Verifiable Quantum (<Emphasis Type="Italic">k</Emphasis>,<Emphasis Type="Italic">n</Emphasis>)-threshold Secret Key Sharing |
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| Authors: | Yu-Guang Yang Yi-Wei Teng Hai-Ping Chai Qiao-Yan Wen |
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| Institution: | 1.College of Computer Science and Technology,Beijing University of Technology,Beijing,China;2.State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing,China;3.State Key Laboratory of Information Security,Graduate University of Chinese Academy of Sciences,Beijing,China;4.State Key Laboratory of Integrated Services Network,Xidian University,Xi’an,China |
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| Abstract: | Based on Lagrange interpolation formula and the post-verification mechanism, we show how to construct a verifiable quantum
(k,n) threshold secret key sharing scheme. Compared with the previous secret sharing protocols, ours has the merits: (i) it can
resist the fraud of the dealer who generates and distributes fake shares among the participants during the secret distribution
phase; Most importantly, (ii) It can check the cheating of the dishonest participant who provides a false share during the
secret reconstruction phase such that the authorized group cannot recover the correct secret. |
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| Keywords: | |
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