A Dynamic Mix Method for Wireless Ad Hoc Networks

A wireless ad hoc network is subject to various security attacks including traffic analysis. In this paper, we explore the approach of preventing traffic analysis through hiding the source and destination of packets. We argue that Chaum’s mix method [1] and proposed security schemas (IPSec [2], Onion Routing [3], Non Disclosure Method [4]) cannot adapt to the dynamic changes of topology in wireless ad hoc network and may cause network performance degradation. A dynamic mix method is proposed which attempts to improve the network performance while still hiding the source and destination of packets.