Blockchain-based searchable symmetric encryption scheme

被引：23

作者：

Li, Huige ^{[1
,2
]}

Tian, Haibo ^{[1
,2
]}

Zhang, Fangguo ^{[1
,2
]}

He, Jiejie ^{[1
,2
]}

机构：

[1] Sun Yat Sen Univ, Sch Data & Comp Sci, Guangzhou 510006, Guangdong, Peoples R China

[2] Guangdong Key Lab Informat Secur, Guangzhou 510006, Guangdong, Peoples R China

来源：

COMPUTERS & ELECTRICAL ENGINEERING | 2019年 / 73卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Searchable symmetric encryption; Bitcoin; Blockchain; Fairness; Cloud-computing;

D O I：

10.1016/j.compeleceng.2018.10.015

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The mechanism for traditional searchable symmetric encryption (SSE) is pay-then-use. This situation is not fair to user because the cloud server may return wrong results. Besides, the user needs to verify these results locally. In order to ensure fairness and reduce user's calculations, we combined blockchain with SSE, and proposed a fair SSE scheme based on blockchain. Our scheme can guarantee fairness for both parties. That is, if the user is not honest, he cannot get right results from the server, and at the same time the server cannot get any information related to the plaintexts during this search process. If the server is not honest, except for the service charge, it will be punished automatically. Moreover, the user in our scheme does not need to verify the results locally. The security and performance analyses showed our scheme was semantic secure and feasible. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：32 / 45

页数：14