计算机工程 ›› 2007, Vol. 33 ›› Issue (21): 149-151.doi: 10.3969/j.issn.1000-3428.2007.21.053

• 安全技术 • 上一篇    下一篇

语音混沌保密通信系统中的信息隐藏

卢 鹏,季晓勇   

  1. (南京大学电子科学与工程系,南京 210093)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-11-05 发布日期:2007-11-05

Information Hiding in Chaos-based Secure Communication System

LU Peng, JI Xiao-yong   

  1. (Department of Electronic Science and Engineering, Nanjing University, Nanjing 210093)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-05 Published:2007-11-05

摘要: 对G.723.1语音编解码算法和混沌系统的特点进行分析,提出了一种在语音混沌保密通信过程中进行信息隐藏的方案,利用编码语音数据的低有效位安全传递保密信息。试验证明,该方案可以实现密钥的隐蔽传输和实时更新,进一步提高通信过程的抗破译能力。能够广泛应用于各种需要保密通信的场所,防止遭到窃听,保证信息安全。

关键词: G.723.1, 混沌系统, 信息隐藏

Abstract: For the features of G.723.1 and chaos-based system, this paper introduces an approach that hides the information in chaos-based secure communication system by sending information in the less significant bits of the coded audio data. Experimental result proves that hidden transfer and real-time update of the key makes the system more secure. It can be widely used in places where secure communication is needed to avoid wiretapping and guarantee security.

Key words: G.723.1, chaos-based system, information hiding

中图分类号: