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Encryption and decryption system and method for Internet of Things equipment

An Internet of Things device, encryption and decryption technology, applied in the field of encryption and decryption systems of Internet of Things devices, can solve the problems of high development cost, high functional redundancy, and no external sales, and achieve the effect of reducing research and development costs and simplifying technical means.

Inactive Publication Date: 2019-08-16
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are only a few companies in the market that focus on the research and development of encrypted communication technology for the Internet of Things, and their encrypted communication equipment is basically limited to internal use of the company, not for sale, and its equipment is mainly used in mobile terminals such as mobile phones and tablets. High functional redundancy, high development costs, not suitable for low-cost development solutions for IoT devices

Method used

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  • Encryption and decryption system and method for Internet of Things equipment
  • Encryption and decryption system and method for Internet of Things equipment
  • Encryption and decryption system and method for Internet of Things equipment

Examples

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Effect test

Embodiment 1

[0041] Such as figure 1 As shown, an encryption and decryption communication system for an Internet of Things device is characterized in that it includes an encrypted communication node 1 and an Internet of Things device 2, and the encrypted communication node 1 includes a control module 3, a SHA module 4, an RSA module 5, a DES Hardware encryption and decryption module 7 and SPI communication module 6; described control module 3 is connected with SHA module 4, RSA module 5, DES hardware encryption and decryption module 7, SPI communication module 6 respectively, and described SPI communication module 6 is connected with object Networking devices 2 are connected;

[0042] Described control module 3 is used for analyzing data and controlling SHA module 4, RSA module 5, DES hardware encryption and decryption module 7 and SPI communication module 6;

[0043] The SHA module 4 is used to extract message summary information from the ciphertext data of the Internet of Things device ...

Embodiment 2

[0051] Such as figure 2 as well as image 3 As shown, an encryption and decryption method for an Internet of Things device comprises the following steps:

[0052] Such as figure 2 As shown, the encryption process is as follows:

[0053] S1: Initialize each module, and set the symmetric secret key and the private key and public key of the RSA module 5 through the IoT device 2;

[0054] S1: The IoT device 2 transmits the plaintext and the symmetric key to the DES hardware encryption and decryption module 7 through the SPI communication module 6 for encryption;

[0055] S2: DES hardware encryption and decryption module 7 performs symmetric encryption through plaintext and symmetric key to generate ciphertext;

[0056] S3: The ciphertext generated by the DES hardware encryption and decryption module 7 is transmitted to the SHA module 4 and the ciphertext summary is obtained through a hash algorithm;

[0057] S4: The ciphertext digest generated by the SHA module 4 and the pr...

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Abstract

The invention relates to an encryption and decryption communication system and method for the Internet of Things equipment. The system comprises an encryption communication node and the Internet of Things equipment, and the encryption communication node comprises a control module, an SHA module, an RSA module, a DES hardware encryption and decryption module and an SPI communication module; the control module is respectively connected with the SHA module, the RSA module, the DES hardware encryption and decryption module and the SPI communication module, and the SPI communication module is connected with the Internet of Things equipment. According to the present invention, the double security assurance is formed through the digital signatures generated by the RSA module and the SHA module and the symmetric encryption of the DES module, the technical means is simplified, the research and development cost is greatly reduced, and the Internet of Things equipment have the hardware security protection, the data security is improved, and the control right security of the device is ensured.

Description

technical field [0001] The present invention relates to the field of information encryption, and more specifically, to an encryption and decryption system and method for Internet of Things devices. Background technique [0002] At present, there are only a few companies in the market that focus on the research and development of encrypted communication technology for the Internet of Things, and their encrypted communication equipment is basically limited to internal use of the company, not for sale, and its equipment is mainly used in mobile terminals such as mobile phones and tablets. High functional redundancy and high development costs are not suitable for low-cost development solutions for IoT devices. At present, under the background that the security of IoT devices is getting more and more attention from the industry, it is necessary to develop an encrypted communication system solution with high functional integration and low development cost. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06H04L9/30H04L9/32H04L29/08
CPCH04L9/0643H04L9/0625H04L9/302H04L9/3249H04L9/3239H04L67/12
Inventor 张景龙熊晓明陆江城
Owner GUANGDONG UNIV OF TECH
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