Based on the analysis of the existing Random Key Predistribution (RKP) schemes in wireless sensor network, a hash random key predistribution scheme H-RKP is proposed by introducing multi-path reinforcement scheme, q-composition scheme and one-way cryptographic hash function based random key predistribution algorithm. The security performance of the scheme under node capture attack is analized. The H-RKP scheme can further improve the security of the existing RKP schemes.
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