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Whitespace Steganography

darkside.com.au

11–20 of 21 posts

Re: Whitespace Steganography

#11
I'm wondering if steganography could become a practical transfer method in the event that governments start to prohibit encryption (and of course steganography).

Will they prohibit spurious whitespace in documents?

Re: Whitespace Steganography

#13

Even better, you can use spacing within a line to create a 3-D effect to emphasize certain words: https://en.wikipedia.org/wiki/ASCII_stereogram#Text_emphasis

I fail to see a secret message. What exactly should I be looking for?

"John Smith is responsible"

Cross (or relax and sufficiently uncross) your eyes until the two columns overlay perfectly. Those words will be at a different "depth"; the message literally pops out at you.

Re: Whitespace Steganography

#14

Even better, you can use spacing within a line to create a 3-D effect to emphasize certain words: https://en.wikipedia.org/wiki/ASCII_stereogram#Text_emphasis

I fail to see a secret message. What exactly should I be looking for?

I could not do it as well. My monitor is too far away I guess (about 60-70 cm).

Re: Whitespace Steganography

#15

Even better, you can use spacing within a line to create a 3-D effect to emphasize certain words: https://en.wikipedia.org/wiki/ASCII_stereogram#Text_emphasis

I fail to see a secret message. What exactly should I be looking for?

It's a stereogram, you have to cross your eyes (or relax to infinity, I could never get that right) to see it. In the one linked, it shows 'John Smith is responsible' pretty clearly. Like the Magic Eye books... but in text. Works quite well actually.

https://en.wikipedia.org/wiki/Stereoscopy

Re: Whitespace Steganography

#16
post #15

Earlier quoted context omitted.

I fail to see a secret message. What exactly should I be looking for?

It's a stereogram, you have to cross your eyes (or relax to infinity, I could never get that right) to see it. In the one linked, it shows 'John Smith is responsible' pretty clearly. Like the Magic Eye books... but in text. Works quite well actually. https://en.wikipedia.org/wiki/Stereoscopy

Compared to some single image stereograms, it's pretty easy for me to see the 3D effect either way. The "straight" view shows the message in front of the rest, cross-eyed it's behind.

Of course, it's not particularly "secure", there would have to be layers of encryption of some kind if the goal is keeping the message hidden.

Re: Whitespace Steganography

#17
This neat and very readable page layout is rather pleasant. It's not often that you find sites like these anymore.

I also looked at the page's source to see if anything was hidden in trailing whitespace there, and wasn't disappointed by what I saw either.

Re: Whitespace Steganography

#19
Reminds me of an underhanded code submission I saw a couple of months ago, where it looked like a 1-liner script, but the malicious part was encoded in the number of spaces trailing each line of the file.
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