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公开(公告)号：US20220084328A1
公开(公告)日：2022-03-17
申请号：US17534876
申请日：2021-11-24
Inventor： Takeshi KISHIKAWA , Tomoyuki HAGA , Yuishi TORISAKI , Takamitsu SASAKI , Hideki MATSUSHIMA
Abstract: A vehicle monitoring apparatus includes: a first communicator that receives specifying information for specifying a target vehicle from a server; and an acquirer that acquires driving information from the target vehicle, the driving information being information regarding driving of the target vehicle specified by the specifying information received by the first communicator. The first communicator transmits the driving information acquired by the acquirer to the server. For example, the acquirer may acquire the driving information obtained from the target vehicle through communication.
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公开(公告)号：US20210365542A1
公开(公告)日：2021-11-25
申请号：US17393713
申请日：2021-08-04
Inventor： Yoshihiro UJIIE , Masato TANABE , Takeshi KISHIKAWA , Tomoyuki HAGA , Hideki MATSUSHIMA
IPC: G06F21/44 , H04L12/40 , H04L29/06 , B60R16/023 , G06F13/42
Abstract: A vehicle network system employing a controller area network protocol includes a bus, a first electronic control unit, and a second electronic control unit. The first electronic control unit transmits, via the bus, at least one data frame including an identifier relating to data used for a calculation for obtaining a message authentication code indicating authenticity of transmission content. The second electronic control unit receives the at least one data frame transmitted vis the bus and verifies the message authentication code in accordance with the identifier included in the at least one data frame.
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公开(公告)号：US20210314336A1
公开(公告)日：2021-10-07
申请号：US17354213
申请日：2021-06-22
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Yoshihiro UJIIE , Tomoyuki HAGA
Abstract: An unauthorized frame detection device that can keep an unauthorized ECU from spoofing as a legitimate server or client while suppressing an overhead during communication is provided. The unauthorized frame detection device includes a plurality of communication ports corresponding to the respective of networks, a communication controller, and an unauthorized frame detector. The plurality of communication ports are each connected to a corresponding predetermined network among the plurality of networks and each transmit or receive a frame via the predetermined network. The unauthorized frame detector determines whether an identifier of a service, a type of the service, and port information that are each included in the frame match a permission rule set in advance and outputs a result of the determination.
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公开(公告)号：US20210306365A1
公开(公告)日：2021-09-30
申请号：US17344097
申请日：2021-06-10
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yuji UNAGAMI , Takeshi KISHIKAWA
Abstract: A method for use in a network communication system including a plurality of electronic controllers that communicate with each other via a bus in accordance with a Controller Area Network (CAN) protocol determines whether or not content of a predetermined field in a frame which has started to be transmitted meets a predetermined condition indicating fraud. In a case where the content of the predetermined field meets the predetermined condition, a frame including predetermined consecutive dominant bits for notifying an anomaly is transmitted before an end of the frame is transmitted. A number of times the frame including the predetermined consecutive dominant bits is transmitted is recorded for each identifier (ID) represented by content of an ID field included in a plurality of frames which has been transmitted. A malicious electronic controller is determined in accordance with the number of times recorded for each ID.
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公开(公告)号：US20210194902A1
公开(公告)日：2021-06-24
申请号：US17194514
申请日：2021-03-08
Inventor： Manabu MAEDA , Takeshi KISHIKAWA , Daisuke KUNIMUNE
IPC: H04L29/06 , B60R16/023 , G06F21/55
Abstract: An unauthorized activity detection method in an onboard network system. The detection method includes determining whether or not a message sent out onto the network is an attack message, saving information relating to the attack message in at least one memory in a case where the message is an attack message, identifying a communication pattern from information relating to the attack message, and determining whether or not the message matches a communication pattern. The determination of whether an attack message and determination of whether matching a communication pattern are executed on each of a plurality of messages received from the network. In the determining of whether an attack message executed on a message received after executing of determining of whether matching a communication pattern, results of the determination of whether an attack message that has already be executed are used.
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Patent Agency Ranking
66.发明申请公开(公告)号：US20210185056A1
公开(公告)日：2021-06-17
申请号：US17169978
申请日：2021-02-08
Inventor： Yuji UNAGAMI , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: H04L29/06 , H04W4/40 , B60R16/023 , G06F21/57 , G06F21/60 , G06F21/71 , G06F21/85 , H04L12/28 , H04L29/08
Abstract: In a fraud-detection method for use in an in-vehicle network system including a plurality of electronic control units (ECUs) that exchange messages on a plurality of networks, a plurality of fraud-detection ECUs each connected to a different one of the networks, and a gateway device, a fraud-detection ECU determines whether a message transmitted on a network connected to the fraud-detection ECU is malicious by using rule information stored in a memory. The gateway device receives updated rule information transmitted to a first network among the networks, selects a second network different from the first network, and transfers the updated rule information only to the second network. A fraud-detection ECU connected to the second network acquires the updated rule information and updates the rule information stored therein by using the updated rule information.
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公开(公告)号：US20210117537A1
公开(公告)日：2021-04-22
申请号：US17132824
申请日：2020-12-23
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Tomoyuki HAGA , Yuji UNAGAMI , Takeshi KISHIKAWA
Abstract: A method used in an on-board network system, having electronic controllers that exchange messages and a fraud detecting electronic controller. The method includes determining whether a message transmitted conforms to fraud detection rules, and querying an external device whether there is delivery data for updating the fraud detection rules. When there is the delivery data for updating the fraud detection rules, receiving from an external device the delivery data, including updated fraud detection rules and network type information indicating a network type that the updated fraud detection rules are to be applied. The method also includes determining whether a vehicle in which the on-board network system is installed is running, and whether the network type information indicates a drive network that is connected to an electronic controller related to travel of the vehicle. When the network type information does not indicate the drive network, updating the fraud detection rules.
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公开(公告)号：US20210001793A1
公开(公告)日：2021-01-07
申请号：US17031224
申请日：2020-09-24
Inventor： Yoshihiro UJIIE , Takeshi KISHIKAWA , Ryo HIRANO
IPC: B60R16/023 , H04L12/44 , H04L12/64
Abstract: An anomaly handling method in an in-vehicle network includes: transmitting and receiving frames; detecting a frame having an anomaly; and switching, when the anomaly is detected in the detecting, a transmission timing of the frame in which the anomaly is detected. The switching includes changing a switched transmission timing to which the transmission timing is switched, according to predetermined information.
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公开(公告)号：US20200259677A1
公开(公告)日：2020-08-13
申请号：US16860353
申请日：2020-04-28
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Toshihisa NAKANO , Tohru WAKABAYASHI , Hiroshi AMANO , Tomoyuki HAGA , Takeshi KISHIKAWA
IPC: H04L12/40 , H04L29/06 , H04L12/46 , H04L12/66 , H04B1/3822
Abstract: A gateway device for a vehicle network system is provided. The vehicle network system includes a first network, a second network, a first electronic control unit connected to the first network, a second electronic control unit connected to the second network, and the gateway device connected to the first network and the second network. The gateway device receives a first frame transmitted to the first network by the first electronic control unit; determines whether or not the first frame is appropriate; generates a second frame when the first frame is not determined to be appropriate; and transmits the second frame to the second network. The second frame includes control information and additional information based on content of the first frame. The control information restricts processing of the additional information included in the second frame by the second electronic control unit.
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70.发明申请公开(公告)号：US20200099712A1
公开(公告)日：2020-03-26
申请号：US16696481
申请日：2019-11-26
Inventor： Takeshi KISHIKAWA , Yoshihiro UJIIE , Tomoyuki HAGA , Hideki MATSUSHIMA
Abstract: An anomaly detection electronic controller performs anomaly detection processing and is connected to a network, which a plurality of electronic controllers uses for communication. The anomaly detection electronic controller includes an anomaly detection processor that performs anomaly detection processing regarding a data frame. The anomaly detection controller also includes an anomaly detection processing requester that decides an anomaly detection processing timing when receiving the data frame, the anomaly detection processing timing being a reception timing of one or multiple fields in the data frame. The anomaly detection processor further performs the anomaly detection processing regarding the data frame at the anomaly detection processing timing decided by the anomaly detection processing requester.
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