Open Access
Table 1
Symbols and definition
| Symbol | Explanation |
|---|---|
| Ui | User |
| SDj | Smart device |
| GW | Home gateway |
| TA | Authority |
| IDi, IDj, IDG | Identity of Ui, SDj, GW |
| PIDi, PIDj | Pseudo identity of Ui, SDj |
| PWi | Ui’s password |
| BIOi | Ui’s biometric |
| σi, τi | Fuzzy parameters |
| KG | Private key of GW |
| KS | Private key of SDj |
| ri, rj, ni, nj, nk, ns | Random numbers |
| p | A large prime number |
| ⊕, || | Exclusive operation, Connection operation |
| h(·) | Hash function |
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