Secret-Sharing Schemes for High Slices

ePrint Report: Secret-Sharing Schemes for High Slices

Amos Beimel, Oriol Farràs, Oded Nir

In a secret-sharing scheme, a secret is shared among $n$ parties such that the secret can be recovered by authorized coalitions, while it should be kept hidden from unauthorized coalitions. In this work we study secret-sharing for $k$-slice access structures, in which coalitions of size $k$ are either authorized or not, larger coalitions are authorized and smaller are unauthorized. Known schemes for these access structures had smaller …

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