Methods and systems of authentication

A system for conducting authentication matching transactions comprising:

• an authentication system including an authentication database, said authentication system being configured to communicate with devices and to store within said database authentication data for a plurality of individuals, matching scores, and matching score distributions;
• and
• a device configured to communicate with at least said authentication system and to capture biometric data positioned freely with respect to said device, said authentication system being further configured to
• generate an authentication biometric template from captured biometric data,
• conduct matching transactions between the authentication biometric template and enrollment biometric templates stored therein, and between the authentication biometric template and imposter biometric templates stored therein,
• generate a genuine matching score distribution and an imposter matching score distribution, and calculate a maximum genuine matching score and a minimum imposter matching score, and
• confirm an identity of an individual associated with the captured biometric data when the minimum imposter matching score is greater than the maximum genuine matching score.

A method of authentication comprising:

• conducting matching transactions between an authentication biometric template and enrollment biometric templates and between the authentication biometric template and imposter biometric templates with a biometric authentication system;
• updating a matching score distribution and a imposter score distribution with results generated during said conducting step;
• determining whether a minimum imposter matching score is greater than a maximum genuine matching score;
• and
• confirming an identity of an individual when the minimum imposter score is greater than the maximum genuine matching score.