Secure quantum report with authentication based on six-particle cluster state and entanglement swapping

Abstract

A novel high-efficient secure quantum report with authentication based on six-particle cluster state and entanglement swapping is proposed. In our protocol, using N groups of six-particle cluster state, the legitimate users Bob and Charlie send their secret reports to their boss (Alice), who operates sixteen kinds of unitary operations after receiving the reports. Here, entanglement swapping of cluster states and maximum entanglement state measurement are employed by the communicators. It has been proved that our protocol has high level guarantees and honesty, and the scheme is secure not only against the intercept-and-resend attack but also against disturbance attack.