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:
Oct. 20, 2026
Filed:
Apr. 07, 2023
Alipay (Hangzhou) Information Technology Co., Ltd., Hangzhou, CN;
Hongliang Tian, Hangzhou, CN;
Weijie Liu, Hangzhou, CN;
Qing Li, Hangzhou, CN;
Zongmin Gu, Hangzhou, CN;
Shoumeng Yan, Hangzhou, CN;
Alipay (Hangzhou) Information Technology Co., Ltd., Hangzhou, CN;
Abstract
Embodiments of this specification provide a log-structured secure data storage method and apparatus, to securely store data in a hard disk in a trusted execution environment (TEE). Such a data operation is performed based on the following three logical data structures: a data block on which an operation such as write/read/retrieval can be performed, a secure index, and a security log. The data block is appended to the hard disk in a ciphertext form. The secure index is an index that is created based on a log-structured merge tree for each index entry generated for each ciphertext data block. The security log is used to record, in the append manner, operation information of writing the data block or the index entry to the hard disk. Such a data storage architecture can reduce, on the basis of data confidentiality, write amplification of storing data in the hard disk in the TEE.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile