摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A service providing system includes a portable communication terminal operated by a user; a service providing apparatus providing a service to the user, and a server managing the service providing apparatus, wherein the service providing apparatus calculates a response using a challenge, and the portable communication terminal transmits a challenge generated by the server to the service providing apparatus subjected to a legitimacy check of the service providing apparatus and presents a result of the legitimacy check based on a response calculated by the service providing apparatus subjected to the legitimacy check using the transmitted challenge.
摘要:
An ID-value assessment device includes: an assessment calculation section that calculates a value assessment of a user to be assessed by using an assessment function of outputting the value assessment, which represents values of the corresponding user, in response to inputs of user attribute information representing an attribute of the user and service attribute information representing an attribute of a service and general information; and an assessment output section that outputs a user ID of the user to be assessed and the value assessment of the corresponding user, which is calculated by the assessment calculation section, in association with each other.
摘要:
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.
摘要:
There is provided an electronic appliance including a plurality of electrical parts having electrical characteristics that are different thereamong and for each electronic appliance, a characteristics measuring unit that measures the characteristics of at least one electrical part, a switch that switches between the electrical parts whose characteristics are to be measured by the characteristics measuring unit, and a control unit that controls the switch and causes the characteristics measuring unit to measure the characteristics of a predetermined electrical part, and that transmits, to a power management apparatus managing at least power supply to its own electronic appliance, information relating to the characteristics measured by the characteristics measuring unit and an appliance ID of its own electronic appliance.