Cryptology ePrint Archive: Report 2009/450

On Hierarchical Threshold Secret Sharing

Ali Aydin Selcuk and Kerem Kaskaloglu and Ferruh Ozbudak

Abstract: Recently, two novel schemes have been proposed for hierarchical threshold secret sharing, one based on Birkoff interpolation and another based on bivariate Lagrange interpolation. In this short paper, we propose a much simpler solution for this problem.

Category / Keywords: Secret sharing, threshold cryptography, hierarchical access structures.

Publication Info: Submitted to the Journal of Cryptology

Date: received 13 Sep 2009, last revised 25 Sep 2009

Contact author: selcuk at cs bilkent edu tr

Available format(s): PDF | BibTeX Citation

Note: We received a number of comments on the previous version of this paper which pointed out some references we should have cited and also mentioned a misunderstanding we had. We integrated this data to our paper as a new final section.

Version: 20090925:111931 (All versions of this report)

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