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:
Aug. 22, 2023
Filed:
Aug. 16, 2022
Zhejiang University, Zhejiang, CN;
ZHEJIANG UNIVERSITY, Hangzhou, CN;
Abstract
Disclosed is a database encryption method supporting composable SQL query, which mainly comprises the following steps: (1) a user encrypting and preprocessing data based on the encryption scheme provided by the present disclosure and uploading an encryption result and preprocessed data to a service provider; (2) setting and uploading a SQL query instructions: the user uploads the query instruction to the service provider according to actual needs, and uploads auxiliary parameters for the query instruction at the same time; (3) data query: the service provider performs SQL query according to the query instruction and auxiliary parameters received from the user, saves a calculation result, updates the data and returns a query result to the user.