Hitoshi Kokumai

2 years ago · 2 min. reading time · ~10 ·

Hitoshi blog
Advantage of Biometrics Security to Criminals

Advantage of Biometrics Security to Criminals

FRR (False Rejection Rages)


False Acceptance Rates and False Rejection Rates






38 (Equa ror Rates)

(more accurate)



00 100 ar 100 10
FAR (Fale Accegtarce Rates)

Taken up today is this TechRepublic report on voice print as a new password - https://www.techrepublic.com/article/your-voiceprint-could-be-your-new-password-as-companies-look-to-increase-security-for-remote-workers/

Instead of “Your voiceprint could be your new password as companies look to increase security for remote workers”, I would have mentioned as follows.

“Your voiceprint could be your second password as the second entrance for bringing down security as companies look to increase security for remote workers”

Biometrics does indeed provide security advantage,

not to good citizens,

but to bad guys 

as examined here - "Get graphs to talk the nature of probabilistic biometrics” 

Worry about a backdoor?

Key References 

Biometrics is to Password what Back door is to Front door

Removal of Passwords and Its Security Effect 

Negative Security Effect of Biometrics Deployed in Cyberspace

External Body Features Viewed as ‘What We Are’

“Expanded Password System

wane = Only I can select all of
BS] them correctly

Broader choices with both images and characters accepted






Easy to manage relenons between accounts and corresponding passwords.


Torturous login is history. Login is now comfortable, relaxing and healing


Additional References

For Achieving Solid Digital Identity on Information Security Buzz (Mar/2021)

What We Know for Certain about Authentication Factors

Digital Identity for Global Citizens
 Image-to-Code Conversion by Expanded Password System

Summary and Brief History - Expanded Password System

Proposition on How to Build Sustainable Digital Identity Platform

Account Recovery with Expanded Password System 

 History, Current Status and Future Scenarios of Expanded Password System 

Availability-First Approach 

Update: Questions and Answers - Expanded Password System and Related Issues 


BOP v6
mec Ne

gr |ar

Generating High-
Entropy Password like



 < Videos on YouTube>

Slide: Outline of Expanded Password System (3minutes 2seconds)

Digital Identity for Global Citizens (10minutes - narrated)

Demo: Simplified Operation on Smartphone for consumers (1m41s)

Demo: High-Security Operation on PC for managers (4m28s)

Demo: Simple capture and registration of pictures by users (1m26s)

Slide: Biometrics in Cyber Space - "below-one" factor authentication




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