Graphs talk the nature of biometrics
Biometrics is 'probabilistic' by nature since it measures unpredictably variable body features of living animals in ever changing environments.
– FAR and FRR are not the variables that are independent from each other, but are dependent on each other
– the lower a FAR is, the higher the corresponding FRR is. The lower a FRR, the higher the corresponding FAR.
--when a FAR is close to 0 (zero), the corresponding FRR remains close to 1 (one). When an FRR is close to 0 (zero), the corresponding FAR remains close to 1 (one).
– The presence of False Rejection, however close to 0 (zero), would require a fallback means against the False Rejection.
As for the consequences of being dependent on fallback measures, please refer to “Biometrics is to Password what Back door is to Front door”
Incidentally, the public should have learned the above from biometrics vendors and security professionals who tout biometrics, before hearing from us.
For Achieving Solid Digital Identity on Information Security Buzz (Mar/2021)
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