Tree-like hierarchical model for distributed micro-security system

This paper presents a large-scale dynamic self-immune security architecture. In this architecture, a network is modeled as a hierarchy of administrators and hosts. We use a tree-like hierarchical model to guarantee security, scalability and availability of the system. We adopt a simple SSL-based authentication protocol to avoid unauthorized access to administrators, a group management mechanism for trust model, and two fault-tolerant schemes to address single point of failure of administrators.