3rd Generation Partnership Project

The scope of this Technical Specification is limited to authentication of network elements, which are using NDS/IP or TLS.

The document specifies the security architecture; trust model and security requirements for the interworking of the 3GPP System and WLAN Access Networks. This specification is also valid for other IP based Access Networks that support the same security capabilities towards the interworking system as WLAN does.

The present document defines the security architecture for network domain IP based control planes, which shall be applied to NDS/IP-networks (i.e. 3GPP and fixed broadband networks). The scope of network domain control plane security is to cover the control signalling on selected interfaces between network elements of NDS/IP networks.

The scope for this technical specification is to specify the security features and mechanisms for secure access to the IM subsystem (IMS) for the 3G mobile telecommunication system.

The purpose of the present document is to define the security features which are to be available in a GSM PLMN, together with the associated levels of protection.