Authentication method for accessing mobile subscriber to core network through femtocell

A technology for mobile users and home base stations, applied in the field of communication security, can solve problems such as malicious user attacks, no authentication methods, and threats to core network user terminals, and achieve the effects of ensuring security, reducing authentication overhead, and improving security and speed.
CN101867928AInactive Publication Date: 2010-10-20XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2010-10-20
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an authentication method for accessing a mobile subscriber to a core network through a femtocell, which mainly makes up for the defect that a complete authentication method for accessing the mobile subscriber to the core network is not provided in the 3GPP standard. Under the condition of not changing network equipment in the 3GPP standard, the conventional extensible authentication protocol and key agreement EAP-AKA and internet key exchange IKEv2 are improved. The authentication method comprises that: (1) a secure channel IPsec is established between the femtocell and a secure gateway; (2) the mobile subscriber is subjected to access authentication and pre-generates an important authentication parameter MK for a step (3); and (3) the mobile subscriber and the core network perform bidirectional authentication by using the IPsec established by the step (1) and the MK pre-generated by the step (2). Compared with the traditional authentication method using the EAP-AKA and the IKEv2, the authentication method optimizes authentication steps under the condition of not reducing security, reducing authentication overhead, has the advantages of security and quickness, and is suitable for scenes that the mobile subscriber accesses the core network through the femtocell.
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Description

technical field

[0001] The invention belongs to the technical field of communication security, and relates to an authentication method for a mobile user to access a core network through a home base station, which can be used in any scenario where a mobile user needs to access the core network through a home base station, such as home, school, laboratory, office, etc. . Background technique

[0002] Femtocell, also known as femtocell, is a small, low-power cellular base station, mainly used in indoor places such as homes and offices. Its role is to provide users with voice and data services as a supplement to the indoor coverage of the cellular network. Femtocells use the IP protocol and adopt a flat base station architecture, which can access the core network of mobile operators through existing broadband means. The far end realizes the connection from the IP network to the mobile network by a dedicated gateway. From the perspective of network connection only, the femto b...

Claims

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