A trust-based cross-domain security access control method

Abstract

The invention discloses a cross-domain security access control method based on the credibility. The cross-domain security access control method based on the credibility comprises the that entity attribute information is initialized, a certificate is registered, an access request is sent, the credibility and sensitive information are verified, information is submitted and sent, information communication is conducted, and the credibility is re-checked. According to the cross-domain security access control method based on the credibility, the credibility attribute, the aging attribute, a time attenuation function and the sensitive attribute information are added based on a traditional cross-domain access control method, in this way, on one hand, the sensitive attribute is protected by comparing a credibility value with a sensitive attribute value, the final roles of a user is determined according to other attributes of the user after a role set of users is determined through the credibility values of the users, and the access right of a subject is determined according to an access control policy; on the other hand, the problem that the user behaves well at the early stage and conducts hostile attacks at the later stage can be solved, and system access security and reliability are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of network information data security, and in particular relates to a trust-based cross-domain security access control method. Background technique [0002] Aiming at the security access problem of access subjects, researchers mainly use access control mechanism to effectively block illegal subjects from accessing node resources. However, in the environment of the Internet of Things, due to the diversity of terminal types, wide distribution range, heterogeneity of network types, mobility of nodes and complexity of business applications, the access and access control mechanism of the Internet of Things becomes difficult. Complexity and variety, especially the problem of secure access to cross-domain resources caused by the application of cloud storage technology, further increases the complexity of terminal device access and access control. [0003] Traditional access control models mainly include discretiona...

AI Technical Summary

Problems solved by technology

In the process of access control, the traditional access control model will have great security risks, and the traditional access control model mainly solves the access control of a single security domain

Therefore, it is not suitable for open network environments, and the access granularity is relatively coarse, which is not conducive to the realization of unified global access control.

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