Starting from July 1st, the newly revised "Regulations on the Administration of Commercial Passwords" will officially come into effect. With the acceleration of the digital process, commercial passwords have been applied in all aspects of people's lives, providing security guarantees for everyone. What is a password? According to the provisions of the Password Law of the China, passwords refer to technologies, products and services that use specific transformation methods to encrypt, protect, and authenticate information. For example, Xiao Zhang invited Xiao Wang to a cafeteria for dinner, but he didn't want others to know. They agreed to use "0" to represent Xiao Zhang, "1" to represent Xiao Wang, "7" to represent the cafeteria, "9" to eat, and "0179" to represent the meaning of "Xiao Zhang invited Xiao Wang to a cafeteria for dinner". In this process, the substitution between numbers and semantics is the most primitive form of "password". We often see the plot of transmitting intelligence through methods such as the Morse code in spy movies and TV dramas, which is actually an application of passwords. In daily life, what we often refer to as mobile phone passwords and bank card passwords should actually be referred to as "passwords", which are simple authentication methods and not strictly "passwords". So what does a commercial password refer to? According to the provisions of the Password Law of the China, passwords are divided into core passwords, ordinary passwords and commercial passwords. Core passwords and ordinary passwords are used to protect state secret information, which are also state secrets. They are mainly used for some major activities of the party and the state, or emergencies such as rescue and disaster relief. Commercial passwords are used to protect information that is not a state secret and are closely related to the lives of the people. They are widely used in various fields of national economic development and social production and life, such as finance, communication, public security, taxation, etc. The Commercial Password Management Regulations are the national administrative regulations that regulate the application and management of such passwords. Li Guohai, Director of the Commercial Password Management Office of the National Password Administration, said that the "Regulations on the Administration of Commercial Passwords" were first formulated in 1999. With the development of the times, the role of commercial passwords in safeguarding national sovereignty, security, and development interests, as well as safeguarding network and information security, has become increasingly prominent. The original regulations can no longer adapt well to the current new situation and tasks. According to the Password Law of the China implemented in 2020, the Regulations on the Administration of Commercial Passwords have been revised to better regulate the application and management of commercial passwords and give play to the core role of commercial passwords in protecting network and information security. Commercial passwords protect the security of people's data. Commercial passwords cover many areas of people's lives, such as commonly used mobile payments, e-government, etc., which use commercial password technology to ensure the security of people's data. The main function of the password is encryption protection and security authentication. It has the characteristics of Tamper resistance and non repudiation, and has a strong ability to protect data. The newly revised "Regulations on the Administration of Commercial Passwords" stipulate that "the state supports the use of commercial passwords in network products and services to enhance security, and supports and standardizes the application of commercial passwords in new technologies, formats, and models in the information field. Starting from October 2020, China's newly issued financial IC cards, which are commonly used chip bank cards