NDLI: Hardware Isolation for Trusted Execution

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Hardware Isolation for Trusted Execution

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Hardware Isolation for Trusted Execution

Content Provider	ACM Digital Library
Author	Ekberg, Jan-Erik
Abstract	For more than a decade, Trusted Execution Environments (TEEs), found primarily in mobile phone and tablets, have been used to implement operator and third-party secure services like payment clients, electronic identities, rights management and device-local attestation. For many years, ARM TrustZone A (TM) (TZA) primitives were more or less the only available hardware mechanism to build a TEE, but in recent years alternative hardware security solutions have emerged for the same general purpose --- some are more tailored to the upcoming IoT device market whereas we also now have hardware that potentially can bring TEEs into the cloud infrastructure. In my talk I will introduce the contemporary TEE as is being deployed in today's devices, but one focal point of the presentation is on a functional comparison between the hardware support provided by TZA and the recently released and deployed Intel SGX(TM) and ARM TrustZone M (TM) architectures. Each solution has its relative strengths and drawbacks that reflects its main deployment purpose, and as a result, the software stack that completes the TEE environment will have to significantly adapt to each individual hardware platform. The final part of the talk will present a few conducted tests and research prototypes where we have gone beyond the TEE as it typically is set up today -- e.g. exploring problems emerging in a cloud environment with migrating workloads as well as policy enforcement in IoT devices.
Starting Page	1
Ending Page	1
Page Count	1
File Format	PDF
ISBN	9781450345644
DOI	10.1145/2994459.2994460
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2016-10-24
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Platform security Security
Content Type	Text
Resource Type	Article

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