Authentication Server Function

Authentication Server Function (AUSF)

Schedule a Demo

Authentication Server Function

Part of Alepo’s Converged Core offerings, Alepo’s Authentication Server Function (AUSF) is a 3GPP Release 16 compliant network function. Crucial for secured network access, the AUSF is responsible for the security procedure for SIM authentication using the 5G-AKA authentication method.

5g  5gc  5g core  ausf

What is Authentication Server Function (AUSF) in 5g ?

Authentication Server Function performs 5G authentication and Key Agreement method 5G AKA. AUSF also offers additional support to handle concealed or privacy-protected subscription identifiers.

What function does AUSF perform in 5G?

5G AUSF receives authentication requests from the Access and Mobility Management Function (AMF) and interacts with Unified Data Management (UDM) to obtain authentication vectors for processing 5G AKA authentication, and validates network responses to determine whether or not the authentication was successful. It also handles re-synchronization procedures as a part of 5G AKA authentication.

Network Function: 5G AUSF

5G Authentication

Seamless Authentication Support

Alepo AUSF provides authentication support for 5G services. In the 5G network, it performs various actions:

  • Handles routing based on SUCI and SUPI
  • Manages authentication confirmation timeout
  • Supports re-synchronization procedure
  • Maintains session states in an external centralized database for stateless operations

Microservice-Based Architecture

Alepo’s Authentication Server Function employs a microservice-based architecture in line with 5G Service-Based Architecture (SBA). Alepo Authentication Server Function supports:

  • REST-based APIs in compliance with open API 3.0 standards
  • An open, agnostic, and multi-vendor environment
  • Continuous integration and continuous deployment, reducing time-to-market
3GPP 5G AUSF
Authentication Server Function

Flexible Deployment Models

Alepo’s 5G Authentication Server Function (AUSF in 5g) supports containerized deployments as well as virtual machine-based (VM-based) deployment models to meet diverse business requirements. Features include:

  • Can be deployed in public, private, and hybrid cloud environments (with support for multiple cloud systems: Redhat Openshift, AWS, Windriver, MS Azure, and more)
  • Supports PaaS-agnostic deployments

Related Resources

Case Study

South American CSP completes country’s first 5G network deployment

Alepo’s digital transformation provided a single unified platform for the operator’s LTE, 5G, IPTV, and fixed broadband services. It introduced automations to streamline processes, digitized support, lowered OPEX, and more.
Flyer

Swiftly implement 5G with Alepo's 3GPP cloud-native 5G Core solution

With a secure, flexible, and scalable architectural framework, Alepo’s 5GC solution provides key 5GC components to enable 5G use cases. Download the flyer to know how the solution simplifies the transition to 5G.

Webinar

Subscriber Data Management (SDM) For 5G Core

SDM facilitates a swift and easy transition to 5G. At the heart of 5GC, it supports 4G/5G interworking while enabling high-value next-gen use cases. In this webinar, Alepo’s experts discuss the 5GC market, the role of SDM in 5G ROI, and more.

Collateral

Easily transition to 5G with Alepo’s converged Subscriber Data Management solution

The Role of Private 5G in IR4

Alepo’s Converged Policy Control Function (PCF+PCRF)

The Evolution of AAA Infrastructure For NFVi Compliance

Optimize performance of fixed and mobile networks with Alepo AAA

A leading South Asian MNO implements Alepo’s Virtualized AAA

Read More

Blog Posts

6G: what to expect and when?

Jan 5, 2023

5G will soon become mainstream, paving the way for 6G. This blog discusses 6G in detail, including what to expect, when it will be launched, and how it differs from 5G.

Read More

Press Releases

Read More
Demo, Quote

Subscribe to the Alepo Newsletter