Method for configuring secret key of wireless sensor network
A wireless sensor and network key technology, applied in the field of security management and setting of wireless sensor networks, can solve the problems of limited storage space of network nodes, inability to effectively resist node physical capture attacks, limited transmission range, etc., to achieve energy overhead and security. Effects of Sex and Connectivity
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[0020] The present invention will now be described in further detail in combination with examples:
[0021] The present invention is realized in this way,
[0022] Step 1: Generate a large key pool;
[0023] Step 2: Generate α, β key matrix space, namely: randomly select several keys from the key pool to construct m 1 A lower triangular matrix Lv of order v, and then a mathematical model of a symmetric matrix Kv is generated according to the product of Lv and Uv to obtain the upper triangular matrix Uv, where the values on the diagonal of the upper triangular matrix Uv are taken from the key pool choose randomly;
[0024] E.g:
[0025] First; randomly select a set of keys from the key pool to form a lower triangular matrix L of three-dimensional numbers, and set an unknown upper triangular matrix U with the same dimension as L. The product of L and U can produce a symmetric Matrix K, that is, L×U=K, assuming a 3×3 matrix as an example, as the following formula 1,
[0026] ...
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