The report of the 20th National Congress of the Communist Party of China proposed to accelerate the construction of a network power and a digital China. Promoting the application of electronic ID cards and licenses is an important measure to build a digital China and improve government service capabilities. In recent years, in order to improve the service level for the convenience of the people, various industries all over the country have vigorously promoted the application of electronic ID cards in various scenarios such as finance, education, medical care, social security and taxation, bringing more convenient digital life to the masses. "It is required to show your identity information when handling business. Unexpectedly, you can use your mobile phone to directly 'show your ID card', which saves the trouble of carrying your physical ID card. It is very convenient!" Ms. Sun, who came to Wuchang District Government Affairs Service Center in Wuhan City, Hubei Province to handle business, was surprised. "Promoting the application of electronic ID cards and licenses is an important measure to build a digital China and improve the ability of government services and the level of service for the convenience of the people." Zhu Wei, deputy director of the Communication Law Research Center of China University of Political Science and Law, said that under the protection of relevant laws in China, the healthy development of electronic ID cards has greatly reduced the burden on the masses to handle various businesses, and truly "let more data run away and less people run errands". With the continuous popularization of information technology and the rapid development of digital economy, "taking only one mobile phone when going out" has become a living habit of more and more people. In recent years, various industries around the country have vigorously promoted online authentication of ID cards, which can be achieved through mobile phone authorization and other operations. It has become a vivid epitome of efforts to solve the key "small things" around the people and better realize the "release, management and service". The information was encrypted layer by layer, and the use of records left traces throughout the whole process. The sun was bright and the breeze was warm. Mr. Hu and his girlfriend came to Lixia District Civil Affairs Bureau in Jinan, Shandong Province to register for marriage. They took out their mobile phones to show their "electronic ID cards" to the staff. After checking their identities, they successfully completed the formalities. In Shandong, after residents registered on the "Love Shandong" APP or the "Shandong WePolicing" WeChat official account and passed the real name and real person credibility authentication, they immediately generated an electronic certificate with the same content and functions as the legal identity certificate, which can be opened by logging in with their mobile phones. "The 'electronic ID card' includes the face information of the ID card, certificate documents, ID code and other contents, which are mutually recognized and shared across the province. It has the functions of identity verification, document call, certificate verification and so on." Chen Aiguo, deputy chief of the Public Security Police Corps of Shandong Provincial Public Security Department, introduced that the electronic ID card is essentially the construction of the network identity authentication system. In addition to the use of "bright card", When handling marriage registration, business license, passport, Hong Kong, Macao and Taiwan pass and other businesses for the masses, the government departments can directly connect with the electronic license system and call the license documents for filing, without the need for the masses to provide the original, scanned or copied ID cards. Identity card information involves citizens' personal privacy. How can we ensure that it is safe, authentic and reliable? "From a legal point of view, when implementing electronic identity cards, relevant departments that store and use electronic identity cards to carry citizens' personal information need to assume the responsibility for personal information protection under the Personal Information Protection Law and the responsibility for data processors under the Data Security Law. Important data processors who meet the legal requirements should also strengthen the protection of important data in accordance with the Data Security Law." China Social Science