Advances in Privacy-Preserving Ciphertext Retrieval
The ciphertext retrieval techniques are designed to provide query services over encrypted data and to improve the availability of encrypted data.However,most of existing methods leak additional information besides the query result,which may be utilized by the attacker to recover plaintext data or queries.How to enhance the privacy-preserving features in ciphertext retrieval and achieve the minimisation of information leakage has received a lot of attention from researchers.In recent years,with the rapid development of hardware chip technology and new cryptographic technology,a number of novel methods were proposed for privacy-preserving ciphertext retrieval.This paper mainly focuses on the research hotspots of diversified ciphertext retrieval,ciphertext retrieval based on trusted execution environment and private information retrieval,and summarizes the future development trends.
Ciphertext retrievalTrusted execution environmentPrivate information retrieval
万方数据
维普
