A Secure Network Coding Based on Broadcast Encryption in SDN

Abstract

By allowing intermediate nodes to encode the received packets before sending them out, network coding improves the capacity and robustness of multicast applications. But it is vulnerable to the pollution attacks. Some signature schemes were proposed to thwart such attacks, but most of them need to be homomorphic that the keys cannot be generated and managed easily. In this paper, we propose a novel fast and secure switch network coding multicast (SSNC) on the software defined networks (SDN). In our scheme, the complicated secure multicast management was separated from the fast data transmission based on the SDN. Multiple multicasts will be aggregated to one multicast group according to the requirements of services and the network status. Then, the controller will route aggregated multicast group with network coding; only the trusted switch will be allowed to join the network coding by using broadcast encryption. The proposed scheme can use the traditional cryptography without homomorphy, which greatly reduces the complexity of the computation and improves the efficiency of transmission.

SeC‐SDWSN: Secure cluster‐based SDWSN environment for QoS guaranteed routing in three‐tier architecture

“…Trust value computation which is a significant process is accomplished with the aid of trust evaluator, trust database, route resolve, and route setup modules in each node. On the other hand, security and QoS are improved in SDN through controller scheduling, secure routing, and data security . The controller scheduling scheme aims to secure controllers through dynamic scheduling based on heuristic approach.…”