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Communication apparatus and a communication system
| Details |
Inventors: Yamamoto, Takahisa;
Assignee: Canon Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Oen; William
Assistant Examiner: Clark; Robin
Attorney, Agent or Firm: Fitzpatrick, Cella, Harper & Scinto
A communication device according to the present invention comprises an enciphering transmitter for enciphering data and transmitting enciphered data, a counter for obtaining a count of a quantity of enciphered data, and an accounting circuit for calculating, in accordance with the count held by the counter, an amount to charge a user for the data. |
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DETAILED DESCRIPTION To resolve these problems, it is one object of the present invention to provide an accounting system that can calculates a charge while taking into consideration the types and quality of information and service.
To achieve the object, according to one embodiment of the present invention, provided are encipher transmission means for enciphering data and transmitting enciphered data; counting means for obtaining a count of quantity of data to be enciphered; and accounting means for charging a user for the enciphered data in consonance with a count value held by the counting means.
According to another embodiment, provided are encipher transmission means for enciphering data as units of a block each and for transmitting the enciphered data; counting means for obtaining a count of the blocks to be enciphered; and accounting means for charging a user for the enciphered data in consonance with a count value held by the counting means.
According to an additional embodiment, provided are encipher transmission means for enciphering data and transmitting enciphered data; counting means for obtaining a count of cryptographic keys that are employed for enciphering; and accounting means for charging a user of the enciphered data in consonance with a count value held by the counting means.
According to a further embodiment, provided are encipher transmission means for enciphering data and transmitting enciphered data while updating a cryptographic key; counting means for obtaining a count of feedback calculations that are performed for updating the cryptographic key; and accounting means for charging a user of the enciphered data in consonance with a count value held by the counting means.
According to still another embodiment, provided is a communication system comprising: a transmission terminal, including encipher transmission means for enciphering data and transmitting enciphered data; and a reception terminal, including encipher reception means for receiving and deciphering enciphered data, the transmission terminal charging the reception terminal a fee that corresponds to an operation of the encipher transmission means
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