Text coverless information hiding method based on synonyms expansion and label delivery mechanism

Zhen ZHANG; Jiaming NI; Ye YAO; Lichun GONG; Yujuan WANG; Guohua WU

doi:10.11959/j.issn.1000-436x.2021139

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Text coverless information hiding method based on synonyms expansion and label delivery mechanism

Papers | 更新时间：2024-06-05

- Text coverless information hiding method based on synonyms expansion and label delivery mechanism
- Journal on Communications Vol. 42, Issue 9, Pages: 173-183(2021)
- 作者机构：
  
  杭州电子科技大学网络空间安全学院，浙江杭州 310018
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(62071267)
- DOI：10.11959/j.issn.1000-436x.2021139
  CLC： TP309
- Online First：2021-09，
  
  Published：25 September 2021
- 稿件说明：
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Zhen ZHANG, Jiaming NI, Ye YAO, et al. Text coverless information hiding method based on synonyms expansion and label delivery mechanism[J]. Journal on Communications, 2021, 42(9): 173-183.
DOI：

Zhen ZHANG, Jiaming NI, Ye YAO, et al. Text coverless information hiding method based on synonyms expansion and label delivery mechanism[J]. Journal on Communications, 2021, 42(9): 173-183. DOI： 10.11959/j.issn.1000-436x.2021139.

摘要

为了解决传统文本信息隐藏方法隐藏容量低、抗检测性弱等问题，提出一种基于同义词扩展和标签传递机制的文本无载体信息隐藏方法。该方法将秘密信息切分成若干个关键词，分别嵌入不同的文本载体中。考虑到汉语中同义词的可替换性，使用基于知网的词语相似度计算方法筛选符合上下文语义的同义词，尽可能将不同的关键词或其同义词嵌入同一文本中，以此来提升隐藏容量。同时，记录每篇文本中所有被隐藏关键词的标签信息，将其按固定格式转换为二进制序列，作为秘密信息生成载体文本。最后，将自然载体文本和生成载体文本一起发送给接收方完成秘密通信。实验结果表明，所提方法的隐藏容量与传统方法相比有了较大的提升，具有较强的抗检测能力，使用小型载体文本数据库即可实现完整的信息隐藏和提取，减少了建立和维护索引数据库的开销。

Abstract

To solve the problems of low hiding capacity and weak detection resistance

a method of coverless information hiding based on synonyms expansion and label delivery mechanism was proposed.To begin the proposed method

the secret information were divided into several keywords

then those keywords were embedded in different carrier texts respectively.Considering the interchangeability of synonyms in Chinese

using the word similarity calculation method based on HowNet

it was possible to filter synonyms which met the contextual semantics.For the purpose of increasing hiding capacity

various keywords or their synonyms were embedded in the same carrier text as much as possible.At the same moment

when recording the positional parameters of the secret information in each carrier text

those parameters were converted into a binary sequence in a fixed format

which was used to generate carrier text.Finally

the carrier texts and generated text were sent to the receiver.Comparison of the results with those of other studies confirm that the proposed method not only makes great improvement in hiding capacity and detection resistance

but also reduces the overhead of establishing and maintaining databases by using small text database.

关键词

Keywords

references

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