How to retrieve the encrypted data on the blockchain

【Author】 Li, Huige; Zhang, Fangguo; Luo, Peiran; Tian, Haibo; He, Jiejie

【Source】KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS

【影响因子】0.972

【Abstract】Searchable symmetric encryption (SSE) scheme can perform search on encrypted data directly without revealing the plain data and keywords. At present, many constructive SSE schemes were proposed. However, they cannot really resist the malicious adversary, because it (i.e., the cloud server) may delete some important data. As a result, it is very likely that the returned search results are incorrect. In order to better guarantee the integrity of outsourcing data, and ensure the correction of returned search results at the same time, in this paper, we combine SSE with blockchain (BC), and propose a SSE-on-BC framework model. We then construct two concrete schemes based on the size of the data, which can better provide privacy protection and integrity verification for data. Lastly, we present their security and performance analyses, which show that they are secure and feasible.

【Keywords】Searchable encryption; blockchain; cloud-storage; symmetric encryption; privacy

【发表时间】2019 30-Nov

【收录时间】2022-01-02

【文献类型】

【主题类别】

--