Security Awareness in Software-Defined Multi-Domain 5G Networks

• Main Authors: Jani Suomalainen, Kimmo Ahola, Mikko Majanen, Olli Mämmelä, Pekka Ruuska
• Format: Article
• Language: English
• Published: MDPI AG 2018-03-01
• Series: Future Internet
• Subjects: 5G; mobile network; security; monitoring; multi-domain; SDN
• Online Access: http://www.mdpi.com/1999-5903/10/3/27

Fifth generation (5G) technologies will boost the capacity and ease the management of mobile networks. Emerging virtualization and softwarization technologies enable more flexible customization of network services and facilitate cooperation between different actors. However, solutions are needed to enable users, operators, and service providers to gain an up-to-date awareness of the security and trustworthiness of 5G systems. We describe a novel framework and enablers for security monitoring, inferencing, and trust measuring. The framework leverages software-defined networking and big data technologies to customize monitoring for different applications. We present an approach for sharing security measurements across administrative domains. We describe scenarios where the correlation of multi-domain information improves the accuracy of security measures with respect to two threats: end-user location tracking and Internet of things (IoT) authentication storms. We explore the security characteristics of data flows in software networks dedicated to different applications with a mobile network testbed.