| 摘要 |
When a card holder who owns a payment card purchases merchandise from a seller via online communications through a network, he transmits order data relative to the purchase to the seller, that order data including parts relevant to respective ones of parties other than the card holder, e.g. the seller, a card manager, and a delivery service company, and which parts are encrypted by the terminal of the card holder using respective common cryptokeys which are effective only between the card holder and the respective other parties. The data is transmitted through the terminal of the seller to the terminals of the other parties. The other parties, on receipt of the transmitted data, decrypt that part of the data relevant to them using the relevant common cryptokeys. <IMAGE> |
