Abstract
Recently, Ehdaie et al. proposed a two-dimensional hash chain based key pre-distribution (2DHC-KPD) scheme that can enhance resiliency against node-capture attack when compared with the conventional hash chain based key pre-distribution (HC-KPD) scheme. However, these HC-KPD-like schemes cannot resist the advanced node-capture attack (ANA) that attackers have the knowledge of the identifiers of sensor nodes. In this paper, we adopt the diagonal layer from the two-dimensional key map in 2DHC-KPD scheme to design the diagonal layer hash chain based key pre-distribution (DLHC-KPD) scheme. Compared with all HC-KPD-like schemes, our DLHC-KPD scheme has the best resiliency against node-capture attack, and is also the only scheme that can resist against the ANA. The trade-off is more hash operations.
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