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Is steganography a thing with real-world works of art? I know that with digital photos, it's simply a matter of interspersing the information in its bits, but I
by prophesi 7y ago
Is steganography a thing with real-world works of art? I know that with digital photos, it's simply a matter of interspersing the information in its bits, but I'm not sure how that would translate with an actual physical copy.
- Scoundreller 7y agoThat’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.
- thekyle 7y agoHow 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?
- icebraining 7y agoIf 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 https://en.wikipedia.org/wiki/Digital_video_fingerprinting
- owenmarshall 7y agoWhat a bummer we can’t do this with the computer encoding of a long but memorable phrase. Ah, were that the tech existed!
- Scoundreller 7y agoYou 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.