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As quoted above, a TEE is a hardware-backed secure area of the main processor (like ARM TrustZone or Intel SGX). Technically speaking, the TEE is just the hardware fortress (exceptions exist like TrustZone) whilst a Content Decryption Module (CDM) like Google’s Widevine, Apple’s FairPlay, and Microsoft’s PlayReady use the TEE to ensure cryptographic keys and decrypted media buffers are never exposed to the host operating system let alone the user’s browser. For the purposes of this article, I may at times refer to them interchangeably but all you need to know is that they work together and in any case, the host OS can’t whiff any of their farts so to speak.
，这一点在爱思助手下载最新版本中也有详细论述
這不是個案。那些曾經斥責子女「別老盯着屏幕」的父母，如今自己卻成了最難放下手機的人，過年回家管控父母手機使用，已成為中國年輕人心照不宣的「新年俗」。
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