An anonymous electronic bidding protocol Based on a new convertible group signature scheme-on the importance of hiding the winner’s identity against bid-rigging-

Kouichi Sakurai, Shingo Miyazaki

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

49 被引用数 (Scopus)

抄録

We propose an electronic auction scheme satisfying that (i) a group of colluding bidders cannot control the contract price arbitrarily, (ii) all prices of bidders except the winner are never revealed to anyone (even to the auction house), and (iii) only the auction house recognizes the winner’s identity, while the other losers can verify the fact that the winner belongs to the advanced registered group. Our scheme does not rely on an anonymous channel nor a trusted third center. Our system can be implemented only with the public-key technology and cryptographic hash functions and all bidders can verify the validity of process for determining a winner via a public bulletin board. To achieve stronger anonymity of the winner, we develop a new variant of convertible undeniable group signatures. In our designed signature scheme, the convertibility has two phases: one is convertible from online to off-line in verification-stage, and the other is convertible from individual to group.

本文言語英語
ホスト出版物のタイトルInformation Security and Privacy - 5th Australasian Conference, ACISP 2000, Proceedings
編集者Ed Dawson, Andrew Clark, Colin Boyd
出版社Springer Verlag
ページ385-399
ページ数15
ISBN(印刷版)3540677429
DOI
出版ステータス出版済み - 2000
イベント5th Australasian Conference on Information Security and Privacy, ACISP 2000 - Brisbane, オーストラリア
継続期間: 7月 10 20007月 12 2000

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
1841
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他5th Australasian Conference on Information Security and Privacy, ACISP 2000
国/地域オーストラリア
CityBrisbane
Period7/10/007/12/00

!!!All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータサイエンス一般

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