丢失音频数据包的隐写技术研究
On Steganography in Lost Audio Packets
摘要:
本文提出了一种新的隐藏数据插入过程的基础上估计的剩余时间的调用隐写方法称为LACK(丢失音频包隐写)。LACK为IP语音等实时服务提供隐藏通信。本文提出的分析结果关注的影响,LACK的隐藏数据插入程序的方法的影响,语音传输质量和抗隐写分析。建议的隐藏数据插入过程也比较以前的隐写图插入方法的基础上估计剩余的平均通话时间。
英文摘要:
The paper presents a new hidden data insertion procedure based on estimated probability of the remaining time of the call for steganographic method called LACK (Lost Audio PaCKets steganography). LACK provides hidden communication for real-time services like Voice over IP. The analytical results presented in this paper concern the influence of LACK's hidden data insertion procedures on the method's impact on quality of voice transmission and its resistance to steganalysis. The proposed hidden data insertion procedure is also compared to previous steganogram insertion approach based on estimated remaining average call duration.
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