Design of security protection architecture for sensor network information based on data encryption
In order to achieving data security output of senor,this security architecture was designed based on elliptic curve encryption algorithm.This system included sensors layer,middle level aggregator,and top-level aggregator.Sensors layer achieved data detection,data encryption and digital signature,the elliptic curve point multiplication operation was entrusted to an outsourced server.Middle level aggregator verified sender,receiver,and timestamp and the digital signatures.Middle level aggregator aggregated data from multiple sensors,completed digital signature,and then aggregated data was uploaded to top-level aggregator.Top-level aggregator verified sender,receiver,and timestamp,and then,the digital signatures were aggregated to verify.The ciphertext was decrypted by cipher,sensor detection data was got.The test for system was taken,the result showed that the elliptic curve point multiplication operation was outsourced for sensors layer,could improve computational efficiency,both the middle level and top-level aggregators had high operational efficiency.
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