A versatile quantum data hiding protocol with enhanced security

One of the fashionable applications of quantum technology recent years is to use quantum states and measurements to communicate which offers more reliable security promises. Quantum data hiding, which gives the source party the ability to share data among multiple receivers and reveal it at a later time depending on his will, is one of the promising information sharing schemes which may address a lot of security related issues nowadays, for instance, the bit commitment problem. In this work, we propose a novel quantum data hiding protocol which covers a variate of hiding scenarios. We improve the security level compared to the existing protocols by embedding the security into different layers of the protocol. The hiding of the data is secure against not only local operations and classical communications (LOCC), but also any nonlocal measurement. In addition, our protocol equips the source party the ability to abort the hiding protocol while it is still in the hiding stage, which is not possible with previous works. We also show that the unwanted information leakage at any stage in our protocol can be made asymptotically small with the increase of the dimension of the Hilbert space.