Mitigate Content Poisoning Attack in NDN by Namespace Authorization

The Named Data Networking (NDN) immunes to most of the attacks which exist in today’s Internet. However, this newborn network architecture may still subject to Distributed Denial of Service (DDOS) attacks if less evaluation is paid. In this paper, we firstly give a survey of the state of art works on the mitigations of the Content Poisoning Attack (CPA) in NDN and discuss their limitations as well. After this, we give out our mitigation and the results from simulations show that with the implementation of our mitigation, the Interest Satisfaction Rate (ISR) of all Consumers maintains a highly acceptable rate even when network is under CPA.