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Secure circuit with optical energy harvesting against unpowered physical attacks

Title
Secure circuit with optical energy harvesting against unpowered physical attacks
Author
김동규
Keywords
Optical energy harvesting; Optical secure circuit; On-chip photodiode; Hardware security; Physical attack protection
Issue Date
2018-08
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
COMPUTERS & ELECTRICAL ENGINEERING, v. 70, page. 74-82
Abstract
This study presents an optical secure circuit for physical attack protection. On-chip photodiodes are integrated for optical energy harvesting to operate the optical secure circuit in a standard CMOS process. The aim of the proposed optical secure circuit is to protect the secure contents of the IC against external unpowered attacks. When invasive unpowered physical attacks such as decapsulation are attempted, the photodiodes accumulate charge from ambient light and activate the secure circuit path that shuts down the secure data path. The proposed secure circuit is fabricated using a standard 0.18 mu m 1P6M CMOS process with a small active area of 0.34 mm(2) with fully integrated on-chip photodiodes. When the chip is decapsulated and unpowered, the supply voltage of 600 mV with the ambient light is generated by the optical harvester, and the security data paths are shut down in 500 ns.
URI
https://www.sciencedirect.com/science/article/pii/S0045790617329956?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/119813
ISSN
0045-7906; 1879-0755
DOI
10.1016/j.compeleceng.2018.06.005
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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