The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
Nov. 27, 2024
Jinan University, Guangzhou, CN;
Feiran Huang, Guangzhou, CN;
Youqiong Xiong, Guangzhou, CN;
Zhiquan Liu, Guangzhou, CN;
Jian Weng, Guangzhou, CN;
JINAN UNIVERSITY, Guangzhou, CN;
Abstract
A full-link data security protection method and a system are provided. The method includes: at a data creation and collection stage: building a data security identification; at a data transmission and storage stage: dividing the ciphertext file into blocks to generate ciphertext components; calculating a virtual index and a data label; transmitting the ciphertext components to a distributed hash table (DHT) network; uploading a tuple including the virtual index, the data block, and the data label to a cloud server; at a data processing and exchange stage: applying re-encryption based on a re-encryption key generation algorithm; performing decryption to obtain the signed identifier and a secret value; acquiring a tuple having a ciphertext component associated with the virtual index. Attribute-based proxy re-encryption is used to achieve fine-grained access control for the cloud storage. In the data destruction stage, the DHT network automatic updating utility is leveraged to realize data self-destructing.