biometrics

Dan Geer geer at world.std.com
Wed Feb 6 00:16:09 EST 2002


    
>   In the article they repeat the recommendation that you never
>   use/register the same shared-secret in different domains ... for
>   every environment you are involved with ... you have to choose a
>   different shared-secret. One of the issues of biometrics as a
>   "shared-secret password" (as opposed to the interface between you
>   and your chipcard) is that you could very quickly run out of
>   different, unique body parts.

Compare and contrast, please, with the market's overwhelming
desire for single-sign-on (SSO).  Put differently, would the
actual emergence of an actual SSO signal a market failure by
the above analysis?

--dan


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