MuGKeG: Secure Multi-channel Group Key Generation Algorithm for Wireless Networks

Naumana Ayub, Mamoon Raja, Saad Saleh*, Muhammad U. Ilyas

*Corresponding author for this work

Research output: Contribution to journalArticleProfessional

2 Citations (Scopus)
47 Downloads (Pure)

Abstract

The broadcast nature of communication channels in infrastructureless wireless networks poses challenges to security. In this paper, we propose a novel technique namely secure multi-channel group key generation (MuGKeG) algorithm. We utilize the available channels switching behaviour between multiple nodes to hide our key from eavesdropper. We provide descriptions for an illustrative base case of three users and one eavesdropper and expand it for the case of N users with C channels and M eavesdroppers. Repeated application of the MuGKeG algorithm on the order of $$O(\log {N})$$O(logN) allows scaling the size of the group in the order of millions. We provide an analytical closed-form solution for the entropy of the secret group key generated when eavesdroppers follow an optimal attack strategy, and verify it by ns-3 simulations. Comparison with previous state-of-the-art schemes suggests that MuGKeG can provide upto 20 kbps increase in secrecy rate with a scalable key size.
Original languageEnglish
Pages (from-to)4799-4818
JournalWireless personal communications
Volume96
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Security;
  • wireless networks
  • group key generation

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