E-commerce Trade Consumption Payment Security and Privacy Based on Improved B2C Model

With the popularity of the Internet and smart phones, ecommerce based on the Internet has rapidly developed by relying on its particular merits. However, the openness of the Internet makes payment security and privacy protection become the key of e-commerce development. This study gave a brief introduction of both traditional and improved Business to Customer (B2C) e-commerce and preformed the analogue simulation on shift left long (SLL) security protocol based on double encryption algorithm and traditional encryption algorithm under different sizes of data. The result showed that the double encryption algorithm could has lower complexity for encrypting and decrypting data, enabling to shorten the time of the encryption and decryption of the data; in terms of security, the decryption integrity of the data that was encrypted by double encryption algorithm was lower, and was basically garbled without logic. Thus, the security is guaranteed. In conclusion, the third-party privacy server in the improved B2C model can effectively guarantee the payment and privacy security of consumers.