Reply to post: Re: Hash?

Facebook's send-us-your-nudes service is coming to UK, America

Flakk Silver badge

Re: Hash?

So, the sender edits the image, and tweaks the value of one pixel off in the corner, and now the hash is completely different, which completely defeats the system.

To satisfy my curiosity, I succeeded in changing the hash value of an image I downloaded from a website merely by opening and then saving it with an image editor. I didn't have to modify any pixels at all.

This whole proposition seems like a bizarre social experiment dreamed up by Facebook's BOFH to determine the depth of the userbase's "Peak Stupidity".

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