摘要:
In a document protecting system, a distributor terminal implementing a document protecting program obtains an encryption key to encrypt a document file, associates a print request to the document file, and encrypts the document file by the encryption key. And a user terminal implementing a document printing program obtains a decryption key of document file being encrypted, decrypts the document file based on the obtained decryption key, obtains a print requirement associated with the document file, and executes a printing process so as to satisfy the print requirement.
摘要:
A disclosed measuring device generates measurement data recorded by continuously measuring measurement information. Divided data items are generated by dividing the measurement data. A feature quantity representing each of the divided data items generated is acquired. A time stamp is acquired based on measurement time data, where the measurement time data include the feature quantities and measurement time identification information of each of the divided data items, the measurement time identification information expressing a measurement time of each of the divided data items on a predetermined time axis. An electronic signature is generated for the measurement time data and the time stamp by using a private key specific to the measuring device. The measurement time data, the time stamp, and the electronic signature are saved in association with the measurement data.
摘要:
A transmission system includes: a transmission management system and a fee management system. The transmission management system manages participation time information using a given transmission terminal. The fee management system manages participation fee information. The transmission management system includes a transmission unit that transmits the participation time information to the fee management system. The fee management system includes: a user management unit that manages user identification information and terminal identification information in a manner linked; a reception unit that receives the participation time information transmitted from the transmission management system; a participation time calculation unit that calculates a total participation time of conversation; a participation fee calculation unit that calculates a participation fee; and a participation fee summing unit that refers to the user management unit, sums up participation fees of each transmission terminal, and calculates a total participation fee for each user.
摘要:
A maintenance mediation apparatus mediating maintenance operation instruction information in which a maintenance center gives an instruction for a maintenance operation to a corresponding one of maintenance target apparatuses connected thereto through a network is disclosed. The maintenance mediation apparatus includes a reception part receiving the maintenance operation instruction information from the maintenance center; a maintenance policy database storing a maintenance policy defining at least one of whether to authorize the maintenance operation on the corresponding maintenance target apparatus by the maintenance center and whether to authorize transmission of each item of usage condition information of the corresponding maintenance target apparatus to the maintenance center; a determination part determining whether to execute the maintenance operation referring to the maintenance policy database; and a transmission part transmitting the received maintenance operation instruction information to the corresponding maintenance target apparatus based on the result of the determination by the determination part.
摘要:
An image reading apparatus, an image information verification apparatus, an image reading method, an image information verification method, and an image reading program are disclosed. The image reading apparatus includes an image acquisition unit for acquiring an image from an image reading unit for reading the image formed on a medium, a medium description receiving unit for receiving a medium description provided by a medium description acquisition unit for acquiring the medium description of the medium, a set generating unit for generating a set of information about the image and information about the medium description, and a set unique value acquisition unit for acquiring a set unique value about the set.