Covert communication method, device and system based on blockchain and encryption technology

A covert communication and blockchain technology, applied in the blockchain field, can solve the problems of easy hijacking and tampering of communication data, centralization of communication tools, etc.

Pending Publication Date: 2021-04-02
南京通付盾区块链科技有限公司 +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on the above problems, this application provides a covert communication method, device and system based on blockchain and encryption technology, which solves the problem that communication data is easily hijacked and tampered with and the problem of centralization of communication tools

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  • Covert communication method, device and system based on blockchain and encryption technology
  • Covert communication method, device and system based on blockchain and encryption technology
  • Covert communication method, device and system based on blockchain and encryption technology

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Embodiment Construction

[0034] In order to make the purposes, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the exemplary embodiments of the present application. , the described exemplary embodiments are only some of the embodiments of the present application, but not all of the embodiments.

[0035] refer to figure 1 , figure 1 A covert communication method based on block chain and encryption technology is shown, which is applied to the data sender, and the method steps include:

[0036] S1: The data sender constructs the start message identifier S_M, end message identifier E_M, AES symmetric key K1 and hash key K2 and shares the start message identifier S_M and end message identifier with the data receiver in a secure manner E_M, AES symmetric key K1 and hash key K2; the...

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Abstract

The invention discloses a covert communication method, device and system based on a blockchain and an encryption technology, and the method comprises the steps that a data sender carries out the preprocessing of original communication data M through employing the symmetric encryption technology, obtains encrypted data M', and converts the encrypted data M' into a binary bit stream B_M'as transmission data; the data sender transmits the transmission data by adopting a P2P network of a block chain; the transmission step comprises: constructing a block chain address library, encoding a block chain address in the block chain address library, and sending the transmission data according to the encoded block chain address; and the data receiver receives and extracts the transmission data, converts the transmission data into encrypted data M', and decrypts the encrypted data M' to obtain original communication data M. According to the technical scheme, the problems that communication behaviorsand communication contents are easy to identify, information leakage is caused due to the fact that communication data is transmitted in a plaintext form, the communication data is easy to hijack andtamper, and a communication tool is centralized are solved.

Description

technical field [0001] The present invention relates to the field of block chain technology, in particular to a covert communication method, device and system based on block chain and encryption technology. Background technique [0002] Existing communication methods often use centralized communication tools such as WeChat, email, and social networks to transmit information such as pictures, texts, and videos. However, these centralized communication tools must transmit information through servers. Therefore, the server is prone to single-point attacks. If the server is attacked, the information cannot be sent, the information is tampered with, or even the information is deleted. [0003] Therefore, there is an urgent need to provide a technical solution to solve the problem that communication data is easily hijacked and tampered with and the problem of centralization of communication tools. Contents of the invention [0004] Based on the above problems, this application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06
CPCH04L9/0643H04L9/0631H04L9/50
Inventor 汪德嘉刘九良宋超
Owner 南京通付盾区块链科技有限公司
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