Hitoshi Kokumai

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

Hitoshi blog
The first SANE report on passwordless hype

The first SANE report on passwordless hype

Distracted “A


Yesterday I posted this comment - "Remove the army and we will have a stronger national defense" 

I have now found this report, which is probably the first SANE article that I have ever come across on tech media about passwordless authentication - “Don't believe the passwordless hype”  https://internetofthingsagenda.techtarget.com/post/Dont-believe-the-passwordless-hype

I would have been happier if the writer had mentioned "the security of these accounts is really lower than that of the password due to the increased attack surface" instead of "This means that the security of these accounts is really only as good as the password".

As for the increased attack surface, please refer to “Negative Security Effect of Biometrics Deployed in Cyberspace” at https://www.linkedin.com/pulse/negative-security-effect-biometrics-deployed-hitoshi-kokumai/

For the true effect of removal of passwords, here is “Removal of Passwords and Its Security Effect” https://www.linkedin.com/pulse/removal-passwords-its-security-effect-hitoshi-kokumai/

Secret Credenti



Episodic Memory


Key References 

 “What we need to do for NOT achieving Solid Digital Identity”

Removal of Passwords and Its Security Effect 

Negative Security Effect of Biometrics Deployed in Cyberspace

External Body Features Viewed as ‘What We Are’




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 




 < 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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