Towards a Secure Application-Semantic Aware Policy Enforcement Architecture (Transcript of Discussion)

摘要

Matt Blaze: How do you stop me from photographing the screen that displays my mail message?Reply: The analogue hole is always a problem unless congress does something about it. You could play the music, put a microphone in front of the speaker, and record it; that's always going to be a problem which I don't think it's technically feasible to solve.