Smart grid access control method based on access trust degree and fast permission assignment

Abstract

The invention discloses a smart grid access control method based on access trust degree and fast authority allocation, including deploying a smart grid system; a smart grid dispatch center is responsible for powering the data control center according to the actual needs of the smart grid data control center; the smart grid data After the detection and authentication module of the control center completes the access authentication, it sends the detection and authentication information to the trust degree calculation module, and the trust degree calculation module performs the trust degree calculation processing on the detection and authentication information and transmits the trust degree calculation result to the access granularity allocation module. The module performs fine-grained allocation according to the trust degree calculation result and maps it with the common permission set calculation module and the advanced permission allocation module to obtain the final access permission range. Set up a trust degree calculation module to prevent internal resources from being illegally accessed and ensure the access security of the system. The setting of the common permission set calculation module improves the efficiency of smart grid permission allocation under the premise of ensuring security.

Description

technical field [0001] The invention belongs to the field of access control, and relates to terminal access trust degree calculation and user authority distribution in a smart grid, in particular to a smart grid user access authorization method. Background technique [0002] In today's world, gradually replacing fossil energy with renewable energy, building an innovative system of energy use, completely transforming the existing energy utilization system with information technology, and maximizing the energy efficiency of the power grid system are the challenges of energy development in various countries. Therefore, the smart grid came into being. The idea of ​​the smart grid is to develop, transport, store, convert (power generation), transmit, distribute, supply, sell, service, and store energy resources with various electrical equipment and other energy consumption of energy end users through a communication network. The facilities are connected together to achieve preci...

AI Technical Summary

Problems solved by technology

Due to the complexity of smart grid information integration, there will be the following defects in the security of using the existing access control technology directly in the smart grid: (1) At present, most of the application systems use role-based access control (RBAC ) model access control technology, but RBAC is insufficient in the security of cross-domain access

However, the division of attributes is more complicated, and the impact of the role's environment (such as physical location, network location, etc.) on access control is not considered.

(3) Behavior-based access control integrates relevant information such as roles, temporal states, and environmental states, and can flexibly handle various access control issues. However, the constraints and management strategies among roles, temporal states, and environments need to be further developed Research

(4) There are two types of context-related access control: location-based access control and temporal-based access control. This type of access control technology can determine which users are valid according to the user's current location or temporal constraints, and It can achieve space responsibility isolation restrictions, location-based timing restrictions, etc., but the interaction of various factors needs further study

Images