A (t, n) Threshold Secret Sharing System with Efficient Identification of Cheaters

Authors

  • Iuon Chang Lin
  • Chin Chen Chang

Keywords:

Cheater identification, information security, secret sharing system

Abstract

In this paper, we propose a new (t, n) threshold scheme. The scheme allows a user to divide portions of a secret among the designated group. Any t or more participants from a designated group of n members can cooperate to reconstruct the secret while (t-1) or less participants can not. Furthermore, the scheme provides an efficient mechanism to detect and identify cheaters. From the security analysis, we conclude that any participant does not have the ability to deceive other participants to obtain their portion of the secret. Therefore, this scheme is very practical for a broad spectrum of applications.

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Published

2012-02-06

How to Cite

Lin, I. C., & Chang, C. C. (2012). A (t, n) Threshold Secret Sharing System with Efficient Identification of Cheaters. Computing and Informatics, 24(5), 529–541. Retrieved from http://147.213.75.17/ojs/index.php/cai/article/view/398