2015/05/28

Password On Media #17

Below are some of the latest media articles about password problems and my comments on them.

- Authentication Advances May Finally Kill Passwords and PINs
“banks are finally replacing old and not-so-reliable methods of authenticating customers —
passwords and security questions — with sophisticated alternatives.”

My comment:  In a world where we live without passwords or PINs, say, where our identity is
established without our volitional participation, we would be able to have a safe sleep only
when we are alone in a firmly locked room.  Is this what we want?

Posted below relating to this topic is a slide “Death to Password?”


- NTT DoCoMo offering password replacement on some services
“NTT DoCoMo said it plans to be the first mobile operator to integrate online services and smartphones that support biometric authentication based on protocols developed by the FIDO Alliance.”

My comment:  FIDO is sadly promoting biometrics in a wrong manner.

Biometric authentication could be a candidate for displacing the password if/when (only if/when)
it has stopped depending on a password to be registered in case of false rejection while keeping
the near-zero false acceptance.

We could be certain that biometrics would help for better security only when it is operated together with another factor by AND/Conjunction (we need to go through both of the two), not when operated with another factor by OR/Disjunction (we need only to go through either one of the two) as in the cases of Touch ID and many other biometric products on the market that require a backup/fallback password, which only increase the convenience by bringing down the security.

In short, biometric solutions could be recommended to the people who want convenience but
should not be recommended to those who need security.  Below is a brief slide titled “Password-Dependent Password-Killer” posted with respect to this theme.


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