SPMH: A Solution to the Problem of Malicious Hosts

In this paper, a solution to the Problem ofMalicious Hosts, named SPMH, is suggested. At first, Mobile AgentBlackbox Construction Method based on Loureiro's Protocol (MABCM-LP) issuggested to convert a mobile agent into a Mobile Agent Blackbox (MAB)which makes the mobile agent difficult to be understood and tampered bymalicious hosts. At the same time, a Protocol Tracing theInputs/outputs and Results (PTIR) is developed to trace the mobileagent running at a host, which can be used to detect and prove theattacks by malicious hosts. It is proved that this solution is secure,correct, and robust. It is found firstly that the detection method andthe prevention method are complementary to each other, and this is thefirst solution that integrated both of these two methods too.