01-07-2010, 04:38 PM
Dynamic Routing with Security Considerations
Modules:
1. Network Module
2. Dynamic Routing
3. Randomization Process
4. Routing Table Maintenance
5. Load on Throughput
Module Description:
1. Network Module
Client-server computing or networking is a distributed application architecture that partitions tasks or workloads between service providers (servers) and service requesters, called clients. Often clients and servers operate over a computer network on separate hardware. A server machine is a high-performance host that is running one or more server programs which share its resources with clients. A client also shares any of its resources; Clients therefore initiate communication sessions with servers which await (listen to) incoming requests.
2. Dynamic Routing
To propose a distance-vector based algorithm for dynamic routing to improve the security of data transmission. We propose to rely on existing distance information exchanged among neighboring nodes (referred to as routers as well in this paper) for the seeking of routing paths. In many distance-vector-based implementations, e.g., those based on RIP, each node maintains a routing table in which each entry is associated with a tuple, and Next hop denote some unique destination node, an estimated minimal cost to send a packet to t, and the next node along the minimal-cost path to the destination node, respectively.
3. Randomization Process
The delivery of a packet with the destination at a node. In order to minimize the probability that packets are eavesdropped over a specific link, a randomization process for packet deliveries, in this process, the previous next-hop for the source node s is identified in the first step of the process. Then, the process randomly picks up a neighboring node as the next hop for the current packet transmission. The exclusion for the next hop selection avoids transmitting two consecutive packets in the same link, and the randomized pickup prevents attackers from easily predicting routing paths for the coming transmitted packets.
4. Routing Table Maintenance
In the network be given a routing table and a page link table. We assume that the page link table of each node is constructed by an existing page link discovery protocol, such as the Hello protocol in. On the other hand, the construction and maintenance of routing tables are revised based on the well-known Bellman-Ford algorithm.
5. Load on Throughput
Investigate the effect of traffic load on throughput for our proposed DDRA; the traffic is also generated based on variable-bit-rate applications such as file transfers over Transmission Control Protocol (TCP). The average packet size is 1,000 bytes, and source-destination pairs are chosen randomly with uniform probabilities.
