From: ToAM: a task-oriented authentication model for UAVs based on blockchain
Phase | Information category | Length (bytes) |
---|---|---|
Group building | mUAV calls the smart contract and queries the UAV’s public key | 128 + 654 |
Send the ticket and time stamp to UAV | 28 + 4 | |
Send the ticket and related signatures to BS | 28 + 20 | |
mUAV calls the smart contract and queries the related information | 128 + 20 | |
Send the pre-shared key and time stamp to UAV | 20 + 4 | |
Intra-group authentication | The initiator UAV sends its ID | 128 |
The receiver searches the hash value in the chord ring | 20∙(Log2(N) + 1) |