id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-169081-34z49l4b	Sturzenegger, David	Confidential Computing for Privacy-Preserving Contact Tracing	2020-06-25		.txt	text/plain	2461	145	56	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. This paper proposes an Intel SGX-based contact tracing system which provably cannot reveal any user's location data while providing all benefits of a traditional contact tracing system. We focus on a confidential computing backend that can be used in combination with any of the currently existing contact tracing apps, requiring only minimal modifications. Current contact tracing apps typically rely on pushing the infected user's location data to the entire system. We propose the use of Intel SGX to build a confidential computing backend that provably cannot reveal any user data and outline a complete contact tracing system for demonstration purposes.	./cache/cord-169081-34z49l4b.txt	./txt/cord-169081-34z49l4b.txt