Constant-round auction with insulated bidders

In this study, we present a constant-round auction scheme via a commitment scheme and an integer comparison protocol. The time cost is comparable compared to DGK [3] and Fischlin [9] protocols which are secure against semi-honest adversary, but the round complexity and communication overhead are much lower than DGK and Fischlin, even strain [1]. Furthermore, future studies are required to make the scheme secure by using ZKP against malicious adversaries.