Security architecture for satellite services over cryptographically heterogeneous networks

The rapid growth in the demand for Internet services and many new applications has driven the development of satellite, which are the preferred delivery mechanism due to its wide area coverage, multicasting capacity and speed to deliver affordable future services. However, security has been one of the barriers for satellite services, especially for domains spanning over cryptographically heterogeneous networks. In this paper, a scalable and adaptable security architecture is specified to protect satellite services. Two major issues in the proposed security architecture, key management and policy provisioning, are presented and analyzed. And three scenarios, mobile network, fixed network and Delay Tolerant Network (DTN), are presented, with details on characteristics and security features.