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Presentation
Formal Definition and Construction of Nominative Signature
in H. Imai, S. Qing & G. Wang In International Conference on Information and Communications Security, 12-15 December, Zhengzhou, China. Lecture notes in computer science
  • Dennis Y.W. Liu, City University of Hong Kong
  • Duncan S Wong, City University of Hong Kong
  • Xinyi Huang, University of Wollongong
  • Guilin Wang, University of Birmingham
  • Qiong Huang, City University of Hong Kong
  • Yi Mu, University of Wollongong
  • Willy Susilo, University of Wollongong
Document Type
Conference Paper
Publication Date
1-1-2007
Abstract

Since the introduction of nominative signature in 1996, there are three problems that have still not been solved. First, there is no convincing application proposed; second, there is no formal security model available; and third, there is no proven secure scheme constructed, given that all the previous schemes have already been found flawed. In this paper, we give positive answers to these problems. First, we illustrate that nominative signature is a better tool for building user certification systems which were originally implemented using universal designated verifier signature. Second, we propose a formal definition and adversarial model for nominative signature. Third, we show that Chaum's undeniable signature can be transformed to an efficient nominative signature by simply using a standard signature. The security of our transformation can be proven under the standard number-theoretic assumption

RIS ID
21316
Citation Information
Dennis Y.W. Liu, Duncan S Wong, Xinyi Huang, Guilin Wang, et al.. "Formal Definition and Construction of Nominative Signature" in H. Imai, S. Qing & G. Wang In International Conference on Information and Communications Security, 12-15 December, Zhengzhou, China. Lecture notes in computer science Vol. 4861 (2007) p. 57 - 68
Available at: http://works.bepress.com/wsusilo/49/