Re:Malware Uses Obscure Intel CPU Feature to Steal Data and ...
by johncolanduoni on Saturday June 10, 2017 @05:21AM
(#14526719)
It's not a black box. SGX code is unencrypted even at runtime, and as long as its running that code has to remain present and unencrypted. You can detect it at any time, not just when it starts up.
Re:Malware Uses Obscure Intel CPU Feature to Steal Data and ...
by SXX on Tuesday June 13, 2017 @03:17AM
(#14543323)
A bit too late response, but anyway. There is already apps that use SGX to safely work with DRM or private keys. If there is a way keep keys secret what would stop anyone from implementing interpreters that will keep code secret?
Yeah it's could be detected when it's start to be active, but it's doesn't have to. It's could be idle on PC for years undetected just waiting for remote command, trigger or special payload just for you.
PS: Also fact that secure enclave itself can't access system API mean nothing because half of software already have interpreters in it as well as frameworks for every possible activity bad or good.