| 摘要 |
PURPOSE: A system for a certification of contents using the Internet is provided to enhance a reliability by preventing a generation of various kinds of disputes in advance when contents of a postal matter are certified through the Internet. CONSTITUTION: A service supply server(100) analyzes a document transmitted from a sender terminal(200), creates contents-certified information thereof, transmits the created contents-certified information to the sender terminal(200), requests for inputting authentication units(identifier, password, fingerprint), stores the inputted authentication units and the contents-certified information, respectively, codes the contents-certified information using a public key of an authentication server(400), and transmits the information to the authentication server(400). The service supply server(100) transmits the created contents-certified information to the receiver terminal(300). The authentication server(400) decodes the coded contents-certified information using a private key and stores the information. If a contents-certified information transmission is requested from the service supply server(100), the authentication server(400) detects the stored contents-certified information and codes the information using a public key of the service supply server(100), and transmits the information to the service supply server(100). The service supply server(100) decodes the transmitted information using a private key and certifies the authentication units. If no error exists in a certifying result, the service supply server(100) transmits corresponding contents-certified information to the sender terminal(200).
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