Welcome to the resource topic for 2005/376
Title:
Representing small identically self-dual matroids by self-dual codes
Authors: Carles Padro, Ignacio Gracia
Abstract:The matroid associated to a linear code is the representable matroid that is defined by the columns of any generator matrix. The matroid associated to a self-dual code is identically self-dual, but it is not known whether every identically self-dual representable matroid can be represented by a self-dual code.
This open problem was proposed by Cramer et al (“On Codes, Matroids and Secure Multi-Party Computation from Linear Secret Sharing Schemes”, Crypto 2005), who proved it to be equivalent to an open problem on the complexity of multiplicative linear secret sharing schemes.
Some contributions to its solution are given in this paper. A new family of identically self-dual matroids that can be represented by self-dual codes is presented. Besides, we prove that every identically self-dual matroid on at most eight points is representable by a self-dual code.
ePrint: https://eprint.iacr.org/2005/376
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