An electronic public engineering project bidding protocol via a subliminal channel

Abstract

Due to the rapid development of the Internet, many Internet applications have recently become very widely used. Internet security has therefore become an important issue. This paper proposes an electronic public engineering project bidding protocol via a subliminal channel. In the proposed scheme, the subliminal channel can protect a bidder’s interests, while allowing an official agent to make a fair arbitration. The proposed scheme is non-repudiable, untraceable and offers fair arbitration of public engineering projects, but is also resistant to replay, forgery and insider attacks, thus enhancing both security and fairness.