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>JTAG those keys out the enclave I'm not so optimistic. That is precisely the threat model. That is not to say that it is impossible. Side channel exfiltration
by bubblethink 7y ago
>JTAG those keys out the enclave
I'm not so optimistic. That is precisely the threat model. That is not to say that it is impossible. Side channel exfiltration from stuff like SGX has been shown, but that's a different game really.
- q3k 7y agoYeah, but people in the scene are good. Like, world class good. Like, 'perform fault injection to dump BootROM from SoC to get management core execution, discover CPU cores with a custom ISA doing DRM, black-box reverse engineer the ISA, exploit code running on those cores to get code execution, exploit silicon bugs to escalate and extract DRM keys from there' good.
- Freak_NL 7y agoIt's a challenge to circumvent DRM, so people with the skills to do so will attempt it. I expect that for many it will also be a matter of fighting back against something that is inherently a threat to (digital) civic freedoms. And because DRM is fundamentally broken (i.e., there is always the analogue hole at the end of the spectrum) it will never prevent piracy on its own.