A Comprehensive Analysis of Trusted Execution Environments

The Trusted Execution Environment (TEE) is designed to improve the security of computing environments. TEE is the computational isolation of the application's execution environment from the rest of the computing system. Therefore, applications will run safely in an isolated environment. Existing research definitions and explanations for TEE added confusion to the research community because they are ambiguous and inconsistent. It is hard to differentiate TEE from other related Trusted Environments. In this paper, we classify TEE according to industrial and academic research and experiments. A comparison of TEE features will be introduced in addition to further TEE exploration and research directions.