Cheating prevention in secret sharing

Ghodosi, Hossein, and Pieprzyk, Josef (2000) Cheating prevention in secret sharing. Lecture notes in computer science, 1841. pp. 328-341.

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The commonly used technique for cheating detection requires that extra information be given to each participant. However, in a secret sharing scheme when the size of shares increases the security of the system degrades. In this paper we study the cheating problem in Shamir's scheme(in the sense of Tompa and Woll attack) and present alternative solutions to this problem. First we consider cheating prevention via longer shares. Next we introduce redundant secret sharing schemes and show how they can be used for cheating prevention. Nonlinear secret sharing offers also some protection against cheaters. The work concludes with a discussion about a combined approach.

Item ID: 504
Item Type: Article (Research - C1)
ISSN: 0302-9743
Keywords: Secret sharing schemes, Cheating in secret sharing, Perfect secrecy
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© 2000 Springer Verlag. The published version of this article can be accessed via Springer Link. Use hypertext links above.

Date Deposited: 28 Sep 2006
FoR Codes: 08 INFORMATION AND COMPUTING SCIENCES > 0806 Information Systems > 080609 Information Systems Management @ 0%
01 MATHEMATICAL SCIENCES > 0101 Pure Mathematics > 010101 Algebra and Number Theory @ 0%
08 INFORMATION AND COMPUTING SCIENCES > 0806 Information Systems > 080610 Information Systems Organisation @ 0%
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