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Certificate key downloading method and system of Internet of Things terminal based on SIM card

A technology of IoT terminal and IoT platform, which is applied in the field of certificate key download, and can solve the problem that the security of the certificate key download method cannot be guaranteed.

Pending Publication Date: 2022-03-04
E SURFING IOT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present invention provides a certificate key download method and system for a SIM card-based Internet of Things terminal, aiming to solve the problem that the security of the existing SIM card-based certificate key download method for an Internet of Things terminal cannot be guaranteed question

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  • Certificate key downloading method and system of Internet of Things terminal based on SIM card
  • Certificate key downloading method and system of Internet of Things terminal based on SIM card
  • Certificate key downloading method and system of Internet of Things terminal based on SIM card

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] It should be understood that the terms "comprising" and "comprising" when used in this specification and the appended claims. It should also be understood that the terms used in this specification of the invention are for the purpose of describing particular embodiments only and not It is not intended to limit the present invention. As used in the present specification and appended claims, unless the context clearly indicates otherwise, the ...

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Abstract

The embodiment of the invention discloses a certificate key downloading method and system of an Internet of Things terminal based on an SIM card, and relates to the technical field of Internet of Things information security. The method comprises the following steps: an Internet of Things terminal sends a certificate key downloading request to an Internet of Things platform through a security module; if first security service control information in the token plaintext is consistent with pre-generated second security service control information and the timestamp is not overtime, the Internet of Things platform generates a certificate key according to the certificate key downloading request and encrypts the certificate key by using a public key to generate a certificate key ciphertext; and the Internet of Things platform sends the certificate key ciphertext to the security module of the Internet of Things terminal. According to the invention, the Internet of Things platform verifies the legality of the Internet of Things terminal accessing the Internet of Things platform, so that the identity security of the Internet of Things terminal is enhanced, and the risk that equipment is falsely used is reduced; and a timestamp is added in the token, so that the control on the timeliness of the certificate key downloading request is enhanced.

Description

technical field [0001] The present invention relates to the technical field of Internet of Things information security, in particular to a method and system for downloading a certificate key of an Internet of Things terminal based on a SIM card. Background technique [0002] The number of IoT terminals is huge, and pre-setting certificates / keys involves many links, including security module suppliers, terminal manufacturers, application integrators, client terminals, etc., which is not convenient for certificate / key management, filling, updating and maintenance. The above problems can be solved by using the terminal to download the certificate / key online, but the system for obtaining the certificate / key online also needs to solve security problems such as terminal identity verification and authorization control in the download process itself, so the security of the online download process must be guaranteed. Not guaranteed. Contents of the invention [0003] The embodimen...

Claims

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Application Information

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IPC IPC(8): H04W12/041H04W12/0431H04W12/0433H04W12/40
CPCH04W12/041H04W12/0431H04W12/0433H04W12/40
Inventor 王芸陆玉兰
Owner E SURFING IOT CO LTD
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