We live in an age of corporate warfare.
Recently Kaspersky group has identified a backdoor that may be related to certain Western imperialists.
http://www.theinquirer.net/inquirer/news/2395638/kaspersky-fingers-nsa-style-equation-group-for-hard-drive-backdoor-epidemicI can't prove it was the NSA, but I think it was the NSA, possibly operating through imperialist running dogs.
However, the other problem is NOT the NSA - it is the general willingness of corporate money-grubbers to spy on customers for profit, even without spooks to lead them.
http://www.theinquirer.net/inquirer/news/2396033/lenovo-caught-shipping-pcs-with-pre-installed-superfish-malwareIf the corps themselves are going to preinstall malware, politically incorrect thinkers are going to need to deploy open source solutions.
https://www.fsf.org/campaigns/I am not a tech expert. I don't know about all this 'perfect forward secrecy' and 'asymmetric key' stuff.
But the struggle for free speech in the 21st century is going to require free software. This is not technical. This is political.