funsec mailing list archives
Re: Where's Waldo? (challenge)
From: "Dude VanWinkle" <dudevanwinkle () gmail com>
Date: Wed, 6 Jun 2007 15:15:49 -0400
On 6/6/07, sam stover <sam.stover () gmail com> wrote:
> what if you had a picture taken while holding both a cut-out of Waldo, > and today's paper in addition to the ransom note demanding 12 million > dollars for Waldo's safe return? Hahaha - that's the best post in this thread I've read yet... ;-) In fact, I'd go so far as to say that this post *validates* the whole thread - even if we don't find an answer.
What about the idea of taking digital copy of the Waldo picture and then using a warping algorithm that will distort waldo(but leave him recognizable) and then severely distort the rest of the image? The friend could find Waldo, enter in his coordinates to the warping app then generate the warping algorithm (that would not disclose the X or Y coordinates) and send it to his opponent. The opponent could then run the warping algorithm on his copy of the digital Where's Waldo exercise and validate the whole shebang. now all thats left is to code the warping app and develop the algorithm... .. that isnt part of the exercise is it? (O_o) -JP
-- S.f.Stover http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x15FFC42A _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
_______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
Current thread:
- Re: Where's Waldo? (challenge), (continued)
- Re: Where's Waldo? (challenge) Brian Loe (Jun 06)
- Re: Where's Waldo? (challenge) Valdis . Kletnieks (Jun 06)
- Re: Where's Waldo? (challenge) Brian Loe (Jun 06)
- Re: Where's Waldo? (challenge) Dude VanWinkle (Jun 06)
- Re: Where's Waldo? (challenge) Brian Loe (Jun 06)
- Re: Where's Waldo? (challenge) Valdis . Kletnieks (Jun 06)
- Re: Where's Waldo? (challenge) Dude VanWinkle (Jun 06)
- Re: Where's Waldo? (challenge) der Mouse (Jun 06)
- Re: Where's Waldo? (challenge) Dude VanWinkle (Jun 06)
- Re: Where's Waldo? (challenge) sam stover (Jun 06)
- Re: Where's Waldo? (challenge) Dude VanWinkle (Jun 06)
- RE: Where's Waldo? (challenge) David Harley (Jun 06)