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The fuzzy identity-based signature allows a user with the private key for identity W to verify a signature signed by identity S if and only if W and S are within a certain distance judged by a threshold t. In previous fuzzy identity-based signature schemes, the threshold t is static and cannot be changed according to dynamic environment. This paper proposes a novel FISAT scheme(fuzzy identity-based...
In this paper, we propose a dynamic threshold and verifiable multi-secret sharing scheme. Some secrets are protected by distributing them among many participants, whereby only an authorized group of participants can reconstruct the secrets. In our scheme, the secret will change periodically and the dealer will periodically publish some of the information, in addition, the participants can verify the...
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