0 刊行物 · 107 記事


Dystopia Comes with Comfort and Convenience

Hitoshi Kokumai · I take up this report today - “Facebook's metaverse plans labelled as 'dystopian' and 'a bad idea'” · https://www.bbc.com/news/technology-59154520 · I am not knowledgeable enough to be able to judge whether ‘Metaverse’ itself is a good or bad idea, but it is not hard for me to j ...


How Best to Bring Comfort to Cyber Criminals

Hitoshi Kokumai · Another topic for today is “Passwordless made simple with user empowerment” · https://www.securitymagazine.com/articles/96431-passwordless-made-simple-with-user-empowerment · Imagine a world where quantum computing has made a quantum leap and destroyed the public-key infrastruct ...


Larger Attack Surface on User’s Device

Hitoshi Kokumai · I today take up this The Register report - “Client-side content scanning as an unworkable, insecure disaster for democracy” · https://www.theregister.com/2021/10/15/clientside_side_scanning/ · Glancing over this worrying report, I found this paragraph especially eye-catching; “I ...


Truly Big Threat

Hitoshi Kokumai · The quantum computer held in a bad guy’s hand is indeed a big threat. So is the artificial intelligence that has gone out of control. · However, a yet bigger threat comes from the humans who are indifferent to the power and value of humans' volition and memory. · Worst would be ...


Password Manager or Expanded Password System

Hitoshi Kokumai · “Expanded Password System is no bad, but we do not need it. · We can rely on password managers that are protected by a single strong password. · Password predicament is already sort out by password managers”. This is what we often hear here and there. · Then, what if we come up ...


Dual Causes of Password Predicament

Hitoshi Kokumai · Our password headache may well be the consequence of these dual causes - · ‘Use of Impracticable Password’ and ‘Non-Use of Practicable Password’ · Everyone grumbles at the former, while few are well awake to the latter. · For more about the latter, you could refer to this post –“ ...


Quantum Computing and Identity Assurance

Hitoshi Kokumai · Bad guys, who have a quantum computer at hand, would still have to break the part of user authentication that is not dependent on the public-key scheme, prior to accessing the target data, in the normal environment where secret credentials play a big role; quite a few cryptograph ...


Graphs talk the nature of biometrics

Hitoshi Kokumai · Biometrics is 'probabilistic' by nature since it measures unpredictably variable body features of living animals in ever changing environments. · – FAR and FRR are not the variables that are independent from each other, but are dependent on each other · – the lower a FAR is, the ...


New Slide - Healthy Second Life of Legacy Password Systems

Hitoshi Kokumai · We’ve come up with a slide presentation for “Bring a healthy second life to your legacy password system” · “We do not have to replace or rebuild the existing text password systems for making use of episodic memory; images of our episodic memory can be turned into a high-entropy c ...


The Password cannot be an Enemy of People

Hitoshi Kokumai · Think Digital Partners, UK, published our observation - https://www.thinkdigitalpartners.com/news/2021/08/25/why-the-password-isnt-an-enemy-of-people/ · Discussed here are · “Password-less security is to cyber security what army-less defence is to national defence” · “Biometrics ...


Unbreakable Password: Theft-prone though Unbreakable

Hitoshi Kokumai · I take up this report today - “SBI suggests 8 ways in which you can create an unbreakable password” · https://www.livemint.com/money/personal-finance/sbi-suggests-8-ways-in-which-you-can-create-an-unbreakable-password-11629343136710.html · Such unbreakable passwords as suggested ...


UN Human Rights Committee on Biometrics

Hitoshi Kokumai · Today's topic is the announcement by UN Human Rights Committee that storing biometric data on identity cards violates privacy –https://www.ohchr.org/EN/NewsEvents/Pages/DisplayNews.aspx?NewsID=27329&LangID=E · This is another case that biometrics is viewed as conflicting with hum ...


Another Aspect of Biometrics

Hitoshi Kokumai · Today I take up this report “Europe makes the case to ban biometric surveillance” https://www.wired.co.uk/article/europe-ai-biometrics · A friend has directed me to this very intriguing news, which reads “the biometrics business is on a collision course with Europe’s leading data ...


Biometrics is to Password what Back door is to Front door

Hitoshi Kokumai · Let me try to make the relation of a biometrics and a default password clearer with the picture of a house with a front door of a deterministic password system, to which a back door of a probabilistic biometrics system was added as another entrance. · Residents are required to us ...


New Breed of BCI/BMI Coming in Sight

Hitoshi Kokumai · Expanded Password System that turns the torturous password login into history and brings us such desirable merits as enabling us · - to recognize and recall dozens of different secret credentials effortlessly · - to manage the correspondence between the accounts and the passwords ...


To be more secure or less secure, that is the question

Hitoshi Kokumai ·   · “Passwordless MFA solutions with biometrics launched by SecureAuth, LoginID”  https://www.biometricupdate.com/202105/passwordless-mfa-solutions-with-biometrics-launched-by-secureauth-loginid · However,  · Remove the password and we will see the security lowered. Add the biome ...


Episodic Memory and Blockchain

Hitoshi Kokumai · What blockchain technology aims to achieve was not new to us. It was in 2002 that we took on a project that Expanded Password System was incorporated in a private/public key scheme deployed in a decentralized P2P formation. We were not able to secure the further budget for comme ...


Blockchain not to blame

Hitoshi Kokumai · "Bitcoin is ‘disgusting and contrary to the interests of civilization’ says famed investor Charlie Munger"   https://www.theregister.com/2021/05/03/berkshire_hathaway_annual_meeting_tech_highlights/ · I don’t think that this report is the denial of blockchain and the like, althou ...


Defense against Persistent Threats by Expanded Password System

Hitoshi Kokumai · Episodic image memory, that enables us to re-generate high-entropy authentication codes and cryptographic keys, also helps us achieve such objectives as to · (1) prevent OTP token from getting compromised · (2) come up with very resilient 2-channe/factor authentication · (3) t ...


On-the-fly regeneration of cryptographic keys made feasible by our episodic memory

Hitoshi Kokumai · Expanded Password System, that provides ‘wide choice of secret credentials’ and enables us to intuitively manage ‘correspondence between accounts and passwords’, makes it easily practicable to get cryptographic keys re-generated on-the-fly from what we had firmly remembered as ep ...


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