"Cryptography expert Riana Pfefferkorn has released a white paper [PDF] examining the feasibility of the vague requests made by Rosenstein and Wray. Their preferred term is "responsible encryption" -- a term that allows them to step around landmines like "encryption backdoors" or "we're making encryption worse for everyone!" Her paper shows "responsible encryption" is anything but. And, even if implemented, it will result in far less access (and far more nefarious exploitation) than Rosenstein and Wray think."
The Center for Internet and Society at Stanford Law School is a leader in the study of the law and policy around the Internet and other emerging technologies.