Biometric authentication is remarkable with respect to identification of legitimate users. Biometric authentication is hopeful of services on the internet as reinforcement for conventional authentication such as ID and password, however, biometric information –acquisition raw data and template data– is unrenewable even though the data is compromised. We propose a framework of online biometric authentication with verification of validity of user's personal repository based on PKI. In this framework, information of biometrics authentication (certificate of templates) is related to not information of ownership but personal repository. This framework achieves anonymity during biometric authentication process by verifying validity of the user's personal repository.
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