Base station secure accessing method of mobile communication system

Abstract

Base station secure accessing method of mobile communication system, including steps: a first base station sends negotiate request message of security capability; a neighbor base station judging the security capability matches whether or not with security capability of the first base station, if matching, then sending response message; the first base station accomplishes access identity identification with the neighbor base station and consulting exit passageway identification cipher key; the base station and the neighbor base station respectively identifying encryption key of cipher key derivation generating passageway via the exit passageway and passageway integrality cipher key thereby establishing exit passageway of the first base station and the neighbor base station via passageway encryption key, passageway integrality cipher key. The passageway encryption key accomplishes encrypt to data, passageway integrality cipher key assures integrality of data and non-repudiation of the information senders so that assuring safety between the first base station and the neighbor base station, improving security gradation of mobile communication system.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for safely accessing a base station of a mobile communication system. Background technique [0002] With the development of communication technology, the application of mobile communication technology in people's life is becoming more and more extensive. Almost all aspects of people's life have been applied to wireless communication technology. In order to ensure the normal operation and operation of the mobile communication system , manageable and billable. The mobile communication system needs to authenticate the equipment and users accessing the system. Only authenticated equipment and users can be allowed to access the system network, use system network resources, and access system network resources. service provided. In a wireless broadband access system, there are generally three types of entities: terminal (Terminal), base station (Base Station, BS),...

AI Technical Summary

Problems solved by technology

Especially in the suburbs, rural areas, mountainous areas and other areas, it is not only inconvenient to lay out wired cables in these areas, but also consumes a lot of manpower and material resources

Therefore, in these areas, the base station usually communicates with the base station through wireless means. Since the base station and the base station can transmit through wireless means, it is possible to illegally obtain information sent by other base stations by forging the base station, or to illegally obtain information sent by other base stations. Monitor the content transmitted between the base station and the base station, affecting the security of the content transmitted between the base station and the base station

For example, when users switch between base stations, in order to achieve the purpose of reducing the packet loss rate and seamless handover, they need to transfer sensitive data such as keys between base stations. If the content transmitted between base stations is not kept secret, Key information will face the risk of being monitored, affecting security

[0004] In order to solve the security problem of mobile communication system transmission, the solutions to the security problem proposed by the mobile communication system in the prior art are all solutions for the security problem between the user terminal and the base station. For example, the application Two patent applications with Nos. 200810027928.3 and 200810027930.0 respectively provide a secure access method for a wireless metropolitan area network, both of which are solutions for the security between the user terminal and the base station. There is no effective solution to the security problem of information transmission between the base station and the base station

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