Ricoh Company, Ltd.

Masami Nasu

Jun Satoh

Junichi Shinohara

Shigeru Irisawa

Atsushi Satoh

An information processing system includes first and second information processing apparatuses. The first information processing apparatus transmits a request for status notification to the second information processing apparatus, which transmits a response of the status notification to the first information processing apparatus. The second information processing apparatus transmits a header of the response to the first information processing apparatus when receiving the request for the status notification from the first information processing apparatus, and transmits a part of a body of the response to the first information processing apparatus in response to the occurrence of a status change to be reported in the second information apparatus. The part of the body includes information on the status change. The second information processing apparatus transmits a last part of the body of the response to the first information processing apparatus when the status notification becomes unnecessary.

Information processing system, apparatus, and method

A registration part receives a product key of a program for performing a communication using a private key and a public key, and discrimination information of a computer using the program. The registration part registers in a management part, when an authentication of a license corresponding to the product key is completed in success, correspondence information between the product key and the discrimination information and other discrimination information regarding the correspondence information. A discrimination information sending part returns the other discrimination information to an electronic certificate issue apparatus. A checking part receives the other discrimination information and check whether the other discrimination information is registered in the management part. A certificate producing part produces, when the other discrimination information is registered in the management part, an individual certificate package containing the private key and the public key for each piece of the other discrimination information.

Electronic certificate issue system and method

An electronic device has, as operation modes, a first mode and a second mode reduced in power consumption from the first mode. The electronic device includes a main unit an operation of which is suppressed in the second mode; and a sub-unit. The sub-unit includes a communicating unit that performs communication via a communication line; and an operation mode controller that changes the operation modes from the second mode to the first mode when the communication with a predefined prescribed device is requested during the second mode and changes the operation modes from the first mode to the second mode at a timing corresponding to termination of the communication.

Electronic device and computer program product

An information processing device is arranged to acquire a first public key certificate and a first secret key from a server device by acquiring an individual identification information which is uniquely discriminable for the information processing device from the information processing device and transmitting the individual identification information to the server device. The information processing device is arranged to determine whether the information processing device is permitted to transmit device information to the server device through an encryption communication using the first public key certificate and the first secret key, by acquiring the individual identification information from the information processing device and comparing the acquired individual identification information with the individual identification information associated with at least one of the first public key certificate and the first secret key.

Information processing device, information processing method, and computer-readable recording medium

An information processing apparatus for collecting apparatus data from an apparatus connected through a network and sending the apparatus data to a server connected through the network includes a recording unit storing a secret key and a public key certificate which are encrypted by key data and commonly distributed; an obtaining unit for obtaining, from the information processing apparatus, individual identification data by which the information processing apparatus can be uniquely identified, sending a request to provide the predetermined key data through the network to the server by specifying the individual identification data, and receiving the key data encrypted by the individual identification data from the server; and a decoder for obtaining the individual identification data from the information processing apparatus, decoding the key data by using the individual identification data, and decoding the common public key certificate and the secret key by using the decoded key data.

Information processing apparatus, information processing method, and computer readable recording medium

An information processing device acquires first identification information of a computer to which the device is coupled, and records correspondence information indicating a correspondence between a product key of a predetermined program and the first identification information, and second identification information with respect to the correspondence information, in the device, if a license authentication with respect to the product key based on the first identification information is successful. The device generates an individual certificate package including a unique secret key and public key for each second identification information, and records the individual certificate package in the device in correspondence with each second identification information.

Information processing device, electronic certificate issuing method, and computer-readable storage medium

A managed device obtains an individual certificate with an ID of the managed device when the managed device is in a direct-managed state and determines that the certificate set as the certifying information for communicating with a managing device is a common certificate without an ID of the managed device.

Managed device, management system, method for controlling a managed device and medium

The image input unit comprises a pixel shift evaluation value and reliability calculating section that calculates a pixel shift evaluation value based on image data for a plurality of images photographed before and after an image sensing device is displaced for a predetermined amount. Moreover, a system controller judges whether pixel shift photography has been normally performed or not based on the pixel shift evaluation value, and displays the judgment result on a display.

Method of and unit for inputting an image, and computer product

A software update device capable of communicating with a target update device via a network, the software update device including: a certification information setting unit for generating a first certification information, and transmitting the first certification information to the target update device via a first communication path; a certification requesting unit for transmitting a second certification information to the target update device, and requesting the target update device to execute a certification process with the first and second certification information; and a transmitting unit for transmitting an update software for updating a software of the target update device to the target update device via a second communication path when the certification process succeeds, the second communication path having a process load less than that of the first communication path.

Communication device, software update device, software update system, software update method, and program

A technique is disclosed for storing in a recyclable expendable item used in an electronic apparatus first encrypted information generated by encrypting usable/unusable information pertaining to the expendable item using a first key, and a second key corresponding to the first key, decoding the first encrypted information using the second key; and controlling an operation of the electronic apparatus based on a decoding result of the decoding part and decoded usable/unusable information obtained by the decoding part.

Electronic apparatus, expendable item recycling apparatus, expendable item, electronic apparatus control method, expendable item recycling method, program, and computer-readable medium

There is provided an input unit which reads copyright digital data stored in a recording medium such as a CD-ROM, an operation unit which performs encryption of digital data based on an encryption algorithm from a plurality of encryption algorithms. A file unit outputs the digital data encrypted by the operation unit and an index value and the encryption operation equation generation parameter into one file. A reproducing apparatus obtains an encryption operation equation from the index value and the encryption operation equation generation parameter in this same file and reproduces the encrypted digital data.

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Kanagawa, Japan

Masami Nasu