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There is a need to quantify system properties methodically. Dependability and security models have evolved nearly independently. Therefore, it is crucial to develop a classification of dependability and security models which can meet the requirement of professionals in both fault-tolerant computing and security community. In this paper, we present a new classification of dependability and security...
In this work, we address the performance problems that arise when unicast security protocols IPSEC and SSL are applied for securing the end-to-end communication in hybrid satellite networks. Satellite networks use TCP and HTTP performance-enhancing proxy servers to overcome the adverse effect of the large delay-bandwidth product of the satellite channel. However, the proxy servers cannot function...
We present an architecture for self-configuration of network entities for QoS and Security, based on the health of the network. In the architecture, we firstly present a novel data collection mechanism that integrates various network inputs such as flow data, packet data and SNMP values. Secondly we present our analysis of these inputs based on QoS and Security aspects and discuss analysis mechanisms...
In this paper, we describe an efficient authentication protocol for group communication in hybrid wireless networks with a satellite overlay. The proposed protocol uses a new class of lightweight, symmetric-key certificates called TESLA certificate. The certificates bind the identities of the senders to the anchor elements of their key chains; messages from the senders are authenticated by MACs computed...
In this paper we investigate a hybrid network topology that is suitable for supporting interplanetary' communications. We define an architecture comprised of a network of sensor nodes on a remote planetary surface, connected to a hybrid terrestrial network of wired and wireless LANs through a series of satellite relays. All the nodes in the network are IP-addressable and support public and symmetric...
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