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Secure secret sharing in the cloud
conference contributionposted 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.
EventIEEE Computer Society. Conference (2017 : Taichung, Taiwan)
SeriesIEEE Computer Society Conference
Pagination358 - 361
PublisherInstitute of Electrical and Electronics Engineers
Place of publicationPiscataway, N.J.
Publication classificationE1.1 Full written paper - refereed
Copyright notice2017, IEEE
Title of proceedingsISM 2017 : Proceedings of the 2017 IEEE International Symposium on Multimedia
CategoriesNo categories selected