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Revisiting and extending the AONT-RS scheme: a robust computationally secure secret sharing scheme

Chen, Liqun, Laing, TM and Martin, KM (2017) Revisiting and extending the AONT-RS scheme: a robust computationally secure secret sharing scheme In: 9th International Conference on Cryptology and Information Security. AFRICACRYPT 2017, 2017-05-24 - 2017-05-26, Dakar, Senegal.

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Abstract

In 2010, Resch and Plank proposed a computationally secure secret sharing scheme, called AONT-RS. We present a generalisation of their scheme and discuss two ways in which information is leaked if used to distribute small ciphertexts. We discuss how to prevent such leak- age and provide a proof of computational privacy in the random oracle model. Next, we extend the scheme to be robust and prove the robust AONT-RS achieves computational privacy in the random oracle model and computational recoverability under standard assumptions. Finally, we compare the security, share size and complexity of the AONT-RS scheme with Krawczyk's SSMS scheme.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Computer Science
Divisions : Faculty of Engineering and Physical Sciences > Computing Science
Authors :
NameEmailORCID
Chen, Liqunliqun.chen@surrey.ac.ukUNSPECIFIED
Laing, TMUNSPECIFIEDUNSPECIFIED
Martin, KMUNSPECIFIEDUNSPECIFIED
Date : 20 April 2017
Identification Number : 10.1007/978-3-319-57339-7_3
Copyright Disclaimer : The final publication is available at link.springer.com
Contributors :
ContributionNameEmailORCID
UNSPECIFIEDSpringer, UNSPECIFIEDUNSPECIFIED
Depositing User : Symplectic Elements
Date Deposited : 04 Apr 2017 12:47
Last Modified : 07 Jul 2017 08:53
URI: http://epubs.surrey.ac.uk/id/eprint/813930

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