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Ambassy: A Runtime Framework to Delegate Trusted Applications in an ARM/FPGA Hybrid System by Dongil Hwang; Sanzhar Yeleuov; Jiwon Seo; Minu Chung; Hyungon Moon; Yunheung Paek is a Computer Science article available to read on EtoBox.

What is Ambassy: A Runtime Framework to Delegate Trusted Applications in an ARM/FPGA Hybrid System about?

Many mobile systems run on ARM-based devices today. People use these for increasingly diverse yet security-sensitive applications. ARM has adopted a security model to tackle this threat, where they manage private information in an isolated trusted execution environment (TEE) provided by TrustZone. This TrustZone-based model has been proven effective, but due to security concerns, it is available solely for the vendor's applications, thereby hindering the broad use of TrustZone. Consequently, we propose a runtime framework backed by TrustZone to construct a secondary TEE. AMBASSY has its residence built on an on-chip field-programmable gate array (FPGA), which is a standard component in an ARM/FPGA hybrid system readily available on the market today. This study, to the best of our knowledge, is the first attempt to broaden the use of TrustZone by using an FPGA to build a secondary TEE for arbitrary third-parties, which otherwise should be expelled to the Normal World. This paper describes many design challenges that we have overcome to fully implement AMBASSY on an FPGA. Our experiments demonstrate the practicality of AMBASSY by presenting the security analysis and performance resul

Who reads Ambassy: A Runtime Framework to Delegate Trusted Applications in an ARM/FPGA Hybrid System?

Author

Dongil Hwang; Sanzhar Yeleuov; Jiwon Seo; Minu Chung; Hyungon Moon; Yunheung Paek

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Published

2023

Language

EN

Field

Computer Science (Physical Sciences)