A Concealed Channel Construction Method in Blockchain Network

Abstract

The invention discloses a method for constructing a covert channel in a block chain network, which relates to the technical field of covert data transmission. The specific steps include the following: a first terminal and a second terminal share a key and transaction information, and use the key and the A standard public key address generation algorithm generates a block chain network address; the transaction information includes an arrangement mapping table and the information capacity of a single transaction; the first terminal sends information using an information hiding method, and the first terminal and the second The terminal records the transaction at the same time; the first terminal and the second terminal monitor whether there is a transaction of the account of the blockchain network address on the block chain, and if there is, the second terminal uses an information extraction method to extract information, after the information is extracted, reply the information by using the information hiding method. The present invention proposes a complete covert channel construction method, so that both communication parties can safely transfer information to each other in the covert channel.

Description

technical field [0001] The present invention relates to the technical field of data covert transmission, and more specifically relates to a method for constructing a covert channel in a block chain network. Background technique [0002] There are two main types of data covert communication under network protocols, one is storage-based covert communication with memory function. This method directly or indirectly utilizes the loosely restricted storage space of network devices, and through careful construction, these fields can be used to realize data covert transmission. The second is time-based covert communication with no memory function. This scheme utilizes the time information of the network protocol packet, and the sending parties agree on an algorithm in advance, and achieves the purpose of concealed communication by modulating the time interval of the network packet. This communication does not affect the quality of the communicated data, but may add additional band...

AI Technical Summary

Problems solved by technology

The second is time-based covert communication with no memory

This communication does not affect the quality of the communicated data, but may add additional bandwidth

However, all existing network-based covert communication methods have shortcomings such as being easy to be detected, monitored, and controlled.

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