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In recent years, with the rapid development of the e-commerce industry, more and more people have formed the habit of shopping on the Internet, and the most important thing to protect is the property and privacy security of users. In order to protect the legitimate rights and interests of users, almost all e-commerce platforms will choose to use the corresponding encryption technology to improve the security of websites. Encryption technology is the main security and confidentiality measure adopted by e-commerce and is the most commonly used security and confidentiality means. It uses technical means to transform important data into garbled code (encryption) for transmission and then uses the same or different means to restore (decrypt) after arriving at the destination. The application of encryption technology is multifaceted, but the most extensive application is in e-commerce and VPN, which is loved by the majority of users. “Intel and a slew of other hardware manufacturers are behind a wave of new devices designed to make encryption faster and more secure. These products are the latest evidence that encryption, essential for secure electronic commerce and communications via the Internet, is migrating from software-based technology to hardware-and the pace is picking up (Joachim, D. 1997)”.
E-business requires that customers can do many kinds of business activities on the Internet without worrying about their information being stolen. In the past, in order to prevent the number of the information from being stolen, users usually register some accounts with their information or ordered by phone and paid with their credit card. People began to use RSA (a public/private key) encryption technology to improve the security of information transactions, therefore, making it possible for e-business to become virtual.