july

brypto

creating and destroying; built flying cars & autonomous vehicles, now building /faust, more here: /july, web: july.rocks

Part of this has to do with Intel x86 design, in the 70s and 80s as Intel was the dominant market leader in CPU cores, they kept throwing stuff ad hoc onto the chips they were building. Another reason they were eventually built in the low power market by ARM - Intel SGX being by built on x86 because it’s so haphazardly put together is vulnerable to side channel attacks. ARM (and its equivalent- ARM TrustZone) is also prone to having a single point of failure but the way it was designed was for components that could be more modular and separate (lower power MCUs needed more flexiblity in what components were going to be configured how vs power hungry x86 where you could just throw whatever junk in there and it would work) for a while this was done because everyone was on desktop, but now as we all know embedded systems are more prevalent than ever

Wake up babe, @july‘s explaining why TEEs are insecure from a historical standpoint

creating and destroying; built flying cars & autonomous vehicles, now building roc.camera, writings: july.rocks

Wake up and listen to @july's explanation about the historical insecurity of TEEs