Cost-Effective Authentic and Anonymous Data Sharing with Forward Security

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

88 Scopus Citations
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Author(s)

  • Xinyi Huang
  • Joseph K. Liu
  • Shaohua Tang
  • Yang Xiang
  • Kaitai Liang
  • And 2 others
  • Li Xu
  • Jianying Zhou

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)971-983
Journal / PublicationIEEE Transactions on Computers
Volume64
Issue number4
Online published3 Apr 2014
Publication statusPublished - 1 Apr 2015

Abstract

Data sharing has never been easier with the advances of cloud computing, and an accurate analysis on the shared data provides an array of benefits to both the society and individuals. Data sharing with a large number of participants must take into account several issues, including efficiency, data integrity and privacy of data owner. Ring signature is a promising candidate to construct an anonymous and authentic data sharing system. It allows a data owner to anonymously authenticate his data which can be put into the cloud for storage or analysis purpose. Yet the costly certificate verification in the traditional public key infrastructure (PKI) setting becomes a bottleneck for this solution to be scalable. Identity-based (ID-based) ring signature, which eliminates the process of certificate verification, can be used instead. In this paper, we further enhance the security of ID-based ring signature by providing forward security: If a secret key of any user has been compromised, all previous generated signatures that include this user still remain valid. This property is especially important to any large scale data sharing system, as it is impossible to ask all data owners to re-authenticate their data even if a secret key of one single user has been compromised. We provide a concrete and efficient instantiation of our scheme, prove its security and provide an implementation to show its practicality.

Research Area(s)

  • Authentication, data sharing, cloud computing, forward security, smart grid, RING SIGNATURE SCHEME, AD-HOC GROUPS, RANDOM ORACLES, CLOUD, CONSTRUCTION, PAIRINGS

Citation Format(s)

Cost-Effective Authentic and Anonymous Data Sharing with Forward Security. / Huang, Xinyi; Liu, Joseph K.; Tang, Shaohua; Xiang, Yang; Liang, Kaitai; Xu, Li; Zhou, Jianying.

In: IEEE Transactions on Computers, Vol. 64, No. 4, 01.04.2015, p. 971-983.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review