A lightweight cryptographic system for implantable biosensors
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Date
2014
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
This paper presents a lightweight cryptographic system integrated onto a multi-function implantable biosensor prototype. The resulting heterogeneous system provides a unique and fundamental capability by immediately encrypting and signing the sensor data upon its creation within the body. By providing these security services directly on the implantable sensor, a number of low-level attacks can be prevented. This design uses the recently standardized SHA-3 Keccak secure hash function implemented in an authenticated encryption mode. The security module consists of the DuplexSponge security core and the interface wrapper. The security core occupies only 1550 gate-equivalents, which is the smallest authenticated encryption core reported to date. The circuit is fabricated using 0.18 μm CMOS technology and uses a supply voltage of 1.8 V. The simulated power consumption of the complete cryptosystem with a 500 KHz clock is below 7 μW.
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Publication status
published
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Editor
Book title
2014 IEEE Biomedical Circuits and Systems Conference (BioCAS) Proceedings
Journal / series
Volume
Pages / Article No.
472 - 475
Publisher
Curran
Event
2014 IEEE Biomedical Circuits and Systems Conference (BioCAS 2014)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Lightweight encryption; Keccak hash function; Authentication, Privacy; Implantable biosensor
Organisational unit
03996 - Benini, Luca / Benini, Luca