A Comprehensive Survey on Core Technologies and Services for 5G Security: Taxonomies, Issues, and Solutions

Abstract

With the advancement of information and communication technologies, fifth-generation (5G) has become an emerging communication medium to support higher speed, lower latency, and massive connectivity to various devices by leveraging the evolution of 4G with the addition of new radio technology, service-based architecture, and cloud infrastructure. Nonetheless, the introduction of new technologies and advanced features in 5G communicationsgives rise to new security requirements and challenges. This paper presents a comprehensive survey of various threats and solutions toward ensuring 5G security and privacy. The recent development and existing schemes of 5G wireless security are offered based on the corresponding security services, including authentication, availability, data confidentiality, integrity, and non-repudiation. We will also discussthe different emerging technologies applied to 5G, such as Blockchain, software defined networking, artificial intelligence, cyber-physical system, mobile edge computing, device-to-device (D2D) communication, and Industry 4.0. Inspired by these security research and development activities in the emerging technologies, we present various applications and services of 5Gconsidering the security requirements and solutions. The challenges and future directions of 5G wireless security are finally summarized.