1994 | OriginalPaper | Chapter
Multi-Secret Sharing Schemes
Extended Abstract
Authors : Carlo Blundo, Alfredo De Santis, Giovanni Di Crescenzo, Antonio Giorgio Gaggia, Ugo Vaccaro
Published in: Advances in Cryptology — CRYPTO ’94
Publisher: Springer Berlin Heidelberg
Included in: Professional Book Archive
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A multi-secret sharing scheme is a protocol to share m arbitrarily related secrets s1, ..., sm among a set of participants $$ \mathcal{P} $$. In this paper we put forward a general theory of multi-secret sharing schemes by using an information theoretical framework. We prove lower bounds on the size of information held by each participant for various access structures. Finally, we prove the optimality of the bounds by providing protocols.