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Secure secret sharing in the cloud

conference contribution
posted on 2017-01-01, 00:00 authored by C C Chang, Chang-Tsun LiChang-Tsun Li
In this paper, we show how a dealer with limited resources is possible to share the secrets to players via an untrusted cloud server without compromising the privacy of the secrets. This scheme permits a batch of two secret messages to be shared to two players in such a way that the secrets are reconstructable if and only if two of them collaborate. An individual share reveals absolutely no information about the secrets to the player. The secret messages are obfuscated by encryption and thus give no information to the cloud server. Furthermore, the scheme is compatible with the Paillier cryptosystem and other cryptosystems of the same type. In light of the recent developments in privacy-preserving watermarking technology, we further model the proposed scheme as a variant of reversible watermarking in the encrypted doma4in.

History

Event

IEEE Computer Society. Conference (2017 : Taichung, Taiwan)

Series

IEEE Computer Society Conference

Pagination

358 - 361

Publisher

Institute of Electrical and Electronics Engineers

Location

Taichung, Taiwan

Place of publication

Piscataway, N.J.

Start date

2017-12-11

End date

2017-12-13

ISBN-13

9781538629369

Language

eng

Publication classification

E1.1 Full written paper - refereed

Copyright notice

2017, IEEE

Editor/Contributor(s)

[Unknown]

Title of proceedings

ISM 2017 : Proceedings of the 2017 IEEE International Symposium on Multimedia