Hacker News Reader

Since the Apple chip is derived from an ARM design it would make sense to have the secure enclave implemented with TrustZone rather than being provided as a separate piece of hardware. Most probably a TEE (Trusted Execution Environment). Lots of TEEs are based on L4.

View on HN

Nope, it's a separate core, according to Apple.

Educated guess: it may be the application processor also has a trusted execution environment containing stubs that communicate with the Secure Enclave. This would prevent kernel level exploits from writing to the shared memory and mailboxes.

Reply on news.ycombinator.com