Lightweight narrowband Internet-of- Things secure transmission method and system

A narrowband Internet of Things and secure transmission technology, applied in the field of narrowband Internet of Things secure transmission methods and systems, can solve problems such as data leakage, and achieve the effects of ensuring confidentiality, reducing network bandwidth resource consumption, and simplifying data volume

Inactive Publication Date: 2021-06-04
ZHENGZHOU XINDA JIEAN INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of data leakage during data transmission between NB-IoT terminal equipment and the Internet of Things cloud platform, the present invention provides a lightweight narrowband Internet of Things secure transmission method and system, which can realize full-link communication The two-way identity trusted and secure communication ensures the confidentiality, integrity and non-tampering of NB-IoT device communication

Method used

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  • Lightweight narrowband Internet-of- Things secure transmission method and system
  • Lightweight narrowband Internet-of- Things secure transmission method and system
  • Lightweight narrowband Internet-of- Things secure transmission method and system

Examples

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Embodiment 1

[0049] Such as figure 1 As shown, the embodiment of the present invention provides a lightweight narrowband Internet of Things secure transmission method, which is applied to NB-IoT terminals, and the method includes:

[0050] S101: Preset the digital certificate public key of the NB-IoT platform;

[0051] S102: Generate first plaintext data based on business requirements, and use the digital certificate public key of the NB-IoT platform to encrypt the first plaintext data to obtain first ciphertext data;

[0052] S103: Use the digital certificate private key of the NB-IoT terminal to sign the first ciphertext data to obtain first signature information;

[0053] S104: Send the first signature information and the digital certificate SN number of the NB-IoT terminal to the NB-IoT platform, so that the NB-IoT platform can verify the first signature information based on the digital certificate SN number sign and decrypt to obtain the first plaintext data.

[0054] A lightweight...

Embodiment 2

[0062] The embodiment of the present invention provides a lightweight narrowband Internet of Things secure transmission method, which is applied to the NB-IoT platform, and the method includes:

[0063] S201: Receive the first signature information sent by the NB-IoT terminal and the SN number of the digital certificate of the NB-IoT terminal; wherein, the first signature information is that the NB-IoT terminal uses the digital certificate public key of the NB-IoT platform to pair itself based on The first plaintext data generated by business requirements is first encrypted to obtain the second ciphertext data, and then obtained after signing the first ciphertext data with its own digital certificate private key;

[0064] S202: Query the CA system based on the SN number of the digital certificate to obtain the digital certificate of the NB-IoT terminal, and use the public key of the digital certificate of the NB-IoT terminal to verify the first signature information, and pass t...

Embodiment 3

[0074] In order to realize the above-mentioned lightweight NB-IoT secure transmission method, an embodiment of the present invention also provides a lightweight NB-IoT secure transmission system, such as image 3 As shown, it includes: NB-IoT terminal, NB-IoT platform and CA system; wherein, the NB-IoT terminal includes MCU, encryption module and NB-IoT communication module;

[0075] The NB-IoT terminal is used to preset the digital certificate public key of the NB-IoT platform; the MCU is used to generate the first plaintext data based on business requirements; the cryptographic module is used to adopt the digital certificate public key of the NB-IoT platform Encrypt the first plaintext data to obtain first ciphertext data; use the digital certificate private key of the NB-IoT terminal to sign the first ciphertext data to obtain first signature information; the NB-IoT communication module It is used to send the first signature information and the digital certificate SN number...

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Abstract

The invention provides a lightweight narrowband Internet-of- Things secure transmission method and system. The method comprises the following steps: step 1, presetting a digital certificate public key of an NB-IoT platform; step 2, generating first plaintext data based on a service demand, and encrypting the first plaintext data by using a digital certificate public key of the NB-IoT platform to obtain first ciphertext data; step 3, signing the first ciphertext data by adopting a digital certificate private key of the NB-IoT terminal to obtain first signature information; and step 4, sending the first signature information and a digital certificate SN number of the NB-IoT terminal to the NB-IoT platform, so that the NB-IoT platform performs signature verification and decryption on the first signature information based on the digital certificate SN number to obtain the first plaintext data. According to the invention, bidirectional identity credibility and secure communication of full-link communication can be realized, and confidentiality, integrity and non-tampering performance of NB-IoT device communication are guaranteed.

Description

technical field [0001] The present invention relates to the technical field of narrowband internet of things, in particular to a lightweight secure transmission method and system of narrowband internet of things. Background technique [0002] In the era of the Internet of Everything, people expect to use the Internet of Things to realize information interaction and communication between people and things and between things, so as to obtain a more convenient life experience. The cellular-based Narrow Band Internet of Things (NB-IoT) is an important branch of the Internet of Everything, featuring massive connections, fragmented services, and open services. [0003] At present, NB-IoT application scenarios include: smart door locks, smart cities, smart meters, smart street lights, etc. The IoT cloud platform integrates the data reported by the NB module, and analyzes and uses effective data. [0004] In the scenario where a large number of NB-IoT terminal devices are connected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W12/06H04L9/32H04W12/069
CPCH04L9/3247H04L9/3263H04W12/02
Inventor 李汶昊王广辉李鑫孙晓鹏廖正赟
Owner ZHENGZHOU XINDA JIEAN INFORMATION TECH
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