Identity authentication method based on biological feature encryption and homomorphic algorithm

Abstract

An identity authentication method based on biometric encryption and homomorphic algorithm, which uses the user's biometrics as a password to log in to the system through a mobile device, which is faster than the usual password method, and the use of encrypted biometric templates is more secure, while information is transmitted The process is transmitted in the form of ciphertext, which ensures the privacy of the user; factors such as time stamps are added to enable three-party authentication between the user and the provider server and cloud computing server, which enhances the credibility of the three parties; The user performs the authorization operation based on the predicate encryption of the attribute and updates the permission information in real time, which can prevent legitimate users from illegally using resources in the cloud computing environment and better manage resources. The homomorphic algorithm can be used to operate without decryption, just as the effect of decryption first and then operation is the same, which saves time and space overhead, greatly improves the efficiency of the system, and has high security and efficiency.

Description

technical field [0001] The invention is an identity authentication scheme suitable for cloud computing environment, which mainly applies biometric encryption technology and homomorphic algorithm to the identity authentication system, and belongs to the technical field of computer network and information security. Background technique [0002] With the rapid development of the information network, the cloud computing environment is more and more favored by people due to its advantages of convenience and speed. How to protect system resources in an open cloud computing environment is particularly important. Designing a secure identity authentication system to prevent Illegal users' access to system resources and malicious attacks and intrusions by opponents have become a very important and urgent problem in the field of network security. [0003] Identity authentication refers to the process that the system confirms whether the user's identity is true, legal and unique when th...

AI Technical Summary

Problems solved by technology

[0007] (3) Access authority: Many identity authentication systems do not grant different permissions to different users, which easily leads to the problem of illegal access to system resources by legitimate users

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