In view of the problems of pseudo-base and pseudo-offset in the current de-weight method,the effect of de-weight is not good.This paper presents a safe method for removing power disturbance data based on Merkle hash tree.Con-vergence encryption method is used to effectively solve the contradiction between data encryption and deduplication.Merkle hash tree is used to obtain power disturbance data block fingerprint,which marks the power disturbance data to be de-dupli-cated.Duplicate data blocks are detected using POW protocol to prove ownership.The disturbance state likelihood is used instead of logarithmic likelihood to avoid repeating abnormal disturbance state in the process of deregistration and achieve safe deregistration.The experimental results show that the maximum base extraction of the method is 3000 B and the maxi-mum offset is 6000 B,both of which do not exceed the threshold set by the experiment,indicating that the proposed method has a good effect of weight removal.
万方数据
维普
