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Enterprise Security Magazine | Wednesday, September 27, 2023
5G is the upcoming wireless network technology that replaces 4G (LTE). It is intended to link people and devices at high rates with negligible latency.
Fremont, CA: Encryption, privacy protection, authentication and authorization, network slicing, and network equipment security assurance are critical 5G security approaches and technologies. Let's take a closer look at them.
Encryption
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Encryption prevents eavesdropping, interception, and manipulation of user data and network traffic. Robust encryption methods like AES, ZUC, SNOW 3G, and HMAC-SHA-256 are used in 5G. One of the encryption characteristics is the separation of security keys between core network components. Fast synchronization of security contexts between the access network (base stations) and the core network is also provided.
Privacy Defence
Privacy is protected in 5G networks through encryption and other measures. These solutions efficiently protect against critical threats like IMSI/TMSI-catchers, which attackers routinely use to identify and monitor network subscribers. Mobile providers can use the Elliptic Curve Integrated Encryption Scheme technique to hide and routinely update a subscriber's temporary identification (TMSI). Operators can also identify bogus base stations, frequently the source of IMSI/TMSI catchers.
Authorization and Authentication
The Authentication and Key Agreement mechanism (5G AKA) is used for authentication and authorization in 5G. It has a robust authentication system to validate the identity of people, devices, and network objects. Unlike 4G, 5G enables pre-shared keys, certificates, tokens, and actual SIM cards. Mobile carriers may select the finest authentication credentials and procedures for their clients and IoT devices. Traditional SIM cards, for example, are suited for mobile phones, but digital certificates are preferable for virtual IoT devices equipped with eSIM.
Network Slicing
Network slicing allows you to create virtual networks for various services and applications. A subscribing corporation, for example, can utilize one network slice for high-priority personnel with access to corporate services and another for low-priority IoT warehouse sensors that transfer data to public cloud storage. Each network slice can be allocated its own set of security policies and protocols, assisting in the isolation and protection of data and services.
NESAS
The Network Equipment Security Assurance Scheme, often known as NESAS, assures the secure installation of telecom equipment mobile carriers use in their networks, including 5G. 3GPP and GSMA created NESAS to define security standards and procedures for successful infrastructure assessments. NESAS considers local and worldwide cybersecurity laws, such as the EU cybersecurity certification framework. Compliance with NESAS criteria is required of vendors and mobile carriers.
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