Contact tracing is paramount to fighting the pandemic but it comes with legitimate privacy concerns. This paper proposes a system enabling both, contact tracing and data privacy. We propose the use of the Intel SGX trusted execution environment to build a privacy-preserving contact tracing backend. While the concept of a confidential computing backend proposed in this paper can be combined with any existing contact tracing smartphone application, we describe a full contact tracing system for demonstration purposes. A prototype of a privacy-preserving contact tracing system based on SGX has been implemented by the authors in a hackathon.

中文翻译：

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用于保护隐私的联系人追踪的机密计算

接触者追踪对于抗击大流行至关重要，但它伴随着合法的隐私问题。本文提出了一个系统，可以实现联系人追踪和数据隐私。我们建议使用英特尔 SGX 可信执行环境来构建保护隐私的联系人跟踪后端。虽然本文中提出的机密计算后端的概念可以与任何现有的联系人跟踪智能手机应用程序相结合，但我们为了演示目的描述了一个完整的联系人跟踪系统。作者在黑客马拉松中实现了基于 SGX 的隐私保护联系人跟踪系统的原型。