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Blockchain-oriented Internet of Things chip lightweight data encryption method

An IoT chip and data encryption technology, applied in the field of IoT information security, can solve the problems of blockchain + IoT system security loopholes, lack of adaptability, etc., to ensure the credibility of the source, ensure security, and avoid malicious tampering or the effect of malicious snooping

Active Publication Date: 2020-10-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the lack of adaptability between the current IoT devices and the blockchain, there are still many security loopholes in the blockchain + IoT system

Method used

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  • Blockchain-oriented Internet of Things chip lightweight data encryption method
  • Blockchain-oriented Internet of Things chip lightweight data encryption method
  • Blockchain-oriented Internet of Things chip lightweight data encryption method

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Embodiment Construction

[0031] The embodiments and effects of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] The traditional Internet of Things system can effectively guarantee the safe collection and on-chain process of off-chain data, while the blockchain system can ensure the immutability and traceability of data on the chain. The integration of blockchain and the Internet of Things can effectively improve the security of equipment and data, ensure the credibility of the process, and realize the collaborative operation of multiple subjects. However, due to the lack of adaptability between the current IoT devices and the blockchain, there are still many security loopholes in the blockchain + IoT system. Therefore, realizing the encryption technology adaptation of the Internet of Things and the blockchain system is one of the problems that need to be solved urgently.

[0033] The present invention is oriented to the lightweight data...

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Abstract

The invention belongs to the technical field of Internet of Things information security, and particularly relates to a blockchain-oriented Internet of Things chip lightweight data encryption method. The method specifically comprises the following steps: an Internet of Things terminal generates a public and private key by using a true random number, obtains a digital certificate through a certificate issuing mechanism, and exchanges a symmetric key with a block chain gateway by using an ECDH key exchange algorithm; and the blockchain gateway receives the digital certificate and the public key from the Internet of Things terminal and submits a transaction request to the alliance blockchain. And the alliance block chain uplinks the trusted device list after endorsement and sorting. And if thedata user requests to use the data, the Internet of Things terminal sends the ciphertext data to the block chain gateway and attaches an ECDSA digital signature, and the block chain gateway forwardsthe ciphertext data to the data user. And the data user queries the trusted device list on the chain and verifies the digital signature by using the trusted public key so as to ensure that the data source is real and trusted. According to the invention, credible data source, safe data transmission and credible sharing on the data link can be realized.

Description

technical field [0001] The invention belongs to the technical field of Internet of Things information security, and in particular relates to a lightweight data encryption method for a block chain-oriented Internet of Things chip. Background technique [0002] Encryption technology focuses on the issue of information confidentiality, and also involves information integrity verification, non-repudiation of information release, and all information security issues generated in distributed computing from internal and external attacks. At present, encryption technology has multiple branches such as symmetric encryption technology, asymmetric encryption technology and irreversible encryption technology, which are the theoretical basis and core technology of information security. [0003] The Internet of Things is a ubiquitous connection between things and things, things and people through network access. It is the information carrier of the Internet, traditional telecommunication n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/08H04L9/32H04L29/08
CPCH04L9/0825H04L9/3247H04L63/0435H04L63/061H04L63/126H04L67/10H04L67/12
Inventor 李凤岐王平川范永刚张璐鹏
Owner DALIAN UNIV OF TECH
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