So, digging through the documentation for pixelknot, I found that it links to the F5 algorithm site which then refers to a paper on breaking F5 encryption here:
well well.. so here's the link to the air force in the paper:
The work on this paper was supported by Air Force Research Laboratory, Air Force
Material Command, USAF, under a research grant number F30602-00-1-0521.
So, digging through the documentation for pixelknot, I found that it links to the F5 algorithm site which then refers to a paper on breaking F5 encryption here:
https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/f5-steganography/Breaking%20F5.pdf
well well.. so here's the link to the air force in the paper: The work on this paper was supported by Air Force Research Laboratory, Air Force Material Command, USAF, under a research grant number F30602-00-1-0521.