A Blockchain-Based Privacy-Preserving Publish-Subscribe Model in IoT Multidomain Data Sharing

<div>This is system delay with different numbers of attributes and policies: (a) latency with different numbers of attributes on one subscriber and (b) latency with different numbers of policies in one event.</div>

Wireless Communications and Mobile Computing

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Figure 7

Figure 7: A Blockchain-Based Privacy-Preserving Publish-Subscribe Model in IoT Multidomain Data Sharing 