Research Article
A Lightweight Three-Party Mutual Authentication Protocol for Internet of Health Things Systems
Table 1
Parameters, methods, and symbols.
| Notation | Description | Notation | Description |
| TA | Cloud authentication server | | A wearable Internet of Things connector | | Server key pair | | Effective time | WS | A wearable device | | Current time of device i | | Selected elliptic curve base point | | Determine whether they are equal | | Status of equipment | | XOR operation | || | Concatenation operation | SK | Session key | PID | Temporary ID of the patient after binding with IotC | PTC | Temporary identification code of the patient after binding with IotC | NID | Temporary network ID authorized by TA | Ac | Temporary authentication code authorized by the server | a, c, x, y | Random parameters | | Collision-resistant hash function | | Authentication code of device I | | Management key for device i | | User’s biometric information | | Deterministic reproduction function | | Probabilistic generation function | | Reproduction parameter from | | Biometric key from | E ()/D () | Encryption/decryption method |
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