AFDB security protocol against colluded truncation attack in free roaming mobile agent environment

In the distributed computer environment Mobile agents plays big role by means of traveling between hosts and collecting data that is required for a particular operation on different hosts. During this process agent protection from malicious host and the data integrity are must be ensured to conform Quality of Service of the operation. In recent years so many of the security mechanisms are invented to secure the data that is collected by the agents during mobility. All the mechanisms concentrates to protect the data carried by the Agent and the data integrity can be checked only when the agent arrives at the source. If the agent is lost anywhere during mobility the entire data that is carried by the agent will be lost. In this paper we propose a new mechanism “ADDRESS FORWARD AND DATA BACKWARD (AFDB)” to protect the agent's data. This mechanism can also resist the colluded truncation attack in the free roaming mobile agents and identifies the malicious host which performs denial of service activity. Using this proposed mechanism we can get all the intermediate data even if the agent is lost during roaming.