[cryptography] CAPTCHA as a Security System?

Nico Williams nico at cryptonector.com
Mon Jan 2 22:26:13 EST 2012


On Mon, Jan 2, 2012 at 9:08 PM, John Levine <johnl at iecc.com> wrote:
>   [...].  One of the advantages of having a working legal system is so
> that we can live reasonable lives with $20 locks in our doors, rather
> than all having to spend thousands to armor all the doors and windows,
> like they do in some other parts of the world.

Indeed!  I'm not sure that this translates so well to online security
though, where one must defend against attackers that the law can't
reach.  You make a good case that it does translate well to the
Ticketmaster case though.

Nico
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