ImmoralityPet t1_jbck1cn wrote
Reply to comment by volci 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
>If you're altering a source file (by adding information, as in this example), it's detectable
Only if you have access to the original, unaltered file. And it's not the alteration that's undetectable, it's the fact that information was encoded using the alteration. That's why they describe using probabilistic filters to do the encoding.
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