Distributed protocol for secure communication of commercial transactions and decentralized network employing the protocol

摘要

A protocol and system for securely communicating a financial transaction between a customer and a merchant and a distributed computer network employing the protocol or system. A central authority having a central authority private key K^s_ca assigns a customer account (“CACCT”) to the customer and a merchant account (“MACCT”) to the merchant. The customer has a customer public key K^p_c; the merchant has a merchant public key K_m. The protocol includes the steps of: (1) sending a quotation from the merchant to the customer, the quotation including the K^p_m, a K^s_ca-signed signature that is a function of the MACCT, an unsigned copy of a price and a K^s_m-signed signature that is a function of the MACCT and the price, (2) replying to the quotation by sending an order from the customer to the merchant, the order including the K^p_c, a K^s_ca, signed signature that is a function of the CACCT, an unsigned copy of the price and a K^s_c-signed signature that is a function of the CACCT, the MACCT and the price and (3) replying to the order by filling the order.