首页|RecGuard:An efficient privacy preservation blockchain-based system for online social network users

RecGuard:An efficient privacy preservation blockchain-based system for online social network users

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Recommendation systems provide ease and convenience for users to address information overload problems while interacting with online platforms such as social media and e-commerce.However,it raises several questions about privacy,especially for users who prefer to remain anonymous,especially on online social networks(OSNs).Moreover,due to the commercialization of online users'data,some service providers sell users'data to third parties at the blind side of the users,which leads to trust issues between users and service providers.Such matters call for a system that gives online users much-needed control and autonomy of their data.With the advancement of blockchain technology,many research institutions are experimenting with decentralized technologies to resolve the OSN user dilemma of privacy intrusion against third parties and hacks.To resolve these limitations,we propose RecGuard,a privacy preservation blockchain-based network system.We developed two smart contracts,RG-SH and RG-ST,to ensure the security and privacy of user data.The RG-SH manages user data,whereas the RG-ST stores data.A graph convolutional network(GCN)was integrated with the blockchain-based system to detect malicious nodes.Finally,we implemented our framework prototype on a locally simulated network.The analysis and experiment results show that the proposed scheme demonstrates the effectiveness and privacy of users in our framework.

BlockchainPrivacyOnline social networkRecommender system

Samuel Akwasi Frimpong、Mu Han、Edward Kwadwo Boahen、Rexford Nii Ayitey Sosu、Isaac Hanson、Otu Larbi-Siaw、Isaac Baffour Senkyire

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Department of Computer Science and Technology,Jiangsu University,212013,Zhenjiang,China

Department of Computer Engineering,Ghana Communication Technology University,Ghana

Department of Computer Science,Ghana Communication Technology University,Ghana

Department of Telecom Engineering,Ghana Communication Technology University,Ghana

School of Finance and Economics Jiangsu University,212013,Zhenjiang,China

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2023

10.1016/j.bcra.2022.100111

区块链研究(英文)

区块链研究(英文)

EI
ISSN：
年,卷(期)：2023.(1)
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