Security data aggregation based on data recoverability for wireless sensor network of AMI

A security data aggregation scheme based on the data recoverability is proposed to reduce the data transmission capacity of the wireless sensor network of AMI (Advanced Metering Infrastructure), improve its transmission efficiency and prolong its lifetime, which encrypts and aggregates the acquired data based on the homomorphic encryption algorithm to ensure the data confidentiality and accurately recovers them based on a reasonable encoding mechanism. An authentication mechanism based on the Chinese remainder theorem is proposed to ensure the integrity of data transmission. The performances of the proposed scheme are analyzed to verify its higher security and less computation and communication costs.