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Security and Communication Networks
Volume 2018 (2018), Article ID 9845426, 8 pages
Research Article

Cloud Based Data Protection in Anonymously Controlled SDN

1Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science & Technology, Nanjing, China
2State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China
3Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan

Correspondence should be addressed to Chin-Feng Lai; gro.eeei@nofnic

Received 28 July 2017; Accepted 3 January 2018; Published 29 January 2018

Academic Editor: Iván García-Magariño

Copyright © 2018 Jian Shen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Nowadays, Software Defined Network (SDN) develops rapidly for its novel structure which separates the control plane and the data plane of network devices. Many researchers devoted themselves to the study of such a special network. However, some limitations restrict the development of SDN. On the one hand, the single controller in the conventional model bears all threats, and the corruption of it will result in network paralysis. On the other hand, the data will be increasing more in SDN switches in the data plane, while the storage space of these switches is limited. In order to solve the mentioned issues, we propose two corresponding protocols in this paper. Specifically, one is an anonymous protocol in the control plane, and the other is a verifiable outsourcing protocol in the data plane. The evaluation indicates that our protocol is correct, secure, and efficient.