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:
Apr. 20, 2021
Filed:
Jan. 13, 2021
Peking University, Beijing, CN;
Gang Huang, Beijing, CN;
Xuanzhe Liu, Beijing, CN;
Huaqian Cai, Beijing, CN;
Lingxuan Hu, Beijing, CN;
Hai'ou Jiang, Beijing, CN;
PEKING UNIVERSITY, Beijing, CN;
Abstract
A permission management method for a trustworthiness mechanism of a big-data blockchain includes: dividing system resources into user-role resources, data resources and node resources; acquiring a current role of a user based on a RBAC module in a R-TBAC model, and acquiring an operating-permission-value range of the current role; monitoring an operating behavior of the user in an operating system, and, based on the RBAC module and according to the operating-permission-value range of the current role, detecting whether the current role of the user has a role-operating permission for the operation; detecting a task-operating permission of the contract instance or task instance based on a TBAC module in the R-TBAC model during running of the contract instance or task instance; and completing, by the user, the operation in an authorized operating permission range based on the R-TBAC model.