Invisible Barrier: Precise Matchmaking Encryption With Keyword Search From Lattices

Researchers developed a new encryption method called QKS-ME (quantum-resistant matchmaking encryption with keyword search) that lets people securely share sensitive data on cloud platforms while keeping it private from both the cloud provider and unauthorized users. The system uses lattice-based cryptography (mathematical structures resistant to attacks from quantum computers) and allows data owners to search and retrieve information using keywords without revealing anything about failed search attempts or the data itself.