Fog based secure service discovery for internet of multimedia things: a cross-blockchain approach

Haoran Liang, Jun Wu, Xi Zheng, Mengshi Zhang, Jianhua Li, Alireza Jolfaei

Research output: Contribution to journalArticlepeer-review

Abstract

The Internet of Multimedia Things (IoMT) has become the backbone of innumerable multimedia applications in various fields. The wide application of IoMT not only makes our life convenient but also brings challenges to service discovery. Service discovery aims to leverage location information and trust evidence scattered in a variety of multimedia applications to find trusted IoMT devices that can provide specific service in target areas. However, the eavesdropping and tampering to these sensitive IoMT data during the trust propagation process invalidate the service discovery process. To address these challenges, we propose Secure Service Discovery (SSD) for IoMT using cross-blockchain-enabled fog computing. To resist the tampering and eavesdropping during the trust propagation process, a scalable cross-blockchain structure consisting of multiple parallel blockchains is first proposed based on fog, in which different parallel blockchains can be orchestrated to propagate encrypted location information and trust evidence of different applications. Moreover, to enable a cross-blockchain structure to leverage encrypted location information and trust evidence to find trusted IoMT devices in preset areas, a novel privacy-preserving range query is proposed to query and aggregate trust evidence. Security analysis and simulations are carried out to demonstrate the effectiveness and security of the proposed SSD.
Original languageEnglish
Article number96
Number of pages23
JournalACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)
Volume16
Issue number3s
DOIs
Publication statusPublished - Jan 2021

Keywords

  • Internet of Multimedia Things (IoMT)
  • blockchain
  • privacy-preserving
  • fog computing

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