Achieving Secure Search over Encrypted Data for e-Commerce: A Blockchain Approach

【Author】 Guan, Zhitao; Wang, Naiyu; Fan, Xunfeng; Liu, Xueyan; Wu, Longfei; Wan, Shaohua

【Source】ACM TRANSACTIONS ON INTERNET TECHNOLOGY

【影响因子】3.989

【Abstract】The advances of Internet technology has resulted in the rapid and pervasive development of e-commerce, which has not only changed the production and operation mode of many enterprises, but also affected the economic development mode of the whole society. This trend has incurred a strong need to store and process large amounts of sensitive data. The traditional data storage and search solutions cannot meet such requirements. To tackle this problem, in this article, we proposed Consortium Blockchain-based Distributed Secure Search (CBDSS) Scheme over encrypted data in e-Commerce environment. By integrating the blockchain and searchable encryption model, sensitive data can be effectively protected. The consortium blockchain can ensure that only authorized nodes can join the system. To fairly assign nodes for the search tasks, we developed an endorsement strategy in which two agent roles are set up to divide and match the search tasks with the virtual resources according to the load capacity of each node. The security analysis and experiments are conducted to evaluate the performance of our proposed scheme. The evaluation results have proved the reliability and security of our scheme over existing methods.

【Keywords】Blockchain; searchable encryption; Top-k search; smart contract

【发表时间】2021 FEB

【收录时间】2022-01-02

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