Panasonic Intellectual Property Corporation of America

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Sun Patent Trust

Nara Institute of Science and Technology

Tomoyuki Haga

Hideki Matsushima

Manabu Maeda

Yoshihiro Ujiie

Takeshi Kishikawa

Yuji Unagami

Takamitsu Sasaki

Jun Anzai

Takayuki Ito

Natsume Matsuzaki

Yuishi Torisaki

Yuichi Futa

Toshihisa Nakano

Motoji Ohmori

Hisashi Takayama

Kenneth Alexander Nicolson

Ryo Kato

Taichi Sato

Masato Tanabe

Hiroyasu Terazawa

Yoshikatsu Ito

Ryo Hirano

Junichi Tsurumi

Yoshihiko Kitamura

Ryota Sugiyama

Hiroshi Amano

Hiroshi Okuyama

Rieko Asai

Tohru Wakabayashi

Hisashi Kashima

Teruto Hirota

Kenichi Matsumoto

Kakuya Yamamoto

Naohisa Nishida

Kouichi Kanemura

Takuya Kuwahara

Akito Monden

Kenji Harada

Masashi Hisai

Yukino Toriumi

Takafumi Kagawa

Yasuki Oiwa

Shigehiko Kimura

Ryousuke Kobayashi

Kaoru Yokota

Yukie Shoda

Yoshito Nakanishi

Kouji Kobayashi

Ryota Takahashi

Masahide Nakamura

Ayaka Mitani

Hajime Tasaki

Masahiro Mambo

Haruaki Tamada

Hitoshi Tahara

Takashi Kurano

Daiki Tanaka

Makoto Yamada

Ayaka Nakasaka

In a data distribution method according to the disclosure, first authentication servers and a first data server belong to a first group, and second authentication servers and a second data server belong to a second group different from the first group. A first authentication server obtains first transaction data that includes a data obtaining request indicating a request for obtaining or referring to data pertaining to an apparatus, and records a block including the first transaction data into its distributed ledger belonging to the first group. A second authentication server obtains the first transaction data, and records the block including the first transaction data into a distributed ledger belonging to the second group. The first authentication server causes the first data server to transfer the data pertaining to the apparatus held therein to the second data server or to make such data available for reference by the second data server.

Data distribution method, recording medium, and data distribution system

A malware detection method for a home network system including one or more home appliances that are connected to a home network includes: obtaining a plurality of setting values including at least information indicating a device type and an operating state of a target device subject to malware detection; selecting one detection model out of a plurality of detection models according to the plurality of setting values obtained; obtaining power consumption or current consumption of the target device; and detecting whether the target device is infected with malware, based on stable power or stable current obtained in the obtaining of the power consumption or the current consumption using the one detection model selected in the selecting, when the power consumption indicates stable power that varies within a predetermined range or the current consumption indicates stable current that varies within a predetermined range.

Malware detection method, malware detection device, and recording medium

A verification method includes: obtaining log information items generated in a device; storing the log information items in storage, and storing, in a blockchain, converted information items obtained by converting the log information items; and conducting, at a predetermined frequency, verification as to whether at least one of a target log information item or a target converted information item has been tampered with, based on the target log information item and the target converted information item, the target log information item being included in the log information items and targeted for verification, the target converted information item being included in the converted information items and corresponding to the target log information item. A higher frequency is determined as the predetermined frequency when a time point at which the target converted information item was stored in the blockchain is closer to a current time at which the verification is conducted.

Verification method, server, and recording medium

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.

Verification method, verification apparatus, and storage medium including program stored therein

An unauthorized communication detection method detects an unauthorized communication message on an in-facility network over which at least two devices including a first device and a second device are communicably connected, and includes: receiving, from the first device, a communication message transmitted from the first device to the second device; obtaining, when the communication message is received from the first device, first information indicating a state of at least one of (a) a person in a facility and (b) the at least two devices, and determining whether to execute processing pertaining to a device control command that controls the second device when the communication message received from the first device is a communication message including the device control command, the determining being performed based on the first information; and executing the processing pertaining to the device control command when the determining determines to execute the processing.

Unauthorized communication detection method, unauthorized communication detection device, and recording medium

A control method for an anomalous data sensing system including at least a plurality of authentication servers and including: sensing whether data obtained from a device is not anomalous; obtaining first transaction data including information indicating the data; verifying, by a first authentication server included in the plurality of authentication servers, the first transaction data obtained, when the data is sensed as not being anomalous; and recording a block including the first transaction data into a distributed ledger when an agreement about validity of the first transaction data is reached using a consensus algorithm.

Control method, recording medium, and anomalous data sensing system

A module for a vehicle includes: a first communication module that transmits and receives first data to and from a first in-vehicle module; a second communication module that transmits and receives second data to and from a second in-vehicle module; and a control module that controls relay of third data among the first communication module and the second communication module. In a case where reception data received by the control module from the first or second communication module is unauthorized, the control module stops relaying the third data in accordance with a traveling state of the vehicle satisfying a predetermined condition, The traveling state includes: the vehicle being stopped; a vehicle speed being at or below a predetermined speed; brakes being applied; a hazard indicator being on; a driver being in a state capable of driving; and/or self-driving functions being in an off state.

Communication device, control device, storage medium, and system for controlling relay of data among electronic control units based on a traveling state of a vehicle

An electronic control unit is connected to a network in an in-vehicle network system. The electronic control unit includes a first control circuit that operates on a first operating system and a second control circuit that operates on a second operating system. The first control circuit is connected to the network via the second control circuit. The second control circuit performs a first determination process on frames to determine conformity of the frames with a first rule. Upon determining that the frames conform to the first rule, the second control circuit transmits contents of the frames to the first control circuit. The first control circuit performs a second determination process on the contents of the frames to determine conformity with a second rule. The second rule is different from the first rule.

Vehicle communication apparatus, in-vehicle network system, and vehicle communication method

An electric lock control method includes: performing a first determination of whether a person is present in a predetermined region surrounding an electric lock, based on first information generated by an electronic device; when it is determined that a first person is present in the predetermined region in the performing of the first determination, performing a second determination of whether the first person is a person who is permitted to unlock the electric lock, based on second information related to movement of the first person; and controlling a state of the electric lock based on a result of the second determination, the state being a locked state or an unlocked state.

Electric lock control method, electric lock control system, and non-transitory computer-readable recording medium

An anomaly detection server is provided. The anomaly detection server is a server for counteracting an anomalous frame transmitted on an on-board network of a single vehicle. The anomaly detection server acquires information about multiple frames received on one or multiple on-board networks of one or multiple vehicles, including the single vehicle. The anomaly detection server, acting as an assessment unit that, based on the information about the multiple frames and information about a frame received on the on-board network of the single vehicle after the acquisition of the information about the multiple frames, assesses an anomaly level of the frame received on the on-board network of the single vehicle.

Security processing method and server

A gateway device is connected to a plurality of electronic controllers on-board a vehicle. The gateway device acquires firmware update information, which includes at least a part of updated firmware to be applied to a first electronic controller, patch data, and information indicating where to apply the patch data. When the gateway device determines that the first electronic controller does not include a firmware cache for performing a pre-update firmware cache operation, the gateway device executes a proxy process. In this regard, the gateway device requests the first electronic controller to transmit boot ROM data to the gateway device, merges the patch data and existing firmware to create updated boot ROM data with updated firmware, and transmits the updated boot ROM data to the first electronic controller that updates the boot ROM data and resets the first electronic controller with the updated firmware.

Gateway device, in-vehicle network system, and firmware update method

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.

Vehicle anomaly detection server, vehicle anomaly detection system, and vehicle anomaly detection method

A method used in an on-board network system, having electronic controllers that exchange messages and a fraud-detecting electronic controller. The method includes receiving an inquiry for a vehicle status indicating whether a vehicle in which the fraud-detecting electronic controller is installed is running from an external device, transmitting the vehicle status to the external device, and determining whether a message transmitted conforms to fraud detection rules. The method also includes receiving from the 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 further includes determining whether the vehicle 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.

Method of updating fraud detection rules for detecting malicious frames, fraud detecting electronic control unit, and on-board network system

A gateway that notifies a fraud detection server located outside a vehicle of information about an in-vehicle network system including an in-vehicle network includes: a priority determiner that determines a priority using at least one of: a state of the vehicle including the in-vehicle network system; an identifier of a message communicated on the in-vehicle network; and a result of fraud detection performed on the message; a frame transmitter-receiver that transmits and receives the message communicated on the in-vehicle network; a frame interpreter that extracts information about the in-vehicle network based on the message received by the frame transmitter-receiver; and a frame uploader that notifies the fraud detection server of notification information including the priority and the information about the in-vehicle network.

Electronic control device, fraud detection server, in-vehicle network system, in-vehicle network monitoring system, and in-vehicle network monitoring method

The control network system is connected to electronic control unit(s) and a communication device, and includes security sensor(s) that transmits a security alert indicating that an indication of a security breach is detected to the network, if the indication is detected in at least one of the network, the electronic control unit(s), or the communication device. The intrusion path analysis device includes: an alert obtainer that obtains the security alert from the security sensor(s); an event obtainer that obtains an event history of an event that occurs in the control network system; and an intrusion path analyzer that performs an analysis on an intrusion path of an attack on the basis of the security alert, the event history, and an intrusion depth indicating an intrusion level to be assumed in a case the security alert occurs, and that outputs a result of the analysis.

Intrusion path analysis device and intrusion path analysis method

Growing community of inventors

Nara, Japan

Tomoyuki Haga