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A comment on Police seize cryptocurrency from alleged movie pirate. Parent comment

Re:Police seize cryptocurrency from alleged movie pirate by Scoundreller on Friday November 22, 2019 @04:25PM (#21610239)
That’s only a problem when you need to encode a pre-determined piece of data.

You could use an existing piece of art as your entropy to generate your own private key.

Would it be random enough? Who knows, but even 0x0000000000000 could be a random number.

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Re:Police seize cryptocurrency from alleged movie pirate by thekyle on Friday November 22, 2019 @05:46PM (#21610926)
How would that work? Take a picture of the picture and hash it? Wouldn't that just make the picture you took the source of entropy not the physical one?
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Re:Police seize cryptocurrency from alleged movie pirate by Scoundreller on Friday November 22, 2019 @07:30PM (#21611543)
You might have something in the image that you could interpret as 1s and 0s. Say, heights of trees in a line. If the next one is bigger, 1, if it's smaller, 0, etc.
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Re:Police seize cryptocurrency from alleged movie pirate by icebraining on Friday November 22, 2019 @07:19PM (#21611481)
If you can reliably produce the same hash from the painting over and over again[1], you can use the painting as the source, and throw away the picture.

[1] https://en.wikipedia.org/wiki/Digital_video_fingerprinting

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Re:Police seize cryptocurrency from alleged movie pirate by owenmarshall on Friday November 22, 2019 @09:51PM (#21612112)
What a bummer we can’t do this with the computer encoding of a long but memorable phrase. Ah, were that the tech existed!
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