Development of the protocol "electronic cash" with inspection correction rules of the electronic e-cash number for e-commerce systems

Abstract

The purpose of the research is to reduce the time to determine an intruder who tries to pay for a purchase with an electronic coin with a fake serial number by developing an algorithm which allows the seller to ensure that the buyer has correctly generated serial number Si for electronic note i, as well as number Ti, which is used in the equation of checking for double payment of an electronic note. Various cryptographic protocols are utilized in modern e-commerce systems. Among them, it is possible to highlight the protocols of "withdrawal", "single coin payment" "whole wallet payment", "double-payment check for the same coin". Most of these protocols are built on the evidence of absolute non-disclosure of information. However, known protocols for "single coin payment" only allow a seller to determine presence of the electronic signature of the bank that issued an electronic wallet for a customer. The check of correct generation of an electronic coin serial number will allow a seller to determine an intruder prior to making a sell. Therefore, the development of a "single coin payment" protocol with checks for correct generation of an electronic note serial number which does not allow an intruder to pay using an electronic coin with a fake serial number is a signicant task