacturing the communication system transitions from a first state where the communication device is mounted to the communication system to a second state where a predetermined process is executed thereafter so that the execution details of the process related to the cyber security solution in the second state are expanded more than the execution details in the first state.

Abstract: A communication system includes a first device configured to transmit a signal to each of a first transmission path and a second transmission path provided within a vehicle, a control device configured to control an in-vehicle device on the basis of the signal transmitted to the second transmission path and transmit a signal indicating a result of control to a third transmission path, and a second device configured to detect a fraud state in the vehicle by performing a comparison on the basis of first information included in the signal received from the first transmission path and second information included in the signal received from the third transmission path.

Abstract: A monitoring apparatus capable of efficiently disabling, when an invalid frame is detected in an in-vehicle network, the invalid frame by a simple method, for example, includes a reception unit configured to receive a frame from a communication network, a determination unit configured to determine whether the frame received by the reception unit is a valid frame or an invalid frame which is not a valid frame, and a transmission unit configured to transmit, if the determination unit determines that the received frame is an invalid frame, a frame including information identical to that included in the valid frame.

Abstract: A system includes a first communication apparatus connected to first and second communication paths, and at least one second communication apparatus connected to the second communication path. The first communication apparatus includes a first communication unit configured to perform communication with the first communication path, a second communication unit configured to perform communication with the second communication path, and a control unit configured to receive, from the first communication path, a first frame storing a diagnosis request and identification information of the first communication apparatus, specify, among the at least one second communication apparatus, a second communication apparatus to process the diagnosis request, generate a second frame by rewriting the identification information stored in the first frame to identification information of the specified second communication apparatus, and transmit the second frame to the second communication path.

Abstract: A communication system includes a first communication apparatus connected to first and second communication paths and at least one second communication apparatus connected to the second communication path. The first communication apparatus includes first and second communication units configured to perform communication with the first and second communication paths, respectively, and a control unit configured to receive a first frame storing a diagnosis request from the first communication path, specify, among the at least one second communication apparatus, a second communication apparatus to process the diagnosis request, determine whether the first communication apparatus can process the diagnosis request instead of the specified second communication apparatus, acquire, if it is determined that the diagnosis request can be processed, a diagnosis result by processing the diagnosis request, and transmit a frame storing the diagnosis result to the first communication path.

Abstract: A communication system includes a first device configured to transmit a signal to each of a first transmission path and a second transmission path provided within a vehicle, a control device configured to control an in-vehicle device on the basis of the signal transmitted to the second transmission path and transmit a signal indicating a result of control to a third transmission path, and a second device configured to detect a fraud state in the vehicle by performing a comparison on the basis of first information included in the signal received from the first transmission path and second information included in the signal received from the third transmission path.

Abstract: A communication system includes: a transmission device configured to be connected to a network, wherein a message to be transmitted to the network, in a case where an own device is in a predetermined abnormality state, becomes a message in which a predetermined loss has occurred; and a reception device configured to be connected to the network and perform a predetermined failsafe processing when the predetermined loss has been detected in a message received from the network. The transmission device is configured to generate and transmit a message in which a predetermined loss has occurred similarly to the case where the own device is in the predetermined abnormality state when a fraudulent activity in the network has been detected.