爱立信wp-5g-security.pdfVIP

ericsson White paper Uen 284 23-3269 | June 2015 5G security SCENARIOS AND SOLUTIONS Security and privacy are cornerstones for 5G to become a platform for the Networked Society. Cellular systems pioneered the creation of security solutions for public communication, providing a vast, trustworthy ecosystem – 5G will drive new requirements due to new business and trust models, new service delivery models, an evolved threat landscape and an increased concern for privacy. Introduction 5G systems are the next step in the evolution of mobile communication. As a fundamental enabler of the Networked Society, 5G networks need to provide capabilities not only for voice and data communication as we know it today, but also for new use cases and new industries, and for a multitude of devices and applications to connect society at large. Research and standardization have started in many technology areas of fundamental importance for 5G (such as cloud and the Internet of Things). These efforts have achieved various degrees of maturity, although the definition of 5G mobile networks has not yet reached standardization phase in the 3GPP. The evolution of LTE is a vital part of 5G. However, 5G will include the evolution of all parts of the network, such as core and management systems, as well as all protocol layers ranging from radio to applications. As a result, security is potentially affected everywhere. Current 4G cellular systems provide a high level of security and trustworthiness for users and operators. Second generation (GSM) systems were the first to have standardized, built-in security functions, which then evolved through 3G and now 4G networks. Although the security designs of previous and current systems have provided a platform of undisputed socioeconomic success, with the number of global mobile subscriptions exceeding 7 billion in 2014 [1], 5G introduces many new aspects that require the following important questions to be addressed: