支持数据所有者更换的安全审计方法、装置、设备、介质及产品
By generating trapdoors and transformation parameters, combined with a key generation center and a hash tree, the continuity of data integrity verification after a change of data ownership in cloud storage is achieved, solving the problem of data integrity verification after a change of data ownership and improving the reliability and user experience of cloud storage services.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-17
AI Technical Summary
In cloud storage, after a change of data ownership, how can we ensure the continuity of data integrity verification without downloading all the data, especially during corporate mergers and acquisitions, where the new data owner needs to verify the integrity and freshness of the data?
By generating trapdoor parameters and transformation parameters, and combining the key generation center, the data owner's private key, and hash tree, the data block labels are updated. The cloud server calculates the labels of each data block after the change of data ownership and generates audit evidence, which is then used by a third-party auditor for security auditing.
After a change in data ownership, the new data owner can ensure the continuity of data integrity verification without downloading all the data, thus improving the reliability of cloud storage services and user experience.
Smart Images
Figure CN120639423B_ABST