Dynamic quantum secret sharing by using d-dimensional GHZ state
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Through generating the d-dimensional GHZ state in the Z-basis and measuring it in the X-basis, a dynamic quantum secret sharing scheme is proposed. In the proposed scheme, multiple participants can be added or deleted in one update period, and the shared secret does not need to be changed. The participants can be added or deleted by themselves, and the dealer does not need to be online. Compared to the existing schemes, the proposed scheme is more efficient and more practical.
KeywordsQuantum secret sharing Dynamic quantum secret sharing d-dimensional GHZ state Quantum cryptography
Funding was provided by NSF of China (Grant No. 61170250).
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