LTE non-access layer ciphertext decryption method and signaling monitoring device

A non-access layer and ciphertext technology, applied in the direction of security devices, wireless communications, electrical components, etc., to achieve the effect of real-time monitoring

Active Publication Date: 2011-12-28
重庆华沐网络科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problem that the messages of the NAS layer of the Long-Term Evolution LTE network are transmitted in ciphertext, and the signaling monitoring must decrypt the encrypted

Method used

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  • LTE non-access layer ciphertext decryption method and signaling monitoring device
  • LTE non-access layer ciphertext decryption method and signaling monitoring device
  • LTE non-access layer ciphertext decryption method and signaling monitoring device

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Embodiment Construction

[0040] The following drawings and specific implementation methods further illustrate the LTE non-access stratum ciphertext decryption method and the signaling monitoring device of the present invention.

[0041] attached figure 1 It is a schematic diagram of the long-term evolution LTE communication network structure. It can be seen from the figure that LTE is the latest mobile communication technology. As an update technology of the third generation mobile communication, LTE can provide mobile users with higher bandwidth and safer communication methods. The main network elements of the LTE network include user terminal UE (hereinafter referred to as UE), base station eNB (hereinafter referred to as eNB), mobility management entity MME (hereinafter referred to as MME), serving gateway S-GW (hereinafter referred to as S-GW ), packet data service gateway P-GW (hereinafter referred to as P-GW), home user server HSS (hereinafter referred to as HSS), etc.; the main interfaces inclu...

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Abstract

In order to solve the problem that the messages of the NAS layer of the Long-Term Evolution LTE network are transmitted in ciphertext, and the signaling monitoring must decrypt the encrypted messages and restore the plaintext to perform subsequent message analysis, the present invention proposes a LTE non-access layer ciphertext decryption Method and signaling monitoring device thereof. The LTE non-access layer ciphertext decryption method and its signaling monitoring device of the present invention deduce the conditions and parameters required for NAS layer ciphertext message decryption by receiving and analyzing the signaling data of the S1-MME interface and the S6a interface, which can quickly 1. Obtain the encryption key and other necessary parameters used by the non-access layer in time to realize real-time decryption and complete analysis of encrypted messages at the non-access layer, thereby realizing real-time monitoring of the long-term evolution communication network.

Description

[0001] technical field [0002] The present invention relates to a long-term evolution communication network signaling monitoring technology and device, in particular to an LTE non-access layer ciphertext decryption method and a signaling monitoring device thereof. Background technique [0003] LTE (Long Term Evolution, hereinafter referred to as LTE) network communication technology is the latest mobile communication technology. As an updated technology of the third generation mobile communication (3G), LTE can provide mobile users with higher bandwidth and more secure way of communication. [0004] The main network elements of the LTE network include user terminal UE (hereinafter referred to as UE), base station eNB (hereinafter referred to as eNB), mobility management entity MME (hereinafter referred to as MME), serving gateway S-GW (hereinafter referred to as S-GW ), packet data service gateway P-GW (hereinafter referred to as P-GW), home user server HSS (hereinafter re...

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Application Information

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IPC IPC(8): H04W12/02H04W12/06H04W24/00
Inventor 雒江涛杨琼
Owner 重庆华沐网络科技有限公司
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