Secure circuit with optical energy harvesting against unpowered physical attacks
| Autor: | Byong-Deok Choi, Ji-Hoon Kim, Byeoncheol Lee, Dong Kyue Kim, Youngwoon Ko, Hyungseup Kim, Hyoungho Ko, Yeongjin Mun |
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| Rok vydání: | 2018 |
| Předmět: |
Hardware security module
Hardware_MEMORYSTRUCTURES General Computer Science business.industry Computer science 020208 electrical & electronic engineering Electrical engineering Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Chip 020202 computer hardware & architecture Photodiode law.invention Control and Systems Engineering law Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Cmos process business Optical energy Shut down Voltage PATH (variable) |
| Zdroj: | Computers & Electrical Engineering. 70:74-82 |
| ISSN: | 0045-7906 |
| DOI: | 10.1016/j.compeleceng.2018.06.005 |
| Popis: | 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 µm 1P6M CMOS process with a small active area of 0.34 mm2 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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