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It would be nice if this kind of thing could be used to stop cheating in games providing a secure channel of communication between server --> cpu --> gpu, but that likely won't work considering it's not working very well to stop media from being pirated in it's current application.

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Yes, this is one application.

Google "Software Guard Extensions" and "Intel Enclave"

[1]: https://en.wikipedia.org/wiki/Software_Guard_Extensions

Any idea if commercial games are using this yet?

There are a few DRMs that offer using it but none of them are in use mostly because of market share issues.

SGX isn’t available on the majority of consumer CPUs because it’s a fairly new extension and it’s Intel exclusive.

I know of a few enterprise products that use it for their “soft-dongle” licensing if you don’t want to plug in a license dongle in your server, yes it’s 2018 and we still have license dongles like it’s 1988, ESRI I’m looking at you.

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