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Group Key Management Method for Wireless Sensor Networks

A wireless sensor and key management technology, applied in the field of key management, can solve problems such as unstable transmission and unreliable communication channels

Inactive Publication Date: 2017-12-15
佛山德瑞普测绘科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in view of the packet loss problem caused by unreliable communication channels and unstable transmission in wireless sensor networks, how to make authorized network nodes automatically recover lost group keys and reduce communication consumption caused by retransmission of group key information is an important aspect to be considered in the group key management mechanism

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  • Group Key Management Method for Wireless Sensor Networks
  • Group Key Management Method for Wireless Sensor Networks
  • Group Key Management Method for Wireless Sensor Networks

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Experimental program
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Embodiment Construction

[0103] Now in conjunction with embodiment the present invention is described in further detail:

[0104] The present invention is achieved like this,

[0105] First of all, the wireless sensor network is heterogeneous. Group management nodes with better communication, storage, and computing capabilities are safely deployed and are responsible for periodically sending key update messages for the entire group of sensor nodes. Different nodes can form multiple nodes. A dynamic peer-to-peer group, for one of the dynamic peer-to-peer groups, the dynamic joining or exit of nodes in the dynamic peer-to-peer group will cause the membership relationship to be in constant dynamic changes, in order to prevent malicious nodes from communicating with the current node in an unauthorized form For communication, it is necessary to frequently update the dynamic peer group key to ensure the forward and backward security of the session. The key is periodically updated, the time between two dyna...

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Abstract

The wireless sensor network group key management method is characterized by using the personal secret information h(i) and the peer group key management node GKC to broadcast the following information to each node in the group: βj={ω1(x)+ ω2(x), L, ωj‑2(x)+ωj‑1(x), ωj(x)}∪{β1(x)+β2(x), L, βj‑2(x)+βj‑1 (x), βj(x)}, so that each node calculates and αj through a specific formula, and obtains a new session key Kj. Compared with the prior art, the present invention has a group key management method that uses polynomials and confusion values ​​to realize self-healing, realizes forward, backward, and two-way secrecy of group communication, and realizes self-healing of group keys , while consuming less communication energy and storage energy advantages.

Description

Technical field: [0001] The invention relates to a key management method required for group communication. Background technique: [0002] Wireless sensor networks have broad application prospects in the fields of military, industry, transportation, security, medical care, and home and office environments. The openness and broadcasting characteristics of wireless sensor network deployment areas increase the possibility of network damage or exposure. How to ensure the confidentiality of wireless sensor network tasks, the reliability of data generation, and the security of data transmission are key issues for wireless sensor networks. Security needs to be considered comprehensively. Among them, key management aimed at providing safe and reliable confidential communication is the most important and basic content of wireless sensor network security research. Effective key management mechanisms are also other security mechanisms, such as routing protocols, secure positioning, dat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/04H04W84/18
CPCH04W12/04H04W84/18Y02D30/70
Inventor 张彩霞
Owner 佛山德瑞普测绘科技有限公司