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- W2950358064 abstract "Threshold secret sharing schemes enable a dealer to share a secret among n parties such that only subsets of parties of cardinality at least (k = k(n)) can reconstruct the secret. Komargodski, Naor and Yogev (TCC 2016-B) proposed an efficient scheme for sharing a secret among an unbounded number of parties such that only subsets of k parties can recover the secret, where k is any fixed constant. This access structure is known as k-threshold. They left open the possibility of an efficient scheme for the dynamic threshold access structure, in which the qualified sets are of increasing size as the number of parties increases. We resolve this open problem and present a construction in which the share size of the t-th party is (O(t^4cdot log t)) bits." @default.
- W2950358064 created "2019-06-27" @default.
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- W2950358064 date "2017-01-01" @default.
- W2950358064 modified "2023-09-26" @default.
- W2950358064 title "Evolving Secret Sharing: Dynamic Thresholds and Robustness." @default.
- W2950358064 hasPublicationYear "2017" @default.
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