Note on the channel capacity of narrowband subliminal channels in one-way function

DONG Qing-kuan1; 2; LI Xiao-ping3

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Note on the channel capacity of narrowband subliminal channels in one-way function

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- Note on the channel capacity of narrowband subliminal channels in one-way function
- Vol. 30, Issue 10, Pages: 124-127(2009)
- 作者机构：
  
  1. 西安电子科技大学综合业务网国家重点实验室
  2. 中国科学院研究生院信息安全国家重点实验室
  3. 西安电子科技大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918.1
- Published：2009
- 稿件说明：
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DONG Qing-kuan1, 2, LI Xiao-ping3. Note on the channel capacity of narrowband subliminal channels in one-way function[J]. 2009, 30(10): 124-127.
DOI：

DONG Qing-kuan1, 2, LI Xiao-ping3. Note on the channel capacity of narrowband subliminal channels in one-way function[J]. 2009, 30(10): 124-127. DOI：

摘要

为有效评估窄带阈下信道传递阈下信息的能力

对建立在密码学单向函数中的窄带阈下信道的容量进行了研究。分析了Kobara和Imai基于信息论观点给出的该类窄带阈下信道实际可达信道容量的定义

指出这种容量的定义方式没有考虑单次通信时的误码率问题

而这对阈下通信环境非常重要。针对基于信息论的容量定义的不足

给出了基于误码率来计算信道容量的方法

具有更好的实用性。

Abstract

The channel capacity of narrowband subliminal channels in one-way function was studied to effectively evaluate the ability of subliminal channels to transmit subliminal messages. The definition of Kobara and Imai on the practical channel capacity of narrowband subliminal channels in information-theoretic view was analyzed and its limitation that the bit error ratio in one-time subliminal communication was not considered was pointed out. The bit error ratio is very important in one-time subliminal communication. A new method to calculate the size of the narrowband subliminal channels is presented to reduce the above limitation

which is very practical in applications.

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Related Institution

State Key Laboratory of Integrated Services Networks, Xidian University

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