| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic commerce server and the like capable of smoothly execuring the electronic commerce in safety by reducing the leakage of personal information and the like such as a credit card number and the like in the credit inquiry process when the settlement by the credit card and the like is executed on the network, and reducing the probability of the illegal use. SOLUTION: When this server 9 receives an encrypted unique number 101 and the like, it decrypts the encrypted unique number 101 and the like. In a case when the unique number 101 indicates an authorizable credit card in the server 9, the server 9 authorizes the same, and transmits a result of authorization to a computer 7. In a case when the unique number 101 indicates the unauthorizable credit card in the server 9, the server 9 transmits the decrypted unique number 101 and the like to a server 11, so that the server 11 specifies a server 13 of a company issuing the credit card, and transfers the decrypted unique number 101 and the like to the server 13, and further the server 13 authorizes the same, and transmits a result of the authorization to the computers 7, 9 through the server 11. |
