A New Auction with Convertible Cryptosystem and Mutual Authentication

Electronic auction is popular due to rapid development of Internet technology. However, the identity and privacy of bidders are facing an insecure environment. Hence, a secure trade-off environment which can protect the privacy of bidders is necessary for auction. However, it never emerges as a reasonable and complete solution for the auction center to control the bidder’s privacy from contemporary research. The proposed protocol focuses on the English auction method that can reach mutual authentication between the bidders and auction center by Diffie-Hellman key exchange and can protect the security of message by applying convertible authentication cryptosystem during the transmission.