Data integrity verification method capable of safely removing duplication in cloud storage of smart power grid

Abstract

The invention discloses a data integrity verification method capable of safely removing duplication in cloud storage of a smart power grid. The method comprises the following steps: firstly, performing erasure code encoding on a file; calculating a mark of the erasure code encodingfile and uploading the fileto a cloud server; enabling the cloud server to adopt a file-level deduplication strategy to perform deduplication and storage on the file; for files without duplication, adopting a data block level deduplication strategy for deduplication in the storage process, enabling the cloud server to verify the file ownership of a user through a Bloom filter, enabling the user to verify the integrity of stored data through an S-PDP mechanism to restore damaged data through erasure codes. An erasure code mechanism, a two-leveldeduplication strategy, the Bloom filter and the S-PDP mechanism are combined together, redundant power data can be effectively eliminated, the storage space and bandwidth are saved, ownership certification can be supported, data restorability is ensured, user privacy is protected, and therefore the safety and integrity of cloud storage data of the smart power grid are ensured.

Description

technical field [0001] The invention relates to an integrity verification method for smart grid cloud storage, and belongs to the technical field of data processing. Background technique [0002] The smart grid realizes the informatization, automation and interaction of the six links of power generation, power transmission, power transformation, power distribution, power consumption and dispatching, so it will generate massive power data. These data are at the B / KB level or at the PB level, with different sizes. And the data in the smart grid is growing faster and faster. For example, in the SCADA system, G-level status monitoring data can be generated every day. However, most of the power data is redundant data, which not only reduces network bandwidth and storage space, increases data management costs, but also reduces system performance. Taking insulator leakage current monitoring as an example, it is assumed that data is collected once every 10 ms , A tower has reached...

AI Technical Summary

Problems solved by technology

However, this solution adopts a file-level deduplication strategy in the stage of security deduplication, and does not adopt a more fine-grained strategy

[0005] In summary, the current data integrity verification methods that can be safely deduplicated in smart grid cloud storage are not ideal, and cannot guarantee the security and integrity of smart grid cloud storage data, and further research is needed

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