초록 ▼

A network-based sales system includes at least one buyer computer for operation by a user desiring to buy a product, at least one merchant computer, and at least one payment computer. The buyer computer, the merchant computer, and the payment computer are interconnected by a computer network. The bu

A network-based sales system includes at least one buyer computer for operation by a user desiring to buy a product, at least one merchant computer, and at least one payment computer. The buyer computer, the merchant computer, and the payment computer are interconnected by a computer network. The buyer computer is programmed to receive a user request for purchasing a product, and to cause a payment message to be sent to the payment computer that comprises a product identifier identifying the product. The payment computer is programmed to receive the payment message, to cause an access message to be created that comprises the product identifier and an access message authenticator based on a cryptographic key, and to cause the access message to be sent to the merchant computer. The merchant computer is programmed to receive the access message, to verify the access message authenticator to ensure that the access message authenticator was created using the cryptographic key, and to cause the product to be sent to the user desiring to buy the product.

대표청구항 ▼

[ What is claimed is:] [1.] A network-based sales system, comprising:a merchant database comprising a plurality of digital advertisements and a plurality of respective product fulfillment items;at least one creation computer for creating said merchant database; andat least one merchant computer for

[ What is claimed is:] [1.] A network-based sales system, comprising:a merchant database comprising a plurality of digital advertisements and a plurality of respective product fulfillment items;at least one creation computer for creating said merchant database; andat least one merchant computer for causing said digital advertisements to be transmitted to a user and for causing advertised products to be transmitted to said user;said creation computers, said merchant computer, and a payment computer being interconnected by a public packet switched computer network;said creation computer being programmed to create said merchant database, and to transmit said digital advertisements and said product fulfillment items over said network to said merchant computer;said merchant computer being programmed to receive said digital advertisements and product fulfillment items over said network, to receive over said network a request for a digital advertisement from a user, to cause said digital advertisement to be sent to said user over said network, to receive over said network from said user a product request message identifying an advertised product, to receive an access message over said network created by said payment computer, and to cause said product to be sent to said user in accordance with a product fulfillment item corresponding to said product and based upon receipt by the merchant computer of the access message.