Layered semiquantum secure communication protocols

Abstract

In this paper, we harness the potential offered by multidimensional states in secure communication with only one quantum participant. We propose four protocols for--(i) layered semi--quantum key distribution, (ii) layered semi-quantum secret sharing, (iii) integrated layered semi-quantum key distribution and secret sharing, and, (iv) integrated layered semi-quantum secure direct communication and key distribution to share secret information in an arbitrary layered network. All the four protocols allow for simultaneous distribution of secure information in all the layers of a network, thanks to multidimensional states.Comment: 13 pages, 2 figure