Abstract:
It is the object of the present invention to provide a safe and an efficient charge method and system wherefore procedures for purchasing a product across a network are simplified. According to the present invention, provided are a safe and an efficient charge method and system wherefore the procedures for purchasing a product across a network are simplified. A charge server receives access requests from a customer; identifies the customer; identifies the contents owner for which access is requested and ascertains the location and the price of the contents, and the destination for the contents for reckoning a sale; accesses the contents rather than the customer who issued the access requests; transmits, from the contents server to the customer, the contents that have been transferred from a contents server to the charge server; and subtracts the price of the contents from customer information held by the charge server and adds the price for the contents to information at the destination for reckoning a sale.
Abstract:
PROBLEM TO BE SOLVED: To reduce the communication number of a resource managing system by distributed servers by requesting the transmission of resources to at least, one servers among plural servers to gather the resources to transmit in the case that resources more than a requested one do not exist in a home server. SOLUTION: The system optimizes the number of transmission between the plural servers. Namely, it is first judged whether all the servers to which money has been transferred before are inspected or not (S420). In the case of judging that all of them are not inspected, increment is executed and a transmitting request is sent to a server of an i-numbered largest remainder in a remainder written estimate (S430, S440). Then, an answer from a server is waited (S450). When the answer comes from the server, the remainder of the i-numbered server of the remainder written estimate is updated to be a sent transmission amount (S460). The reason is that as the server sends a half of the possessed money of the server to a home server, the same amount is left on a sending side. Then, whether the money amount was sufficient is judged (S470) and when it is sufficient, the processing is finished.
Abstract:
PROBLEM TO BE SOLVED: To obtain the system that is able to decode encryption data only when a decoding condition is satisfied by adopting the method where a user B requests issue of a time key certificate including disclosure time information to a time key certificate management device, the user B sends data encrypted by the acquired encryption public key to a user A, and the user A that requests a decoding key can acquire the decoding key only when the decoding condition is satisfied. SOLUTION: An information user requests service of information to an information server. The information server receiving the request of the information service from the information user requests provision of a time key certificate including encryption public key KEt to a time key certificate management device. The time key certificate management device sends G time key certificate including the encryption public key KEt the information server. The information user requests a decoding key to the time key certificate management device, receives the decoding key sent after a disclosure time, decodes the encrypted information M by using the decoding key to obtain the object information M.
Abstract:
PROBLEM TO BE SOLVED: To provide the safe and efficient charging method and system simplified in the procedure for purchasing articles on a network. SOLUTION: This charging server which acts for a customer's access request and receives a request to purchase contents on the network receives a request for contents from a customer at a request to access the contents, specifies who the customer is and the owner of the contents requested to be accessed, the resource locator, the price, and the sale working destination, and accesses the contents instead of the customer having made the access request. Then the server sends the contents sent from the content server to the charging server to the customer, subtracts the price from the customer information in the charging server, and increase information on the sale working destination by the price.