Hitoshi Kokumai

1 year ago · 2 min. reading time · ~10 ·

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Torturous login is history

Torturous login is history

Secret Credenti



Episodic Memory

The login can now be joyful, healing and heartening with Expanded Password System that enables us to use our pleasant episodic image memory that had been acquired decades ago and solidly inscribed deep in our brain.

Images of toys, dolls, dogs and cats, for example, that our children used to love for years would jump into our eye even when we are placed in heavy pressure and caught in severe panic. It never fails to brings us joy and comfort.  

Furthermore, Expanded Password System brings us such desirable merits as 

enabling us to manage dozens of different secret credentials effortlessly –https://www.linkedin.com/posts/hitoshikokumai_identity-authentication-password-activity-6794150779293982720-VZzH

reducing the burden of managing the correspondence between the accounts and the passwords – https://www.linkedin.com/posts/hitoshikokumai_identity-authentication-password-activity-6794149779996844032-LTU_

At our website, you can freely experience the on-the-fly re-generation of high-entropy text-passwords and cryptographic keys by Expanded Password System. https://www.mnemonicidentitysolutions.com/

“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


Key References 

Account Recovery with Expanded Password System

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

Relation of Accounts & Passwords


* Unique matrices of images allocated to different accounts.

+ Ata glance you will immediately realize what images you should pick
up as your passwords for this or that account.


Additional References

Removal of Passwords and Its Security Effect
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 


Ifonlytextand fare OK [SUV BIOKUW

to memonze
text/number passwords

{Text Mode)
Recall the remembered

J 2


<veco N=

Ox ma

XxXBFr mow



Low memory ceiling

to lighten the load of

text passwords


{Graphics Mode)
Recognize the pictures
remembered mn stones


High memory ceiling



to make use of
memorized images

{Ongimal Picture Mode)

Recognize the unforgettable
pictures of episodic memories

sRBO yr
L@ S00




Very high memory cuiding

— Think ofall those adders you have to climb in Donkey Kong 1+)


 < 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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