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IEICE TRANSACTIONS on Fundamentals

Undeniable and Unpretendable Signatures

Le Trieu PHONG, Kaoru KUROSAWA, Wakaha OGATA

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Summary :

Undeniable signature, and unpretendable signature schemes have been studied independently. In this paper, efficient schemes which serve as both at the same time are presented. The schemes find their typical application in anonymous auction where the winner cannot deny her bid; nobody can pretend to be the winner; and the anonymity of all losers is preserved. The security of the schemes is proved in the common reference string model under discrete logarithm type assumptions.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.1 pp.138-150
Publication Date
2012/01/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E95.A.138
Type of Manuscript
Special Section PAPER (Special Section on Cryptography and Information Security)
Category
Authentication

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