Publication: Design and Analysis of a True Random Number Generator Based on GSR Signals for Body Sensor Networks
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2019-05-01
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MDPI
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Abstract
Today, medical equipment or general-purpose devices such as smart-watches or smart-textiles can acquire a person's vital signs. Regardless of the type of device and its purpose, they are all equipped with one or more sensors and often have wireless connectivity. Due to the transmission of sensitive data through the insecure radio channel and the need to ensure exclusive access to authorised entities, security mechanisms and cryptographic primitives must be incorporated onboard these devices. Random number generators are one such necessary cryptographic primitive. Motivated by this, we propose a True Random Number Generator (TRNG) that makes use of the GSR signal measured by a sensor on the body. After an exhaustive analysis of both the entropy source and the randomness of the output, we can conclude that the output generated by the proposed TRNG behaves as that produced by a random variable. Besides, and in comparison with the previous proposals, the performance offered is much higher than that of the earlier works.
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This article belongs to the Section Internet of Things
Keywords
Galvanic Skin Response (Gsr), Entropy, Randomness, Random Number Generators (Rng), Hilbert transform
Bibliographic citation
Camara, C., Martín, H., Peris-López, P. y Aldalaien, M. (2019). Design and Analysis of a True Random Number Generator Based on GSR Signals for Body Sensor Networks. Sensors, 19(9), 2033.