Abstract
The majority of mobile devices today are based on Arm architecture that supports the hosting of trusted applications in Trusted Execution Environment (TEE). RISC-V is a relatively new open-source instruction set architecture that was engineered to fit many uses. In one potential RISC-V usage scenario, mobile devices could be based on RISC-V hardware. We consider the implications of porting the mobile security stack on top of a RISC-V system on a chip, identify the gaps in the open-source Keystone framework for building custom TEEs, and propose a security architecture that, among other things, supports the GlobalPlatform TEE API specification for trusted applications. In addition to Keystone enclaves the architecture includes a Trusted Hart - a normal core that runs a trusted operating system and is dedicated for security functions, like control of the device's keystore and the management of secure peripherals. The proposed security architecture for RISC-V platform is verified experimentally using the HiFive Unleashed RISC-V development board.
Original language | English |
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Title of host publication | Proceedings - 2022 IEEE 21st International Conference on Trust, Security and Privacy in Computing and Communications, TrustCom 2022 |
Publisher | IEEE |
Pages | 1587-1596 |
Number of pages | 10 |
ISBN (Electronic) | 978-1-6654-9425-0 |
DOIs | |
Publication status | Published - 2022 |
MoE publication type | A4 Conference publication |
Event | IEEE International Conference on Trust, Security and Privacy in Computing and Communications - Virtual, Online, China Duration: 9 Dec 2022 → 11 Dec 2022 Conference number: 21 |
Publication series
Name | IEEE International Conference on Trust, Security and Privacy in Computing and Communications |
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ISSN (Electronic) | 2324-9013 |
Conference
Conference | IEEE International Conference on Trust, Security and Privacy in Computing and Communications |
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Abbreviated title | TrustCom |
Country/Territory | China |
City | Virtual, Online |
Period | 09/12/2022 → 11/12/2022 |
Keywords
- enclaves
- mobile security
- RISC-V
- TEE