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Block chain data hidden transmission method supporting dynamic label

A transmission method and data concealment technology, applied in digital transmission systems, transmission systems, secure communication devices, etc., can solve the problems of easy identity exposure and low concealment, and achieve the effect of high concealment and strong anonymity

Pending Publication Date: 2022-05-31
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the technical problems of easy exposure of identity and low concealment in existing data covert transmission methods, and creatively propose a block chain data covert transmission method that supports dynamic tags

Method used

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  • Block chain data hidden transmission method supporting dynamic label
  • Block chain data hidden transmission method supporting dynamic label
  • Block chain data hidden transmission method supporting dynamic label

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] like figure 1 As shown in the figure, a method for concealed data transmission based on a blockchain network includes the following processes:

[0036] Step 1: Off-chain key exchange.

[0037] The sender and the receiver negotiate a key for generating a variable tag, at the same time, negotiate two random numbers for calculating the length of the tag, and a variable tag security for the sender to generate and the receiver to filter. pseudo-random function.

[0038] In this embodiment, the details are as follows:

[0039] A key K and a random number r are pre-negotiated between the sender and receiver, where K←{0,1} λ , K is used to generate variable labels, r is a pre-negotiated random number used to obfuscate the length of the label, λ represents the security parameter, λ=2 k , indicating that the value of λ is an integer power of 2, where k represents the number of powers; Represents an integer within λ / 2.

[0040] At the same time, the sender and receiver ne...

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Abstract

The invention relates to a block chain data hidden transmission method supporting a dynamic label, and belongs to the technical field of block chain data transmission. According to the method, the block chain network is adopted to replace a traditional network, the sender and the receiver realize hidden data transmission through transactions in the block chain network without using own IP addresses, an attacker is prevented from tracing the identities of the sender and the receiver through the IP addresses, and the anonymity is high. Meanwhile, the sending address and the receiving address of the special transaction are randomly generated one-time addresses, the two parties participating in data hidden transmission screen the special transaction through the variable labels, the enemy cannot recognize the special transaction according to the account number characteristics, and the concealment is high.

Description

technical field [0001] The invention relates to a block chain data concealment transmission method supporting dynamic labels, and belongs to the technical field of block chain data transmission. Background technique [0002] Concealed data transmission refers to hiding the data to be transmitted in real communication data, so as to achieve the purpose of concealing data transmission in an open network channel. An effective data concealment transmission mechanism needs to hide the communication behavior between the sender and the receiver under the monitoring of the monitoring party, which has a strong technical challenge. Therefore, it is of great significance to study the concealed transmission method of data with strong concealment and anonymous identity for realizing the transmission of sensitive data such as information under open channels. [0003] Blockchain is a new technology system with a decentralized architecture, which provides a favorable scenario for the appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0838H04L9/0863H04L9/0869Y02A10/40
Inventor 祝烈煌张璨徐畅刘莹雪
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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