What doesn’t exist won’t leak, will it

Hitoshi Kokumai
3 min readDec 31, 2021

I would like to take up this topic today —” LastPass says no passwords were compromised following breach scare” https://www.theverge.com/2021/12/28/22857485/lastpass-compromised-breach-scare

While we don’t know whether or not the credentials have actually leaked in this case, we do know that users of conventional password managers cannot escape an anxiety that their precious passwords could leak, and a single point of failure that often comes with the use of password management could wreak havoc.

Hence our proposition of ‘leak-proof’ password manager powered by Expanded Password System — “Password Manager or Expanded Password System”

and “Maximizing Entropy of Secret Credentials while Minimizing Burden on Citizens”

Key References

Bring a healthy second life to legacy password systems

Quantum Computing and Password Authentication
https://aitechtrend.com/quantum-computing-and-password-authentication/ (published by NY-based aiTech Trend)

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

Additional References

Removal of Passwords and Its Security Effect

Step-by-Step Analysis of Why and How Biometrics Brings Down Security

Negative Security Effect of Biometrics Deployed in Cyberspace

External Body Features Viewed as ‘What We Are’

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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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.