Internet of Things data security system based on trust

By constructing a trust-based IoT data security system, the problems of single identity authentication, disconnect between data transmission and trust assessment, and lack of cross-domain trust interoperability in IoT systems are solved, and the effectiveness of device authentication, data transmission security, and multi-scenario collaborative protection is achieved.

CN121333658APending Publication Date: 2026-01-13BEIJING CHUANGLIAN YUNRUI TECH CO LTD
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Patent Information

Application Number
CN202511424345.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Existing IoT systems lack a full lifecycle protection mechanism based on 'trust relationships', resulting in a single identity authentication mechanism, a disconnect between data transmission and trust assessment, static trust values, and a lack of trust interoperability between cross-domain devices, thus creating security vulnerabilities.

Method used

By employing a hierarchical trust assessment module, a dynamic trust update module, a trust risk prediction and self-learning optimization module, a trust binding encrypted transmission module, and a cross-domain trust collaboration module, a three-dimensional model of identity-data-behavior is constructed to achieve quantitative trust assessment of device identity legitimacy, data integrity, and behavioral compliance, and cross-domain trust collaboration is realized through a distributed trust alliance chain.

Benefits of technology

It achieves deep integration of trusted device identity verification, data transmission and trust assessment, dynamically adjusts trust status, ensures secure collaborative protection in multiple scenarios, and avoids device identity impersonation, data tampering and the superposition of cross-system security risks.

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Abstract

The invention belongs to the technical field of data security, and particularly relates to a trust-based Internet of Things data security system, which comprises a hierarchical trust evaluation module used for converting equipment identity legality, data integrity and behavior compliance into quantifiable trust values through an identity-data-behavior three-dimensional model; and the dynamic trust updating module is used for realizing periodic updating of trust values, linkage authority control of trust levels, and abnormity repair and access blocking of low-trusted equipment according to trust data acquired in real time, and ensuring synchronization of a trust state and an actual safety condition of the equipment. According to the invention, a multi-factor identity authentication mechanism of equipment hardware fingerprint + dynamic token + cloud identity verification is constructed through the hierarchical trust evaluation module, so that equipment identity credible verification is realized, and the risks of identity counterfeiting and certificate leakage are resisted.
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