Re: Where's Waldo? (challenge)

["Brian Loe" <knobdy () gmail com>]

It seems we could have solved the problems in the Middle East already
with this much energy, but wouldn't it be just as easy to tell your
friend that Waldo is such-and-so-many inches right, down, left, up
from a particular character in the picture. Once your friend finds
Waldo he can point at him and ask you the reference point, counting
the inches you gave back he should find your reference point to prove
you had found Waldo first.

Too easy? Seems sufficient.

On 6/5/07, sam stover <sam.stover () gmail com> wrote:

> Hm, but no.  The problem as stated was:
>
> This is an interesting excersize (sic) in security, to quote:
>
>     "A friend of mine gave me a riddle this morning regarding "Where's
>     Waldo?". The riddle is as follows:
>
>     You and a *friend* play "Where's Waldo?". You solve the puzzle before
>     your *friend*, and you want to prove to your *friend* you solved the
>     puzzle, without giving him any hints. How do you do this?"
>
> Zero knowledge? Geographic descriptions? Riddles? Hashes?
> How do you let your *friend* know that you solved it, without helping out?
>
> (*emphasis* is mine)
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