Cryptology ePrint Archive: Report 2002/050

Secret sharing schemes with three or four minimal qualified subsets

Jaume Martí-Farré and Carles Padró

Abstract: In this paper we study secret sharing schemes whose access structure has three or four minimal qualified subsets. The ideal case is completely characterized and for the non-ideal case we provide bounds on the optimal information rate.

Category / Keywords: cryptographic protocols / secret sharing schemes, information rate, ideal secret sharing schemes, linear secret sharing schemes

Date: received 19 Apr 2002

Contact author: matcpl at mat upc es

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Version: 20020419:185712 (All versions of this report)

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