Subliminal channel hiding communication method based on authentication code

Abstract

The invention provides a subliminal channel hiding communication method based on an authentication code. The subliminal channel hiding communication method is applied to perception layer communication of the internet of things. Sensitive information is embedded into the authentication code through a base station and is broadcasted and sent together with raw information, information authentication of all nodes is completed, and meanwhile the sensitive information can also be extracted from the authentication code which already passes through authentication through a hiding communication node. Other nodes cannot know whether hiding information is contained in a data package or not and cannot acquire any information from the data package, and difficulty of decoding of the sensitive information is increased. According to the method, a hiding channel of an existing algorithm is used, communication cost is not increased, and safety of data communication is improved at the same time.

Description

technical field [0001] The invention belongs to the field of the Internet of Things, and in particular relates to a method for ensuring data concealment communication of the perception layer of the Internet of Things. Background technique [0002] The sensing layer of the Internet of Things is composed of a large number of cheap micro-sensor nodes deployed in the monitoring area, forming a multi-hop self-organizing network system through wireless communication. information and send it to observers. With the development of the Internet of Things, the existing functions are not only one-way collection and transmission of data by nodes, but in more applications, network managers or nodes need to send control information, management information, query information and interactive information, etc., to guide The sensor nodes complete the collection work. [0003] During the operation of the Internet of Things perception layer network, the attacker can obtain network information ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of low security and high energy consumption of the security mechanism in the communication process of the perception layer of the Internet of Things, and propose a subthreshold channel concealment communication method suitable for the data communication of the perception layer of the Internet of Things. Information security and integrity, to solve the problem that ciphertext is more vulnerable to attacks in the traditional communication process. At the same time, the symmetric key encryption algorithm is used to embed sensitive information into the authentication code, which greatly reduces the calculation and communication overhead, and simplifies encryption. key management process

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