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Secret Sharing Schemes with Three or Four Minimal Qualified Subsets |
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| Authors: | Jaume?Martí-Farré mailto:jaumem@mat.upc.es" title=" jaumem@mat.upc.es" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Carles?Padró |
| Affiliation: | (1) Dept. Matemàtica Aplicada IV, Universitat Politècnica de Catalunya, C. Jordi Girona 1-3, Mòdul C3, Campus Nord, 08034 Barcelona, Spain;(2) Dept. Matemàtica Aplicada IV, Universitat Politècnica de Catalunya, C. Jordi Girona 1-3, Mòdul C3, Campus Nord, 08034 Barcelona, Spain |
| 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.AMS Classification 94A62 |
| Keywords: | cryptography secret sharing schemes information rate ideal schemes |
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