Circuits, Communications and Systems, Pacific-Asia Conference on (2009)
May 16, 2009 to May 17, 2009
In order to distribute a secret key between two designated users, a mutually authenticated quantum key distribution (QKD) protocol based on entanglement swapping is proposed. Without classical information exchange, the two communication parts can securely share a session key in this protocol. Almost all qubits, except a few which are used to check the security of quantum channel, can produce the private key, and two pairs of entangled particles can generate two bits private key. The protocol is proved to secure using Stinespring Dilation Theorem, and the efficiency analysis is presented.
quantum key distribution, entanglement swapping, authentication, Bell-basis measurement
W. Liu, Z. Liu, X. Xue and H. Chen, "Mutually Authenticated Quantum Key Distribution Based on Entanglement Swapping," 2009 Pacific-Asia Conference on Circuits, Communications and Systems (PACCS 2009)(PACCS), Chengdu, 2009, pp. 380-383.