Visible to the public Time-controlled Regular Language Search over Encrypted Big Data

TitleTime-controlled Regular Language Search over Encrypted Big Data
Publication TypeConference Paper
Year of Publication2020
AuthorsYang, Y., Lu, K., Cheng, H., Fu, M., Li, Z.
Conference Name2020 IEEE 9th Joint International Information Technology and Artificial Intelligence Conference (ITAIC)
Date PublishedDec. 2020
ISBN Number978-1-7281-5244-8
KeywordsBig Data, big data security in the cloud, cloud, cloud computing, Data analysis, data privacy, data sharing, Encryption, information technology, Memory, pubcrawl, regular language, Searchable encryption, security, time-controlled

The rapid development of cloud computing and the arrival of the big data era make the relationship between users and cloud closer. Cloud computing has powerful data computing and data storage capabilities, which can ubiquitously provide users with resources. However, users do not fully trust the cloud server's storage services, so lots of data is encrypted and uploaded to the cloud. Searchable encryption can protect the confidentiality of data and provide encrypted data retrieval functions. In this paper, we propose a time-controlled searchable encryption scheme with regular language over encrypted big data, which provides flexible search pattern and convenient data sharing. Our solution allows users with data's secret keys to generate trapdoors by themselves. And users without data's secret keys can generate trapdoors with the help of a trusted third party without revealing the data owner's secret key. Our system uses a time-controlled mechanism to collect keywords queried by users and ensures that the querying user's identity is not directly exposed. The obtained keywords are the basis for subsequent big data analysis. We conducted a security analysis of the proposed scheme and proved that the scheme is secure. The simulation experiment and comparison of our scheme show that the system has feasible efficiency.

Citation Keyyang_time-controlled_2020