Smart city-based e-commerce security technology with improvement of SET network protocol

摘要

In this paper, we proposed an improvement of SET protocol for E-commerce transaction. We study the security technology and protocol flow of set protocol, and point out the shortcomings of SET protocol. Due to the lack of security and low scalability of the current protocol, this paper proposes a server e-wallet strategy, which divides the original client into e-wallet client and e-wallet server, and enhances the convenience and security of the transaction by transferring the client to the issuer or the third-party financial institution, while the scalability is stronger. In order to ensure the atomicity of goods and confirm the atomicity of delivery, this paper proposes a secure e-commerce payment protocol based on the fourth party, which includes master protocol, customer return protocol, customer exchange protocol and customer merchant transaction dispute resolution protocol. According to the efficiency of SET protocol, a security hierarchical control model is proposed, which can select different security levels to operate according to the actual needs of customers, and the principle and implementation of the model are analyzed.