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Ble Key Agreement Scheme Based On Rssi Variation Trend, Xinghao Zhang, Yicai Huang, Bin Yu
Ble Key Agreement Scheme Based On Rssi Variation Trend, Xinghao Zhang, Yicai Huang, Bin Yu
Journal of System Simulation
Abstract: Based on the variation trend of received signal strength index, a lightweight BLE key agreement scheme was proposed. Using adaptive frequency hopping, the variation of channel characteristics was strengthened. According to the randomness and reciprocity of BLE channel characteristics in coherence time, the RSSI of BLE signal was measured. And the real-time key was produced by calculating the variation trend. On the basis of experiments results, the randomness of key can be ensured, and a high key generation rate has been reached at the same time. The scheme can be applied to resource-constrained applications.