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Distributed cross-device access control method and device suitable for smart home environment

An access control and smart home technology, applied in secure communication devices, user identity/authority verification, digital transmission systems, etc., can solve the problems of incomplete coverage of access control and easy forgery of verification information, so as to reduce resource overhead and get rid of Rely on, avoid the effect of attack

Active Publication Date: 2022-04-12
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] This application provides a distributed cross-device access control method and device suitable for smart home environments to solve security problems in related technologies due to incomplete coverage of access control, loopholes in the verification mechanism, or easy forgery of verification information.

Method used

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  • Distributed cross-device access control method and device suitable for smart home environment
  • Distributed cross-device access control method and device suitable for smart home environment
  • Distributed cross-device access control method and device suitable for smart home environment

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Embodiment Construction

[0047] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0048] The framework that can be applied for includes two entities, the subject and the subject. The subject is the sender of the request, which requests access rights and sends corresponding credentials; verify. In the subsequent description of this application, Access Token (AT) represents the access verification credential corresponding to the process; RefreshToken (RT) represents the update credential corresponding to the process; Proxy represents the proxy deployed on the host and object.

[0049] Hash-ba...

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Abstract

The invention discloses a distributed cross-device access control method and device suitable for a smart home environment, and the method comprises the steps: enabling an access subject and an accessed object to obtain an access control rule; the subject establishes a connection with the object, the subject sends a connection request, and the object sends an access verification credential and an update credential to the subject after performing validity verification on the identity and authority of the object; the subject sends a request carrying an access verification certificate to the object after receiving the access verification certificate, and adds a random number into a request packet; after legitimacy and validity verification of the access verification credential and the random number is passed, the object executes the content of the request and returns a request result to the subject; when the access verification credential expires, the subject sends an update credential to the object and sends a random number at the same time; after the validity and validity verification of the update voucher and the random number is passed, the object generates a new access verification voucher and an update voucher corresponding to the new access verification voucher again based on the access control rule; and the main body replaces the original access verification voucher and the updating voucher to carry out subsequent requests. Therefore, the security of cross-device communication of the smart home can be effectively enhanced, and connection of malicious devices and requests of malicious applications are prevented.

Description

technical field [0001] The present application relates to the technical field of access control, in particular to a distributed cross-device access control method and device suitable for a smart home environment. Background technique [0002] Cross-device signal transmission enables users to control remote devices by operating applications on local devices, which improves the convenience and intelligence level of smart homes, but at the same time, there are many security issues in cross-device signal transmission. On the one hand, it needs To verify the identity of the device and the legitimacy of the transmitted content, on the other hand, it is necessary to ensure the reliability of the transmission process. [0003] Access control is a technology used to ensure that the access subject can legally access the object. The realization of an access control scheme requires the participation of access control architecture and access control strategy, which provide structural and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/40H04L9/32H04L67/1095H04L67/1097H04L67/146H04L67/566
CPCY02P90/02
Inventor 李琦何艺徐恪张晗
Owner TSINGHUA UNIV
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