Key Predistribution Scheme for Wireless Sensor Networks with Higher Connectivity
نویسندگان
چکیده
In wireless sensor network (WSN), preditibution of cryptographic keys is possibly the most practical approach to perfect network communications. In this paper, we propose a new secret key predistribution scheme to achieve a higher connectivity in WSN. For this we combine a random key predistribution scheme and hash chain method based on the prior knowledge of sensor node deployment. The proposed scheme has two advantages. First, the proposed scheme provides a higher connectivity. Second, our scheme reduces the storage requirement for each sensor node. We compare the proposed scheme with previous key predistribution schemes in memory usage, local connectivity, global connectivity, and network resiliency against node capture.
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