Text steganography detection method and system based on recurrent neural network

Abstract

The invention discloses a text steganography detection method and system based on a recurrent neural network, and the method comprises the steps: obtaining a word vector matrix, and converting a to-be-detected text into an input word vector sequence according to the word vector matrix; inputting the input word vector sequence into a pre-constructed recurrent neural network model, and generating afeature vector representing a correlation between words of the text to be detected; classifying the feature vectors through a classifier, and judging whether the to-be-detected text contains hidden information or not; and if the to-be-detected text contains the hidden information, estimating the information embedding rate of the to-be-detected text according to the difference of the steganographictext feature vectors under different embedding rates. According to the method, the recurrent neural network is applied to text steganography detection, whether a text carrier contains hidden information or not can be effectively identified, and the capacity of the hidden information is accurately estimated according to statistical distribution of extraction characteristics.

Description

technical field [0001] The invention relates to the technical field of text information communication, in particular to a text steganographic detection method and system based on a cyclic neural network. Background technique [0002] In his monograph on information security, Shannon summarizes three basic information security systems: encryption system, privacy system and concealment system. [0003] 1. An encryption system encodes information in a special way so that only authorized parties can decode it and unauthorized parties can decode it. It ensures the security of information by making messages difficult to read. [0004] 2. The privacy system is mainly to restrict access to information so that only authorized users can access important information, and unauthorized users cannot access it in any way under any circumstances. However, while these two systems ensure information security, they also expose the existence and importance of information, making it more vulne...

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Problems solved by technology

[0004] 2. The privacy system is mainly to restrict access to information so that only authorized users can access important information, and unauthorized users cannot access it in any way under any circumstances

However, while these two systems ensure information security, they also expose the existence and importance of information, making it more vulnerable to attacks such as interception and cracking

[0005] 3. The hidden system is very different from these two secrecy systems

Such powerful generative text steganography algorithms, if exploited by criminals, will pose a potential threat to cyberspace and public safety

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