Steganography evaluation based steganalysis method

Abstract

The invention discloses a steganography evaluation based steganalysis method. The steganography evaluation based steganalysis method comprises the steps of: (1) establishing a reference feature set containing a plurality of steganographic features; (2) performing steganography on a group of original text {Xi} by adopting a to-be-analyzed steganographic algorithm to generate a corresponding group of hidden text {Yi}; (3) selecting partial features in the reference feature set as inspecting features, calculating a inspecting feature vector of each sample in both the original text set and the hidden text set to respectively obtain feature vector sets {xi} and {yi} of both the original text set and the hidden text set; (4) evaluating effectiveness of each component of each inspecting feature vector serving as each hidden writing feature based on {xi} and {yi}; (5) repeating steps (3) and (4) for multiple times to obtain an effectiveness evaluation result of a group of feature vector components; and (6) selecting a plurality of components from an effectiveness evaluation result to build a new feature vector, performing redundancy elimination to obtain feature vectors of the steganographic algorithm for the steganalysis on the to-be-analyzed steganographic algorithm, and detecting if the to-be-analyzed steganographic algorithm contains hidden information. The steganography evaluation based steganalysis method, disclosed by the invention, has the advantage of greatly improving realization efficiency of steganalysis.

Description

technical field [0001] The invention relates to a steganalysis method, in particular to a steganalysis method based on steganalysis evaluation, which belongs to the information hiding subfield in the information security technical field. Background technique [0002] With the development of computer and network technology, the use of digital content is becoming more and more common, and modern steganography technology based on digital content has gained more and more attention. Steganography can embed confidential information in the carrier data without affecting the perceived content and quality of the carrier data, and improve the security of confidential data transmission or storage by concealing the existence of confidential communication or confidential storage. According to reports, steganography has been exploited by criminals and malicious code. Corresponding to steganography, steganalysis is a technology used to analyze and judge whether the data contains hidden in...

AI Technical Summary

Problems solved by technology

This patent method only describes a specific steganalysis method, and does not consider giving a more generally applicable steganalysis design method, nor does it consider the use of computer-aided design to improve the design and implementation efficiency of steganalysis methods , therefore, the basic purpose, thinking and specific implementation methods of this patent application are obviously different from those of this patent application

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