Searchable Encryption for Privacy Preserving with Fine-Grained Access Control
摘要
Corporate cloud users and private cloud users are very concerned about the security of their information in the cloud. Before sending the information to the distant distributed storage server, the information can be encrypted at the client end to maintain the confidentiality of data. The keyword search feature ought to have the option to work over scrambled cloud data in order to maintain user data confidentiality. Searchable encryption makes it easy to browse encrypted data on cloud servers without decrypting it. Single keyword-based searchable encryption allows users to access a subset of documents containing keywords of their interest. Furthermore, it shouldn’t provide any details regarding the retrieved document or the term used to search. In this chapter, we provide a single keyword-based searchable encryption technique where several owners contribute their information and many users can get to the information. The attribute-based encryption scheme is utilized, allowing clients to access specific subsets of information from the cloud without uncovering access rights to the cloud server. Random oracle models show that the plan adaptively protects against chosen keyword attacks. Implemented the scheme on a Google cloud instance, and the performance of the plan proved useful in real-world applications.