Security key setting method for partitioned wireless sensor network

Abstract

The security key setting method of the partitioned wireless sensor network is characterized in that step 1: dividing the wireless sensor network deployment area into p×p square grids of the same size, and step 2: generating a key matrix space: consisting of (,) The matrix space composed of matrix pair elements (the lower triangular matrix, the upper triangular matrix, and the product of which is a symmetric matrix is ​​called the key matrix space, and each matrix pair element corresponds to a unique ID value. Step 3: information pre-distribution method And the establishment method of key.Compared with the prior art, the present invention has the relation between further balancing wireless sensor network energy consumption and security, guarantees the connectivity rate of network, effectively improves the communication efficiency and computational efficiency of node, simultaneously The advantages of enhancing the node's ability to resist capture attacks.

Description

technical field [0001] The invention relates to a setting method of a wireless sensor network. Background technique [0002] With the continuous development and integration of electronic technology, computer technology and wireless communication technology, wireless sensor network technology is more and more widely used in various fields such as production, life, military, etc. information. Compared with traditional sensor nodes, wireless sensor network nodes are characterized by small size, low price and intelligence, so they are usually arranged in large numbers in open areas. However, due to the limited storage space, low computing power, limited transmission range, and limited energy of sensor nodes, complex security algorithms cannot be implemented. How to design a reasonable security algorithm to protect nodes under limited energy requirements and transmission range Information security is a hot research topic at present. [0003] How to achieve the balance among th...

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Problems solved by technology

However, due to the limited storage space, low computing power, limited transmission range, and limited energy of sensor nodes, complex security algorithms cannot be implemented. How to design a reasonable security algorithm to protect nodes under limited energy requirements and transmission range The security of inter-personal information is a hot research topic at present.

[0003] How to achieve the balance among the connectivity, security and energy consumption of the network is the focus and difficulty of the current wireless sensor network key management research. Through the comprehensive analysis and comparison of the existing wireless sensor network key management, the currently reported The key pre-distribution management method mainly has the following problems: (1) The connectivity performance of the network can be improved through deployment, but the security performance is not high; (2) By introducing a similar single-key space key pre-distribution scheme, it can Ensure that any two nodes in the network can directly establish a pairing key, and no confidential information will be leaked when the damaged node does not exceed the threshold, but the resource overhead is huge; (3) Documents [1]~[3] have been extended And in-depth research, but still can't balance the relationship between security and resource overhead

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