Data access control method and system based on digital signature

• Main Authors: WU CHENGJIE, ZHENG FANQI, SHEN MENGTING, ZHANG HONGBING
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to the field of data access, and provides a data access control method and system based on a digital signature, and the method comprises the steps: a data access control device receives a data access request sent by a client, verifies the access authority of a user, carries out the signature processing of the data access request after the authority verification is passed, and obtains a digital signature; sending the digital signature to the client, wherein the data access request comprises user information, a database system identifier and an access command; the client sends a data access request and a digital signature to the target database system; and the target database system receives the data access request and the digital signature, performs signature verification operation on the digital signature to judge whether the digital signature is matched with the received data access request, and responds to the data access request if the digital signature is matched with the received da