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This paper deals with the very challenging task of finding a security architecture for mobile ad hoc networks. These networks pose difficulties beyond normal networking because of their special properties. They are dynamic in their topology, lack a fix infrastructure polo shirts shop and the devices that are involved are usually very constrained in terms of processing and battery power. Although the area of ad hoc networks have been around for a long time cheap jeans shop most efforts have been directed towards finding secure routing protocols. The area of security in ad hoc networks is relatively new and there exist few if any real implementations that can be found on the market ugg boots 2010 today.Authentication is a key technology securing the network. However, because PKI with central cheap polo shirts is hard to deploy in MANET, conventional authentication mechanism isn't practical. This thesis present and evaluate an architecture serving to secure MANET communication. We divide network into domains to implement a discount wedding prom dresses distributed CA via threshold encryption and secret scattering. This architecture solves authority and access control effectively with a multi-level security model which enables the match between complexity and functions of mobile ends: supporting different type of keys (symmetric, asymmetric public key) and certificates.
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