DEF CON 26 - Christopher Domas - The Ring 0 Facade Awakening the Processors Inner Demons

DEFCONConference2 HN recommenders · 2019–2026
24K views · talk · evergreen · Uploaded 2018-10-22

Christopher Domas's DEF CON 26 talk on secret processor registers that vendors reserve for third parties holding trusted keys. He examines how users are locked out of parts of their own CPUs.

HN commenters call his x86 internals talks spectacular and mention them whenever low-level processor surprises come up.

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3 comments from Hacker News

@kbenson2019 · in “Everybody Be Cool, This Is a Robbery”

While somewhat interesting, I'm not sure there's much to discuss unless the presentation or details are already available. Interestingly, this reminds me of two Defcon talks I watched in the last day or two, which also cover vulnerability through additional processors onboard.[1][2] 1: [LINK] 2: [VIDEO]

@daniel-thompson2021 · in “Compiling C Programs Into “Mov” Instructions (And Only “Mov” Instructions)”

These links don't work for me, but the videos are on YT: - [LINK] - [VIDEO] And yes, they are spectacular.

Strongly recommendsView on HN
@aecsocket2026 · in “Spaghettifying DRAM”

Holy shit, Christopher Domas is back. I remember watching his Defcon talks on x86 shenanigans[^1][^2] and being amazed at what he's been able to discover. Then he got whisked away by Intel and now drops this. I'm excited. [^1]: [VIDEO] [^2]: [LINK]

Strongly recommendsView on HN