A general secure electronic auction protocol

Electronic auction is one of the basic businesses in electronic commerce. The protection of bidder privacy and the prevention of bidder default are the key problems need to be urgently solved. At the same time, the study of general auction protocol, which can be applied in any type of auction, is still very weak. Aiming at these shortcomings, This work designed a new secure auction protocol in the case of protecting bidders. Using the digital signature and encryption technology, this proposed protocol not only guarantees the non-repudiation and anonymity of bidders, but also ensures that nobody can manipulate other bidders in the whole auction. And also, this protocol achieves the valuable property of bid secrecy and verifiability. Even when malicious bidders collude with auctioneers, it is still secure and valid. Compared with previous works, this protocol provides better generality, and is suitable for large-scale distributed auction.