Fingerprint Biometric Template Automatic Calibration Algorithm Evaluation And Improvement Research

Nowadays,the transmissions of information are in various ways,also the speed is amazing,but the security vulnerabilities of the information transmission have become more and more complicated,the losses caused by the leakage of information make people pay more and more attention to information security.Biometric identification technology based on the biological characteristics of the user as recognition of information applications,once the information is stolen,it will be permanently.The biometric encryption technology to solve the above problems,the identity information and cryptology users are combined,do not keep the identity identification information true,but by a kind of encryption template after transformation,which will greatly protect the safety of bio logical characteristics,the identity in the process of storage and transmission even if the attack,the attacker will not get the true information of users,so to protect the security of user information But the characteristics of biometric encryption technology,resulting in the biometric template to verify the authenticity of the calibration to determine the authenticity of the increase,so the accuracy and speed are affected,resulting in the practicality is not high.Aiming at the above problems,based on the analysis and comparison of automatic calibration technology in the field of encryption,and improved calibration algorithm,Design fingerprint Fuzzy Vault system platform,realizes the biometric encryption technology application.The main work done in this paper is as follows:1.Improvement of calibration algorithm.Analysis of various calibration algorithm based on the relatively simple,for which a high precision algorithm,improves the accuracy of the algorithm,and the key parameters of the algorithm in several experiments analysis,the optimal values of the parameters,solve the problem behind the application of bio metric encryption technology.2.Build fingerprint Vault Fuzzy platform.Practical fingerprint Fuzzy Vault technology to realize ARM system board based on the overall framework,the system needs analysis,system hardware and software design,finally realize the in vivo acquisition,fingerprint biometric template real-time authentication encryption technology verification platform3.Analysis and experimental results of fingerprint Fuzzy Vault system.The first test verifies the feasibility of the system,and then based on the two part experiment,including the improvement of the accuracy of matching geometric hashing algorithm,and live fingerprint matching accuracy and time based on consumption,finally verified the practicability of the system.In summary,this research mainly focuses on the analysis of the biological characteristics of automatic calibration technology in the field of encryption,to ensure the safety of the biological characteristics of the premise,improve the matching accuracy,promote the practical application of biometric encryption,and biometric identification network has important significance in the future.