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Key management method, system and device for centrally-controlled MESH network

A technology of key management and centralized control, applied in the field of network security, it can solve the problems of low security and reliability of MESH networking, and the inability to establish secure MESH links, so as to improve security and reliability and avoid long-term interruptions. Effect

Active Publication Date: 2014-04-02
NEW H3C TECH CO LTD
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Problems solved by technology

[0005] However, in such figure 2 In the centralized control MESH network shown, there is only one MKD, which is served by the AC device. Once the AC fails, or the network connected to the AC fails, a secure MESH link cannot be established between MPs. Obviously, Existing MESH networking has low security and reliability

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  • Key management method, system and device for centrally-controlled MESH network
  • Key management method, system and device for centrally-controlled MESH network
  • Key management method, system and device for centrally-controlled MESH network

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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The method provided by the present invention mainly includes: configuring the main MKD and the standby MKD in the centralized control MESH network, and when the main MKD is working normally, the main MKD is responsible for the key management of the MESH network; when the MA in the MESH network detects When the active MKD fails, send the MESH link security information of this MA to the standby MKD, so that the standby MKD can use the received MESH link security information to generate the keys of the MESH links connected to each MA, and the standby MKD is responsible for Key management for MESH networks.

[0033] pass below image 3 The shown MESH networking describes the above method in detail. image 3 In the centralized control MESH net...

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Abstract

The invention provides a key management method, a key management system and a key management device for a centrally-controlled MESH network. A main MESH key distributor (MKD) and a standby MKD are arranged in the centrally-controlled MESH network. When working normally, the master MKD is used for the key management of the MESH network; and when detecting that the master MKD fails, a MESH authenticator (MA) in the MESH network transmits the MESH link safety information of the MA to the standby MKD, so that the standby MKD serves as the master MKD for the key management of the MESH network after generating keys of MESH links connected by each MA by utilizing the received MESH link safety information. By the method, the system and the device, the safety and reliability of the conventional centrally-controlled MESH network can be improved.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a key management method, system and device in a centralized control MESH network. Background technique [0002] The wireless mesh (MESH) network, like the common wireless access network, also has wireless connection security issues, the most important aspect of which is to encrypt data when transmitting data. The encryption of the MESH link adopts the key method, that is, the key is used to encrypt and decrypt the data between the wireless mesh network access points (MP). Therefore, key management is an important part of the MESH security system. [0003] The key management mechanism in the MESH network is the Key Distributor (MKD) hierarchical key mechanism, which involves the generation, negotiation and distribution of keys. There are three main roles in this mechanism: MKD, Authenticator and Supplicant. In the centralized control MESH network group, the MKD is acted...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/04H04W12/06H04W12/0433
Inventor 吴蔷缪琛刘岸淘
Owner NEW H3C TECH CO LTD
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