| 摘要 |
A customer computer (12), vendor computer (16) and verification computer (14) are interconnected by means of a network (18), such as the internet. The customer (12) can initiate a transaction, such as the purchase of information from the vendor (16), However, the vendor (16) will not proceed until verification of the transaction has been received from the site (14). This is not provided until the customer (12) has sent a unique fingerprint of data to the site (14), identifying the customer machine by reference to hardware device types or serial numbers, software types or licences, e-mail addressed or the like. This fingerprint is stored for future reference in showing that the transaction was validly implemented by the customer machine (12). |
