Sony Corporation

Azbil Corporation

Seiichi Matsuda

Shiho Moriai

Tomoyuki Asano

Yu Tanaka

Masakazu Ukita

Masanobu Katagi

Yohei Kawamoto

Asami Yoshida

Koichi Sakumoto

Harunaga Hiwatari

Masafumi Kusakawa

There is provided an information processing device including a secret key generator that generates a secret key from a random number received from an external device that provides a service, and a given value, a public key generator that generates a public key on the basis of the secret key by using a function identically set in a plurality of the services, a transmitter that transmits the public key to the external device, and an authentication processor that conducts authentication with the external device using the secret key.

Information processing device, information processing method, and program

A plurality of user terminals or sensors transmit data encrypted by individual cryptographic key, a server receives the encrypted data items, and executes a data process according to a program defining a decryption process sequence. Bit slice expression data is generated by performing a bit slice process with respect to the plurality of encrypted data items which are decryption target, bit slice expression key based on the cryptographic key of each encrypted data item is generated, round key is generated based on a bit slice expression key, a decryption process including operation and movement processes of a block unit of the bit slice expression data, and an operation using the round key is executed, and a plurality of plain text data items corresponding to the plurality of encrypted data items are generated by a reverse conversion of the data with respect to the decryption process results.

Information processing apparatus, information processing method, and program

There is provided an analysis server including a first verifying unit that analyzes data acquired from a local power management system composed of an electronic appliance provided with a sensor and a power management apparatus managing power supply to the electronic appliance connected to a power network, by using history information of the local power management system or data acquired from another local power management system with a power usage state similar to that of the local power management system, a second verifying unit that analyzes the data acquired from the local power management system, by using an estimated value calculated by simulation using characteristics information and/or specification information of the electronic appliance, and a control unit that controls the first verifying unit and the second verifying unit.

System and method for securing a power management apparatus from an attack by verifying acquired data based on statistical processing, data simulation, and watermark verification

There is provided a transmitting device including a public key information adder that adds information on a public key corresponding to an electronic signature to a sender address in an email with the electronic signature attached, and a transmitter that transmits the email.

Transmitting device, receiving device, transmitting method, receiving method, and program

Speed-up of a cryptographic process by software (program) is realized. A data processing unit which executes a data process according to a program defining a cryptographic process sequence is included, and the data processing unit, according to the program, generates a bit slice expression data based on a plurality of plain text data items which are encryption process targets and a bit slice expression key based on a cryptographic key of each plain text data item, generates a whitening key and a round key based on the bit slice expression key, executes the cryptographic process including operation and movement processes of a block unit of the bit slice expression data, and an operation using the round key, as a process according to a cryptographic algorithm Piccolo, and generates the plurality of encrypted data items corresponding to the plurality of plain text data items by the reverse conversion of the data with respect to the cryptographic process results.

A terminal device, which includes an encrypting section encrypting input data in a fully homomorphic encryption scheme to generate encrypted data. The terminal device includes an encrypted data transmission section transmitting the encrypted data generated by the encrypting section to a server. The terminal device includes an encrypted data reception section receiving the encrypted data on which the server implements a predetermined process and a decrypting section decrypting the encrypted data on which the predetermined process is implemented.

Terminal device, server, data processing system, data processing method, and program

There is provided a power management system including a power receiving unit for receiving power from outside according to consumption of power, an electrical storage unit for storing the power received by the power receiving unit, and a discharge control unit for controlling a second power amount discharged from the electrical storage unit so that a first power amount provided by the power receiving unit attains a predetermined time-series pattern.

Power management system, power management apparatus, and power management method

Speed-up of a cryptographic process by software (program) is realized. A data processing unit which executes a data process according to a program defining a cryptographic process sequence is included, and the data processing unit, according to the program, generates a bit slice expression data based on a plurality of plain text data items which are encryption process targets and a bit slice expression key based on a cryptographic key of each plain text data item, generates a round key based on the bit slice expression key, executes the cryptographic process including operation and movement processes of a block unit of the bit slice expression data, and an operation using the round key, and generates the plurality of encrypted data items corresponding to the plurality of plain text data items by the reverse conversion of the data with respect to the cryptographic process results.

A register circuit having a plurality of registers enabling the writing and reading of data by the specification of an address; a register controlling circuit monitoring data of a plurality of registers of the register circuit through the specification of an address, and writing, to a register pre-established in the register circuit, for activating devices; and a signal transmitting circuit causing a device to execute a specific operation, based on a specified address and on data read from the register circuit are provided; and not only is a collection of first bits for controlling jointly the individual operations of the plurality of devices assigned in a first register that is established in advance in the plurality of registers, but also second bits for controlling individually the individual operations in the plurality of devices are assigned respectively in a plurality of respective second registers that differ from the first register.

Device activating unit and CPU

There is provided a power management apparatus including: a managed appliance registering unit carrying out authentication on an electronic appliance connected to a power network and registering an electronic appliance for which the authentication has succeeded as a managed appliance, a control unit controlling operation of the managed appliance and supplying of power to the managed appliance, a managed appliance information acquiring unit acquiring, from the managed appliance, as managed appliance information, at least any of appliance information including identification information that is unique to the electronic appliance, information indicating an operation state of the electronic appliance, information indicating an usage state of the electronic appliance and power information of the electronic appliance, and an appliance state judging unit judging a state of the managed appliance based on the managed appliance information acquired by the managed appliance information acquiring unit.

Apparatus and method for managing power of an electronic appliance

There is provided a power management apparatus including a game service providing unit providing, to an electronic appliance, a service using game contents whose theme is power. The game service providing unit includes a game control unit controlling execution of the game contents, a real world constructing unit constructing a setting of a game reflecting a real-world environment, based on managed appliance information stored in a database, and a virtual world constructing unit constructing a setting of the game reflecting a virtual environment, based on a setting set in advance in the game contents. The game control unit is operable to initialize the game contents by combining the setting of the game constructed by the real world constructing unit and the setting of the game constructed by the virtual world constructing unit.

Power management apparatus, and method of providing game contents

There is provided an electronic watermark generating apparatus including an appliance characterizing information generating unit that generates appliance characterizing information that characterizes an electronic appliance, by using physical data acquired by a sensor that measures characteristics of the electronic appliance, an electronic watermark generating unit that generates, in relation to the appliance characterizing information, electronic watermark information that is used for detecting whether information has been tampered with or not, an embedded position deciding unit that analyzes the appliance characterizing information, and decides an embedded position for the electronic watermark information in the appliance characterizing information, and an electronic watermark embedding unit that embeds the electronic watermark information generated by the electronic watermark generating unit in a position on the appliance characterizing information decided by the embedded position deciding unit.

Electronic watermark generating apparatus, electronic watermark verifying apparatus, method of generating electronic watermark, and method of verifying electronic watermark

There is provided an outlet expansion apparatus including a first connection outlet to which an electronic appliance is to be connected, a second connection outlet that is for connecting to a power supply outlet that is to be a supply source of power, and a delegate authentication unit that carries out, in a case the electronic appliance not having a function of carrying out authentication with a power management apparatus managing an amount of power to be supplied to the electronic appliance is connected to the first connection outlet and the power supply outlet is connected to the second connection outlet, authentication to be carried out on the power management apparatus by the electronic appliance connected to the first connection outlet on behalf of the electronic appliance.

Outlet expansion appartus containing a delegate authentication unit to perform authentication of an electronic appliance with a power management apparatus

Provided is a method where a power management apparatus (a) acquires, from a server managed by a manufacturer of an electronic appliance, a public key paired with a secret key that the electronic appliance and the server hold, (b) generates a ciphertext by generating a random number and encrypting the random number by the public key, and (c) transmits the ciphertext to the electronic appliance and the server, where the electronic appliance (d) restores the random number by decrypting the ciphertext transmitted in (c), (e) causes an electrical part to operate, based on the random number, and (f) transmits to the server the value of current flowing through the electrical part, and where the server (g) restores the random number by decrypting the ciphertext transmitted in (c), (h) calculates the value of current to flow through the electrical part based on the random number, and (i) compares values of current.

Growing community of inventors

Tokyo, Japan

Seiichi Matsuda