Efficient and secure identity-based signature scheme

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

7 Scopus Citations
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Author(s)

  • Ke Gu
  • Wei-Jia Jia
  • Chun-Ling Jiang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1350-1360
Journal / PublicationRuan Jian Xue Bao/Journal of Software
Volume22
Issue number6
Publication statusPublished - Jun 2011

Abstract

Paterson, et al. have studied identity-based signature scheme based on Waters' signature scheme in a standard model, which has proved to have a security reduction to CDHP assumption, but has low computational efficiency. Although Li-Jiang, et al. improves Paterson's scheme, Li-Jiang's scheme has low online computational efficiency. This paper shows a more efficient identity-based signature scheme based on Paterson's scheme in standard model. The new scheme improves computational efficiency by changing multiplicative operation to addition operation and pre-computing bilinear pairing operation. The scheme comparing with Paterson's scheme decreases the number of multiplicative operation and the number of bilinear pairing operation of verifier. The scheme comparing with Li-Jiang's scheme decreases the on-line computation of signer and verifier and the output parameters of system. Also, the scheme has proved to have a security reduction to CDHP assumption and the existential unforgeability under an adaptive chosen message attack. Comparing with other identity-based signature schemes in standard model, the new scheme is more efficient. ©2011 ISCAS.

Research Area(s)

  • CDHP, Computational efficiency, Provable security, Signature, Standard model

Citation Format(s)

Efficient and secure identity-based signature scheme. / Gu, Ke; Jia, Wei-Jia; Jiang, Chun-Ling.

In: Ruan Jian Xue Bao/Journal of Software, Vol. 22, No. 6, 06.2011, p. 1350-1360.

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