摘要
深入研究G.729语音压缩算法,统计压缩比特流不重要位,提出在G.729压缩语音流中嵌入秘密信息的信息隐藏算法。并在此算法基础上设计出IP网络语音隐蔽通信系统,使其能够在普通的中低速IP网络中通过网络语音通话,进行隐蔽通信,提高秘密信息传输的安全性。
Through the intensive study of G.729 voice compression algorithm and statistics of unimportant bit in the com-pressed bit stream, an information hiding algorithm that embeds secret messages in G.729 compressed voice bit stream is pro-posed. An IP net voice covert communication system is designed based on this algorithm to realize the covert communication in nor-mal mid-low speed IP net through network voice communication and improve the security of the secret information transformation.
出处
《现代电子技术》
2013年第17期68-70,74,共4页
Modern Electronics Technique
基金
国家自然科学基金资助项目(61272043)
