ELECTRONIC SETTLING METHOD AND ITS SYSTEM

摘要

PROBLEM TO BE SOLVED: To enable specifying a problem place when the unmatch of settlement occurs byissuing a certificate where an electronic signature is executed in the respective stages of a processing. SOLUTION: A purchaser transmits a merchandise to purchase to a store (1). The store transmits a written estimate with a store signature to the purchaser (2). The purchaser recognizes the signature and a price and transmits the written estimate and authenticating information to a settlement server (3). The server issues an exchange certificate with a server signature after the authentication of the purchase and the recognition of the store (4). The purchaser transfers the exchange certificate to the store (5). The store recognizes the signature of the server and a face value, transmits an exchange certificate receipt with the store signature to the purchaser (6), the merchandise is dispatched and a demand is transmitted to the server (7). The server transmits a payment acknowledgement certificate with the server signature to the store (8) and executes actual settlement.