دانلود رایگان مقاله انگلیسی اجرای امنیت مبتنی بر ریسک در شبکه نرم افزارمحور - الزویر 2018

عنوان فارسی
اجرای امنیت مبتنی بر ریسک در شبکه نرم افزارمحور
عنوان انگلیسی
Risk based Security Enforcement in Software Defined Network
صفحات مقاله فارسی
0
صفحات مقاله انگلیسی
28
سال انتشار
2018
نشریه
الزویر - Elsevier
فرمت مقاله انگلیسی
PDF
نوع مقاله
ISI
نوع نگارش
مقالات پژوهشی (تحقیقاتی)
رفرنس
دارد
پایگاه
اسکوپوس
کد محصول
E10194
رشته های مرتبط با این مقاله
مهندسی فناوری اطلاعات
گرایش های مرتبط با این مقاله
شبکه های کامپیوتری
مجله
کامپیوترها و امنیت - Computers & Security
دانشگاه
Indian Institute of Technology Bhubaneswar - India
کلمات کلیدی
شبکه نرم افزارمحور (SDN)، توابع کنترل شبکه (NF)، سیستم امتیاز دهی آسیب پذیری رایج (CVSS)، آسیب پذیری، افشا، تهدید، خطر
doi یا شناسه دیجیتال
https://doi.org/10.1016/j.cose.2018.07.010
چکیده

Abstract


Software Defined Network (SDN) paradigm provides intelligent and efficient management of different network control functions (NF) depending on changes in traffic behavior, service providers’ requirements and application context. However, the logical centralization of controllers’ functions opens up challenges towards enforcing security perimeter over the underlying network and the assets involved. In this paper, we propose a risk assessment model for pro-active secure flow control and routing of traffic in SDN. The proposed model determines threat value of different SDN entities by analyzing vulnerability and exposure with respect to Common Vulnerability Scoring System (CVSS). The risk of a given traffic is calculated as cumulative threat values of the SDN entities that guides the flow and routing control functions in generating secure flow rules for the forwarding switches. The efficacy of the proposed model is demonstrated through extensive case studies of an enterprise network.

نتیجه گیری

Conclusion


The Software Defined Network (SDN) paradigm might suffer from various security threats due to its inherent characteristics such as open user-control, ubiquitous execution of network functions and centralized control management. In this paper, a risk assessment model is proposed where the core component, i.e., the Risk Analyze function analyzes the risk of a specific traffic request based on the threat models of related SDN entities. Then, these risk values are communicated to flow and routing control function for generating secure flow rules with no or minimal risk. The proposed security solution enables a pro-active end-toend security assessment of the traffic requests and accordingly ensures a secure flow and routing process. The efficacy of our proposed functions has been evaluated through a case study of an enterprise network and the results have been reported. In future, the proposed security mechanism will be enhanced with appropriate sensitivity analysis to find out the potential sources of the vulnerabilities. In addition, the security functions will be verified with varying requirements and context.


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