It seems somebody reversed this Intel scrambler at least to some extent (I only skimmed the article): http://www.sciencedirect.com/science/article/pii/S1742287

It seems somebody reversed this Intel scrambler at least to some extent (I only skimmed the article): http://www.sciencedirect.com/science/article/pii/S1742287616300032#sec4 http://www.sciencedirect.com/science/article/pii/S1742287616... They suggest that the scrambler is reseeded randomly on every power up so it may be hard to control raw bits on the data bus.