A new reverse auction agent system for m-commerce using mobile agents

In order to get the goods, a buyer must search for the items through several auction sites in Internet. When the auction starts, the buyer needs to connect to these auction sites frequently so that he can monitor the bid states and re-bid. In this paper, we propose an automated negotiation model between two participants, for m-commerce, using collaborative mobile agents called mobile reverse auction agent system (MoRAAS), which mediates between the buyer and the sellers and executes bidding asynchronously and autonomously. This reduces the network load and offers more intelligent bidding. A new double encryption key chain technique and a new RVAP protocol are proposed to achieve unconditional bid privacy. Every losing bidder can control the privacy of their own bids while no trust is needed. Computational cost of our RVAP protocol is reduced by avoiding the costly verifiable encryption technique.