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A comment on A wall of lava lamps helps encrypt the internet. Parent comment

Re:A wall of lava lamps helps encrypt the internet by BurningFrog on Sunday December 31, 2017 @01:30PM (#16041884)
It looks quite simple and sane to me.

A big plus over the alternatives I see mentioned is that you can easily see if it's working right now.

What bothers me is that at least 80% of the wall is unrandomized wall and lampfeet.

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Re:A wall of lava lamps helps encrypt the internet by stouset on Sunday December 31, 2017 @05:16PM (#16043317)
Doesn’t matter. As a simplistic example, if you send the image through SHA-256 it doesn’t matter how many bits are predictable — as long as there are at least 256 bits of entropy in the image, the output will have those 256 bits of entropy smeared across the output evenly (barring breaks in the hash function itself).
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