CONFIRMATION SERVER, TRANSACTION TERMINAL, PROGRAM, TRANSACTION SYSTEM, AND PERSONAL IDENTIFICATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technology for allowing personal identification and transaction to be performed even with a device which is not connected to the device which stores personal information.

SOLUTION: A confirmation server 110 generates a succession number adding a personal identification number to a hash value calculated by inputting to a hash function original data having a personal identification number calculated so that it may become uniform every time the personal identification information is acquired by a reception terminal 120 and a confirmation key acquired from the reception terminal 120, and provides the user who performs transaction with it. At an ATM 140 or a counter terminal 150, the succession number and the confirmation key are provided by the user, a hash value is calculated from the original data having the personal identification number included in the succession number and the provided confirmation key to judge whether or not the value matches the hash value included in the succession number.

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