Giving Mobile Security the Boot
TrustZone
TrustZone
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TrustZone 技<br />
• Hardware support for a trusted execution environment<br />
• Provides a separate “secure world”<br />
– Self-contained operating system<br />
– Isolated from “non-secure world”<br />
安 全 世 界<br />
• In AArch64, integrates well with Exception Levels( 例 外 層 級 )<br />
– EL3 only exists in <strong>the</strong> secure world<br />
– EL2 (hypervisor) not applicable in secure world.<br />
(C) 2016 Jonathan Levin & Technologeeks.com - Share freely, but please cite source!
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