Accelerometer and Fuzzy Vault-Based Secure Group Key Generation and Sharing Protocol for Smart Wearables

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

24 Scopus Citations
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Author(s)

  • Girish Revadigar
  • Chitra Javali
  • Athanasios V. Vasilakos
  • Wen Hu
  • Sanjay Jha

Detail(s)

Original languageEnglish
Article number7934407
Pages (from-to)2467-2482
Number of pages16
Journal / PublicationIEEE Transactions on Information Forensics and Security
Volume12
Issue number10
Online published26 May 2017
Publication statusPublished - Oct 2017
Externally publishedYes

Abstract

The increased usage of smart wearables in various applications, specifically in health-care, emphasizes the need for secure communication to transmit sensitive health-data. In a practical scenario, where multiple devices are carried by a person, a common secret key is essential for secure group communication. Group key generation and sharing among wearables have received very little attention in the literature due to the underlying challenges: 1) difficulty in obtaining a good source of randomness to generate strong cryptographic keys, and 2) finding a common feature among all the devices to share the key. In this paper, we present a novel solution to generate and distribute group secret keys by exploiting on-board accelerometer sensor and the unique walking style of the user, i.e., gait. We propose a method to identify the suitable samples of accelerometer data during all routine activities of a subject to generate the keys with high entropy. In our scheme, the smartphone placed on waist employs fuzzy vault, a cryptographic construct, and utilizes the acceleration due to gait, a common characteristic extracted on all wearable devices to share the secret key. We implement our solution on commercially available off-the-shelf smart wearables, measure the system performance, and conduct experiments with multiple subjects. Our results demonstrate that the proposed solution has a bit rate of 750 b/s, low system overhead, distributes the key securely and quickly to all legitimate devices, and is suitable for practical applications.

Research Area(s)

  • fuzzy vault, gait, group key, key sharing, Smart wearable devices

Citation Format(s)

Accelerometer and Fuzzy Vault-Based Secure Group Key Generation and Sharing Protocol for Smart Wearables. / Revadigar, Girish; Javali, Chitra; Xu, Weitao; Vasilakos, Athanasios V.; Hu, Wen; Jha, Sanjay.

In: IEEE Transactions on Information Forensics and Security, Vol. 12, No. 10, 7934407, 10.2017, p. 2467-2482.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review