Can we afford to disregard the potential of ‘Non-Text’ secret credentials?

Hitoshi Kokumai
2 min readApr 4, 2021


“Passwords are bad for business, frustrating for consumers” is what is claimed in this report

“Passwords are not secure enough, therefore passwords are bad. Bad passwords should be removed from identity security”. People who tell us so are suggesting us to rely on other authenticators that, by the way, need to rely on the bad passwords for not losing availability.

Should they really want to do without ‘bad passwords’, they could find only one choice — Find ‘good passwords”, say, ‘Non-Text’ secret credentials.

Ref: “What We Know for Certain about Authentication Factors”

Key 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

Additional References

Negative Security Effect of Biometrics Deployed in Cyberspace

Account Recovery with Expanded Password System

External Body Features Viewed as ‘What We Are’

History, Current Status and Future Scenarios of Expanded Password System

Negative Security Effect of Biometrics Deployed in Cyberspace

Removal of Passwords and Its Security Effect

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



Hitoshi Kokumai

Advocate of ‘Identity Assurance by Our Own Volition and Memory’, Inventor of Expanded Password System and Founder of Mnemonic Identity Solutions Limited in UK.