Security and universality improvement for trusted execution environment

Abstract

In this thesis, we propose a methodology to improve the universality and security of the Trusted Execution Environment (TEE), which is built based on ARM TrustZone technology. To improve the universality, we coordinate the virtualization extensions with TrustZone and create a new type of TEE, which can be publicly leveraged by 3rd party developers. For security, we describe how to create a secure channel between the application and the TEE services. The effectiveness of our work is evaluated by analyzing the security and performance of the proposed systems.