Semiquantum secret sharing using entangled states

Qin LI, Wai Hong CHAN, Dong-Yang LONG

Research output: Contribution to journalArticlespeer-review

102 Citations (Scopus)


Secret sharing is a procedure for sharing a secret among a number of participants such that only the qualified subsets of participants have the ability to reconstruct the secret. Even in the presence of eavesdropping, secret sharing can be achieved when all the members are quantum. So what happens if not all the members are quantum? In this paper, we propose two semiquantum secret sharing protocols by using maximally entangled Greenberger-Horne-Zeilinger-type states in which quantum Alice shares a secret with two classical parties, Bob and Charlie, in a way that both parties are sufficient to obtain the secret, but one of them cannot. The presented protocols are also shown to be secure against eavesdropping. Copyright © 2010 The American Physical Society.
Original languageEnglish
Article number022303
JournalPhysical Review A
Issue number2
Publication statusPublished - Aug 2010


Li, Q., Chan, W. H., & Long, D.-Y. (2010). Semiquantum secret sharing using entangled states. Physical Review A, 82(2). Retrieved from

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