ABSTRACT
Recently, Jaiswal et al. proposed a protocol to improve the multi-agent negotiation test-bed by Collins et al. However, it is shown that the protocol still has some weak points. In this paper we suggested a modified algorithm that can protect possible attacks: such as replay data attack and DOS (denial-of-service) attack, anonymity disclosure, collision between customers and a certain supplier. So market uses ticket token to restrict download, generates random number for avoiding expose anonymity, uses hash computation to reduce DOS attack and avoid replay data attack, and constructs interpolating polynomial for avoiding collision.
