Kabushiki Kaisha Toshiba

Toshiba Solutions Corporation

Masataka Yamada

Minoru Nishizawa

Tatsuro Ikeda

Junichi Yamamoto

Seiichiro Tanaka

Kouji Gouda

Yuuichirou Esaki

Koji Okada

Toshio Okamoto

Shinichi Matsukawa

Takuya Yoshida

Shingo Abe

Yoshihiro Fujii

Kyoji Yamashita

Takanori Nakamizo

Yasuomi Une

Michiyo Ikegami

Masaya Hirabara

Kenjiro Naemura

Yuichiro Esaki

Rei Yano

Yuki Kaseda

Yuuki Matsuoka

Shinko Riku

Hidekazu Nishizawa

Naoto Akimoto

Kazuko Abe

Yasuhide Kurosaki

A storage unit of a time-series data accumulation device of an embodiment stores statistical value data. A determination unit determines an interval function on the basis of data capacity, and a total amount of time elapsed from the beginning of measurement of a time-series data. A first calculation unit calculates an interval indicating an amount of time required to measure all the time-series data items constituting desired statistical value data on the basis of the determined interval function. A second calculation unit acquires all the time-series data items on the basis of the calculated interval, and thereafter calculates the statistical value on the basis of all the acquired time-series data items. A write unit writes the calculated statistical value to the storage unit as the statistical value data.

Time-series data accumulation device

A re-encryption system according to this embodiment includes a file sharing apparatus and a re-encryption apparatus. Upon receiving a file request from the client apparatus, the file sharing apparatus acquires a first encrypted file based on the file request, and transmits a re-encryption request including the first encrypted file to the re-encryption apparatus. The re-encryption apparatus re-encrypts the first encrypted file included in the re-encryption request to the second encrypted file based on the re-encryption key, and transmits the second encrypted file to the file sharing apparatus. The file sharing apparatus transmits the second encrypted file to the client apparatus. The client apparatus obtains the file by decrypting the second encrypted file based on a private key corresponding to the public key of the member.

Re-encryption system, re-encryption apparatus, and program

According to one embodiment, a policy management system includes a user terminal, an ID provider system which manages an identity of a user, and a service provider system which provides service data. The ID provider system stores a pair of an old policy and a new policy with respect to each service provider ID. The ID provider system stores information with respect to each service provider ID, the difference-adaptive definition information defining a first condition which is referred to when a date of transmission of an access request message is within a transition period from the old policy to new policy, and a second condition which is referred to when the date of transmission of the access request message is out of the transition period.

Policy management system, id provider system, and policy evaluation device

A policy storage unit of an ID provider device according to an embodiment stores, for each service provider ID, policy information representing a user to which transmission of service data is permitted and policy information representing a user of a target in which transmission permission of service data is deleted. When a predetermined cycle comes or when a use status of the service provider device changes, the ID provider device acquires use status information of the service provider device transmitted from the service provider device, and updates a service use status storage unit based on the acquired use status information. When the service use status storage unit is updated, the ID provider device decides a deletion target account of each service provider ID.

Authentication collaboration system, ID provider device, and program

In a file-access control system according to an embodiment of this invention, control data in accordance with actions made is imparted, as an obligation-type policy, to a document file. Next, a policy evaluation control unit evaluates and executes the obligation-type policy imparted to the document file in accordance with the action to the document file. The execution of the obligation-type policy includes the controlling of a document application on the basis of an obligation fulfillment action. Therefore, an active control can be performed in accordance with any manipulation made to the document, and the access to the document can be changed.

File-access control apparatus and program

An ID provider device according to an embodiment includes a policy information storage unit that stores policy information representing a user of a target to whom transmission of service data is permitted, an authentication collaboration request preliminary processing unit that performs a policy evaluation process and an account collaboration process at a timing according to a log-in status of a user terminal when an authentication collaboration request is received, and an authentication collaboration request transfer unit that transfers the authentication collaboration request to the authentication collaboration request preliminary processing unit when the authentication collaboration request is received from the service provider device.

Authentication collaboration system and ID provider device

A content management system according to an example of the invention accepts a storage request including a content ID to identify a content, records reference data which is used to make reference to the content and the content ID in a recording unit in association with each other when the content has been already recorded in the recording unit, and requests the content for a storage request issuer and records the content and the content ID in the recording unit in association with each other when the content is not yet recorded. The content management system accepts an acquisition request including the content ID, reads the content from the recording unit, and distributes the content to an acquisition request issuer.

Content management system, recording medium and method

A data searching unitof a data searching apparatusObtains, according to a searching request including a search condition specified by a data searching application, metadata which satisfy the search condition from a data storage unit, and instructs an external communication unitto request searching of data to a data providing apparatuswith the same search condition.

Data searching system, method of synchronizing metadata and data searching apparatus

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Fuchu, Japan

Masataka Yamada