A secure search method for cloud data storage

Storing data on cloud computing platforms offers significant benefits in terms of performance and scalability; however, it also poses serious challenges related to security and privacy. One of the key issues is enabling users to search over encrypted data without revealing its contents to the cloud service provider. In this paper, we propose a secure search method based on searchable encryption combined with a novel digital signature scheme, allowing users to perform keyword queries without decrypting the data. The proposed method is implemented and evaluated in a cloud environment, with results demonstrating acceptable performance and strong security against common attacks such as query analysis.