Research on Connectionless Identity Authentication Method Based on National Cryptographic Algorithm

The conventional methods of identity authentication, such as passwords, tokens, and biometric features, typically necessitate users to establish an electromagnetic connection with the server during the authentication process. In order to effectively avoid the security risk of authentication information being attacked and intercepted in traditional authentication schemes, the article designs a connectionless identity authentication scheme based on the national cryptographic algorithm. In the absence of electromagnetic connection between the authentication party and the user, user identity authentication is completed through the coordination of QR code and national cryptographic algorithm. The article scheme has the characteristics of high security, simple principle, and low investment. Compared to traditional identity authentication schemes, it has more advantages in application scenarios such as information system login verification and non-contact access control.