Biometric authentication system
First Claim
Patent Images
1. A biometric authentication system configured to enable an authentication process, the process having predefined parameters associated therewith, the process providing for authentication of a user based on a comparison of a presented biometric with at least one previously stored biometric, said authentication system comprising:
- a matching system providing as an output an output matching score based on the comparison of the presented and the at least one previously stored biometric, said authentication system being configured to authenticate the user on determining that a parameter based on the output matching score meets a threshold score, wherein the output matching score results from a combination of multiple output matching scores, or values transformed from the combination of multiple output matching scores, when compared against a single threshold score; and
interrogation means configured to interrogate the authentication process so as to extract and use the predefined parameters to select an appropriate threshold score from a plurality of available threshold scores, each of the plurality of available threshold scores being previously generated for specific parameters.
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Abstract
A biometric authentication engine includes components which are configured to authenticate a user based on at least one presented biometric.The system makes use of multiple threshold parameters or scores so that the authentication process is better tailored to match the specifics of the authentication request.
60 Citations
32 Claims
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1. A biometric authentication system configured to enable an authentication process, the process having predefined parameters associated therewith, the process providing for authentication of a user based on a comparison of a presented biometric with at least one previously stored biometric, said authentication system comprising:
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a matching system providing as an output an output matching score based on the comparison of the presented and the at least one previously stored biometric, said authentication system being configured to authenticate the user on determining that a parameter based on the output matching score meets a threshold score, wherein the output matching score results from a combination of multiple output matching scores, or values transformed from the combination of multiple output matching scores, when compared against a single threshold score; and interrogation means configured to interrogate the authentication process so as to extract and use the predefined parameters to select an appropriate threshold score from a plurality of available threshold scores, each of the plurality of available threshold scores being previously generated for specific parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A distributed network of authentication systems, at least one of said authentication systems being configured to enable an authentication process, the process having predefined parameters associated therewith and providing for authentication of a user based on a comparison of a presented biometric with at least one previously stored biometric, said at least one authentication system comprising:
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a matching system providing as an output an output score based on the comparison of the presented biometric and the at least one previously stored biometric, said at least one authentication system being configured to authenticate the user on determining that a parameter based on the output score meets a threshold score; and interrogation means configured to interrogate the authentication process so as to extract and use the predefined parameters to select an appropriate threshold score from a plurality of available threshold scores, each of the plurality of available threshold scores being previously generated for specific parameters, wherein said network comprises at least one audit module configured to receive data relating to the authentication process from at least one of said authentication systems within said network, process the received data so as to provide an analysis of the performance of said at least one of said authentication systems using current threshold scores, and generate at least one revised threshold score to supplement the current threshold scores used at one or more of said authentication systems within said network. - View Dependent Claims (19, 20, 21)
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22. A method of authenticating a user based on a biometric sample presented by the user, said method comprising:
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receiving a request for authentication, the request for authentication including a presented biometric; analyzing specifics of the request so as to extract at least one parameter specific to the request; matching the presented biometric with a previously stored biometric for the user so as to provide a matching score; determining an appropriate threshold score from a plurality of available threshold scores by using a set of parameters specific to the request to ascertain which of a plurality of threshold tables is most appropriate for the set of parameters; extracting a threshold score from the appropriate threshold table, on selecting the appropriate threshold table; comparing the threshold score with the matching score; and authenticating the user on determining that the matching score exceeds the threshold score, wherein said method is performed using a computer. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification