Node detection and message integrity through quantum circuits

This paper designs quantum testing circuit to detect intermediate malicious node and achieve message integrity in the distributed quantum computing. The proposed mechanism has several improvements shown as follows. The random key generation between Alice and Bob such that an attack cannot break this deriving process. Local unitary operations and quantum teleportation in the entangled particles can be used to transfer quantum information in a secure way. For intermediate node has no capability to differentiate which qubit is quantum superposition state or quantum entangled state. In regard to node detection, the receiver has the capability to judge whether intermediate node is honest or not by using quantum testing circuit. Based on this physical property, quantum circuit could be detect malicious node and achieve message integrity. The proposed circuit is scalable.