Research Article
Query Privacy Preserving for Data Aggregation in Wireless Sensor Networks
| | Input: query . | | | Output: decrypted data of each query , . | | (1) | Begin | | (2) | For node () | | (3) | If () Then | | (4) | Collect the data ; | | (5) | Choose a random number from ; | | (6) | Select a key ; | | (7) | Encrypt the data, ; | | (8) | Aggregate the data, ; | | (9) | End If | | (10) | End For | | (11) | For () at BS | | (12) | Decrypt the data, ; | | (13) | End If | | (14) | Return | | (15) | End |
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