Dynamic quantum secret sharing

Authors:
Jung-Lun Hsu;Song-Kong Chong;Tzonelih Hwang;Chia-Wei Tsai
Affiliations:
National Cheng Kung University, Tainan, Taiwan, ROC;National Cheng Kung University, Tainan, Taiwan, ROC;National Cheng Kung University, Tainan, Taiwan, ROC;National Cheng Kung University, Tainan, Taiwan, ROC
Venue:
Quantum Information Processing
Year:
2013

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Abstract

Based on the entanglement swapping of EPR pairs, a dynamic quantum secret sharing (QSS) scheme is proposed. The scheme has the following dynamic properties. Without modifying the secret shares of old agents, (1) an agent can join or leave the QSS; (2) two QSSs (m parties in the first QSS and n parties in the second QSS) can be integrated into an (m + n)-party QSS. Compared with the existing QSS schemes, the proposed dynamic QSS is more flexible in practical applications.