At 6:46 PM +0200 4/8/07, Jochem Maas wrote:
just a few random thought on how to make it even more painful to
crack. random colored borders, random border width, slight changes in width/height, random pixel noise or varying colors, animated gifs (where does the arrow stop),
animated gifs (where does the red/pink/blue/green arrow point to),

make the letters random with regard to character and position [and make the letters generated images them selves]
that way know where the arrow is pointing is only half the solution.

or may rather take this technique and combine it with std captcha such that
you output an image with a stack of [freaky] letters in it and one of them
has an arrow pointing at it.

yadda yadda.

in theory it's all crackable - but somewhere along the line the problem becomes too hard to make it worth the effort to try (unless your securing Fort Knox or something)

My attempt here was only to show that a MD5 solution could become so vast that there would be no point in pursuing that avenue.

As for other ways to crack this, of course there ARE other easier ways.

Cheers,

tedd
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