| 摘要 |
An electronic money usage system is capable of preventing dishonest use of electronic money recorded on a recording medium. A memory card 300 acquires signature-type electronic data from a bank server apparatus 100, and generates a first authenticator using the received first authenticator, and an identification flag, an electronic money ID and an amount included in the electronic money. When a user uses the signature-type electronic money, the memory card 300 generates a second authenticator with use of a second password received from the user, and the identification flag, electronic money ID and amount included in the electronic money. The memory card 300 outputs the electronic money if the first authenticator and the second authenticator match.
|
