All of which came to a fairly dramatic end, when the UK Cambridge Lab released a utility that provided minor distortion to inages that whilst not noticeably chwnging the picture to “hunan perception” totally Ban-Jaxed the DW system. How this can be done with “Spread Spectrum”(SS) techniques was discussed adnausium in the mid 1990’s with “Digital watermarking”(DW). Thus you have to analyse the sensor not just in 2D but actually more dimentions to pull out the offset biases that apply at that level of sensor illumination. You can find utilities written to demonstrate this from back last century. Has noted because whilst the bottom bits of an image superficially appear random, they are not. Heck a lot of *nix come with “Command Line Tools” by default.īut as has noticed, there is a considerable gap between what is alledged and the very basics, hence his surprise.įor those reading along it’s “not new” for the FBI to “invent/manufacture” “Chinese Spys” they have done it before when the US executive has been banging the drum about how unfair it is that China are now doing what the US used to do…īut encryption is insufficient as A.
#Use of steganography in cyber espionage how to#
Importabtly most PC’s come with such tools built in if you know how to access it (again not particularly hard). Stenography is neither coding or ciphering it’s just hiding.Īs has noted anyone with any knowledge which “should” include a spy, would these days pre-encrypt the data such that “finding it” reveled nothing but high strength cryptography at best.
“I doubt that the stenography was just “found”.
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