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TrustZone was announced 2012 (?). The Security Enclave is a separate very Apple designed chip. They've patented aspects of it, dated also 2012:

https://www.blackhat.com/docs/us-16/materials/us-16-Mandt-De... https://www.google.com/patents/US8832465




> TrustZone was announced 2012

No, 2012 was when Trustonic was formed from competing TEE vendors: ARM, Gemalto, and Giesecke & Devrient.

TrustZone has been around since before that. TI OMAP were front-runners of using it.




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