Publicly Verifiable Secure Electronic Auction

In the most of existing electronic auctions, the bidders' bids no longer remain confidential if the third parts collude. However, keeping the bids secret in any case is vital to the bidders because these evaluations may be their critical commercial secrets. This paper proposes a publicly verifiable secure electronic auction meeting such requirements. The only leakage is the selling price while the other bids and their relation keep confidential in any collusion. The scheme is more efficient than the recently proposed scheme due to Brandit.