not the same at all. Trustzone is a special mode of the very same main CPU (more... | Hacker News

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		dmitrygr on March 12, 2023 \| parent \| context \| favorite \| on: The threat on your desk: Building an evil USB-C do... not the same at all. Trustzone is a special mode of the very same main CPU (more like intel's SMM), whereas PSP and ME are a separate core

elromulous on March 12, 2023 [–]

More specifically, trustzone is the arm equivalent of Intel's (mostly deprecated) sgx.

https://en.m.wikipedia.org/wiki/Software_Guard_Extensions

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