Text information hiding method resistant to statistic analysis

Abstract

The invention provides a text information hiding method resistant to statistic analysis. The text information hiding method includes that a sender collects a large number of choice questions with the same theme and establishes a question bank which is not required to be shared with a receiver; the sender has the choice questions of the question bank coded based on length of option contents, and selects the choice questions with specified coded values according to secret information and a vivid steganographic text is automatically generated, meanwhile, inserts extra secret information into option arrangement orders of the choice questions of the steganographic text, and rectification of the option display order cannot affect concrete content and various statistical characteristics of the choice questions. Extraction of the secret information can be acquired by calculating the coded values of each question of the steganographic text based on the length of the option contents and the option arrangement orders. The text information hiding method resistant to the statistic analysis is good in hiding performance, large in hiding capacity and strong in resistance to the statistic analysis.

Description

technical field [0001] The invention belongs to the technical field of information security, and specifically refers to a text information hiding method resistant to statistical analysis. Background technique [0002] Since the 1990s, information hiding technology has become an important research hotspot in the field of information security. It achieves the concealment of secret information by embedding secret information in digital media such as images, audio, video, and text in an imperceptible manner. The purpose of safe and reliable storage and transmission is to ensure the security of confidential information of national defense, military, government, business, etc. Text is the most frequently and widely used data carrier on the Internet and in work and life, so the information hiding technology based on text content has its irreplaceable practical value. [0003] At home and abroad, the research on information hiding using text content as a concealed carrier mainly fo...

AI Technical Summary

Problems solved by technology

With the development of text steganalysis technology, the statistical characteristics changed by steganographic operations in many types of texts have been studied, and the existence of information hidden by natural language text information hiding methods has been successfully detected, which leads to the inconsistency of covert channels. Safety

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