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Paper Abstract and Keywords
Presentation 2022-03-08 15:20
Bypassing Isolated Execution on RISC-V Keystone using Fault Injection
Shoei Nashimoto, Daisuke Suzuki (Mitsubishi Electric), Rei Ueno, Naofumi Homma (Tohoku Univ.) VLD2021-101 HWS2021-78
Abstract (in Japanese) (See Japanese page) 
(in English) This paper summarizes an attack and countermeasure against RISC-V Keystone from a paper [1] to be presented at TCHES (IACR Transactions on Cryptographic Hardware and Embedded Systems) 2022. The idea of the proposed attack is to achieve unauthorized memory access by skipping an instruction to change the isolated execution settings of the trusted execution environment provided by Keystone. We implemented a Keystone sample application on HiFive Unleashed board and demonstrated the effectiveness of the proposed attack by using electromagnetic fault injection. In addition, we proposed a software-based countermeasure against the proposed attack as a build scheme. On the basis of security claims and assumptions on the countermeasure, we proved that the countermeasure is resistant to any instruction skipping. We also discussed the scope of effectiveness of this countermeasure for Keystone.
Keyword (in Japanese) (See Japanese page) 
(in English) RISC-V / Trusted Execution Environment / Keystone / Fault Injection Attack / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 413, HWS2021-78, pp. 141-146, March 2022.
Paper # HWS2021-78 
Date of Issue 2022-02-28 (VLD, HWS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF VLD2021-101 HWS2021-78

Conference Information
Committee VLD HWS  
Conference Date 2022-03-07 - 2022-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Design Technology for System-on-Silicon, Hardware Security, etc. 
Paper Information
Registration To HWS 
Conference Code 2022-03-VLD-HWS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Bypassing Isolated Execution on RISC-V Keystone using Fault Injection 
Sub Title (in English)  
Keyword(1) RISC-V  
Keyword(2) Trusted Execution Environment  
Keyword(3) Keystone  
Keyword(4) Fault Injection Attack  
Keyword(5)  
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1st Author's Name Shoei Nashimoto  
1st Author's Affiliation Mitsubishi Electric (Mitsubishi Electric)
2nd Author's Name Daisuke Suzuki  
2nd Author's Affiliation Mitsubishi Electric (Mitsubishi Electric)
3rd Author's Name Rei Ueno  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Naofumi Homma  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2022-03-08 15:20:00 
Presentation Time 25 minutes 
Registration for HWS 
Paper # VLD2021-101, HWS2021-78 
Volume (vol) vol.121 
Number (no) no.412(VLD), no.413(HWS) 
Page pp.141-146 
#Pages 6 
Date of Issue 2022-02-28 (VLD, HWS) 

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