15. 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 an imposter score distribution with results generated during said conducting step; determining whether a maximum imposter matching score is less than a minimum genuine matching score; and confirming an identity of an individual when the maximum imposter score is less than the minimum genuine matching score.
15. 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 an imposter score distribution with results generated during said conducting step; determining whether a maximum imposter matching score is less than a minimum genuine matching score; and confirming an identity of an individual when the maximum imposter score is less than the minimum genuine matching score. 16. A method in accordance with claim 15 , further comprising calculating an equal error rate when the minimum genuine matching score is equal to or less than the maximum imposter matching score.