Earticle

초록

영어

This paper proposes a secure sealed-bid auction schemes which adopt threshold cryptosystem without a third party. In the previous proposed sealed-bid auction schemes, an auctioneer is responsible for opening bids. However, malicious auctioneers can conspire with malicious bidders by revealing all bidding prices before the bid opening stage for bidding optimal bidding price to win the auction. To prevent against this, we decide to eliminate auctioneer from opening phase and involve plural clerks to choose secret keys, and then clerks distribute public keys to each other. On the bid opening phase, the clerks can cooperate with each other to open the bids without an auctioneer by using Pedersen’s protocol and Lagrange interpolating polynomial. Hence, an auctioneer is only responsible for verifying user’s identification and checking whether bids are valid or not. Furthermore, for enhancing security in our schemes, we utilize a hardware framework entitled “Untraceable Decryptor” to make all bids pass through it when the bids are transferred to clerks.

목차

Abstract
 1. Introduction
 2. An Untraceable Decryptor
 3. The Proposed Auction Scheme without a Register Center
  3.1. The Initialization Phase
  3.2. The Registration Phase
  3.3. The Obtaining Bids Phase
  3.4. The Bidding Phase
  3.5. The Announcement Phase
 4. Analysis
  4.1. Requirements Analysis
  4.2. Efficiency Analysis
 5. Conclusion
 References

키워드

저자

• Wei-Chen Wu [ Computer Center, Hsin Sheng College of Medical Care and Management ] Corresponding Author
• Horng-Twu Liaw [ Department of Information Management, Shih Hsin University ]
• Chih-Ta Yen [ Department of Information Management, National Taiwan University of Science and Technology ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of u- and e- Service, Science and Technology

• 간기

  격월간

• pISSN

  2005-4246

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605