Fujitsu Corporation

Yasuharu Ito

Daisuke Shinomiya

Hidekazu Baba

Toshihiko Kaji

Hajime Kojima

An access control method for a network including a plurality of packet communication apparatuses is disclosed. The access control method includes a first step in which a sender packet communication apparatus attaches user attribute information to a packet to be transmitted, and a second step in which a communication control mechanism within an end system corresponding to a destination packet communication apparatus or a packet receiving apparatus performs access control based on the user attribute information attached to the packet.

Access control method, access control system, and packet communication apparatus

A witness system using EDI (electronic data interchange) to perform efficient distribution and account settlement processes between selling and buying companies. A buying company makes documents according to delivery or order vouchers, and electronically sends the documents to a selling company via a notarization authority. The selling company compares the authentication documents with delivery or order vouchers the selling company issued, and, after determining that the documents are correct executes a confirmation response to the notarization authority. The notarization authority registers the documents in the witness server's receipts detail table and notifies the buying and selling companies that the notarization authority authenticated the documents. This structure enables the making of accurate detailed payment statements when, for example, a detailed payment statement is made or a funds transfer is executed based on confirmed data. Furthermore, checking the detailed payment statement is made simpler through reference to the witness system server.

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Kawasaki, Japan

Yasuharu Ito