Sensing original data safety protection method supporting data processing

Abstract

The invention discloses a sensing original data safety protection method supporting data processing. The method comprises an initialization stage and a data reporting stage executed repeatedly. The initialization stage comprises clustering nodes, obtaining data recovery groups by various clusters and distributing secret sharing data to the nodes. The data reporting stage comprises hiding sensing data of the nodes by the nodes, generating watermark data, and recovering the sensing data through cooperation of data recovery nodes. The method has good expansibility for the addition of the nodes and good robustness for node failures. Tolerance for the captured nodes is improved, good privacy protection effectiveness is provided, and energy consumption is reduced at the same time; and integrity of data can be identified, so filtering for tampered data is achieved, and a network communication resource is prevented from being wasted.

Description

technical field [0001] The invention relates to network data security protection technology, in particular to a sensory original data security protection method supporting data processing. Background technique [0002] Sensor network (referred to as sensor network) is an important part of the Internet of Things and Cyber-Physical System (CPS, Cyber-Physical System), and has broad application prospects in the fields of environmental monitoring, medical and health, and smart home. When sensor networks are used in areas such as medical applications and smart homes, the exposure of sensory data, including categories such as pulse, heart rate, and water and electricity usage, may cause personal safety or moral damage. This requires that the sensor data not only maintain confidentiality to external attackers, but also to internal nodes, that is, to ensure the privacy of the data, so as to ensure that people accept the collection of their personal information by the sensor network....

AI Technical Summary

Problems solved by technology

[0007] Although the integrity authentication problem of sensor network data has been widely concerned at the beginning of the rise of sensor network, and a large number of solutions have emerged, but most of these works are independent of data privacy protection and cannot be effectively implemented. Solve the integrity authentication of privacy-protected data

There are not many technologies that can realize data privacy protection and integrity authentication at the same time. He et al. respectively extended the privacy protection mechanism PDA and CPDA proposed by He et al., and proposed the mechanism iPDA and iCPDA. However, these works are only applicable to summation Data processing requires a large amount of data communication and requires dense deployment of network nodes

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