5 FUTURE CHALLENGES IN NFV SECURITY Although many solutions have been proposed

5 future challenges in nfv security although many

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5. FUTURE CHALLENGES IN NFV SECURITY Although many solutions have been proposed to overcome the security challenges in NFV, many potential security challenges are still remaining. Some of the research challenges and future directions for NFV security are: 1) Compromised VNF: In a NFV network, hardware and software are likely to be provided by different vendors to prevent from large scale security failure. However, there will be in an increase in the likelihood of one or few services to be compromised. To detect compromised components
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International Journal of Research in Engineering and Applied Sciences (IJREAS) Vol. 7Issue 5, May - 2017 ISSN(O): 2249-3905, ISSN(P): 2349-6525 | Impact Factor: 7.196 International Journal of Research in Engineering & Applied Sciences Email:- [email protected], An open access scholarly, online, peer-reviewed, interdisciplinary, monthly, and fully refereed journals 139 and mitigate their impact remains a challenge is a challenge in NVF. 2) Distributed Denial-of-service attacks: Distributed Denial of service attacks (DDoS) can cause tremendous damage to NFV supported network. Hence it need to be handled properly. NFV provide new opportunity for TSPs to launch new defending strategy against DDoS attacks. How to utilize the flexibility of VNF to defend against DDoS attacks in the network is another challenge. 3) Trust management in NFV: NFV provides opportunities for various vendors to enter the networking infrastructure market by providing NFV compatible hardware and software. It will be common to have multiple vendors involved in a NFV supported network. However, how to manage the trust chain and evaluate the trustworthiness of products is another research challenge. Also how to adaptively configure VNFs by choosing software to minimize security risk of the network is another research topic. 6. CONCLUSIONS NFV reduces equipment costs and improves operational efficiency. However, security remains an obstacle to overcome for the rapid development of NFV. In this survey, we discussed the background of NFV and highlight the security issues related to NFV. A summary of NFV security challenges and corresponding solutions to address the security problems is presented. Some proposed security architectures for NFV are described to form secure NFV environments. Finally we present various use cases of NFV security and discussed future challenges of NFV. 7 . References [1] “NFV: An Introduction, Benefits, Enablers, Challenges & Call for Action,” NFV white paper; [2] B. Han, V. Gopalakrishnan, L. S. Ji, and S. J. Lee, “Network Function Virtualization: Challenges and Opportunities for Innovations,” IEEE Communications Magazine, vol. 53, no. 2, pp. 90–97, Feb. 2015. [3] D. Cotroneo, L. De Simone, A. K. Iannillo, A. Lanzaro, R. Natella, F. Jiang, and P. Wang, “Network Function Virtualization: Challenges and Directions for Reliability Assurance,” in ISSREW, Nov.
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