Research On Hybrid Authentication Scheme Based On Biometric Identification And Digital Signature

As a new type of identity authentication technology,biometric identification only needs to utilize the inherent biological characteristics of the human to carry out identity authentication,which brings convenience to people.However,there are many hidden dangers in biometric identification,such as the disclosure of biometric template,replay attack in the authentication process and so on.As a technology to ensure the source reliability and integrity of data,digital signature has been widely applied in the field of identity authentication,but it can not solve the security problem caused by the lack of connection between the key and the legitimate user.The combination of biometrics and digital signature can effectively make up for the shortcomings of both sides,which is of great significance.The hybrid authentication scheme based on biometrics and digital signature was mainly studied.The main research results are as follows:1.Based on the characteristics of digital signature and biometric identification technology,the biometric is bound with the key,and a hybrid authentication scheme based on biometric identification and digital signature is proposed.On the one hand,it increases the tolerance for the accuracy of biometric recognition algorithm,and effectively improves the accuracy of identity authentication;On the other hand,it effectively makes up for the shortcomings of both sides,improves the security of identity authentication,and has better expansibility and applicability.2.Based on the discrete logarithm problem,a new digital signature with message recovery is proposed.In terms of calculation performance,it has the characteristics of less communication and calculation,which improves the operation efficiency.In terms of security,it has the characteristics of anti tampering and anti forgery attack,which can be better applied in mixed authentication scenarios.3.Combined with the characteristics of less communication of signature with message recovery and convenient verification of fingerprint identification,a hybrid authentication protocol based on signature with message recovery and fingerprint recognition is constructed.Then,the protocol is simulated on the embedded platform.The results show that the protocol has high authentication accuracy,strong stability and security.