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A blockchain-based concealed information transmission system and method

A technology of concealing information and transmission methods, applied in the field of concealed channel construction, which can solve problems such as poor security and large amount of data hiding, and achieve the effect of optimizing communication efficiency and economic benefits

Active Publication Date: 2022-05-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is simple and has a large amount of data hiding, but the security is poor

Method used

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  • A blockchain-based concealed information transmission system and method
  • A blockchain-based concealed information transmission system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] On the one hand, as attached figure 1 As shown, the embodiment of the present invention discloses a block chain-based covert information transmission system, including: a sending end, a covert channel, a receiving end, and a public network platform;

[0053] Wherein, the transmitting end is respectively connected with the covert channel and the public network platform; the receiving end is respectively connected with the covert channel and the public network platform.

[0054] In a specific embodiment, the covert channel is a covert communication channel on the blockchain, and the public network platform is a public network platform under the blockchain.

[0055] On the other hand, an embodiment of the present invention discloses a block chain-based covert information transmission method, which is characterized by comprising:

[0056] The sender obtains hidden information;

[0057] The sender obtains the steganographic image according to the hidden information;

[00...

Embodiment 2

[0090] as attached figure 2 , is a schematic diagram of the image steganography model structure of generative adversarial network, A, B, E represent steganographic encoder, steganographic decoder, steganalyzer respectively, M represents hidden information, C represents carrier image, C' represents Steganographic image, M' represents the restored image, P steganographic probability.

[0091] Among them, the carrier image C and the hidden information M are input to the steganographic encoder A to obtain the steganographic image C', and the steganographic image C' is respectively sent to the steganographic decoder B and the steganographic analyzer E, and the steganographic analyzer E The steganographic probability P is output according to the carrier image C and the steganographic image C', and the steganographic decoder B obtains the restored image M' according to the steganographic image C'.

[0092] The specific working principle is as follows: the task of the steganographic...

Embodiment 3

[0095] The information sending end and the information receiving section can pre-determine the rule R of image steganography, the parameter set P of the covert channel of the blockchain network, the image steganography module S, and the image hash algorithm family is {Hash_1, Hash_2, ...}.

[0096] Suppose the information to be transmitted by the sender is M, and the serial number of the information is n (the nth message

[0097] Then, the specific steps of the sender are:

[0098] 1. The sender randomly selects a carrier image F from a certain public network u, and generates a steganographic image FS=S(F, M, R) through the steganographic module;

[0099] 2. Publish the carrier image and steganographic image through a public network platform;

[0100] 3. Randomly select the i-th hash function to calculate Hashi (FS) to obtain the image hash Hs of the steganographic image, send (n, HS, i, u) through the covert channel on the blockchain chain, and wait for the receiving end to co...

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Abstract

The invention discloses a block chain-based covert information transmission system and method, which belongs to the field of covert channel construction and includes: a sending end, a covert channel, a receiving end, and a public network platform. The present invention achieves the concealed information transmission of a large amount of data by combining the covert channel and image steganography on the block chain, so that the channel capacity, communication efficiency and economic benefits of the covert channel of the block chain network can be effectively optimized.

Description

technical field [0001] The invention relates to the technical field of covert channel construction, and more particularly to a block chain-based covert information transmission system and method. Background technique [0002] At present, there is little research on data covert communication technology based on blockchain network. The simplicity of blockchain network and its unique economic characteristics make it more challenging to compare with traditional network covert communication technology: on the premise of economic benefits Under the requirements of the blockchain, we cannot develop a covert information transmission method with a large amount of data on the blockchain, and the covert channel established through the blockchain network is expensive. [0003] In addition, the data concealment communication under the network protocol in the prior art mainly focuses on the TCP / IP protocol suite, and is mainly divided into two types. [0004] The first is the storage-bas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/40H04L9/06H04N1/32
CPCH04L63/0428H04L9/0643H04N1/32267H04N1/32272H04L2209/16H04L9/50
Inventor 陈艳姣汪旭
Owner ZHEJIANG UNIV
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