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A low-power dual-factor authentication unit for secure implantable devices

Author(s)
Maji, Saurav; Banerjee, Utsav; Fuller, Samuel H.; Abdelhamid, Mohamed R.; Nadeau, Phillip M.; Yazicigil, Rabia Tugce; Chandrakasan, Anantha P.; ... Show more Show less
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Abstract
Abstract: This paper presents a dual-factor authentication protocol and its low-power implementation for security of implantable medical devices (IMDs). The protocol incorporates traditional cryptographic first-factor authentication using Datagram Transport Layer Security - Pre-Shared Key (DTLS-PSK) followed by the user's touch-based voluntary second-factor authentication for enhanced security. With a low-power compact always-on wake-up timer and touch-based wake-up circuitry, our test chip consumes only 735 pW idle state power at 20.15 Hz and 2.5 V. The hardware accelerated dual-factor authentication unit consumes 8 µW at 660 kHz and 0.87 V. Our test chip was coupled with commercial Bluetooth Low Energy (BLE) transceiver, DC-DC converter, touch sensor and coin cell battery to demonstrate standalone implantable operation and also tested using in-vitro measurement setup. ©2020 Paper presented at the 2020 IEEE Custom Integrated Circuits Conference (CICC 2020), March 22-25, 2020, Boston, Mass.
Date issued
2020-03
URI
https://hdl.handle.net/1721.1/124910
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
IEEE Custom Integrated Circuits Conference (CICC)
Publisher
IEEE
Citation
Maji, Saurav, et al., "A low-power dual-factor authentication unit for secure implantable devices." IEEE Custom Integrated Circuits Conference (CICC) 2020 (Piscataway, N.J.: IEEE, 2020): p. 1-4 doi 10.1109/cicc48029.2020.9075945 ©2020 Author(s)
Version: Author's final manuscript
ISBN
9781728160313

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