Summary
|
For Full-Text PDF, please login, if you are a member of IEICE, or go to Pay Per View on menu list, if you are a nonmember of IEICE. |
|
Undeniable and Unpretendable Signatures Le Trieu PHONG Kaoru KUROSAWA Wakaha OGATA Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E95-A No.1 pp.138-150 Publication Date: 2012/01/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E95.A.138 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Authentication Keyword: anonymity, undeniable signatures, selective/all conversion, unpretendable signatures, anonymous auction, Full Text: PDF(406.7KB)>>
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. | ||||||||||
| ||||||||||