An Adaptivity-Enhanced Multipath Routing Method for Secure Dispersed Data Transfer Method in Ad Hoc Networks with Varying Node Density

In ad hoc networks utilizing wireless multi-hop communication functions, two or more nodes can communicate with each other through intermediate relaying nodes. However, ad hoc networks are susceptible to various attacks resulting from wireless multi-hop communication functions. To counter attacks, a secure dispersed data transfer method with a secret sharing scheme has been proposed. This method requires multiple paths to send multiple encrypted data packets. Characteristics of multiple paths in ad hoc networks are highly influenced by node density. In this paper, we propose a new combination method of the node-disjoint and the shared elements-accepted multipath routing methods to compensate for the two methods´ weakness with varying node density. We also implemented our proposed method on a simulator to evaluate it. We confirmed that our proposed method can work well in cases where networks have low density.