MANET SECURITY USING ECDSA
Abstract
In secure nature of the wireless link and their dynamically changing topology, wireless
ad-hoc networks require a careful and security-oriented approach for designing communication protocols. One problem in multi-hop ad-hoc networks is to motivate network nodes to yield some of their constrained resources and to participate in forwarding the data packets of other nodes through the network. Solution for ad-hoc networks with fixed backbone, or intranet access networks, the secure charging protocol has been proposed. In this protocol, source and destination nodes are charged and the intermediate nodes receive a monetary reward for forwarding. The charging information is protected using digital signatures to establish authentication, integrity and non-repudiation for the charging information. Use of digital signatures within this charging protocol. Analysis includes the determination of appropriate key
sizes and the evaluation of different signature schemes for this particular application.
Focusing on the classical RSA scheme and the ECDSA scheme, which is based on
elliptic curve cryptography? Develop a speed-optimized implementation of the elliptic curve digital signature algorithm ( ECDSA) and integrated it into a prototype implementation o f the secure charging protocol. In order to enhance the portability and to allow easy reuse for other applications, designed our implementation such that it can easily replace the ECDSA routines of the open-source crypto library PDA platform, which is a typical device used in wireless ad-hoc networks.
Author
K.OMPRAKASH
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