Cluster state quantum entangled signature scheme
Wang Yu-wu · Computer Engineering and Applications Journal · 2012
A scheme of using Cluster quantum entangled state to quantum signature is presented.Cluster state of the program is used as a quantum channel,and each group of quantum bit string signed by Alice is distributed to Alice,notaries TA and inspection signer Bob.The way of loading message is that Alice does transformation operation on the first qubit unitary respectively,and the Bell measurement results of quantum bits are the signature of a message.Bob does the Bell measurement on the corresponding two-qubit to verify the signature,but it must be restricted by the notary TA.It is verified that Cluster state entanglement properties of entangled state,security,local operators have better performance.