A carbon footprint data storage method and device based on a distributed storage system

By performing encrypted sharding of carbon footprint data with permission policy attribute sets in a distributed storage system, and utilizing Merkel trees and blockchain for evidence storage, the single point of failure and data tampering problems in carbon footprint data management are solved, achieving secure and traceable data storage and management.

CN122113156APending Publication Date: 2026-05-29CHINA THREE GORGES CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA THREE GORGES CORPORATION
Filing Date
2026-01-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies for carbon footprint data management suffer from single point of failure risks, data leakage risks, easy tampering of encrypted indexes, and difficulty in tracing changes in permissions, making them particularly difficult to apply effectively in multi-entity collaborative management scenarios.

Method used

A carbon footprint data storage method based on a distributed storage system is adopted. The data is encrypted and fragmented through a set of permission policy attributes. Ciphertext fragments are generated and uploaded to different nodes for storage. Merkel trees and blockchain are used for evidence storage to ensure data security and the immutability of permission policies.

Benefits of technology

It achieves secure distributed storage of data, reduces the risk of single point of failure, supports fine-grained permission changes, ensures the integrity and traceability of data indexes, and provides a reliable foundation for collaborative management of carbon footprint data.

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Abstract

The application discloses a kind of carbon footprint data storage method and device based on distributed storage system, belong to data storage technical field. Including: based on permission policy attribute set, carbon footprint data is encrypted, and ciphertext data is obtained;According to the attribute quantity in permission policy attribute set, different attribute dimensions are handled to the ciphertext data according to different attribute dimensions, and a plurality of ciphertext fragments are obtained;Each ciphertext fragment is respectively uploaded to the different node in distributed storage system and is stored, and the content addressing index corresponding to each ciphertext fragment is obtained;With the hash value of the content addressing index of each ciphertext fragment as the leaf node of Merkel tree, and from each leaf node starts to generate the non-leaf node of Merkel tree layer by layer upwards, until the root node of Merkel tree is obtained;The root node of Merkel tree and permission policy attribute set are chained and stored in blockchain system.The application avoids single point failure and data centralized leakage risk, and improves the data security of system.
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