[Cryptography] Best internet crypto clock: hmmmmm...

Peter Gutmann pgut001 at cs.auckland.ac.nz
Mon Oct 27 14:19:38 EDT 2014


Jerry Leichter <leichter at lrw.com> writes:

>All of these things have fundamental limits set by human sensory
>capabilities.  Most of our digital technologies are near those limits - most
>obviously in high-resolution LCD displays (what Apple calls "Retina"
>displays).  Sure, under some circumstances, some well-trained observers can
>easily spot the remaining variations.  But it's getting harder every day, and
>soon only the "golden ears" (and their analogues in different spheres) will
>even claim to be able to tell, and they'll consistently fail careful tests.
>
>Once you get to that point, there's no reason to go further in controlling
>manufacturing processes and such. 

That only applies if the final consumer of the image is a human being.  In
this case it's not human eyeballs that the image is intended for, and the
sensor manufacturers aren't optimising for that target.

Peter.


More information about the cryptography mailing list