[PDF][PDF] A generalization of Shamir's secret sharing scheme

GM Univerisity - International Journal of Algebra, 2015 - m-hikari.com
GM Univerisity
International Journal of Algebra, 2015m-hikari.com
A secret sharing scheme is a method of distributing a secret among a set of participants in a
such way such that certain subset of participants are qualified to compute the secret by
combining their shares. Shamir [1] used a polynomial f (x)=∑ t-1 i= 0 aixi over finite field GF
(q) to construct his scheme. In this paper we propose to construct a secret sharing scheme
by using a more general polynomial than Chun [4] and Shamir used. Our proposed
polynomial is of the form f (x)=∑ t-1 i= 0 ai (xi+ xqi) over a finite field GF (q). We use an …
A secret sharing scheme is a method of distributing a secret among a set of participants in a such way such that certain subset of participants are qualified to compute the secret by combining their shares. Shamir [1] used a polynomial f (x)=∑ t-1 i= 0 aixi over finite field GF (q) to construct his scheme. In this paper we propose to construct a secret sharing scheme by using a more general polynomial than Chun [4] and Shamir used. Our proposed polynomial is of the form f (x)=∑ t-1 i= 0 ai (xi+ xqi) over a finite field GF (q). We use an algebraic approach to reconstruct the secret. Some problems related to solving the system of linear equations generated by pulling the shares are investigated.
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