A Batch Handoff Authentication and Key Agreement Method for Heterogeneous Networks

Abstract

The present invention provides a heterogeneous network-oriented batch handover authentication and key negotiation method, the main implementation steps are: system establishment and participant registration: users participating in the authentication complete registration in the LTE-A network to obtain their respective identities Information; B, access authentication: when a large number of users request access to the WLAN network at the same time, the discovery function module ANDSF is used to discover the target network WLAN, and the group leader (Leader) sends the complete group authentication message to the AAA server of the WLAN network to request identity certified. After the authentication is successful, the AAA server of the WLAN network returns an identity authentication response; C. If the authentication fails, the protocol is terminated and continues to execute. The method effectively implements batch authentication of users switching from the LTE-A network to the WLAN network, so the authentication efficiency is high, the signaling overhead is small, and the security is good.

Description

technical field [0001] The invention belongs to the technical field of heterogeneous networks integrated with LTE-A and WLAN, and in particular relates to a heterogeneous network-oriented batch handover authentication and key agreement method. Background technique [0002] In recent years, with the continuous popularization of mobile devices, users' demand for real-time and stable wireless networks has increased rapidly. They not only require basic communication services, but also hope to enjoy rich multimedia services such as online games and videos. With the advent of the 5G era, the new generation of wireless communication systems will integrate different radio access technologies to support secure and seamless handover of user equipment as well as applications and services with different quality of service (QoS) requirements. The integrated heterogeneous network is composed of nodes with different transmission power and coverage. High Power Node (HPN) covers a wide area,...

AI Technical Summary

Problems solved by technology

Due to the heterogeneous network architecture, the user has no clear access strategy for the mobile access gateway of the target access network. If each user independently uses the discovery function module ANDSF to request access gateway information, it will not only cause serious network congestion, but also cause serious network congestion. It will also consume a lot of network resources, and the computing overhead and communication overhead will increase exponentially

[0005] (2) Low security level

In a heterogeneous network, relevant signaling is transmitted through an open air interface. During this process, the protocol cannot provide privacy protection and is vulnerable to various malicious attacks such as impersonation, man-in-the-middle attacks, replay attacks, and redirection attacks.

At the same time, the session key negotiated between the target access network and the user does not have forward / backward security. Once the session key is leaked, confidential information will be leaked, and the entire communication process will no longer be secure.

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