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- W2982406858 abstract "Evolving secret-sharing schemes, introduced by Komargodski, Naor, and Yogev (TCC 2016b), are secret-sharing schemes in which there is no a-priory upper bound on the number of parties that will participate. The parties arrive one by one and when a party arrives the dealer gives it a share; the dealer cannot update this share when other parties arrive. Motivated by the fact that when the number of parties is known, ramp secret-sharing schemes are more efficient than threshold secret-sharing schemes, we study evolving ramp secret-sharing schemes. Specifically, we study evolving (b(j), g(j))-ramp secret-sharing schemes, where (g,b: mathbb {N}rightarrow mathbb {N}) are non-decreasing functions. In such schemes, any set of parties that for some j contains g(j) parties from the first parties that arrive can reconstruct the secret, and any set such that for every j contains less than b(j) parties from the first j parties that arrive cannot learn any information about the secret." @default.
- W2982406858 created "2019-11-08" @default.
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- W2982406858 date "2020-01-01" @default.
- W2982406858 modified "2023-09-26" @default.
- W2982406858 title "Evolving Ramp Secret Sharing with a Small Gap" @default.
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- W2982406858 doi "https://doi.org/10.1007/978-3-030-45721-1_19" @default.
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