Toward Efficient Multi-User Access Control Encrypted Search for Web Data Management

This research presents SEOMA, a new system for searchable encryption (SE, a method that lets users store encrypted data on servers while still being able to search it by keywords without revealing the data's contents). The system improves on existing approaches by supporting multiple users accessing the same data while also verifying that the data owner is legitimate and preventing malicious owners from uploading fake encrypted files. SEOMA uses attribute encryption (a technique that controls who can decrypt data based on their characteristics) and access control policies to manage which users can access what data, while using less computing power and bandwidth than previous solutions.