Function Secret Sharing

  title={Function Secret Sharing},
  author={Elette Boyle and Niv Gilboa and Yuval Ishai},
Motivated by the goal of securely searching and updating distributed data, we introduce and study the notion of function secret sharing (FSS). This new notion is a natural generalization of distributed point functions (DPF), a primitive that was recently introduced by Gilboa and Ishai (Eurocrypt 2014). Given a positive integer p ≥ 2 and a class F of functions f : {0, 1} → G, where G is an Abelian group, a p-party FSS scheme for F allows one to split each f ∈ F into p succinctly described… CONTINUE READING
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