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公开(公告)号：US11929895B2
公开(公告)日：2024-03-12
申请号：US17854182
申请日：2022-06-30
发明人： Takeshi Kishikawa , Ryo Hirano , Yoshihiro Ujiie
IPC分类号： H04L43/026 , G07C5/08 , H04L67/12
CPC分类号： H04L43/026 , G07C5/0858 , H04L67/12
摘要： A communication log aggregation device includes: a communicator that obtains flow information including one or more flow records and first statistical information for each flow from each of collection devices, the one or more flow records each including flow identification information included in a message received by at least one observer that is disposed in a control network system, the flow being classified based on the flow identification information, the collection devices each collecting the one or more flow records and the first statistical information for each flow from the message received by the observer; and a flow aggregator that generates aggregated flow information by performing at least one of the following: (i) selecting at least one of the one or more flow records, (ii) adding second statistical information, and (iii) deleting at least one of the one or more flow records, and outputs the aggregated flow information.
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公开(公告)号：US11829472B2
公开(公告)日：2023-11-28
申请号：US17380228
申请日：2021-07-20
发明人： Ryo Hirano , Takeshi Kishikawa , Yoshihiro Ujiie , Tomoyuki Haga
CPC分类号： G06F21/56 , G06F21/552
摘要： An anomalous vehicle detection server includes an anomaly score calculator that detects a suspicious behavior different from a predetermined driving behavior based on pieces of vehicle information that are received from a plurality of vehicles, respectively, and are each based on a vehicle log including the content of an event that has occurred in a vehicle system provided in the vehicle, and acquires an anomaly score of each of the plurality of vehicles that indicates a likelihood that reverse engineering is performed on the vehicle; and an anomalous vehicle determiner that determines whether one vehicle of the plurality of vehicles is an anomalous vehicle based on the anomaly score of the one vehicle and a statistical value of the anomaly scores of two or more vehicles of the plurality of vehicles.
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公开(公告)号：US11296965B2
公开(公告)日：2022-04-05
申请号：US17201839
申请日：2021-03-15
发明人： Yoshihiro Ujiie , Tomoyuki Haga , Manabu Maeda , Hideki Matsushima , Takeshi Kishikawa , Junichi Tsurumi , Hisashi Kashima , Yukino Toriumi , Takuya Kuwahara
IPC分类号： H04L43/0823 , H04L12/40 , H04W4/48 , H04L41/14 , H04L29/06
摘要： An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a mobility entity. In the abnormality detection method, for example, a gateway transmits identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.
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公开(公告)号：US11223525B2
公开(公告)日：2022-01-11
申请号：US16915187
申请日：2020-06-29
IPC分类号： H04L12/24 , B60R16/023 , G06F11/00 , B60R16/02 , G06F11/36 , G06F8/654 , G06F8/71 , H04L12/46 , H04L12/40 , H04L12/66
摘要： A gateway device connected to a network used in communication by multiple electronic control units provided on-board a vehicle. The gateway device performs operations including receiving firmware update information that includes updated firmware for one electronic control unit among the electronic control units, and acquiring system configuration information indicating a function of each of the electronic control units connected to the network. The gateway device further performs a controlling operation to update firmware of the one electronic control unit, for which updated firmware is received by the receiving, on a basis of the updated firmware, after an operation verification of the updated firmware is performed in an operating environment appropriately. The operating environment being configured with electronic control units of the same functions as each of the electronic control units indicated by the system configuration information.
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公开(公告)号：US10974669B2
公开(公告)日：2021-04-13
申请号：US16664192
申请日：2019-10-25
发明人： Tomoyuki Haga , Toshihisa Nakano , Jun Anzai , Hideki Matsushima , Yoshihiro Ujiie , Yuji Unagami
IPC分类号： H04L9/32 , B60R16/023 , H04L12/40 , H04L12/46 , H04L12/66
摘要： A gateway connected to a bus, a bus, and the like used by a plurality of electronic control units for communication includes a frame communication unit that receives a frame, a transfer control unit that removes verification information used to verify a frame from the content of the frame received by the frame communication unit and transfers the frame to a destination bus or that adds verification information to the content of the frame and transfers the frame to the destination bus, and the like.
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56.发明授权公开(公告)号：US10951631B2
公开(公告)日：2021-03-16
申请号：US16540675
申请日：2019-08-14
发明人： Yuji Unagami , Hideki Matsushima , Tomoyuki Haga , Manabu Maeda , Yoshihiro Ujiie , Takeshi Kishikawa
IPC分类号： H04L29/06 , H04W4/40 , B60R16/023 , G06F21/57 , G06F21/60 , G06F21/71 , G06F21/85 , H04L12/28 , H04L29/08
摘要： 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：US10931634B2
公开(公告)日：2021-02-23
申请号：US15880769
申请日：2018-01-26
发明人： Manabu Maeda , Jun Anzai , Yoshihiro Ujiie , Masato Tanabe , Takeshi Kishikawa
IPC分类号： H04L29/06 , B60R16/023 , G06F21/55 , H04L12/28 , H04L12/40 , G06F21/85 , H04L9/36 , H04L29/08
摘要： A gateway serving as a security apparatus connected to one or a plurality of buses includes a receiver that receives a frame from a bus, a parameter storage that stores an examination parameter defining a content of an examination of the frame, an updater configured to, in a case where a predetermined condition is satisfied for the frame received by the receiver, update the examination parameter stored in the parameter storage, and an examiner that performs an examination, based on the examination parameter stored in the parameter storage, in terms of judgment of whether or not the frame received by the receiver is an attack frame.
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公开(公告)号：US10909237B2
公开(公告)日：2021-02-02
申请号：US16431002
申请日：2019-06-04
摘要： A method for a fraud detecting controller connected to networks for communication by a plurality of controllers, includes, storing fraud detection rules, determining whether a message transmitted on the network connected to the fraud detecting controller conforms to the rules, receiving data including updated fraud detection rules and network type information indicating one network type to which the updated fraud detection rules are to be applied; and determining whether a vehicle having an on-board network is running, the on-board network including the plurality of controllers. When the vehicle is running, additionally determining whether the network type information indicates a drive network which is connected to a controller related to vehicle travel, when the network type information indicates the drive network, not updating to the updated fraud detection rules, and when the network type information does not indicate the drive network, updating to the updated fraud detection rules.
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59.发明授权公开(公告)号：US10896616B2
公开(公告)日：2021-01-19
申请号：US16413035
申请日：2019-05-15
摘要： An anomaly handling method using a roadside device is disclosed. The method includes receiving, from a vehicle, an anomaly detection notification, which includes level information indicating a level affecting safety, and a location of the vehicle. The method also includes obtaining a location of the roadside device and determining whether a distance between the location of the vehicle and the location of the roadside device is within a predetermined range. When the distance is within the predetermined range and shorter than a first predetermined distance, transmitting the received anomaly detection notification externally from the roadside device. When the distance is within the predetermined range and is longer than or equal to the first predetermined distance, changing to decrement a level indicated by the level information, and transmitting changed anomaly detection notification. When the distance is not within the predetermined range, not transmitting the received anomaly detection notification.
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公开(公告)号：US10725762B2
公开(公告)日：2020-07-28
申请号：US15465653
申请日：2017-03-22
发明人： Yoshihiro Ujiie , Hideki Matsushima , Jun Anzai , Toshihisa Nakano , Tomoyuki Haga , Manabu Maeda , Takeshi Kishikawa
IPC分类号： G06F8/65 , G06F8/654 , B60R16/023 , G06F11/00 , H04L12/46 , H04L12/40 , G06F11/14 , B60R16/02 , H04L29/08 , H04W4/48 , G06F21/64
摘要： A gateway device, connected to one or more buses used in communication by a plurality of ECUs on-board a vehicle, is provided with: a receiving unit that receives, from a server that acts as an external device external to the vehicle, firmware update information that includes updated firmware to be applied to one ECU from among the plurality of ECUs; and a control unit that determines, based on certain information about the ECU on which to apply the updated firmware, whether or not the ECU satisfies a certain condition, and if the certain condition is satisfied, causes the ECU to execute a certain process related to updating firmware, whereas if the certain condition is not satisfied, causes equipment other than the ECU to execute the certain process.
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