Abstraction of Trusted Execution Environments as the Missing Layer for Broad Confidential Computing Adoption: A Systematization of Knowledge

Fuente: arXiv
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Main Authors: Michaud, Quentin, Ramezanian, Sara, Ayed, Dhouha, Levillain, Olivier, Garcia-Alfaro, Joaquin
Format: Preprint
Published: 2025
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author Michaud, Quentin
Ramezanian, Sara
Ayed, Dhouha
Levillain, Olivier
Garcia-Alfaro, Joaquin
author_facet Michaud, Quentin
Ramezanian, Sara
Ayed, Dhouha
Levillain, Olivier
Garcia-Alfaro, Joaquin
contents Trusted Execution Environments (TEEs) protect sensitive code and data from the operating system, hypervisor, or other untrusted software. Different solutions exist, each proposing different features. Abstraction layers aim to unify the ecosystem, allowing application developers and system administrators to leverage confidential computing as broadly and efficiently as possible. We start with an overview of representative available TEE technologies. We describe and summarize each TEE ecosystem, classifying them in different categories depending on their main design choices. Then, we propose a systematization of knowledge focusing on different abstraction layers around each design choice. We describe the underlying technologies of each design, as well as the inner workings and features of each abstraction layer. Our study reveals opportunities for improving existing abstraction layer solutions. It also highlights WebAssembly, a promising approach that supports the largest set of features. We close with a discussion on future directions for research, such as how future abstraction layers may evolve and integrate with the confidential computing ecosystem.
format Preprint
id arxiv_https___arxiv_org_abs_2512_22090
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Abstraction of Trusted Execution Environments as the Missing Layer for Broad Confidential Computing Adoption: A Systematization of Knowledge
Michaud, Quentin
Ramezanian, Sara
Ayed, Dhouha
Levillain, Olivier
Garcia-Alfaro, Joaquin
Cryptography and Security
Trusted Execution Environments (TEEs) protect sensitive code and data from the operating system, hypervisor, or other untrusted software. Different solutions exist, each proposing different features. Abstraction layers aim to unify the ecosystem, allowing application developers and system administrators to leverage confidential computing as broadly and efficiently as possible. We start with an overview of representative available TEE technologies. We describe and summarize each TEE ecosystem, classifying them in different categories depending on their main design choices. Then, we propose a systematization of knowledge focusing on different abstraction layers around each design choice. We describe the underlying technologies of each design, as well as the inner workings and features of each abstraction layer. Our study reveals opportunities for improving existing abstraction layer solutions. It also highlights WebAssembly, a promising approach that supports the largest set of features. We close with a discussion on future directions for research, such as how future abstraction layers may evolve and integrate with the confidential computing ecosystem.
title Abstraction of Trusted Execution Environments as the Missing Layer for Broad Confidential Computing Adoption: A Systematization of Knowledge
topic Cryptography and Security
url https://arxiv.org/abs/2512.22090