TheSoup05 t1_jbbz3v3 wrote
Reply to comment by Schrecht in A group of researchers has achieved a breakthrough in secure communications by developing an algorithm that conceals sensitive information so effectively that it is impossible to detect that anything has been hidden by thebelsnickle1991
Well, allegedly whatever type of steganography the article about doesn’t, but they don’t go into detail so I have my doubts.
The extent of my experience with steganography was a grad course a few years back with a professor who was a big name in the field. So I’m not an expert or anything, but I am somewhat familiar with this. And in my experience the answer is no. It’s an arms race. Someone comes up with a way to hide data, someone else comes up with a way to find it, so someone else comes up with a new way to hide it, so someone comes up with a new way to find it, etc. That’s not to say it’s perfectly accurate and that you can always tell with 100% certainty if a file has data encoded in it, but every method I’ve seen creates some artifact that is generally detectable with with a high degree of accuracy using the right kind of statistical analysis.
Schrecht t1_jbccdli wrote
Interesting. I feel like there must be a way to inject what looks like normal noise and perturb it in ways that look look natural but carry a signal. But you sound like your professor knew his shit. Thanks, it's something to think about.
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