CAJ | 학술논문

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。
심입연구G.729어음압축산법，통계압축비특류불중요위，제출재G.729압축어음류중감입비밀신식적신식은장산법。병재차산법기출상설계출IP망락어음은폐통신계통，사기능구재보통적중저속IP망락중통과망락어음통화，진행은폐통신，제고비밀신식전수적안전성。
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.