Re:Source Code Similarities Between NSA Malware and 'Regin' ...
by pjc50 on Tuesday January 27, 2015 @10:48AM
(#8953623)
as long as the kernel code isn't modified to allow accessing the memory of other processes
This is kind of what the kernel is for, though: if you can't modify the memory of other processes you can't handle IO for them. Hiding data in plaintext from the OS is basically impossible. Nearest you can get is heavy obfuscation (Skype) or communication to a secure hardware bastion (TPMs for DRM or otherwise, ARM TrustZone).
What might be more interesting and useful is secure communication between a remote website and a non-PC device. Kind of like PIN pads, but more user friendly.
This is kind of what the kernel is for, though: if you can't modify the memory of other processes you can't handle IO for them. Hiding data in plaintext from the OS is basically impossible. Nearest you can get is heavy obfuscation (Skype) or communication to a secure hardware bastion (TPMs for DRM or otherwise, ARM TrustZone).
What might be more interesting and useful is secure communication between a remote website and a non-PC device. Kind of like PIN pads, but more user friendly.