Multisystem biometric token

摘要

An apparatus and a method for generating a unique user identification code for a user of a biometric security system are presented. No biometric information is stored either within the security system or on a device, and the method enables a unique user identification code to be generated to allow multi-system identification of the same user.;The method includes receiving a public key from the system, obtaining a characteristic from the user, generating a biometric value from the characteristic, creating the identification code by combining and encrypting the generated biometric value and the system supplied public key, and transmitting the identification code to the system for authentication.

主权项

1. A method for generating a unique user identification code for a user of a biometric security system, comprising:
initially storing the unique user identification code of the user in a database of the biometric security system for later use in authenticating the user; the user presenting a portable device to the biometric security system; the portable device receiving a public key from the system; the portable device obtaining a characteristic from the user; the portable device generating a biometric value from the characteristic; the portable device creating a putative duplicate of the identification code by combining and encrypting the biometric value and the public key; and the portable device transmitting the putative duplicate of the identification code to the system, wherein none of the obtained characteristic, the generated biometric value, any previously received characteristic corresponding the obtained characteristic or any biometric value generated from any previously received characteristic of the user is stored by itself either within the security system or on the portable device.