Cipherkey setting method of heterogeneous wireless sensor network

Abstract

The invention relates to a cipherkey setting method of a heterogeneous wireless sensor network. The method comprises the following steps: step1, three layers of heterogeneous network structures are built; step2, a plurality of t-order symmetric binary polynomials are generated on a galois field GF (q), and S t-order symmetric binary polynomials form an N*N symmetric matrix A; each strong-capacity node stores a certain row vector j of an upper triangular matrix and a column vector j of a corresponding lower triangular matrix, meanwhile, the row number j of the certain row vector j is used as an ID number to be stored, and a Hash function is stored; step3, the cipherkeys of the strong-capacity nodes (H-sensor) and common sensor nodes (L-sensor) are pre-distributed; step4, the session cipherkeys among the strong-capacity nodes (H-sensor) are generated; and step5, the session cipherkeys of the strong-capacity nodes (H-sensor) and the common sensor nodes (L-sensor) are generated. Compared with the prior art, the method has the advantages that the relationship between the energy consumption and the safety of the wireless sensor network are further balanced; and on the basis that the storage consumption of the whole network is reduced, the safety of the network is increased, and the network nodes realize a 100-percent ability to resist capture attack.

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] Among the reported wireless sensor ...

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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.

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