Title
Improved constructions of secret sharing schemes by applying (lambda, omega)-decompositions
Abstract
By using threshold schemes, λ-decompositions were introduced by Stinson [D.R. Stinson, Decomposition constructions for secret sharing schemes, IEEE Trans. Inform. Theory IT-40 (1994) 118–125] and used to achieve often optimal worst-case information rates of secret sharing schemes based on graphs. By using the broader class of ramp schemes, (λ,ω)-decompositions were introduced in [M. van Dijk, W.-A. Jackson, K.M. Martin, A general decomposition construction for incomplete secret sharing schemes, Des. Codes Cryptogr. 15 (1998) 301–321] together with a general theory of decompositions. However, no improvements of existing schemes have been found by using this general theory. In this contribution we show for the first time how to successfully use (λ,ω)-decompositions. We give examples of improved constructions of secret sharing schemes based on connected graphs on six vertices.
Year
DOI
Venue
2006
10.1016/j.ipl.2006.01.016
Information Processing Letters
Keywords
DocType
Volume
Cryptography,Secret sharing,Information rate
Journal
99
Issue
ISSN
Citations 
4
0020-0190
6
PageRank 
References 
Authors
0.46
0
4
Name
Order
Citations
PageRank
Marten Van Dijk12875242.07
Tom A. M. Kevenaar234421.90
Geert Jan Schrijen3797.46
Pim Tuyls41986126.39