Secure communication based on network coding
Yuansheng Tang · Journal of Communications · 2010
Network coding allowed intermediate nodes to mix information from different data flows.Building on this observation,two secure communication protocols were proposed for communication systems on wiretap multicast net-works.The first approach d on linear network coding completely and enabled the multicast networks to have perfect se-crecy without keys,which was the essential distinction from cryptographic methods.Another way of achieving security over wiretap multicast network via encrypting part of source message packets.Thus,new secure communication schemes indicate that security is an intrinsic property of network coding.Furthermore,comparing with other approaches,no net-work capacity is lost by our methods.