A method and device for protecting signaling between mobile communication networks

Abstract

The invention discloses a mobile communication inter-network signaling protection method and device, which overcomes the defects still existing in the mobile communication safety protection method and equipment in the prior art. The invention contains an external network and an internal network, the external network is a mobile network, and the internal network is a target mobile network entity; the interface between the external network signaling transfer point STP and the interface of the internal network signaling transfer point STP has no sense of access There is a bottom-level processing device, and the standard No. 7 signaling protocol is adopted between the bottom-level access device and the internal and external network signaling transfer point; the bottom-level access device receives the signaling and forwards it to the device, which is connected to the protective device through a custom interface , The transport layer of this interface adopts UDP protocol, and the application layer adopts a custom protocol. The invention detects and processes the signaling message initiated by the external mobile operator network under the condition of ensuring that the normal business of the operator is not affected, and prevents malicious interference behavior of the external network.

Description

technical field [0001] The invention relates to mobile communication safety protection technology, in particular to a mobile communication inter-network signaling protection method and device. Background technique [0002] The global mobile communication network is an interconnected network. my country's mobile operators have signed international roaming agreements with hundreds of foreign mobile operators. According to the roaming agreement, mobile operators at home and abroad can access some user information of the other party through the international signaling network, but the security mechanism of the 2G / 3G mobile signaling network is not perfect, and the mobile network and users are faced with network element equipment interference and user sensitive information. leaked security threats. In addition, there are various special mobile communication networks for the military, party and government departments in China, and generally have proprietary core network element e...

AI Technical Summary

Problems solved by technology

[0007] The invention solves the defects still existing in the existing mobile communication security protection method and equipment, and provides a mobile communication inter-network signaling protection method and device with better processing effect

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