From: A Forward Authentication Key Management Scheme for Heterogeneous Sensor Networks
 |  |  | Pairwise key establishment | Key revocation |
---|---|---|---|---|
Kausar et al. [23] | H-sensor | transmitted | 4 | 1 |
 |  | received | 2 | 0 |
 | L-sensor | transmitted | 2 | 0 |
 |  | received | 4 | 1 |
Our Scheme | H-sensor | transmitted | 2 | 1 |
 |  | received | 1 | 0 |
 | L-sensor | transmitted | 1 | 0 |
 |  | received | 2 | 1 |