Risk assessment for migrating workflow based on danger theory

The protection for mobile agent is a problem in the study of migrating workflow system. In this paper, we propose a new approach to protect mobile agent in another perspective. We protect mobile agents against the threats from maclious hosts by implementing risk assessment. The system uses the danger signal trigger mechanism to deal with threats. And the system gets the risk value by implementing risk assessment we proposed before mobile agent resides on a host. The result of experiment shows that our method is feasibility and accuracy.