Importance

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Abstract

The present invention provides a fingerprint authentication unit and an authentication system which can use one apparatus having a fingerprint collation function to thereby manage and operate a plurality of types of apparatuses or applications. By the fingerprint authentication unit, fingerprint data of a plurality of fingers of the same person is registered and stored in an IC card section, so that a collation control section compares and collates fingerprint data detected by a fingerprint sensor with the registered fingerprint data at a requested collation level corresponding to a security level of the application and, when the user is authenticated, a common control section obtains from a FACCT a key necessary to access a file which stores therein data to be output corresponding to the contents of the application, which key is in turn decrypted with an encryption key of a MF at an IC Card CPU and used to authorize access to the file in order to the data in this file to the application.

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First Claim