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Journal of Information Science and Engineering, Vol. 22 No. 6, pp. 1505-1518 (November 2006)

An Efficient Sealed-Bid Auction Protocol with Two Servers

Sang Uk Shin
 Division of Electronic, Computer and Telecommunication Engineering
Pukyong National University
Busan, 608-737, Korea
E-mail: shinsu@pknu.ac.kr

We propose an efficient and secure sealed-bid auction protocol with two servers, a third party A and a seller S. A server A is not a trusted third party, but is assumed not to collude with a server S. Barring collusion between A and S, neither party gains any information about the bids, and moreover, the outcome of the auction will be correct. Moreover, the proposed auction protocol has a very small computational complexity and a similar communication overhead compared with Naor et al.¡¦s scheme. Especially since a computation and communication overhead of a bidder are very efficient than Naor et al.¡¦s scheme, the proposed scheme is more suitable to lightweight devices such as PDA, mobile phone, etc.

Keywords: auction, sealed-bid, cryptographic protocol, two-party computation, Goldwasser- Micali encryption

Full Text (¥þ¤åÀÉ) Retrieve PDF document (200611_12.pdf)

Received February 6, 2004; revised July 8 & December 16, 2004 & September 26, 2005; accepted May 10, 2006.
Communicated by Shiuhpyng Shieh.