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    • 5. 发明专利
    • DEVICE AND METHOD FOR OBTAINING AUTHENTICATION
    • JP2000299682A
    • 2000-10-24
    • JP10514399
    • 1999-04-13
    • MATSUSHITA ELECTRIC IND CO LTD
    • YAMAMURO KAGENARIOOASHI MASAHIROKUSUMI TAKENORIWAKE HIROYUKI
    • G06F12/14G06F21/24H04L9/08H04L9/32
    • PROBLEM TO BE SOLVED: To efficiently utilize a communication line by requesting the start of obtaining an authenticating document to an authentication station after preparing a pair of a public key and a secret key in advance of requesting the authenticating document to the authentication station. SOLUTION: At the time of receiving request for issuing an authenticating document from a keyboard being an inputting device and accepting a request for obtaining an authenticating document, an authenticating document issuing request processing part 4 instructs the preparation of a public key and a secret key to a public key and secret key preparing part 2. In addition, the part 4 obtains the public key and the secret key from a public key and secret key storing part 3. In addition, when the public key and the secret key are normally prepared, the part 4 requests the start of obtaining the authenticating document too an authentication station via a transmission and reception part 6. Then, the part 4 receives the report of starting obtaining of the authenticating document via the part 6 from the station 8 in response to this request for the start of obtaining the authenticating document. At the time of receiving a request for applying from an authenticating document obtaining device 1, this station 8 transmits the report of an application document to the device 1.