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11.
公开(公告)号:US20200053112A1
公开(公告)日:2020-02-13
申请号:US16654728
申请日:2019-10-16
Inventor: Yuishi TORISAKI , Tomoyuki HAGA , Takamitsu SASAKI , Takeshi KISHIKAWA , Hideki MATSUSHIMA
Abstract: A vehicle anomaly detection server includes: a communicator that communicates with a vehicle to receive a log of an in-vehicle network in the vehicle; a processor; and a memory including at least one set of instructions that, when executed by the processor causes the processor to perform operations including: selecting, when information indicating that an anomaly is occurring to a first vehicle among vehicles is obtained by the processor, an anomaly-related vehicle from among the vehicles based on the anomaly, the first vehicle being the vehicle that communicates with the communicator; transmitting, to the anomaly-related vehicle via the communicator, a first request to transmit a log of an in-vehicle network in the anomaly-related vehicle; and determining whether an anomaly is occurring to the anomaly-related vehicle, based on information indicated by the log transmitted from the anomaly-related vehicle and received by the communicator.
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12.
公开(公告)号:US20190263336A1
公开(公告)日:2019-08-29
申请号:US16413035
申请日:2019-05-15
Inventor: Tomoyuki HAGA , Hideki MATSUSHIMA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: B60R16/023 , H04W12/12 , G08G1/00 , G08G1/16
Abstract: 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:US20240314145A1
公开(公告)日:2024-09-19
申请号:US18671378
申请日:2024-05-22
Inventor: Tomoyuki HAGA , Takamitsu SASAKI , Hajime TASAKI , Hideki MATSUSHIMA
IPC: H04L9/40
CPC classification number: H04L63/1416 , H04L63/1425
Abstract: A threat information analysis server includes: an update manager that manages update information indicating that function addition to an IoT device is performed; a threat information manager that stores threat information of a cyberattack; a risk level manager that manages risk level information defining a risk level of the IoT device; a related threat information manager that manages the threat information and related threat information associating the IoT device with the risk level; a risk level updater that associates the threat information and the risk level of the IoT device with each other and updates the related threat information, based on the update information; and an outputter that outputs the related threat information managed by the related threat information manager.
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14.
公开(公告)号:US20230246849A1
公开(公告)日:2023-08-03
申请号:US18131448
申请日:2023-04-06
Inventor: Yuji UNAGAMI , Manabu MAEDA , Tomoyuki HAGA , Hideki MATSUSHIMA , Jun ANZAI
CPC classification number: H04L9/3247 , H04L9/3242 , H04L63/123 , H04L67/12 , G06F21/64 , G06F21/6236 , G08G1/09
Abstract: A method for verifying content data to be used in a vehicle is provided. The method includes acquiring content data, acquiring, from partial data divided from the content data, a respective plurality of first hash values, acquiring a signature generated by using the first hash values and a key, acquiring state information that indicates a state of a vehicle, determining an integer N that is greater than or equal to one based on the acquired state information, generating, from N pieces of partial data included in the partial data, respective second hash values, verifying the content data by using each of (a) a subset of the plurality of first hash values respectively generated from partial data other than the N pieces of partial data, (b) the second hash values, and (c) the signature, and outputting information that indicates a result of the verifying.
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15.
公开(公告)号:US20230089171A1
公开(公告)日:2023-03-23
申请号:US17991357
申请日:2022-11-21
Inventor: Tomoyuki HAGA , Hideki MATSUSHIMA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: G08G1/00 , G08G1/16 , H04W4/46 , H04W12/12 , B60R16/023
Abstract: An anomaly handling method using a device installed outside of a vehicle is disclosed. The method includes receiving, from the 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 another vehicle and determining whether a distance between the location of the vehicle and the location of the other vehicle is within a predetermined range. When the distance is within the predetermined range and is shorter than a first predetermined distance, not changing the level information and transmitting the received anomaly detection information to the other vehicle. 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 information to the other vehicle.
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公开(公告)号:US20210349981A1
公开(公告)日:2021-11-11
申请号:US17381397
申请日:2021-07-21
Inventor: Yoshihiro UJIIE , Hideki MATSUSHIMA , Makoto FUJIWARA
Abstract: An authentication method is used by an automated driving system that includes a vehicle and an external device, the external device communicating with the vehicle to cause the vehicle to implement automated driving. The vehicle holds a first certificate that certifies validity of the vehicle. The external device holds a second certificate that certifies validity of the external device. The authentication method includes: validating a third certificate that certifies validity of a combination of the vehicle and the external device, in accordance with a result of device authentication performed between the vehicle and the external device by reference to the first certificate and the second certificate.
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17.
公开(公告)号:US20210226872A1
公开(公告)日:2021-07-22
申请号:US17201839
申请日:2021-03-15
Inventor: Yoshihiro UJIIE , Tomoyuki HAGA , Manabu MAEDA , Hideki MATSUSHIMA , Takeshi KISHIKAWA , Junichi TSURUMI , Hisashi KASHIMA , Yukino TORIUMI , Takuya KUWAHARA
Abstract: 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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18.
公开(公告)号:US20210090442A1
公开(公告)日:2021-03-25
申请号:US17115055
申请日:2020-12-08
Inventor: Tomoyuki HAGA , Hideki MATSUSHIMA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: G08G1/00 , G08G1/16 , H04W4/46 , H04W12/12 , B60R16/023
Abstract: 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 is shorter than a first predetermined distance, not changing the level information and transmitting the received anomaly detection notification externally from the one vehicle. 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 externally from the one vehicle.
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19.
公开(公告)号:US20200351123A1
公开(公告)日:2020-11-05
申请号:US16929918
申请日:2020-07-15
Inventor: Tomoyuki HAGA , Manabu MAEDA , Takamitsu SASAKI , Hideki MATSUSHIMA
Abstract: A network system includes a first network through which a frame of a first type is transmitted in accordance with a first communication protocol and includes a second network in which a frame of a second type is transmitted in accordance with a second communication protocol. A gateway device is connected to the first network and the second network. The gateway device sequentially receives frames of the first type from the first network and determines whether to transmit data regarding the received frames of the first type to the second network. The gateway device transmits, to the second network, a frame of the second type including data regarding a plurality of the frames of the first type determined to be transmitted to the second network when a condition relating to a number of frames of the first type received by the gateway device is satisfied.
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20.
公开(公告)号:US20200177413A1
公开(公告)日:2020-06-04
申请号:US16785040
申请日:2020-02-07
Inventor: Manabu MAEDA , Tomoyuki HAGA , Takamitsu SASAKI , Hideki MATSUSHIMA
Abstract: An electronic control unit (ECU) is provided. The ECU is connected to a first network in an onboard network system. The onboard network system includes the first network and a second network. In the first network, first-type frames are transmitted following a first communication protocol. In the second network, second-type frames are transmitted following a second communication protocol. The ECU generates first-type frames following the first communication protocol, and transmits the generated first-type frames to the first network. The ECU receives external information indicating state information of a device on the onboard network system received from another electronic control unit connected to the first network or the second network, or receives external information indicating information received from a communication module configured to communicate with the server via an external network.
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