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

Peter Gutmann pgut001 at cs.auckland.ac.nz
Sun Oct 26 16:57:13 EDT 2014

dan at geer.org writes:

>Along similar lines, small noise in image acquisition is now well enough
>understood and discernible to say "This camera did take that picture" as it
>does to say "This rifle did fire that bullet," which extends to "These two
>pictures/bullets came from the same camera/rifle."

There is, however, an ongoing battle between the device manufacturers and
people who use these artefacts, since the manufacturers see them as flaws and
try and eliminate them once they're pointed out.  This makes it really
annoying for people who use them for image-source authentication purposes.


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