Kabushiki Kaisha Toshiba

Kioxia Corporation

Kentaro Umesawa

Tatsuyuki Matsushita

Hiroshi Watanabe

Hideo Shimizu

Hideyuki Miyake

Kenji Kojima

Yuuki Tomoeda

Toshinari Takahashi

Naoko Yamada

Atsushi Yamazaki

Shinji Yamanaka

Fangming Zhao

Yuta Kageyama

Taku Kato

Hiroshi Isozaki

Toru Kambayashi

Yuichi Komano

Satoshi Ito

Hideaki Sato

Mikio Hashimoto

Haruhiko Toyama

Takeshi Kawabata

Hideki Matsumoto

Jun Kanai

Teruji Yamakawa

Nakaba Kogure

Ryuiti Koike

Toshiyuki Kito

Yoshiyuki Amanuma

Yoshiyuki Kudoh

Takeyuki Minamimoto

Ryuta Nara

Hirotomo Kobayashi

Junpei Futagi

Masahiko Motoyama

Shintaro Haba

Masaki Saito

Masamitsu Ohhashi

A memory system comprising a first storage region which stores first firmware corresponding to an external first electronic control apparatus; a second storage region which stores second firmware corresponding to an external gateway and third firmware corresponding to the first electronic control apparatus; and a controller configured to transmit the second firmware and the third firmware to the gateway on the basis of a first command received from the gateway, and transmit the first firmware to the gateway on the basis of a second command received from the gateway.

Memory system with accessible storage region to gateway

A memory system includes a nonvolatile memory and a controller that controls the nonvolatile memory. The controller is configured to generate information relating to encryption and decryption of data based on a location of the memory system and to enable at least one process of encrypting data to be written to the nonvolatile memory or decrypting data read from the nonvolatile memory by using the information.

Memory system, method of controlling access to memory system, and mobile computing device

According to one embodiment, a memory system includes a first nonvolatile memory, a second nonvolatile memory and a controller. The first nonvolatile memory includes a first memory element. The second nonvolatile memory includes a second memory element in which data is able to be written only once. The second memory element stores first key information. The controller receives second key information stored in an information processing apparatus, generates a first key using the first key information and the second key information, and generates a second key using at least the first key. The controller encrypts data, which is to be written into the first nonvolatile memory, with the second key, and decrypts data, which is read from the first nonvolatile memory, with the second key.

Memory system, information processing apparatus, and information processing system

According to one embodiment, a storage device includes a nonvolatile memory and a controller. The controller is configured to control data write to the nonvolatile memory and data read from the nonvolatile memory based on a command from a host. The controller includes at least one processor. The nonvolatile memory stores first firmware for normal operation and second firmware for recovery. The first firmware is firmware to cause the at least one processor to control the data write and the data read based on the command. The second firmware is firmware to cause the at least one processor to recover the first firmware. The second firmware is stored in the nonvolatile memory with higher reliability than the first firmware.

Storage device

A storage device includes a storage and a controller. The controller can control data write to the storage and data read from the storage. The controller includes a first processor, a second processor, a first bus, a memory access control device, and a second bus. The memory access control device can manage a memory access control information table. The memory access control information table stores access control information indicating a range of each of areas of the memory and an identifier associated with each area. The memory access control device can compare the identifier output to the first bus with the identifier in the memory access control information table, and determine whether to allow the access to the memory requested by the second processor.

Storage device, memory access control system, and memory access control method

An information processing apparatus includes a nonvolatile memory, a flag settable to a first value indicating that a program stored in a memory region of the nonvolatile memory has not been verified, and to a second value indicating that the program has been verified, a switching circuit configured to set the flag to the first value, in response to a request for permission to modify the program stored in the memory region, and a verification circuit that sets the flag to the second value upon verification of the program stored in the memory region, and upon restart of the information processing apparatus, carries out a verification process of the program prior to execution of the program if the first value is set in the flag, and executes the program without the verification process if the second value is set in the flag.

Efficient secure boot carried out in information processing apparatus

A relay apparatus according to an embodiment includes a request transmitting unit, a response receiving unit, and a data transmitting unit. The request transmitting unit transmits an acquisition request to a provision apparatus. The response receiving unit receives the second data from the provision apparatus in response to the acquisition request. The data transmitting unit transmits, to the electronic control unit, the second data received from the provision apparatus, thereby causing the electronic control unit to update the first data firstly stored therein with the second data. When the updating has failed, the data transmitting transmits the first data to the electronic control unit, thereby causing the electronic control unit to restore the first data.

Relay apparatus, relay method, and computer program product

According to an embodiment, a data storage device includes a data accumulation unit, a bus interface, and a processor. The processor is configured to control operation of the data storage device so as to spontaneously acquire data from an in-vehicle network via the bus interface and store the data in the data accumulation unit. The processor includes a message processing unit and a data access processing unit. The message processing unit is configured to transmit and receive messages, via the bus interface, to and from an electronic control unit or an external device connected to the in-vehicle network. The data access processing unit is configured to command the data accumulation unit to write and read data. Data included in a message received by the message processing unit is written in the data accumulation unit in accordance with a command of the data access processing unit.

Data storage device

An in-vehicle gateway device according to an embodiment includes a storage unit, a plurality of internal communication processors, a routing processor and a storage controller. The storage unit stores therein data output by an electronic control unit included in the in-vehicle system. The internal communication processors include an internal communication processor to which at least one electronic control unit is connected. The routing processor transfers data among the internal communication processors and outputs at least a part of the transferred data to the storage unit in a form capable of being stored in the storage unit. The storage controller manipulates or filters, in accordance with a certain rule, at least one of the data to store in the storage unit and the data output from the storage unit.

In-vehicle gateway device, storage control method, and computer program product

According to one embodiment, a memory system includes a host interface, a first storage unit which stores data in a nonvolatile manner, and a memory controller. The memory controller includes a management information generating unit which generates command information for every command received from a host through the host interface and a digital signature calculating unit which generates a digital signature from the command information using a secret key. The management information generating unit generates management information which contains the command information and the digital signature for the every command.

Memory system and method of generating management information

According to an embodiment, an information processing device includes: an extracting unit configured to extract a feature quantity of a content; a first detecting unit configured to detect a point in the content where variation of the feature quantity is a first predetermined amount or more; a second detecting unit configured to detect components of watermark information including components corresponding to respective intervals based on the point; a determining unit configured to determine a reliability of the watermark information that is detected; and a selecting unit configured to select a first watermark information from the watermark information based on a result of determination determined by the determining unit.

Information processing device and computer program product

An apparatus includes a first processing unit to judge, whether the route information storing unit stores a second next destination address; a second processing unit to judge whether a received packet includes an message authentication code, in the case where the route-information storing unit stores the second next destination address; a third processing unit to judge whether the key-information storing unit stores a second shared key, which is a first shared key shared between the information processing apparatus, in the case where the received packet does not include the message authentication code for the second next destination address; a third packet generating unit to generate a third packet, which includes a next destination and information indicating that the generation of an message authentication code is impossible, in the case where the key information storing unit does not store the second shared key.

Information processing apparatus and information processing method

According to an aspect of the present invention, there is provided a data transmitting apparatus including an authenticator generating unit and a communicating unit. The authenticator generating unit generates a first authenticator by using a first encryption key and generates a second authenticator including a first to an n-th fragment information items by using a second encryption key. The communicating unit transmits a first packet including the first authenticator and the first fragment information item to a destination device and, after the first packet is transmitted, if a response indicating successful authentication is not received from the destination device within a certain period, sequentially transmits an i-th packet (i is an integer being 2 or more and n or less) including the i-th fragment information item to the destination device.

Data transmitting apparatus and data authenticating method

Growing community of inventors

Kawasaki, Japan

Kentaro Umesawa