摘要
VoIP技术在迅猛发展的同时,也给通信信息的安全带来了挑战。犯罪者和恐怖分子可以利用该技术,在VoIP隐信道中嵌入秘密数据以进行非法活动。本文针对VoIP数据包中的负载语音数据上的LSB隐写术,提出了一种改进的样本对隐写分析算法,检测的正确率达到95%以上,对于防止VoIP中的非法秘密通信具有重要的意义。
The rapid development of VoIP technology brings the challenges of information communication security.Criminals and terrorists can use the VoIP technology to embed secret data into hidden channel for illegal activities.In the paper,in view of LSB steganography on the load of VoIP packet voice data,we proposed an improved steganalysis algorithm based on sample pairs analysis.The detection rate can be up to 95%.The proposed method could play an important role in prevention of illegal VoIP communication.
出处
《电信科学》
北大核心
2010年第S2期274-277,共4页
Telecommunications Science
