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A multi-source feedback based trust calculation mechanism for edge computing

To increase the adoption of edge computing applications, the system of edge computing should establish trust relationship between cooperative devices to alleviate the security concerns from numerous users. The lack of trust between cooperative devices has hindered the universal acceptance of edge computing as outsourced computing services. In this work, a multi-source feedback based trust calculation mechanism is originally proposed for edge computing. Due to the multi-source feedback mechanism is used for global trust calculation, this trust calculation scheme is more reliable to against bad-mouthing attacks caused by malicious feedback providers. We also adopt lightweight trust evaluating mechanism for cooperations of network devices in edge computing, which is suitable for large-scale edge computing because it facilitates low-overhead trust computing algorithms. The experimental results show that the proposed trust calculation scheme significantly outperforms existing approaches in both computing speed and reliability.