Algorithm 1: Smart sensor data integrity and confidentiality algorithms

Input: SensorData, Key

Output: CipherData

Begin

1. Retrieves the current timestamp timestamp and SN_ID

2. ProData=SN_ID||SensorData||timestamp;

3. DataHash=SM3(ProData);

4. CipherData =SM4(Key,ProData||DataHash);

5. return CipherData;

End