Application of Network Coding in Wiretap Network
Cao Zhanghu · 2013
Focusing on the issue of secure communication on a wiretap network where a wiretapper can eavesdrop a limited number of links,we proposed a secure communication scheme based on linear network coding.The key idea of our scheme is to combine the ability of network coding that allows intermediate nodes to mix information from different data flows with one time pad.Further,the presented scheme achieves secure communication without employing a secrecy channel and the utilization of network capacity is up to n-1/n.Moreover,we showed that if the efficient domain is large enough,the probability of achieving secure communication with random linear network coding tends to 1 in our scheme.