Can one use steganography to ID - Democratic Underground

alfredo

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Wed Feb-23-05 03:49 PM
Original message

Can one use steganography to ID

online photos? It seems as though it could be used to settle claims of ownership.

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TahitiNut

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Wed Feb-23-05 06:37 PM
Response to Original message

1. Yep.

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alfredo

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Wed Feb-23-05 10:22 PM
Response to Reply #1

4. Thanks. I was wondering

if the info could be overwritten or altered.

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Lefty48197

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Wed Feb-23-05 07:32 PM
Response to Original message

2. What does that mean?

I usually crop my photos down a little bit before posting them on the internet to prove I own the original.

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alfredo

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Wed Feb-23-05 10:20 PM
Response to Reply #2

3. steganography is

embedding information in an image. It's a good way to hide things.

http://www.jjtc.com/Steganography/

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intheflow

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Thu Feb-24-05 04:17 PM
Response to Original message

5. This is why I prefer film.

To prove ownership.

I also prefer film because digital information is only as good as the reader technology. If someone or a virus were to wipe out my computer, or if in the future a better but non-compatible digital imaging system replaces how we see digital images, I will still have my negatives to prove ownership--and the images will still be readable with nothing more technical than the sun.

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