A smart card registration and login method based on password and biometric feature

Abstract

The invention discloses a smart card registration and login method based on passwords and biometric features, including a registration step and a login step, wherein the registration step further includes sending the user identity, password, and biometric features to a registration center, and the registration center obtains the Password encryption value and biometric encryption value, and store it and encryption method in the smart card; The login step further includes that the smart card encrypts the identity information and password input by the user in the same way as above to obtain password verification information, if the password verification information is consistent with the password If the encrypted value is the same, the password is correct. The smart card further reads the biometric feature input by the user to be verified, and restores the biometric feature at the time of registration according to the password and the encrypted value of the biometric feature, and then verifies the matching degree of the two. If it is greater than the set threshold, the login is successful. The present invention can more effectively resist various known attacks, and ensures that only the user himself can log in to the system.

Description

technical field [0001] The invention relates to the fields of information security and network technology, in particular to an identity authentication method based on passwords and biometric features. Background technique [0002] The rapid development of network communication technology has made more and more people accustomed to using the services provided by the network, such as e-commerce, e-government, electronic logistics and so on. Before users log in to the system to obtain services, they must first verify the legitimacy of their identity to prevent illegal login. [0003] In recent years, many authentication methods have emerged. In 2011, Cheng-ChiLee et al. proposed a remote user authentication method. In 2012, Cheng-ChiLee et al. proposed an improved remote user login method. In the same year, Chun-TaLi et al. also proposed a user identity authentication based on passwords and smart cards. mechanism. The above studies are all based on passwords and smart cards....

AI Technical Summary

Problems solved by technology

These studies have introduced biometrics. After registration, the biometrics will be hashed and compared with the hash value of the user’s input biometrics during verification. However, due to the randomness of biometrics collection and the characteristics of hashing, In practical applications, this kind of verification is almost impossible to achieve

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